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Bradyrhizobium elkanii a bacterium that forms symbiotic relationships with legume roots, significantly improving nitrogen availability in the soil, which is essential for leguminous crop production. < Microbial Species Bradyrhizobium elkanii Bradyrhizobium elkanii a bacterium that forms symbiotic relationships with legume roots, significantly improving nitrogen availability in the soil, which is essential for leguminous crop production. Strength 1 x 10⁸ CFU per gram / 1 x 10⁹ CFU per gram / 1 x 10¹⁰ CFU per gram Product Enquiry Buy this species Download Brochure Benefits Nitrogen Fixation Bradyrhizobium elkanii forms symbiotic relationships with leguminous plants, fixing atmospheric nitrogen into ammonia, which enhances soil fertility and plant growth. Enhanced Nutrient Availability It enhances the availability of essential nutrients such as phosphorus and iron to the host plant, contributing to improved plant health and yield. Stress Tolerance Bradyrhizobium elkanii produces stress-protective compounds like exopolysaccharides, aiding plants in coping with environmental stresses such as drought and salinity. Biocontrol Agent It competes with pathogenic microorganisms in the rhizosphere, helping to suppress plant diseases and promote healthier plant growth. Dosage & Application Additional Info Scientific References Mode of Action Sustainability Advantage FAQ Scientific References Scientific References and Molecular Mechanisms of Symbiosis (2025 Update) Overview of Bradyrhizobium elkanii Symbiotic Signaling The establishment of B. elkanii-legume symbiosis is a sophisticated molecular dialogue involving plant-derived signals (flavonoids), bacterial Nod factors (NFs), Type III secretion system (T3SS) effectors, and host-encoded resistance proteins. This intricate regulatory network determines host specificity, nodule organogenesis, and nitrogen fixation efficiency. 1. Molecular Signaling Initiation Flavonoid-Mediated Activation Host-to-Bacterium Signal:Legume roots experiencing nitrogen starvation exude flavonoid compounds (e.g., genistein, daidzein, luteolin) into the rhizosphere. These flavonoids penetrate the B. elkanii cell membrane and bind to the NodD regulatory protein, a member of the LysR family of transcriptional regulators. Key Research Findings: Flavonoid concentrations as low as 10⁻⁸ M activate nod gene expression in B. elkanii Different legume species exude distinct flavonoid profiles, contributing to host specificity Transcription of the nodYABCSUIJnolMNOnodZ operon is directly dependent upon NodD-flavonoid complexes TtsI (transcriptional activator of T3SS) is also responsive to flavonoids and coordinates both Nod factor and T3SS expression Regulatory Architecture The B. elkanii regulatory circuit involves: NodD: LysR-type regulator controlling nod gene expression NodW: Regulatory protein modulating flavonoid recognition TtsI: Transcriptional regulator of T3SS genes, activated by plant flavonoids Coordination of these regulators ensures spatiotemporal expression of symbiotic genes 2. Nod Factor Biosynthesis and Host Recognition Structure and Function Nod Factors (NFs):Nod factors are lipochitooligosaccharides (LCOs) comprising a backbone of 3–5 N-acetyl-D-glucosamine (GlcNAc) units with a long-chain fatty acyl group (C16–C18) attached to the non-reducing terminus. Nod Gene Clusters in B. elkanii: nodA: Encodes N-acetyl transferase; transfers the acyl chain to the GlcNAc backbone nodB: N-acetyl lyase; removes N-acetyl group from the non-reducing terminus nodC: Chitin synthase; synthesizes the GlcNAc backbone nodS, nodU, nodI, nodJ: Involved in modification and transport of Nod factors nodZ: Encodes a glucosidase involved in Nod factor modification for B. elkanii-specific legume recognition Nod Factor Modification B. elkanii produces modified Nod factors unique to this species: Acetyl substitution patterns differ between strains Host-specific decorations on the oligosaccharide backbone determine compatibility with legume receptors (NFRs: Nod Factor Receptors) Molecular recognition is highly specific; B. elkanii NF structure triggers nodulation in soybean (Glycine max), but not in hosts compatible with other rhizobia Structural Variations and Host Specificity B. elkanii genomes harbor extensive nodulation gene repertoires: Multiple nod gene variants on symbiotic islands allow synthesis of a spectrum of Nod factor structures Comparative genomic analysis reveals gene duplications and deletions affecting Nod factor decoration These variations contribute to the competitive nodulation phenotype of B. elkanii and its ability to nodulate multiple legume hosts at variable efficiency 3. Type III Secretion System (T3SS) and Effector Proteins T3SS Architecture The T3SS is a molecular syringe-like apparatus embedded in the bacterial cell envelope that delivers effector proteins (Nops: nodulation outer proteins) directly into host plant cells. T3SS Components in B. elkanii: RhcJ: Outer membrane channel protein RhcV: Inner membrane channel protein RhcQ: ATPase providing energy for protein secretion RhcC, RhcD, RhcE, RhcF: Basal body proteins FlhA, FliK, FliP: Apparatus assembly proteins Transcriptional Control: T3SS gene expression is controlled by TtsI (transcriptional activator) TtsI is activated by plant flavonoids, creating a coordinated response with Nod factor synthesis The T3SS is activated only in the presence of compatible plant roots, preventing wasteful energy expenditure in the soil T3SS Effector Proteins and Functions NopL: Key Determinant for Nodule Organogenesis Function: NopL is among the most critical T3SS effectors, particularly for B. elkanii USDA61 symbiosis with certain legume species (e.g., Vigna mungo). NopL-deleted mutants form infection threads on Vigna mungo roots but fail to establish nodules, indicating its essential role in nodule primordia formation NopL is exclusively conserved among Bradyrhizobium and Sinorhizobium genera, suggesting ancient evolutionary origin Phylogenetic analysis indicates NopL diverged from the canonical T3SS lineage, suggesting specialized symbiotic function Mechanism: NopL enters host cell nuclei and likely interacts with plant transcription factors Suppresses host immune responses that would otherwise block infection Triggers expression of early nodulation genes required for meristem initiation Bel2-5: NF-Independent Nodulation Effector Dual Functions: In some legumes (e.g., soybean nfr1 mutants), Bel2-5 can trigger nodulation independently of Nod factors In soybean carrying the Rj4 allele (dominant resistance gene), Bel2-5 acts as a virulence factor, triggering immune responses that prevent infection Structural Features: Contains ubiquitin-like protease (ULP) domain Two EAR (ethylene-responsive element-binding factor-associated amphiphilic repression) motifs for transcriptional regulation Nuclear localization signal (NLS) enabling entry into plant cell nuclei Internal repeat sequences with unknown function Shares structural similarity with XopD from the plant pathogen Xanthomonas campestris pv. vesicatoria Domain-Function Correlation: The C-terminal ULP domain and upstream regions are critical for Bel2-5-dependent nodulation phenotypes Mutations in EAR motifs abolish nodulation ability Deletion of NLS impairs nuclear targeting and symbiotic function InnB: Strain-Specific Symbiotic Modulator Host-Specific Effects: InnB promotes nodulation on Vigna mungo cultivars InnB restricts nodulation on Vigna radiata cv. KPS1 This differential phenotype reflects distinct recognition mechanisms in different legume species Expression and Localization: innB expression is flavonoid-dependent and TtsI-regulated InnB protein is secreted via T3SS and translocated into host cells Adenylate cyclase assays confirm T3SS-dependent translocation into nodule cells NopM: Ubiquitin Ligase Triggering Senescence Function: NopM triggers early senescence-like responses in incompatible hosts (e.g., Lotus species). Possesses E3 ubiquitin ligase domain and leucine-rich-repeat domain Acts similarly to PAMP-triggered immunity (PTI) and effector-triggered immunity (ETI) in pathogenic bacteria Mediates ubiquitination of host target proteins, leading to degradation and immune responses Results in browning of nodules and disrupted symbiosis Phylogenetic Conservation: NopM homologs are found in both pathogenic and symbiotic bacteria, highlighting the evolutionary relatedness of virulence and symbiotic mechanisms NopF: Infection Thread Inhibitor Role in Host Specificity: NopF triggers inhibition of infection thread formation in Lotus japonicus Gifu Represents a post-recognition checkpoint for host-pathogen compatibility Allows alternative legume accessions (L. burttii, L. japonicum MG-20) to proceed with symbiosis, despite presence of NopF NopP2: Fine-Tuning Symbiotic Efficiency Function: NopP2 fine-tunes symbiotic effectiveness with Vigna radiata. Located within the symbiotic island near the nif cluster Differential effects depending on host genotype and strain background Contributes to variable nodulation phenotypes among B. elkanii strains 4. Host Specificity and Rj Gene-Mediated Resistance The Rj Gene System in Soybean Soybean (Glycine max) possesses a dominant host resistance system controlled by Rj (Rejection) genes that restrict nodulation by specific Bradyrhizobium strains. Rj4 Gene: Encodes a thaumatin-like protein (TLP), a member of the pathogenesis-related (PR-5) protein family Structurally similar to plant anti-fungal proteins Restricts nodulation by many B. elkanii strains, particularly Type B strains (e.g., USDA61) Soybean cultivars carrying Rj4 are incompatible with B. elkanii but compatible with Bradyrhizobium diazoefficiens USDA110 Rj2 Gene: Encodes a TIR-NBS-LRR protein (Toll-interleukin receptor/nucleotide-binding site/leucine-rich repeat) Represents a receptor-like immune protein structurally similar to plant R proteins for pathogen resistance Critical amino acid I490 (isoleucine) in Rj2 determines incompatibility with Bradyrhizobium diazoefficiens USDA122 Restricts specific rhizobial strains but allows infection by compatible strains Rj3 Gene: Restricts B. elkanii Type B strains (e.g., BLY3-8, BLY6-1, USDA33) despite allowing nodulation by B. japonicum USDA110 T3SS and its effectors are critical for Rj3-mediated incompatibility Mutations in T3SS components (TtsI, RhcJ) overcome Rj3 restriction, confirming T3SS involvement Gene-for-Gene Model of Symbiotic Specificity The B. elkanii-soybean system exemplifies a gene-for-gene interaction: Bacterial avirulence gene (avr): T3SS effector genes (e.g., nopL, bel2-5, nopM) function as avirulence determinants Plant resistance gene (R): Soybean Rj genes encode receptors recognizing effector-triggered immune responses Incompatibility occurs when bacterial effector matches soybean R gene recognition specificity Compatibility requires bacterial effectors that evade or suppress Rj-mediated immunity 5. Infection and Nodule Development Infection Thread Formation Stages: Pre-infection: Nod factors bind to NFR1/NFR5 receptors on legume root epidermis, activating early symbiotic signaling Infection initiation: B. elkanii invades through root hair curling (Nod factor-dependent) or via crack entry (T3SS-dependent in certain genotypes) Intercellular infection: Bacteria travel through infection threads (wall-bound tubular structures) into the cortex Release and bacteroid formation: Bacteria are released into cortical cells and enclosed within plant-derived peribacteroid membranes Role of T3SS in Infection Nod factor-independent nodulation: B. elkanii T3SS effectors (particularly Bel2-5) can trigger nodulation of soybean nfr1 mutants lacking functional Nod factor receptors Infection thread progression: T3SS suppresses plant defense responses (ROS production, ethylene synthesis) that normally block infection thread elongation Bacterial release: T3SS effectors facilitate bacterial transition from infection threads into cortical cells for bacteroid development Nodule Organogenesis and Development Transcriptional Reprogramming: B. elkanii T3SS effectors and Nod factors activate soybean early nodulation genes: ENOD40, ENOD93, NIN (Nodule Inception), NSP1, NSP2 These plant genes activate meristem-like programs in cortical cells, initiating nodule primordia Coordinated T3E activity (NopL, Bel2-5, NopP2) is essential for primordia formation Nodule Maturation: Infected cells undergo endoreduplication (multiple rounds of DNA replication without cell division) Cortical cells expand to accommodate dividing bacterial cells Peribacteroid membranes establish nutrient exchange compartments Gibberellin Role: B. elkanii synthesizes gibberellin precursor (GA₉) via cytochrome P450 monooxygenase Host soybean expresses GA 3-oxidases (GA3ox) within nodules, converting GA₉ to bioactive GA₄ GA₄ regulates nodule size, influences meristem bifurcation, and modulates senescence Higher GA levels correlate with increased nodule size and bacterial progeny, providing selective advantage to GA-producing strains 6. Nitrogen Fixation Biochemistry Nitrogenase Enzyme Complex Components: Component I (MoFe protein): Contains molybdenum and iron clusters Component II (Fe protein): Contains iron-sulfur cluster; transfers electrons to Component I Electron donors: Bacteroid respiration provides reducing power; organic acids (malate, α-ketoglutarate) drive electron transport Catalytic Reaction:[ \text{N}_2 + 8 e^- + 16 \text{ATP} \to 2 \text{NH}_3 + \text{H}_2 + 16 \text{ADP} + 16 P_i ] Key Features: Requires strictly anaerobic conditions (oxygen sensitivity) Demands substantial ATP input (~16 molecules ATP per N₂ molecule fixed) B. elkanii bacteroids express oxygen-scavenging mechanisms including leghemoglobin synthesis Oxygen Management in Nodules Oxygen Gradient: Outer nodule layers maintain aerobic respiration for ATP generation Interior nodule zones remain anaerobic for nitrogenase activity B. elkanii respiration consumes oxygen in bacterial layers, maintaining hypoxia in nitrogenase-active compartments Oxygen-Protective Mechanisms: Leghemoglobin (plant-encoded, bacteroid-synthesized iron-containing protein) buffers oxygen at nanomolar levels, preventing nitrogenase inactivation Bacteroid differentiation produces enlarged, polyploid cells with reduced permeability to oxygen Expressed late nodulation proteins (Nols) contribute to oxygen protection Metabolic Integration Carbon-Nitrogen Balance: Host plants provide carbohydrates (photosynthetically-derived organic acids) to bacteroids B. elkanii oxidizes organic acids via citric acid cycle and electron transport chains, generating ATP and reducing equivalents for nitrogenase Efficient strains (e.g., B. elkanii USDA76) show higher enzyme levels for Nod factor synthesis and metabolic integration Ammonia Utilization: Ammonia fixed by nitrogenase is rapidly assimilated via glutamine synthetase (GS) in bacteroids However, much ammonia is excreted to host cells, where plants incorporate it into amino acids (glutamine, aspartate) Plant cells return nitrogen to bacteroids as amino acids and organic compounds, establishing exchange equilibrium 7. Regulatory Networks and Gene Expression NifA-RpoN Regulatory Circuit NifA: Sigma-54-dependent transcriptional activator controlling expression of nitrogen fixation (nif) and related genes Activates nifHDK genes encoding nitrogenase structural proteins Responsive to oxygen levels; activated under microoxic conditions characteristic of nodule interiors Coordinates temporal expression of nif genes with nodule development progression RpoN: Sigma-54 RNA polymerase recognizing NifA-bound promoters Directs transcription from nif promoters bearing NifA-binding sites Links nitrogen fixation gene expression to nodule maturation stage GlnR Regulatory Protein Function: Controls nitrogen assimilation genes and cross-talks with symbiotic signaling Represses genes for nitrogen scavenging (e.g., ABC transporters) when ammonia is abundant Releases repression when ammonia becomes limiting, activating alternative nitrogen acquisition pathways Prevents metabolic conflict during high nitrogen fixation rates AdeR (Adenine Deaminase Regulator) Role: Modulates purine metabolism and symbiotic efficiency Controls genes involved in nucleotide synthesis Adjusted expression enables rapid bacterial replication in nodules while supporting biosynthesis of symbiotic proteins 8. Comparative Genomics: Symbiotic Island Architecture Symbiotic Island Composition B. elkanii genomes contain low GC-content regions (symbiotic islands) harboring symbiosis-essential genes: Island A (Main symbiotic island): ~690 kb Contains nod cluster: nodABC, nodD, nodZ, regulatory sequences Contains nif cluster: nifHDK, nifENX, fixABCX Contains fix genes (flavoproteins, cytochromes) for electron transport Island B (Small region): ~4–44 kb Variable across strains; minimal genes Island C: ~200–518 kb Contains additional metabolic and regulatory genes Variable gene content among B. elkanii strains Lateral Gene Transfer and Evolutionary Plasticity Pangenome Analysis: Bradyrhizobium pangenome: 84,078 gene families across species Core genome: 824 genes (essential cell processes) Accessory genome: 42,409 genes (including symbiotic, metabolic, stress response functions) B. elkanii genomes are moderately stable compared to highly plastic genomes of some Sinorhizobium species Genetic Variations: SNPs and indels in symbiotic islands correlate with symbiotic phenotype differences Polymorphisms in nif, fix, and nodulation regulatory genes drive intraspecific variation Integrative conjugative elements (ICEs) facilitate horizontal transfer of symbiotic genes between Bradyrhizobium strains 9. Stress Response and Environmental Adaptation Osmotic Stress Tolerance Mechanisms: Production of exopolysaccharides (EPS) and trehalose Upregulation of osmolyte synthesis under salt stress Maintenance of cell membrane integrity under water deficit Acid-Soil Adaptation pH Tolerance: Many B. elkanii strains tolerate pH 4.5–6.5, though optimal nodulation occurs at pH 6.0–7.5 Expression of acid-tolerance proteins enables survival in acidic soils Selection pressure in Brazilian Cerrado soils (naturally acidic) has generated acid-adapted B. elkanii strains Mode of Action Step-by-Step Nodulation Process Phase 1: Recognition and Signaling (Hours 0–12) Host root exudation of flavonoids B. elkanii perception and chemotaxis toward root Activation of nod gene transcription via NodD-flavonoid interaction Synthesis and secretion of Nod factors Nod factor recognition by plant NFR1/NFR5 receptors Initiation of early nodulation gene expression in plant Phase 2: Infection (Days 1–3) Root hair curling and bacterial microcolony formation Infection thread invasion through root epidermis T3SS-mediated suppression of plant defense responses Intercellular infection thread progression toward cortex Bacterial translocation into cortical cells Phase 3: Nodule Organogenesis (Days 3–7) Induction of cortical cell mitosis (meristem activation) Differentiation of nodule tissues (vascular bundle, infection zone) Bacterial release from infection threads Formation of peribacteroid membranes Nodule structure maturation Phase 4: Bacteroid Differentiation and Nitrogen Fixation (Days 7–21) B. elkanii endoreduplication and morphological differentiation Expression of nitrogenase (nif) and iron-sulfur cluster synthesis genes Establishment of microaerobic environment Initiation of nitrogen fixation Nitrogen transfer to host plant Phase 5: Sustained Symbiosis (Weeks 3–Harvest) Peak nitrogen fixation rates Continuous nitrogen supply to plant Bacterial maintenance and reproduction within nodules Age-dependent nodule senescence in late pod-fill stages Additional Info Recommended Crops: Cereals, Millets, Pulses, Oilseeds, Fibre Crops, Sugar Crops, Forage Crops, Plantation crops, Vegetables, Fruits, Spices, Flowers, Medicinal crops, Aromatic Crops, Orchards, and Ornamentals. Compatibility: Compatible with Bio Pesticides, Bio Fertilizers, and Plant growth hormones but not with chemical fertilizers and chemical pesticides. Shelf Life: Stable within 1 year from the date of manufacturing. Packing: We offer tailor-made packaging as per customers' requirements. Dosage & Application Crop Recommendations and Compatibility Compatible Legumes for B. elkanii Primary Hosts: Soybean (Glycine max) – highest efficiency and most extensively studied Peanut (Arachis hypogaea) – excellent nodulation; SEMIA 6144 strain widely used Mung Bean (Vigna radiata) – strain-dependent compatibility (USDA61 is incompatible with some cultivars) Black-Eyed Pea (Vigna unguiculata) – variable efficiency depending on strain Secondary Hosts (with strain-specific compatibility): Groundnut (Arachis hypogaea) Yard-long Bean (Vigna unguiculata subsp. sesquipedalis) Black Gram (Vigna mungo) – USDA61 strain shows exceptional specificity Broad Host Range (Associated Legumes): Various Vigna species Certain Vicia species Select native legume species Non-Host Associations (Growth Promotion Without Nodulation) B. elkanii can colonize grass roots and promote growth through: Production of plant growth hormones (IAA, gibberellins) Enhanced root development and mineral uptake Demonstrated effects on: white oats, black oats, ryegrass Associated References: Similar to Paenibacillus azotofixans, which also promotes non-legume growth through PGPR mechanisms, B. elkanii exhibits plant growth-promoting properties beyond nodulation. Compatibility with Agricultural Inputs Input Type Compatibility Notes Bio-Pesticides Compatible Use with caution; avoid simultaneous application with broad-spectrum fungicides Bio-Fertilizers Compatible Synergistic effects with phosphate-solubilizing bacteria (PSB) observed Plant Growth Hormones Compatible Enhanced effects when combined with IAA or gibberellin-producing organisms Chemical Fertilizers Incompatible Avoid high rates of urea; inhibit nodule formation and nitrogen fixation Fungicides (Broad-Spectrum) Incompatible Fungicides reduce bacterial viability; use selective agents or pre-inoculation strategies Herbicides Compatible (Selective) Most herbicides compatible; avoid herbicides with antimicrobial activity Insecticides Compatible (Most) Compatibility varies by class; pyrethroids and neonicotinoids generally safe Shelf Life and Storage Shelf Life: Stable for up to 1 year from manufacturing date under proper conditions Storage Temperature: Cool, dry conditions; maintain 4–15°C for extended viability Light Protection: Store away from direct sunlight (UV light reduces viability) Humidity: Keep in sealed containers to prevent moisture loss Monitoring: Check for discoloration, odor, or contamination before use; discard if compromised Dosage and Application Methods Seed Coating/Seed Treatment Protocol: Prepare slurry: Mix 10 g of Bradyrhizobium elkanii with 10 g crude sugar in sufficient water Coat 1 kg of seeds evenly with slurry mixture Dry coated seeds in shade before sowing (allow 2–3 hours) Sow treated seeds immediately or store in cool, dry conditions for up to 60–90 days (viability maintained with proper storage) Advantages: Simple, cost-effective, ensures bacterium-seed contact, minimal equipment Seedling Treatment (Nursery Application) Protocol: Mix 100 g of Bradyrhizobium elkanii with sufficient water Dip seedling roots into inoculant slurry for 5–10 minutes Transplant seedlings into field immediately Applications: Nursery-raised legumes (peanut, some vegetables); labor-intensive but ensures high infection rates Soil Application (Broadcasting) Protocol: Mix 3–5 kg per acre of Bradyrhizobium elkanii with organic manure or vermicompost Distribute mixture uniformly across field during land preparation Incorporate into soil by plowing or harrowing 2–3 weeks before sowing Alternatively, apply close to seeding for rapid root colonization Advantages: Builds soil population; benefits residual inoculum for crop rotations Rate: 3–5 kg/acre optimal for establishment of ~10⁷–10⁸ CFU/g soil Irrigation/Fertigation Application Protocol: Mix 3 kg per acre of Bradyrhizobium elkanii in water (1:10 ratio) Pass through 100-mesh filter to remove particles Apply via drip lines or sprinkler irrigation system Best applied in evening to reduce UV exposure Advantages: Reaches established root systems; applicable post-emergence; supports nodule maintenance Timing: Early vegetative stages (V2–V4) for maximum nodule formation FAQ General Biology and Function What makes Bradyrhizobium elkanii different from free-living nitrogen fixers like Paenibacillus azotofixans? Bradyrhizobium elkanii is a symbiotic nitrogen fixer that forms intimate associations with legume roots and establishes specialized nitrogen-fixing nodules. In contrast, Paenibacillus azotofixans is a free-living nitrogen fixer that operates independently in soil without forming nodules. B. elkanii achieves higher nitrogen fixation rates (100–300 kg N/ha/season) through symbiotic cooperation with host plants, whereas P. azotofixans supplies more modest benefits (20–50 kg N/ha depending on conditions). B. elkanii cannot infect non-legume hosts, while P. azotofixans benefits a broad range of crop species through general PGPR mechanisms. For legume cultivation, B. elkanii is the preferred choice due to superior nitrogen fixation efficiency. How does Bradyrhizobium elkanii survive in different soil conditions? B. elkanii survives through multiple strategies. As a non-spore-forming bacterium, it depends on competitive fitness and metabolic flexibility rather than dormancy. B. elkanii tolerates: Acidic soils (pH 4.5–6.5): Acid-adapted strains (e.g., from Brazilian Cerrado) have evolved acid-tolerance proteins Drought: Produces exopolysaccharides (EPS) and osmolytes for osmotic balance Salinity: Synthesizes antioxidant molecules and ionic homeostasis proteins Temperature fluctuations: Expresses heat-shock proteins and cold-adaptation proteins Nutrient starvation: Metabolic versatility supports survival on minimal carbon and nitrogen sources Survival in soils is enhanced by host plant association, which supplies carbohydrates and maintains favorable microenvironments within root nodules. Can Bradyrhizobium species work synergistically with other soil bacteria? Yes, synergistic effects are well-documented: Phosphate-solubilizing bacteria (PSB): Co-inoculation with PSB (e.g., Bacillus megaterium) enhances phosphorus availability, improving B. elkanii nodule formation and nitrogen fixation Azospirillum species: Co-inoculation of B. elkanii with Azospirillum brasilense produces superior soybean growth through complementary IAA production; IAA stimulates root growth, improving rhizobial infection Bacillus subtilis: Co-inoculation in saline-alkali soils increased soybean yield by 18% compared to B. elkanii alone Biofilm formation: In consortia, rhizobia establish biofilms on root surfaces, enhancing competition with native rhizobia and pathogenic microbes What is the optimal soybean genotype for B. elkanii nodulation? Optimal genotypes depend on strain compatibility with soybean Rj genes: Best compatibility: Non-Rj genotypes and Rj4-gene carriers (with compatible B. elkanii strains, but not USDA61) Poor compatibility: Rj3-genotype cultivars generally incompatible with B. elkanii Type B strains Strain-specific: B. elkanii strains vary in effectiveness with different cultivars USDA76, SEMIA 587, SEMIA 5019: Good nodulation on most soybean genotypes USDA61: Excellent on soybean but incompatible with Rj4 genotypes Elite strains (e.g., ESA 123): Superior performance in drylands Recommendation: For maximum nitrogen fixation, select cultivars without restrictive Rj genes and pair with adapted strain Agricultural Applications and Management Which crops benefit most from Bradyrhizobium elkanii application? All legume crops benefit, but effectiveness varies: Highest benefit: Soybean, peanut, mung bean (90–300 kg N/ha fixation) Good benefit: Black-eyed pea, groundnut, yard-long bean (100–200 kg N/ha) Situational benefit: Native legumes, forage legumes (highly variable) No benefit: Non-legume crops (though limited growth promotion observed with some grasses) Factors maximizing benefit: Presence of native rhizobial population <10⁴ CFU/g soil Absence of antagonistic soil microbes Compatible soybean genotype (for soybean) Adequate soil pH (5.5–7.5) Highest ROI crops: Soybean in virgin soils; peanut in semi-arid regions with drought-adapted strains How quickly can farmers expect to see results from Bradyrhizobium elkanii inoculation? Timeline: 1–2 weeks post-inoculation: Infection thread formation; root colonization progresses 2–4 weeks: Visible nodule appearance; initiation of nitrogen fixation 4–8 weeks: Peak nodulation and nitrogen fixation rates established 8–16 weeks (R1–R5 stages in soybean): Cumulative nitrogen benefit becomes apparent in plant biomass Harvest: Final yield difference becomes quantifiable Field observations: Early-inoculated plants show accelerated growth compared to uninoculated controls Root development superior within 3–4 weeks Leaf color and vigor improvements evident by 6–8 weeks Yield increase: 5–60% depending on initial soil population and environmental conditions Maximum benefit: Observed at crop maturity; early-season nodulation establishes sustained nitrogen supply for pod fill and grain development Is Bradyrhizobium elkanii compatible with other agricultural inputs? Compatibility Summary: ✓ Bio-pesticides: Compatible (exclude broad-spectrum fungicides) ✓ Bio-fertilizers & PSB: Highly compatible; synergistic effects ✓ Plant hormones (IAA, GA): Compatible; enhanced effects ✓ Herbicides: Most compatible; avoid antimicrobial formulations ✗ Chemical fertilizers: High nitrogen rates inhibit nodulation ✗ Broad-spectrum fungicides: Lethal to B. elkanii; use selective or post-inoculation application ✗ Chemical nematicides: Many reduce viability Recommendation: Apply B. elkanii as early as possible (seed or pre-plant soil); avoid fungicides during first 4–6 weeks post-inoculation. Nitrogen fertilizers should be minimal (<50 kg N/ha) to avoid suppression of nitrogen fixation. Environmental Impact and Sustainability Does Bradyrhizobium elkanii have any environmental risks? Safety Profile: Naturally occurring soil bacterium; non-pathogenic to plants and animals No environmental accumulation; subject to normal soil microbial turnover Approved for organic farming systems (non-GMO) Reduces synthetic fertilizer use, thereby lowering greenhouse gas emissions Environmental Benefits: Replaces ~100–300 kg N/ha of synthetic fertilizer per crop season Synthetic fertilizer production accounts for ~2% of global energy use; B. elkanii reduces this footprint Decreases soil contamination risk from excess nitrate leaching Improves soil carbon sequestration through enhanced root exudation and organic matter Potential concerns (minimal): If non-competitive strains displace native rhizobia (rare; native populations typically recover) Nodule senescence releases carbon; however, net soil carbon often increases due to residual legume biomass Overall: B. elkanii inoculation is environmentally sound and beneficial to soil ecosystems How does Bradyrhizobium elkanii contribute to sustainable farming? Sustainability Contributions: Nitrogen cycle restoration: Reduces dependence on Haber-Bosch synthetic nitrogen Soil health: Improves biological activity, organic matter, and aggregate stability Crop rotation benefits: Legume crops (with B. elkanii) replenish nitrogen for subsequent cereal crops; reduces fertilizer for following season by 30–50% Carbon footprint reduction: Avoids emissions from fertilizer production (~0.5 kg CO₂ per kg N eliminated) Resilience to climate variability: Nitrogen fixation continues under drought (strain-dependent) better than relying on soil nitrogen pools Economic sustainability: Inoculant cost (~$2–5 per hectare) << synthetic nitrogen fertilizer cost (~$15–40 per hectare) Broader implications: Integration of B. elkanii inoculation into farming systems supports UN Sustainable Development Goal 12 (Responsible Consumption and Production) and Goal 13 (Climate Action) Can Bradyrhizobium elkanii help with climate change mitigation? Direct contributions: Reduced N₂O emissions: Elite strains carrying N₂O reductase (nos genes) reduce soil N₂O emissions by ~70% compared to standard strains Fertilizer reduction: Each kilogram of synthetic nitrogen avoided saves ~5 kg CO₂ equivalent from production and transport Soil carbon sequestration: Enhanced root exudation and legume residue decomposition increases soil carbon stocks Example calculation: Soybean field (50 ha) with B. elkanii inoculation Replaces 100 kg N/ha with biological fixation Avoids: 5,000 kg CO₂ equivalent (from fertilizer production), 100 kg N₂O equivalent (20 kg CO₂ equivalent), 250 kg CO₂ (from transport/application) Total mitigation: ~5,370 kg CO₂ equivalent per season Product Selection and Application Strategies How should Bradyrhizobium elkanii products be stored? Storage Conditions: Temperature: 4–15°C (cool, dry storage) Light: Darkness (UV light reduces viability by ~50% per week) Humidity: Sealed containers; humidity <70% Duration: Up to 1 year from manufacturing date Storage best practices: Keep in original sealed containers Store in dedicated cool storage (not with agrochemicals or fertilizers) Avoid direct sunlight, heat exposure Do not refrigerate below 4°C (cold stress reduces viability) Check for discoloration, foul odor, or contamination before use Discard products exceeding shelf life or showing signs of degradation Pre-application checks: Verify CFU concentration (should be ≥10⁸ CFU/g) Confirm expiration date Check for clumping or separation (sign of degradation) What is the optimal application timing for Bradyrhizobium elkanii? Timing Strategy: Best: Seed treatment 3–14 days before sowing (allows infection thread formation before water stress from germination) Good: At-planting seed treatment (simultaneous with sowing) Acceptable: Soil application 2–3 weeks before sowing (establishes soil population) Last resort: Early V2–V4 application (later than ideal but still effective) Seasonal considerations: Spring planting: Warmer soils favor infection; apply when soil temperature ≥15°C Monsoon crops: Ensure good soil drainage; waterlogged soils reduce nodulation Dry seasons: Apply post-irrigation or pre-monsoon for optimal soil moisture Sequential plantings: If crop residue is retained (no-till), residual soil population often supports second-year crops; re-inoculation beneficial only if populations fall below 10⁴ CFU/g soil Can organic farmers use Bradyrhizobium elkanii? Organic Certification Status: Yes, fully approved for certified organic production Bradyrhizobium elkanii is a naturally occurring, non-GMO soil bacterium Meets IFOAM (International Federation of Organic Agriculture Movements) standards Complies with organic certification requirements (USDA National Organic Program, EU Organic Regulation, others) Organic system benefits: Eliminates synthetic nitrogen fertilizer requirement Supports crop rotation strategies Improves soil biological diversity Aligns with organic philosophy of biological nutrient cycling Recommendations for organic farmers: Use seed treatments rather than synthetic fungicide combinations Apply biological inoculants early (seed or pre-plant) Avoid synthetic fungicides during critical nodulation period (first 4–6 weeks) Incorporate into comprehensive organic management (crop rotation, adequate organic matter, proper pH) Connecting B. elkanii and P. azotofixans While Bradyrhizobium elkanii and Paenibacillus azotofixans represent distinct nitrogen-fixing strategies, both contribute to agricultural sustainability: Characteristic B. elkanii P. azotofixans Nitrogen fixation strategy Symbiotic (nodulation) Free-living soil Host range Legumes (highly specific) Broad host range (all crops) Nitrogen contribution 100–300 kg N/ha/season 20–50 kg N/ha/season Nodule formation Yes; essential No PGPR functions Limited (nodulation-focused) Multiple (IAA, GA, biocontrol) Best use Legume crops Non-legumes and supplementary legume inoculation Interaction Can compete for nodule occupancy Complementary; enhances B. elkanii effectiveness via IAA production Integrated Approach: In diversified farming systems, B. elkanii inoculant for legume crops followed by P. azotofixans for non-legume crops creates a comprehensive biological nitrogen management strategy. Conclusion Bradyrhizobium elkanii represents a cornerstone microorganism for sustainable legume production. Its sophisticated molecular mechanisms for host recognition, infection, and nitrogen fixation, combined with practical agricultural benefits, make it indispensable for modern sustainable agriculture. With proper strain selection, timing, and integration with complementary practices, B. elkanii inoculation can significantly improve crop yields, reduce fertilizer dependency, and enhance soil health across diverse agroecosystems. Sustainability Advantage Related Products Acetobacter xylinum Azospirillum brasilense Azospirillum lipoferum Azospirillum spp. Azotobacter vinelandii Beijerinckia indica Bradyrhizobium japonicum Gluconacetobacter diazotrophicus More Products Resources Read all

Pseudomonas stutzeri is a versatile bacterium essential in the nitrogen cycle, performing denitrification to convert nitrates into nitrogen gas, aiding in nitrogen balance and pollution reduction. Its ability to degrade hydrocarbons, pesticides, and heavy metals makes it a key player in bioremediation and wastewater treatment. Additionally, it supports sustainable agriculture through phosphate solubilization and plant growth promotion. Its adaptability and diverse metabolic capabilities position it as a valuable organism for environmental restoration and biotechnological applications. < Microbial Species Pseudomonas stutzeri Pseudomonas stutzeri is a versatile bacterium essential in the nitrogen cycle, performing denitrification to convert nitrates into nitrogen gas, aiding in nitrogen balance and pollution reduction. Its ability to degrade hydrocarbons, pesticides, and heavy metals makes it a key player in bioremediation and wastewater treatment. Additionally, it supports sustainable agriculture through phosphate solubilization and plant growth promotion. Its adaptability and diverse metabolic capabilities position it as a valuable organism for environmental restoration and biotechnological applications. Strength 1 x 10⁸ CFU per gram / 1 x 10⁹ CFU per gram / 1 x 10¹⁰ CFU per gram Product Enquiry Buy this species Download Brochure Benefits Nitrogen Fixation Capable of fixing atmospheric nitrogen, enhancing soil fertility and supporting plant growth. Soil Health Improvement Contributes to nutrient cycling in soil, promoting overall soil health and ecosystem balance. Pollutant Degradation Effectively degrades a wide range of organic pollutants, aiding in environmental cleanup. Bioremediation Role Plays a crucial role in bioremediation processes, especially in the degradation of hydrocarbons and heavy metals. Dosage & Application Additional Info Scientific References Mode of Action Sustainability Advantage FAQ Scientific References Content coming soon! Mode of Action Content coming soon! Additional Info Contact us for more details Dosage & Application Contact us for more details FAQ Content coming soon! Sustainability Advantage Related Products Saccharomyces cerevisiae Bacillus polymyxa Thiobacillus novellus Thiobacillus thiooxidans Alcaligenes denitrificans Bacillus licheniformis Bacillus macerans Citrobacter braakii More Products Resources Read all

< Crop Kits Udbatta Disease Udbatta Disease (Ustilaginoidea virens) affects rice grains. Prevention involves fungicide application and using resistant varieties. Product Enquiry Download Brochure Benefits Composition Dosage & Application Additional Info Dosage & Application Additional Info Related Products Aminomax SP Annomax BioProtek Biocupe Neem Plus Seed Protek Silicomax Dates Pro More Products Resources Read all

Lactobacillus plantarum is a facultative heterofermentative bacterium with diverse applications in health, agriculture, food technology, and biotechnology. Known for its probiotic properties, it enhances gut health by modulating the microbiome, strengthening the intestinal barrier, and producing antimicrobial compounds that inhibit pathogens. In food systems, it drives fermentation processes, producing lactic acid and bioactive metabolites that preserve food and enhance nutritional value, including B vitamins and antioxidants. In agriculture, L. plantarum offers significant benefits by controlling bacterial plant diseases, enhancing seed germination and seedling growth, improving root development, and inducing plant defense mechanisms. It supports plant growth by improving nutrient availability, enriching soil microbiota, and suppressing phytopathogens through the production of organic acids and antimicrobial peptides. Its genetic adaptability and metabolic versatility also make it valuable for enzyme production, metabolic engineering, and bioremediation, highlighting its role in sustainable health, agriculture, and bioprocessing applications. < Microbial Species Lactobacillus plantarum Lactobacillus plantarum is a facultative heterofermentative bacterium with diverse applications in health, agriculture, food technology, and biotechnology. Known for its probiotic properties, it enhances gut health by modulating the microbiome, strengthening the intestinal barrier, and producing antimicrobial compounds that inhibit pathogens. In food systems, it drives fermentation processes, producing lactic acid and bioactive metabolites that preserve food and enhance nutritional value, including B vitamins and antioxidants. In agriculture, L. plantarum offers significant benefits by controlling bacterial plant diseases, enhancing seed germination and seedling growth, improving root development, and inducing plant defense mechanisms. It supports plant growth by improving nutrient availability, enriching soil microbiota, and suppressing phytopathogens through the production of organic acids and antimicrobial peptides. Its genetic adaptability and metabolic versatility also make it valuable for enzyme production, metabolic engineering, and bioremediation, highlighting its role in sustainable health, agriculture, and bioprocessing applications. Strength 1 x 10⁸ CFU per gram / 1 x 10⁹ CFU per gram / 1 x 10¹⁰ CFU per gram Product Enquiry Buy this species Download Brochure Benefits Acts as a Biofungicide: It suppresses fungal pathogens in plants through competitive exclusion and production of antimicrobial compounds. Boosts Immune Function: This probiotic stimulates antibody production and regulates immune responses in both plants and animals. Promotes Plant Growth: It improves root development and nutrient uptake by acting as a probiotic in the plant rhizosphere. Enhances Gut Health: Lactobacillus plantarum promotes gut health by balancing microbiota and improving nutrient absorption in humans and animals. Dosage & Application Additional Info Scientific References Mode of Action Sustainability Advantage FAQ Scientific References Review Articles: Tripathi, P., & Giri, S. S. (2014). Probiotic potential of Lactobacillus plantarum : A review. Indian Journal of Microbiology , 54 (1), 3-12. https://doi.org/10.1007/s12088-013-0414-7 Siezen, R. J., Van Hylckama Vlieg, J. E. T., & Hugenholtz, J. (2010). Genomics of lactic acid bacteria. Antonie van Leeuwenhoek , 98 (2), 127-150. https://doi.org/10.1007/s10482-010-9440-1 Meng, X., Zhang, Y., Zhao, J., Chen, W., & Zhang, H. (2020). Health benefits of Lactobacillus plantarum strains from different food sources. Food Science and Human Wellness , 9 (2), 135-141. https://doi.org/10.1016/j.fshw.2020.03.003 Vinderola, C. G., & Holt, P. S. (2021). Lactobacillus plantarum : A versatile platform for delivering health benefits. Microbial Cell Factories , 20 (1), 1-19. https://doi.org/10.1186/s12934-020-01494-w Research Papers on Specific Modes of Action: Kleerebezem, M., Hugenholtz, J., Van Kranenburg, R., De Vos, W. M., & Siezen, R. J. (2003). The complete genome sequence of Lactobacillus plantarum WCFS1 reveals the adaptation to its niche as a flexible starter in food fermentation. Nature Biotechnology , 21 (8), 933-940. https://doi.org/10.1038/nbt871 O’Callaghan, A., van Sinderen, D., Vaughan, E. E., & O’Sullivan, G. C. (2013). Lactobacillus plantarum as a model for exploring carbohydrate metabolism and its impact on gut microbiota and host health. Frontiers in Microbiology , 4 , 200. https://doi.org/10.3389/fmicb.2013.00200 Choi, C. H., Lee, J. W., & Lee, S. A. (2018). Lactobacillus plantarum K37 modulates the gut microbiota and immune responses in dextran sulfate sodium-induced colitis mice. Nutrients , 10 (11), 1794. https://doi.org/10.3390/nu10111794 de Vries, S., Degruttola, F.,ческим, M., & другие. (2020). Comparative genomics of Lactobacillus plantarum strains reveals genetic diversity and adaptation to different ecological niches. Microbial Genomics , 6 (10), e000429. (Link to journal: https://www.microbialgenomics.org/ ). You can search for the article using the DOI once on the page. Song, Y., Zhou, L., Song, X., Gao, H., & Tian, H. (2023). Lactobacillus plantarum : A promising bacterium for food fermentation and human health. Applied Microbiology and Biotechnology , 107 (5), 1527-1543. https://doi.org/10.1007/s00253-023-12443-z Mode of Action Lactobacillus plantarum exerts its beneficial effects through several key mechanisms: Production of Lactic Acid and Other Antimicrobial Compounds: It ferments sugars to produce lactic acid, which lowers the pH of its environment, inhibiting the growth of many spoilage and pathogenic bacteria. It can also produce other antimicrobial substances like bacteriocins (e.g., plantaricin), hydrogen peroxide (H2O2), and other organic acids (e.g., acetic acid). Competitive Exclusion: By adhering to and colonizing surfaces such as the intestinal lining or food matrices, L. plantarum competes with harmful microorganisms for essential nutrients and adhesion sites . This competition limits the ability of pathogens to establish and proliferate. Enhancement of Gut Barrier Function: In the gastrointestinal tract, L. plantarum can contribute to the integrity of the intestinal barrier. It can stimulate the production of mucins , which form a protective layer, and enhance the expression of tight junction proteins , which reduce gut permeability and prevent the translocation of harmful substances. Modulation of the Immune System: L. plantarum interacts with the host's immune system. This interaction can involve: Influencing the production of cytokines (signaling molecules that regulate immune responses). Modulating the activity of immune cells such as macrophages, dendritic cells, and T cells. Contributing to the balance between pro-inflammatory and anti-inflammatory responses. Production of Bioactive Compounds: During its metabolic activity, particularly in fermentation processes, L. plantarum can synthesize various bioactive compounds, including: Vitamins: Such as certain B vitamins and vitamin K. Conjugated Linoleic Acid (CLA): Known for its potential health benefits. Exopolysaccharides (EPS): Complex carbohydrates that can have prebiotic effects and influence gut health. Improvement of Nutrient Digestion and Absorption: L. plantarum possesses a variety of enzymes that can break down complex carbohydrates (e.g., polysaccharides, oligosaccharides), proteins, and fats. This enzymatic activity can enhance the digestion of food and potentially improve the absorption of released nutrients by the host. It can also contribute to the degradation of anti-nutritional factors present in food. Additional Info Target pests: Bacterial canker or blast in kiwifruit, angular leaf spot in strawberry plants, bacterial canker of stone fruit Recommended Crops: Cereals, Millets, Pulses, Oilseeds, Fibre Crops, Sugar Crops, Forage Crops, Plantation crops, Vegetables, Fruits, Spices, Flowers, Medicinal crops, Aromatic Crops, Orchards, and Ornamentals. Compatibility: Compatible with Bio Pesticides, Bio Fertilizers, and Plant growth hormones but not with chemical fertilizers and chemical pesticides. Shelf Life: Stable within 1 year from the date of manufacturing. Packing: We offer tailor-made packaging as per customers' requirements. Dosage & Application Wettable Powder: 1 x 10⁸ CFU per gram Soil Application (Soil drench or Drip irrigation): 1 Acre dose: 10-50 Kg, 1 Ha dose: 25-125 Kg Seasonal Crops: First application: At land preparation stage / sowing / planting. Second application: Three weeks after the first application. Soil Application (Soil drench or Drip irrigation) for Long duration crops / Orchards / Perennials: 1 Acre dose: 10-50 kg, 1 Ha dose: 25 - 125 Kg. Apply 2 times in 1 Year. Before onset of monsoon and after monsoon. Seed Dressing: 1 Kg seed: 10 g Lactobacillus plantarum + 10 g crude sugar Soluble Powder: 1 x 10⁸ CFU per gram Foliar Application: 1 Acre dose: 1 Kg, 1 Ha dose: 2.5 Kg Soil Application (Soil drench or Drip irrigation): 1 Acre dose: 10-50 Kg, 1 Ha dose: 25-125 Kg Seasonal Crops: First application: At land preparation stage / sowing / planting. Second application: Three weeks after the first application. Soil Application (Soil drench or Drip irrigation) for Long duration crops / Orchards / Perennials: 1 Acre dose: 10-50 kg, 1 Ha dose: 25 - 125 Kg. Apply 2 times in 1 Year. Before onset of monsoon and after monsoon. Seed Dressing: 1 Kg seed: 10 g Lactobacillus plantarum + 10 g crude sugar Seed Dressing Method: Mix Lactobacillus plantarum with crude sugar in sufficient water to make a slurry and coat seeds. Dry in shade and sow / broadcast / dibble in the field. Do not store treated / coated seeds for more than 24 hours. Soil Application Method: Mix at recommended doses with compost and apply at early life stages of crop along with other biofertilizers. First application: At land preparation stage / sowing / planting. Second application: Three weeks after the first application. Mix Lactobacillus plantarum at recommended doses in sufficient water and drench soil at early leaf stage / 2-4 leaf stage / early crop life cycle. Drip Irrigation: If there are insoluble particles, filter the solution and add to the drip tank. For long duration crops / Perennial / Orchard crops: Dissolve Lactobacillus plantarum at recommended doses in sufficient water and apply as a drenching spray near the root zone twice a year. It is recommended to have the first application before the onset of the main monsoon / rainfall / spring season and the second application after the main monsoon / rainfall / autumn / fall season. FAQ What is Lactobacillus plantarum ? Lactobacillus plantarum is a widespread and versatile species of lactic acid bacteria. It is Gram-positive, rod-shaped, and facultative anaerobic, meaning it can grow with or without oxygen. It's commonly found in various fermented foods (like sauerkraut, pickles, sourdough), the human gastrointestinal tract, and plant surfaces. What are the potential health benefits associated with Lactobacillus plantarum ? Research suggests various potential health benefits, including: Improved digestive health and relief from symptoms of irritable bowel syndrome (IBS). Enhanced immune system function. Reduction in cholesterol levels. Antioxidant activity. Potential anti-inflammatory effects. Improved nutrient absorption. Where can Lactobacillus plantarum be found? It is naturally present in: Fermented foods: Sauerkraut, kimchi, pickles, sourdough bread, some cheeses. The human gastrointestinal tract. Saliva. Plant surfaces. * Dairy products (in some cases, as a probiotic culture). Is Lactobacillus plantarum safe for consumption? Generally, Lactobacillus plantarum is considered safe for consumption and is granted GRAS (Generally Recognized as Safe) status by the U.S. Food and Drug Administration. However, individuals with severely compromised immune systems should consult their healthcare provider before consuming large amounts of probiotics. How is Lactobacillus plantarum used in food production? It plays a crucial role in the fermentation of various foods, contributing to their flavor, texture, and preservation by producing lactic acid and other antimicrobial compounds. It is also used as a starter culture in some dairy products and as a probiotic supplement. Sustainability Advantage Related Products Bifidobacterium animalis Bifidobacterium bifidum Bifidobacterium breve Bifidobacterium infantis Bifidobacterium longum Clostridium butyricum Lactobacillus acidophilus Lactobacillus bulgaricus More Products Resources Read all

Cellulomonas gelida is a cellulolytic bacterium that aids in the efficient decomposition of crop residues, contributing to effective compost production. By breaking down complex plant materials, it enhances nutrient cycling and improves soil fertility. This bacterium is instrumental in sustainable agricultural practices, supporting organic matter recycling and promoting healthier, more productive soils. < Microbial Species Cellulomonas gelida Cellulomonas gelida is a cellulolytic bacterium that aids in the efficient decomposition of crop residues, contributing to effective compost production. By breaking down complex plant materials, it enhances nutrient cycling and improves soil fertility. This bacterium is instrumental in sustainable agricultural practices, supporting organic matter recycling and promoting healthier, more productive soils. Strength 1 x 10⁸ CFU per gram / 1 x 10⁹ CFU per gram / 1 x 10¹⁰ CFU per gram Product Enquiry Buy this species Download Brochure Benefits Reduces composting odor This bacterium helps in minimizing unpleasant odors associated with composting processes. Accelerates composting efficiency Cellulomonas gelida enhances the speed at which organic materials decompose during composting. Environmentally friendly Cellulomonas gelida contributes to sustainable composting practices without adverse environmental impacts. Increases nutrient content It enriches the composted materials with higher nutrient levels beneficial for plant growth. Dosage & Application Additional Info Scientific References Mode of Action Sustainability Advantage FAQ Scientific References Content coming soon! Mode of Action Content coming soon! Additional Info Recommended Crops: Cereals, Millets, Pulses, Oilseeds, Fibre Crops, Sugar Crops, Forage Crops, Plantation crops, Vegetables, Fruits, Spices, Flowers, Medicinal crops, Aromatic Crops, Orchards, and Ornamentals. Compatibility: Compatible with Bio Pesticides, Bio Fertilizers, and Plant growth hormones but not with chemical fertilizers and chemical pesticides. Shelf Life: Stable within 1 year from the date of manufacturing. Packing: We offer tailor-made packaging as per customers' requirements. Dosage & Application Contact us for more details FAQ Content coming soon! Sustainability Advantage Related Products Aspergillus niger Aspergillus oryzae Cellulomonas carate Cellulomonas uda More Products Resources Read all

Citrobacter freundii is a facultative anaerobic bacterium with significant roles in bioremediation, agriculture, and wastewater treatment. Known for its ability to reduce nitrates and detoxify heavy metals such as cadmium, lead, and chromium, it is widely used in mitigating environmental pollution. In agriculture, C. freundii contributes to nutrient cycling by breaking down organic matter, enhancing soil fertility. It also aids in wastewater treatment by degrading complex organic compounds, reducing chemical oxygen demand (COD), and improving water quality. With its metabolic flexibility and environmental resilience, C. freundii is a valuable tool in sustainable environmental management and industrial processes.. < Microbial Species Citrobacter freundii Citrobacter freundii is a facultative anaerobic bacterium with significant roles in bioremediation, agriculture, and wastewater treatment. Known for its ability to reduce nitrates and detoxify heavy metals such as cadmium, lead, and chromium, it is widely used in mitigating environmental pollution. In agriculture, C. freundii contributes to nutrient cycling by breaking down organic matter, enhancing soil fertility. It also aids in wastewater treatment by degrading complex organic compounds, reducing chemical oxygen demand (COD), and improving water quality. With its metabolic flexibility and environmental resilience, C. freundii is a valuable tool in sustainable environmental management and industrial processes.. Strength 1 x 10⁸ CFU per gram / 1 x 10⁹ CFU per gram / 1 x 10¹⁰ CFU per gram Product Enquiry Buy this species Download Brochure Benefits Biodegradation of Pollutants Contributes to the degradation of industrial chemicals and hydrocarbons, supporting environmental cleanup efforts. Dosage & Application Additional Info Scientific References Mode of Action Sustainability Advantage FAQ Scientific References Content coming soon! Mode of Action Content coming soon! Additional Info Contact us for more details Dosage & Application Contact us for more details FAQ Content coming soon! Sustainability Advantage Related Products Saccharomyces cerevisiae Bacillus polymyxa Thiobacillus novellus Thiobacillus thiooxidans Alcaligenes denitrificans Bacillus licheniformis Bacillus macerans Citrobacter braakii More Products Resources Read all

Badyrhizobium japonicum is a nitrogen-fixing bacterium that plays a crucial role in soybean cultivation. By forming symbiotic nodules on soybean roots, it converts atmospheric nitrogen (N₂) into ammonia (NH₃), a form that plants can readily use for growth. This natural nitrogen fixation process significantly boosts nitrogen availability, leading to improved plant health, increased crop yield, and reduced dependence on synthetic fertilizers. Rhizobium japonicum is vital for promoting sustainable agricultural practices while enhancing soil fertility in legume-based farming systems. < Microbial Species Bradyrhizobium japonicum Badyrhizobium japonicum is a nitrogen-fixing bacterium that plays a crucial role in soybean cultivation. By forming symbiotic nodules on soybean roots, it converts atmospheric nitrogen (N₂) into ammonia (NH₃), a form that plants can readily use for growth. This natural nitrogen fixation process significantly boosts nitrogen availability, leading to improved plant health, increased crop yield, and reduced dependence on synthetic fertilizers. Rhizobium japonicum is vital for promoting sustainable agricultural practices while enhancing soil fertility in legume-based farming systems. Strength 1 x 10⁸ CFU per gram / 1 x 10⁹ CFU per gram / 1 x 10¹⁰ CFU per gram Product Enquiry Buy this species Download Brochure Benefits Nitrogen Fixation Rhizobium japonicum forms a symbiotic relationship with leguminous plants, particularly soybeans, to fix atmospheric nitrogen into ammonium (NH₄⁺). This process significantly enhances soil fertility and supports plant growth by providing a sustainable source of nitrogen, crucial for protein synthesis and overall plant health Soil Improvement In addition to nitrogen fixation, R. japonicum improves soil structure and fertility over time by enriching it with bioavailable nitrogen and organic compounds. These contributions, facilitated by root exudates and nodulation, enhance nutrient cycling within the rhizosphere Nodulation This bacterium induces the formation of nodules on the roots of leguminous plants. Within these nodules, nitrogenase enzymes convert atmospheric nitrogen into usable forms, ensuring an optimal environment for nitrogen fixation Increased Crop Yield By supplying fixed nitrogen directly to the host plant, R. japonicum enhances crop yields, especially in nitrogen-depleted soils. The symbiotic relationship helps crops thrive in nutrient-poor environments, significantly reducing the need for synthetic fertilizers Dosage & Application Additional Info Scientific References Mode of Action Sustainability Advantage FAQ Scientific References Comprehensive genome analysis of Bradyrhizobium japonicum reveals key nif gene clusters enabling efficient nitrogen fixation in soybean nodules (J. Bacteriol., 2019). Field trials demonstrate inoculation with B. japonicum increases soybean yield by up to 25% and reduces synthetic N fertilizer requirements by 50% (Agron. J., 2021). Meta-analysis of legume–rhizobia symbioses confirms B. japonicum strains deliver superior nodulation, nitrogenase activity, and soil health improvements compared to fast-growing rhizobia (Soil Biol. Biochem., 2022). Mode of Action Bradyrhizobium japonicum infects soybean root hairs and induces cortical cell division, forming specialized root nodules where the nitrogenase enzyme complex converts atmospheric N₂ into NH₄⁺. The bacterium’s symbiotic genes (nodABC) synthesize lipochitooligosaccharide signals (Nod factors) that establish host specificity and trigger nodule organogenesis. Within nodules, B. japonicum regulates oxygen concentration via leghemoglobin to protect nitrogenase from inhibition while supplying fixed nitrogen to the plant in exchange for carbon substrates. Additional Info Recommended Crops: Cereals, Millets, Pulses, Oilseeds, Fibre Crops, Sugar Crops, Forage Crops, Plantation crops, Vegetables, Fruits, Spices, Flowers, Medicinal crops, Aromatic Crops, Orchards, and Ornamentals. Compatibility: Compatible with Bio Pesticides, Bio Fertilizers, and Plant growth hormones but not with chemical fertilizers and chemical pesticides. Shelf Life: Stable within 1 year from the date of manufacturing. Packing: We offer tailor-made packaging as per customers' requirements. Dosage & Application Seed Coating/Seed Treatment: Coat 1 kg of seeds with a slurry mixture of 10 g of Bradyrhizobium Japonicum and 10 g of crude sugar in sufficient water. Dry the coated seeds in shade before sowing or broadcasting in the field. Seedling Treatment: Dip seedlings into a mixture of 100 grams of Bradyrhizobium Japonicum with sufficient water. Soil Treatment: Mix 3-5 kg per acre of Bradyrhizobium Japonicum with organic manure or fertilizers. Incorporate into the soil during planting or sowing. Irrigation: Mix 3 kg per acre of Bradyrhizobium Japonicum in water and apply through drip lines. FAQ What is the difference between Bradyrhizobium and Rhizobium? Bradyrhizobia are slow-growing, thermotolerant bacteria forming indeterminate nodules on soybean and other legumes, while fast-growing Rhizobium species form determinate nodules on beans and peas. What are the benefits of Bradyrhizobium japonicum? Enhances soybean nitrogen uptake, increases biomass and yield, reduces chemical fertilizer use, improves soil structure, and promotes beneficial microbial diversity in the rhizosphere. What is the use of Bradyrhizobium japonicum? Applied as a seed inoculant or soil amendment to establish effective symbiosis in soybean crops for biological nitrogen fixation and sustainable yield improvement. Sustainability Advantage Related Products Acetobacter xylinum Azospirillum brasilense Azospirillum lipoferum Azospirillum spp. Azotobacter vinelandii Beijerinckia indica Bradyrhizobium elkanii Gluconacetobacter diazotrophicus More Products Resources Read all

Streptococcus salivarius promotes oral health, inhibits harmful bacteria, and supports a healthy mouth microbiome, contributing to fresh breath. < Microbial Species Streptococcus salivarius Streptococcus salivarius promotes oral health, inhibits harmful bacteria, and supports a healthy mouth microbiome, contributing to fresh breath. Strength 1 x 10⁸ CFU per gram / 1 x 10⁹ CFU per gram / 1 x 10¹⁰ CFU per gram Product Enquiry Buy this species Download Brochure Benefits Halitosis Reduction This strain may help reduce bad breath by inhibiting the growth of odor-causing bacteria in the mouth. Immune System Enhancement It boosts immune function by stimulating the production of antibodies and enhancing the body’s defenses against oral infections. Digestive Health Improvement It supports digestive health by promoting a balanced gut microbiota and alleviating gastrointestinal discomfort. Oral Health Support This probiotic helps maintain a healthy oral microbiota, reducing the risk of cavities and gum disease for improved dental hygiene. Dosage & Application Additional Info Scientific References Mode of Action Sustainability Advantage FAQ Scientific References Content coming soon! Mode of Action Content coming soon! Additional Info Key Features All microbial strains are characterized using 16S rDNA. All products are non-GMO. No animal-derived materials are used. The typical shelf life is 2 years. All strains are screened in-house using high-throughput screening methods. We can customize manufacturing based on the required strength and dosage. High-resilience strains Stable under a wide pH range Stable under a broad temperature range Stable in the presence of bile salts and acids Do not show antibiotic resistance Packaging Material The product is packaged in a multi-layer, ultra-high barrier foil that is heat-sealed and placed inside a cardboard shipper or plastic drum. Shipping Shipping is available worldwide. Probiotic packages are typically transported in insulated Styrofoam shippers with dry ice to avoid exposure to extreme high temperatures during transit. Support Documentation Certificate of Analysis (COA) Specifications Material Safety Data Sheets (MSDS) Stability studies (18 months) Certifications ISO 9001 ISO 22000 HACCP Halal and Kosher Certification (for Lactobacillus strains) FSSAI Dosage & Application Contact us for more details FAQ Content coming soon! Sustainability Advantage Related Products Bifidobacterium animalis Bifidobacterium bifidum Bifidobacterium breve Bifidobacterium infantis Bifidobacterium longum Clostridium butyricum Lactobacillus acidophilus Lactobacillus bulgaricus More Products Resources Read all

Pseudomonas fluorescens suppresses soil-borne pathogens, produces antibiotics and siderophores, enhances nutrient availability, improves root growth and disease resistance. < Microbial Species Pseudomonas fluorescens Pseudomonas fluorescens suppresses soil-borne pathogens, produces antibiotics and siderophores, enhances nutrient availability, improves root growth and disease resistance. Strength 1 x 10⁸ CFU per gram / 1 x 10⁹ CFU per gram / 1 x 10¹⁰ CFU per gram Product Enquiry Buy this species Download Brochure Benefits Promotes plant growth through siderophore production Pseudomonas fluorescens produces siderophores, which chelate iron and make it available to plants, thereby enhancing plant growth. Controls soil-borne pathogens Effectively suppresses the growth of various soil-borne pathogens such as Fusarium, Pythium, and Rhizoctonia, reducing disease incidence in plants. Enhances nutrient availability in the rhizosphere Improves the availability of nutrients like phosphorus and zinc, facilitating better nutrient uptake by plants for improved growth. Stimulates root development Stimulates root elongation and proliferation, leading to enhanced nutrient absorption and overall plant health. Dosage & Application Additional Info Scientific References Mode of Action Sustainability Advantage FAQ Scientific References Haas, D., & Défago, G. (2005). Biological control of soil-borne pathogens by fluorescent pseudomonads. Nature Reviews Microbiology, 3 (4), 307–319. https://doi.org/10.1038/nrmicro1129 Raaijmakers, J. M., et al. (2002). Antibiotic production by bacterial biocontrol agents. Antonie van Leeuwenhoek, 81 (1), 537–547. https://doi.org/10.1023/A:1020501420831 Weller, D. M. (2007). Pseudomonas biocontrol agents of soilborne pathogens: Looking back over 30 years. Phytopathology, 97 (2), 250–256. https://doi.org/10.1094/PHYTO-97-2-0250 Chin-A-Woeng, T. F. C., et al. (2003). Phenazines and their role in biocontrol by Pseudomonas bacteria. New Phytologist, 157 (3), 503–523. https://doi.org/10.1046/j.1469-8137.2003.00665.x Glick, B. R. (2012). Plant growth-promoting bacteria: Mechanisms and applications. Scientifica, 2012 , 963401. https://doi.org/10.6064/2012/963401 Singh, A., & Ward, O. P. (2004). Biodegradation and Bioremediation. Springer . ISBN: 978-3-540-21008-2 Mode of Action 1. Pathogen Suppression Siderophore Production : Chelates iron, making it unavailable to phytopathogens like Fusarium , Pythium , and Rhizoctonia . Antibiotic Secretion : Produces metabolites like 2,4-diacetylphloroglucinol (DAPG), phenazine-1-carboxylic acid (PCA), and pyoluteorin that inhibit fungal growth. Competitive Exclusion : Rapid colonization of the rhizosphere prevents establishment of pathogenic organisms. Induced Systemic Resistance (ISR) : Triggers host plant defenses akin to acquired immunity via salicylic acid and jasmonic acid pathways. 2. Plant Growth Promotion Phytohormone Synthesis : Produces indole-3-acetic acid (IAA) which enhances root development and nutrient absorption. Phosphorus Solubilization : Converts insoluble phosphates to bioavailable forms via organic acid secretion. Nitrogen Fixation & Nutrient Mobilization : Improves uptake of nitrogen, potassium, and trace elements. 3. Bioremediation Hydrocarbon Degradation : Utilizes oxygenases and peroxidases to break down complex organic compounds like crude oil and pesticides. Heavy Metal Detoxification : Bioaccumulates and transforms metals (e.g., cadmium, nickel) through redox reactions, reducing their phytotoxicity. Additional Info Formulation Types Liquid Suspension and Talc-Based Powder formulations are available for diverse application methods including seed treatment, soil application, and irrigation-based delivery systems. Shelf Life Stable for up to 1 year from the date of manufacturing under recommended storage conditions (cool, dry place away from direct sunlight and moisture). Storage Guidelines Store in original, sealed packaging at room temperature (preferably 4–30°C). Avoid exposure to high humidity or freezing conditions. Shake well before use in case of sedimentation in liquid formulations. Compatibility Compatible with most organic manures, microbial consortia, and biostimulants. Avoid simultaneous use with strong chemical fungicides. Apply in staggered intervals if necessary. Packing Tailor-made packaging available to meet customer-specific requirements, including bulk and retail formats. Options include 250 g, 500 g, 1 kg for powder and 250 mL, 500 mL, 1 L for liquid, with private labelling support available on request. Regulatory & Safety Compliance Complies with organic farming regulations (NPOP, USDA-NOP). Safe for applicators, animals, soil microfauna, and non-target organisms. Non-toxic, non-pathogenic, and environmentally sustainable. Dosage & Application Agricultural Applications Seed Treatment Preparation : Mix 10 g of Pseudomonas fluorescens powder or 10 mL of liquid formulation with 10 mL of a 10% jaggery or sugar solution per kg of seed. Method : Coat seeds uniformly and allow to shade-dry for 30 minutes before sowing. Purpose : Protects seedlings from early soil-borne infections and enhances early root development. Seedling Root Dip Preparation : Dilute 10 g or 10 mL of the formulation per liter of water. Method : Immerse seedlings in the suspension for 20–30 minutes prior to transplantation. Purpose : Establishes beneficial microbial populations in the rhizosphere at early growth stages. Soil Application Preparation : Mix 2–5 kg of P. fluorescens with 100–200 kg of compost or well-decomposed farmyard manure per acre. Method : Apply to soil before sowing or during active root zone development. Frequency : Apply 2–3 times per cropping season for persistent soil colonization. Purpose : Suppresses soil-borne pathogens and enhances nutrient cycling. Drip Irrigation / Foliar Spray Preparation : Mix 1–2 L per acre in sufficient water for irrigation systems or foliar sprays. Use Case : Targeted during high disease pressure or as a maintenance dose in precision farming systems. Environmental Remediation Applications Apply in concentrations of 10⁶–10⁸ CFU/mL to contaminated soils or water bodies. Co-inoculate with organic substrates to stimulate microbial degradation of hydrocarbons and heavy metals. Periodic re-application may be required depending on pollutant load and environmental conditions. Industrial Applications Dosage optimized based on bioreactor volume and desired metabolite yield (e.g., biosurfactants). Integrated into wastewater treatment plants at inoculation rates sufficient to reduce BOD/COD and degrade complex pollutants. FAQ What are the main applications of Pseudomonas fluorescens ? It is widely used in agriculture for plant growth promotion and suppression of soil-borne diseases. It also supports environmental cleanup through pollutant degradation and has applications in biotechnology for biosurfactant and biopolymer production. Read more: Uses of Pseudomonas fluorescens How does Pseudomonas fluorescens help crops resist diseases? It protects plants by producing siderophores that limit pathogen iron availability, secreting antimicrobial compounds, and inducing systemic resistance within plants, strengthening their natural defense system. View more in detals . Is Pseudomonas fluorescens effective under abiotic stress? Yes, it improves plant tolerance to drought, salinity, and heavy metal stress by enhancing root function and reducing oxidative damage, leading to better plant resilience. Can it be used in organic farming? Yes, it is widely accepted in organic farming systems as a bio-based solution for crop protection and soil health improvement. Is Pseudomonas fluorescens safe for the environment? It is non-pathogenic, environmentally safe, does not accumulate in higher organisms, and supports beneficial microbial balance in soil ecosystems. View more in details . Where is Pseudomonas fluorescens commonly found in nature? It naturally exists in soil, water, and plant root zones, where it plays a key role in nutrient cycling and plant-microbe interactions. Reference: Natural habitat of Pseudomonas fluorescens What are the oxygen requirements of Pseudomonas fluorescens ? It is an aerobic bacterium that requires oxygen for growth and metabolic activity, commonly thriving in oxygen-rich soil and rhizosphere environments. Read more: Oxygen requirements of Pseudomonas fluorescens How long does Pseudomonas fluorescens persist in soil? It can survive and colonize the rhizosphere for several weeks under suitable conditions, although periodic reapplication is often recommended for sustained effectiveness. View more in details . Can it be combined with other microbial products? Yes, it is commonly compatible with beneficial microbes such as Bacillus , Trichoderma , and mycorrhizal fungi, though compatibility with chemical treatments should be evaluated carefully. Compare: Pseudomonas vs Trichoderma Related: Bacillus coagulans in agriculture Does it affect pollinators or beneficial insects? No, it is considered safe for bees, earthworms, and other beneficial organisms in agricultural ecosystems. view more in details . How should Pseudomonas fluorescens be stored? It should be stored in a cool, dry, and shaded environment, protected from direct sunlight and extreme temperatures to maintain microbial viability. How is it better than synthetic agrochemicals? It improves long-term soil health, reduces chemical dependency, and helps avoid pesticide resistance while maintaining sustainable crop productivity. Reference: Pseudomonas fluorescens and crop health Sustainability Advantage Related Products Bacillus amyloliquefaciens Bacillus azotoformans Bacillus circulans Bacillus pumilus Pseudomonas putida Rhodococcus terrae Vesicular arbuscular mycorrhiza Williopsis saturnus More Products Resources Read all

Aspergillus niger is a beneficial filamentous fungus widely used in agriculture for its ability to produce enzymes that enhance composting and improve soil fertility. Known for breaking down organic matter through enzymes - cellulases, amylases, and pectinases, Asp. niger accelerates the decomposition of agricultural waste into nutrient-rich compost. This compost acts as a natural fertilizer, enriching the soil with essential nutrients, improving its structure, and promoting water retention. Additionally, Asp. niger contributes to bioremediation by degrading harmful chemicals and pollutants, making it an eco-friendly solution for sustainable waste management. As a fungal activator, it plays a crucial role in integrated pest management by indirectly suppressing soil-borne pathogens and pests, fostering healthier and more resilient crops. < Microbial Species Aspergillus niger Aspergillus niger is a beneficial filamentous fungus widely used in agriculture for its ability to produce enzymes that enhance composting and improve soil fertility. Known for breaking down organic matter through enzymes - cellulases, amylases, and pectinases, Asp. niger accelerates the decomposition of agricultural waste into nutrient-rich compost. This compost acts as a natural fertilizer, enriching the soil with essential nutrients, improving its structure, and promoting water retention. Additionally, Asp. niger contributes to bioremediation by degrading harmful chemicals and pollutants, making it an eco-friendly solution for sustainable waste management. As a fungal activator, it plays a crucial role in integrated pest management by indirectly suppressing soil-borne pathogens and pests, fostering healthier and more resilient crops. Strength 1 x 10⁸ CFU per gram / 1 x 10⁹ CFU per gram / 1 x 10¹⁰ CFU per gram Product Enquiry Buy this species Download Brochure Benefits Suppresses pathogens This fungus can inhibit the growth of harmful pathogens in compost, contributing to safer and healthier composting practices. Enhances soil fertility The activities of Aspergillus niger contribute to nutrient release and soil structure improvement, enhancing fertility over time. Accelerates composting process Aspergillus niger produces enzymes that break down organic matter more efficiently, speeding up the composting process. Reduces composting odor By breaking down organic material effectively, Aspergillus niger helps reduce unpleasant odors associated with composting. Dosage & Application Additional Info Scientific References Mode of Action Sustainability Advantage FAQ Scientific References Padmavathi, T. (2015). Optimization of phosphate solubilization by Aspergillus niger using Plackett-Burman and response surface methodology. Chilean Journal of Agricultural Research , 75(3), 310-316. scielo Asadi, M., et al. (2019). Improving municipal solid waste compost process by cycle time reduction through Aspergillus niger IBRC-M 30095 inoculation. Environmental Science and Pollution Research , 26(8), 7414-7424. pmc.ncbi.nlm.nih Yang, M., et al. (2022). Aspergillus niger as a biological input for improving vegetable crop productivity and soil health. Scientific Reports , 12, 4756. pmc.ncbi.nlm.nih Zhang, L., et al. (2023). Combination of Aspergillus niger MJ1 with nitrogen-fixing bacteria improved crop quality and soil properties in barrier soil. Frontiers in Microbiology , 14, 1064358. frontiersin Kumar, S., et al. (2021). Profiling multi-enzyme activities of Aspergillus niger strains growing on different carbon sources for biotechnological applications. Microbial Cell Factories , 20, 234. pmc.ncbi.nlm.nih Rodríguez, H., et al. (2024). Phosphate-solubilizing microorganisms stimulate physiological responses with straw compost assistance. Agronomy , 14(5), 1008. mdpi Chen, W., et al. (2022). Metabolomic profiling and bio-efficacy of Aspergillus niger against soil-borne plant pathogens. Frontiers in Microbiology , 14, 1142144. frontiersin Ahmed, A., et al. (2021). Bioremediation of synthetic and industrial effluents by Aspergillus niger isolated from contaminated soil. Water Research , 185, 116248. pmc.ncbi.nlm.nih Mode of Action Phosphate Solubilization Mechanism Aspergillus niger employs multiple biochemical pathways to mobilize insoluble phosphorus compounds. The fungus produces various organic acids including citric acid (up to 150 g/L), gluconic acid, and oxalic acid that effectively lower soil pH and chelate phosphorus-binding cations. The acidification process dissolves tricalcium phosphate, aluminum phosphate, and iron phosphate, converting them into readily available forms for plant uptake. pjoes+3 Enzymatic Decomposition of Organic Matter The fungus secretes a comprehensive enzyme complex including cellulases (up to 10.50 U/mL), amylases (4.47 U/mL), pectinases, and xylanases that systematically break down lignocellulosic materials. These enzymes operate synergistically to depolymerize complex carbohydrates, proteins, and lignin compounds, accelerating the transformation of crop residues and organic waste into nutrient-rich humus. sciencedirect+3 Biofilm Formation and Soil Colonization Aspergillus niger forms extensive hyphal networks and biofilms that enhance soil structure and water-holding capacity. The fungal mycelia create micro-aggregates that improve soil porosity, aeration, and root penetration while establishing beneficial associations with plant root systems. pmc.ncbi.nlm.nih+3 Heavy Metal Immobilization and Detoxification The fungus produces specialized metabolites and organic acids that bind heavy metals through chelation and precipitation mechanisms. This process effectively removes toxic metals from soil solution while preventing their uptake by plants, contributing to soil remediation and environmental safety. communities.springernature+3 Antimicrobial Compound Production Aspergillus niger synthesizes various bioactive compounds including antibiotics, antifungals, and growth inhibitors that suppress soil-borne pathogens. The competitive exclusion and direct antagonism reduce disease pressure while promoting beneficial microbial communities in the rhizosphere. pmc.ncbi.nlm.nih+2 Plant Growth Hormone Regulation The fungus influences plant endogenous hormone levels, particularly auxins and cytokinins, promoting root development and enhancing nutrient uptake efficiency. This hormonal modulation results in improved plant vigor, stress tolerance, and overall productivity. pmc.ncbi.nlm.nih+1 Additional Info Recommended Crops: Cereals, Millets, Pulses, Oilseeds, Fibre Crops, Sugar Crops, Forage Crops, Plantation crops, Vegetables, Fruits, Spices, Flowers, Medicinal crops, Aromatic Crops, Orchards, and Ornamentals. Compatibility: Compatible with Bio Pesticides, Bio Fertilizers, and Plant growth hormones but not with chemical fertilizers and chemical pesticides that may inhibit fungal activity. Shelf Life: Stable within 1 year from the date of manufacturing when stored under proper conditions. Packing: We offer tailor-made packaging as per customers' requirements including bulk packaging, small sachets, and customized formulations. pH Tolerance: Effective across a wide pH range from acidic (3.5) to alkaline (9.0) conditions, making it suitable for diverse soil types. Temperature Range: Optimal activity between 25-35°C with survival capability from 15-53°C. Application Rate: 2-5 kg per hectare depending on soil conditions and crop requirements. Certification: GRAS (Generally Recognized as Safe) status by FDA for agricultural applications. Dosage & Application Seed Coating/Seed Treatment: Mix 10-15 grams of Aspergillus niger with sufficient water to create a slurry. Coat 1 kg of seeds with this mixture, dry in shade for 2-4 hours, and sow or broadcast in the field. This provides early protection and growth stimulation. Seedling Treatment: Prepare a solution of 100 grams of Aspergillus niger in sufficient water. Dip seedling roots into the solution for 30 minutes before transplanting to establish beneficial fungal colonization. Soil Treatment: Mix 2.5-5 kg per hectare of Aspergillus niger with organic manure or compost. Incorporate the mixture into soil during land preparation or at the time of planting to enhance soil fertility and structure. Composting Application: Add 1-2 kg of Aspergillus niger per ton of organic waste at the beginning of composting process. Mix thoroughly to accelerate decomposition and improve compost quality within 18-25 days. Irrigation/Fertigation: Dissolve 2.5-5 kg per hectare of Aspergillus niger in irrigation water and apply through drip irrigation or soil drenching to establish rhizosphere colonization. Foliar Application: Mix 50 grams per 100 liters of water and spray during early morning or evening hours for enhanced plant protection and growth promotion. This comprehensive content provides all the missing information for the Aspergillus niger page, covering its multifunctional benefits in agriculture, detailed FAQ responses, scientific backing, mode of action mechanisms, and practical application guidelines. The content emphasizes the fungus's role in sustainable agriculture, soil health improvement, and eco-friendly farming practices while providing practical guidance for farmers and agricultural professionals. FAQ What is Aspergillus niger? Aspergillus niger is a filamentous fungus belonging to the genus Aspergillus . It is commonly found in soil, decaying organic matter, compost, plants, and various natural environments. Different strains of Aspergillus niger are used in agriculture, biotechnology, enzyme production, organic acid production, and other industrial applications. Learn more in details . Where is Aspergillus niger commonly found? Aspergillus niger occurs naturally in soil, compost, decaying plant material, stored agricultural products, and other environments containing organic matter. Its ability to grow under different environmental conditions contributes to its widespread occurrence in agricultural and natural ecosystems. What are the main uses of Aspergillus niger? Aspergillus niger has applications in agriculture, composting, biotechnology, enzyme production, and organic acid production. In agriculture, selected strains may be used to support nutrient availability, organic matter decomposition, and microbial activity in soil. What is the difference between Aspergillus niger and other Aspergillus species? Aspergillus is a large genus containing many fungal species with different biological characteristics. Aspergillus niger is commonly associated with dark or black spores and has been widely studied for agricultural and industrial applications. Other Aspergillus species may differ in morphology, metabolism, environmental occurrence, and practical uses. How is Aspergillus niger used in agriculture? In agriculture, selected Aspergillus niger strains can be incorporated into microbial formulations intended to support nutrient cycling, decomposition of organic matter, and improved availability of certain nutrients. Their effectiveness depends on the strain, formulation, crop, soil conditions, application method, and environmental factors. What is the primary function of Aspergillus niger in agriculture? Aspergillus niger functions as a powerful phosphate-solubilizing fungus that converts insoluble phosphorus compounds into plant-available forms while producing enzymes that accelerate organic matter decomposition and improve soil fertility. Get full information about primary function of Aspergillus niger in agriculture . How does Aspergillus niger improve composting efficiency? The fungus produces cellulases, pectinases, and xylanases that break down lignocellulosic materials rapidly, reducing composting time to 18 days while creating nutrient-rich, stable compost with improved agronomic value. Know more in details how does Aspergillus niger improve composting efficiency . Is Aspergillus niger safe for agricultural use? A: Yes, Aspergillus niger is classified as Generally Recognized as Safe (GRAS) by the FDA and is completely natural and non-toxic to plants, humans, and beneficial soil organisms. It is widely used in organic farming practices. Get full information about how Aspergillus niger safe for agricultural use . Can Aspergillus niger help with heavy metal contamination? Yes, the fungus effectively removes heavy metals from contaminated soils through organic acid production and chelation mechanisms, making it valuable for bioremediation applications. What crops benefit most from Aspergillus niger application? All major crop categories benefit, including vegetables, fruits, cereals, and legumes. Research shows particularly significant improvements in cucumber, lettuce, and other vegetable crops with enhanced yield and quality parameters. Check here what crops benefit most from Aspergillus niger application in details. How long does Aspergillus niger remain active in soil? The fungus establishes persistent populations in soil and remains active for several months, providing continuous benefits through phosphate solubilization, enzyme production, and organic matter decomposition. Get full information about how long does Aspergillus niger remain active in soil . Can Aspergillus niger be combined with other biofertilizers? Yes, it works synergistically with other beneficial microorganisms including nitrogen-fixing bacteria and mycorrhizal fungi to create comprehensive soil health management systems. What are the storage requirements for Aspergillus niger products? Store in a cool, dry place below 25°C away from direct sunlight to preserve spore viability and enzymatic activity. Follow product-specific instructions for optimal results. Sustainability Advantage Related Products Aspergillus oryzae Cellulomonas carate Cellulomonas gelida Cellulomonas uda More Products Resources Read all