
Microbial Species
Explore Our Library of Beneficial Microbes
Unlock the potential of your soil with our carefully selected microbial strains, engineered to enhance nutrient availability, promote plant growth, and suppress harmful pathogens, ensuring healthier crops and improved yields.
Features of Our Species Directory

Diverse Catalog
Over 100 industrially important microbial strains, including nitrogen-fixers, phosphate solubilizers, biocontrol agents, probiotics, and more.

Mechanistic Details
In-depth explanation of how each microbe interacts with plants or the environment (enzyme production, hormone stimulation, pathogen antagonism, etc.).

Application Guidance
Recommendations for use-cases and industries – which crops, soil conditions, or contamination issues each strain is best suited for.

Research & Compliance
Key literature references and regulatory status (such as OMRI-listed for organic use) provided for each species, ensuring you trust its proven performance.

Regular Updates
Continuously updated with new strains and the latest scientific findings as our R&D expands the frontier of microbial technology.
Segments We Focus On

Nitrogen-fixing bacteria are naturally occurring microorganisms essential to the nitrogen cycle. They possess the unique capability to convert atmospheric nitrogen (N₂)—which is inert and unavailable directly to plants—into bioavailable nitrogen compounds such as ammonia (NH₃) or ammonium ions (NH₄⁺). This crucial biological process, termed biological nitrogen fixation, significantly enhances soil fertility, reduces dependency on synthetic fertilizers, and supports sustainable agriculture and environmental conservation.
At IndoGulf BioAg, we specialize in cultivating high-quality, non-GMO, robust strains of nitrogen-fixing bacteria tailored for diverse agricultural applications. Leveraging advanced biotechnological methods and rigorous quality control, our products consistently deliver superior performance, reliability, and sustainability.










Unlike traditional chemical nematicides, bionematicides are derived from naturally occurring microorganisms—such as nematophagous fungi and beneficial bacteria—or bioactive compounds from plants and microbes. These agents offer an eco-friendly, residue-free alternative, making them a vital part of modern integrated pest management (IPM) systems.



The pathway involves multiple enzymatic steps mediated by specialized enzymes, each catalyzing a specific reduction reaction:
Nitrate reductase (Nar or Nap): Reduces nitrate (NO₃⁻) to nitrite (NO₂⁻).
Nitrite reductase (Nir): Converts nitrite to nitric oxide (NO).
Nitric oxide reductase (Nor): Reduces NO to nitrous oxide (N₂O).
Nitrous oxide reductase (Nos): Converts N₂O to dinitrogen gas (N₂), completing the process.





At the ecosystem level, AMF contribute to soil aggregation and long-term fertility by secreting glomalin and stabilizing soil particles. This symbiosis forms a foundational component of belowground biodiversity and function, offering a biologically-driven pathway to improved plant performance and soil resilience in both natural and managed systems.
Balance Your Soil with Beneficial Microbes
Unlock the potential of your soil with our carefully selected microbial strains, engineered to enhance nutrient availability, promote plant growth, and suppress harmful pathogens. Our proprietary formulations ensure healthier crops and improved yields across diverse agricultural settings.
FAQ
What are microbial strains used for?
Microbial strains are applied as biofertilizers, biopesticides, and soil conditioners. They enhance nutrient cycling, suppress pathogens, and stimulate plant growth by producing hormones and solubilizing minerals.
How do microbial strains help in agriculture?
By fixing atmospheric nitrogen, solubilizing phosphorus and iron, decomposing organic waste, and out-competing soil pathogens, microbial strains improve nutrient availability, crop health, and yield stability.
Are microbial strains safe for organic farming?
Yes. All our microbial products are approved for organic agriculture. They are naturally derived, non-toxic, and free of synthetic chemicals, aligning with sustainable and eco-friendly farming practices.
What are examples of microbial strains?
Common examples include Azospirillum brasilense (nitrogen fixer), Bacillus amyloliquefaciens (plant growth promoter), and Ampelomyces quisqualis (biocontrol of powdery mildew).
Nitrogen Cyclers
Alcaligenes denitrificans
Performs denitrification, reducing nitrates (NO₃⁻) to nitrogen gas (N₂) in anoxic zones. Ideal for mitigating nitrate pollution in runoff and wastewater.
Azospirillum brasilense & Azospirillum lipoferum
Nitrogen-fixing bacteria that colonize cereal roots to improve nutrient uptake, root development, and yields by up to 29% under optimized conditions.
Azotobacter vinelandii
A free-living diazotroph that enhances soil nitrogen levels for non-legumes, reducing dependence on synthetic fertilizers.
Plant Growth Promoters & Biocontrol Agents
Bacillus amyloliquefaciens
Produces auxins and lytic enzymes to stimulate growth and suppress soil-borne pathogens. Safe for non-targets.
Bacillus circulans
Solubilizes phosphorus and synthesizes indoleacetic acid for improved root growth and stress tolerance.
Bacillus firmus
Enhances phosphorus availability, stimulates fruit quality, and provides barrier protection against nematodes.
Soil Nutrient Solubilizers
Acidithiobacillus ferrooxidans
A biofertilizer that solubilizes iron, making it available in iron-deficient soils and boosting chlorophyll synthesis.
Acidithiobacillus novellus
Oxidizes sulfur, improving sulfur availability and correcting deficiencies to increase yield and plant health.
Acidithiobacillus thiooxidans
Converts elemental sulfur and sulfide minerals into sulfate. Its acidophilic nature also aids in bioremediation of acid mine drainage and heavy-metal neutralization.
Fungal Activators & Biocontrol
Ampelomyces quisqualis
A mycoparasitic fungus targeting powdery mildew. It infects pathogen reproductive structures, reducing disease spread without chemical fungicides.
Aspergillus awamori, A. niger & A. oryzae
Produce a suite of enzymes (cellulases, amylases, proteases) to accelerate composting, improve soil organic matter breakdown, and support bioremediation of pollutants.
Our Products

In bioremediation, B. licheniformis degrades pollutants, including hydrocarbons, and tolerates extreme environmental conditions. Additionally, its ability to produce antimicrobial compounds helps suppress plant pathogens, making it a valuable tool for sustainable agriculture and environmental management.

In industrial applications, B. macerans produces valuable enzymes like cellulases and amylases, which are used in biofuel production, paper processing, and textile industries. Its role in breaking down organic polymers also supports bioremediation efforts, helping manage agricultural and industrial waste sustainably..

In addition to nutrient mobilization, B. megaterium contributes to soil health by enhancing microbial diversity, facilitating organic matter decomposition, and improving soil structure. It also exhibits antagonistic activity against phytopathogens, supporting natural pest suppression and reducing reliance on chemical pesticides.
Compatible with biofertilizers and biopesticides, B. megaterium integrates seamlessly into organic and integrated farming systems, contributing to increased nutrient-use efficiency, enhanced crop resilience, and sustainable yield improvement while enriching soil microbiome.









When applied to breeding sites, Bti releases protein toxins that are ingested by the larvae. These toxins disrupt the larvae's digestive system, leading to their death within hours. Remarkably, Bti’s mechanism of action is species-specific, ensuring that it poses no harm to beneficial insects, plants, animals, or humans. Additionally, it breaks down quickly in the environment, leaving no harmful residues behind.
This powerful yet safe solution is a cornerstone in integrated pest management, trusted by professionals worldwide for its ability to protect public health and the environment. From controlling mosquitoes that spread diseases to managing agricultural pests, Bti provides a sustainable alternative to chemical insecticides.

As a biological insecticide, Btk has become a cornerstone of integrated pest management (IPM) and organic agriculture, combining high efficacy with environmental safety.





