Bradyrhizobium elkanii is a beneficial nitrogen-fixing bacterium best known for its symbiotic relationship with soybean and other legumes. It forms nodules on plant roots and helps convert atmospheric nitrogen into forms that plants can use for growth. This makes it highly valuable in sustainable agriculture, especially in legume production systems where biological nitrogen fixation can reduce dependence on synthetic nitrogen fertilizers. But for Bradyrhizobium elkanii to be effective, it...

Paecilomyces lilacinus is a beneficial soil fungus widely used as a biological nematicide in agriculture. Its main use is to help control plant-parasitic nematodes, especially those that attack roots and reduce crop growth, yield, and quality. Nematodes are microscopic roundworms that live in the soil. Some species are harmless, but plant-parasitic nematodes feed on crop roots, causing root damage, poor nutrient uptake, stunted growth, yellowing, wilting, and yield loss. Because nematodes...

Photo credit: https://thunderhouse4-yuri.blogspot.com/2015/08/penicillium-citrinum.html Penicillium is a large group of fungi found naturally in soil, air, food materials, decaying organic matter, indoor environments, and agricultural systems. Some Penicillium species are extremely useful. They are involved in antibiotic production, food fermentation, enzyme production, soil nutrient cycling, and biological agriculture. Other species may cause food spoilage, produce mycotoxins, or contribute...