Nitrogen-fixing bacteria that live in symbiosis with legume root nodules.
Microscopic single-celled organisms that drive many soil processes, including decomposition and nutrient cycling. They include cyanobacteria and actinomycetes.
A close and often long-term interaction between two species, which may be mutualistic, commensal, or parasitic.
A group of plants (such as beans, peas, and clovers) that form symbioses with nitrogen-fixing bacteria, enriching soil fertility.
