Definition
The 'genus Rhizobium' is a group of bacteria recognized for their ability to form symbiotic relationships with legumes, enabling nitrogen fixation. These bacteria infect the root hairs of leguminous plants and induce the formation of root nodules. Inside these nodules, *Rhizobium* bacteria convert atmospheric nitrogen into ammonia, which the plant can utilize for growth. The plant, in turn, provides the bacteria with carbohydrates produced through photosynthesis. This mutually beneficial interaction is crucial for sustainable agriculture and ecosystem health. Understanding the 'genus Rhizobium' is vital for understanding plant nutrition and soil fertility.