Table of contents Taxonomy and Phylogeny Structure Sex and reproduction Matter and energy Interactions Rhizobia are one of several group of bacteria capable of 'fixing' nitrogen, i.e. converting dinitrogen gas into ammonia and then into organic molecules such as amino acids. Because of this ability, nitrogen fixing bacteria are significant conduits between an extremely large pool of nitrogen in the atmosphere and living things who otherwise could only obtain nitrogen by recycling it from ... Learn about Rhizobium , a soil bacterium that fixes atmospheric nitrogen, its classification, role in nitrogen fixation, and the diseases it can cause. Rhizobium is a nitrogen-fixing root nodule bacterial symbiont. It belongs to the genus of Gram-negative soil bacteria. It attacks the root nodules of the plants and converts the atmospheric nitrogen into organic nitrogen or ammonia. Rhizobium is a soil habitat Gram negative bacterium which is associated symbiotically with the roots of leguminous plant. The symbiosis is based on specific recognition of signal molecules produced by bacteria and its plant partners .Process of symbiosis results in biological nitrogen fixation in which nitrogen (N 2) is converted into ammonia (NH 3) and is subsequently available for plants and in turn plants provide nutrients to the bacteria .This genus of bacteria is aerobic in nature and ...
