Query: NC_015590:145353 Sinorhizobium meliloti AK83 chromosome 1, complete sequence
Lineage: Sinorhizobium meliloti; Sinorhizobium; Rhizobiaceae; Rhizobiales; Proteobacteria; Bacteria
General Information: Environment: Host, Plant root, Root nodule, Soil; Temp: Mesophile; Temp: 25 - 30C. This organism, much like other Rhizobia, forms a symbiotic relationship with a leguminous plant, in this case the alfalfa plant (Medicago sativa). Expression of nodulation genes results in production of a nodulation signal which the plant cell recognizes inducing root nodule formation. The plant cell provides carbon compounds for the bacterium to grow on.
Subject: NC_002678:4859111 Mesorhizobium loti MAFF303099, complete genome
Lineage: Mesorhizobium loti; Mesorhizobium; Phyllobacteriaceae; Rhizobiales; Proteobacteria; Bacteria
General Information: Plant symbiont bacterium. This organism contains a symbiosis island that is responsible for symbiotic relationships with plants (lotus) which is similar to what is observed with other Rhizobia that form similar relationships with legumes. The bacterium enters root nodules and performs nitrogen-fixation for the plant cell while being provided with a protective environment to grow in. Nitrogen fixation and root nodule formation genes are carried on a symbiosis island.