Query: NC_017249:8221992 Bradyrhizobium japonicum USDA 6, complete genome
Lineage: Bradyrhizobium japonicum; Bradyrhizobium; Bradyrhizobiaceae; Rhizobiales; Proteobacteria; Bacteria
General Information: This nitrogen-fixing bacterium develops a symbiotic relationship with the soybean plant Glycine max and is related to other N2-fixing Rhizobia which are symbiotic with legumes. The bacterium establishes itself in a root nodule which provides a protective environment for the organism to live while the bacterium provides the plant cell with nitrogen. This is an agriculturally important symbiotic relationship as it obviates the need for expensive and environmentally damaging fertilizer.Genes that code for proteins involved in root nodulation are carried on the chromosome. The production of the nodulation signal, lipochitin, is directed by genes which are turned on in the presence of plant flavonoid compounds. The bacteria are endocytosed into a cortical cell, and are enclosed within a membrane bound organelle termed the symbiosome.
Subject: NC_012483:3000619 Acidobacterium capsulatum ATCC 51196, complete genome
Lineage: Acidobacterium capsulatum; Acidobacterium; Acidobacteriaceae; Acidobacteriales; Acidobacteria; Bacteria
General Information: Isolated from acidic mine drainage in Yanahara mine, Okayama, Japan. Acidophilic bacterium. This genus comprises a number of species commonly found in water reservoirs, microbial mats, many different soil types, marine and freshwater sediments, as well as in hot-spring mats and sediments, etc. Furthermore, they sometimes form the dominant group in a habitat. These bacteria are involved in the first step of destruction of biologically complex molecules produced by autotrophic (capable of synthesizing their own nutrients) microorganisms. Acidobacterium capsulatum is an aerobic, mesophilic, chemo-organotroph able to use a variety of carbon sources and to grow up to pH 6.0. The species comprises several strains characterized by orange pigmentation, production of menoquinones as their sole quinones, and branched-chain iso fatty acids as their cell envelope components.