Query: NC_008702:4064470 Azoarcus sp. BH72, complete genome
Lineage: Azoarcus; Azoarcus; Rhodocyclaceae; Rhodocyclales; Proteobacteria; Bacteria
General Information: This organism is a nitrogen-fixing obligate endophyte first isolated from the roots of Kaller grass in the Punjab region of Pakistan. These organisms are never found in root-free soil and colonize root tissues without causing disease. This strain has been shown to express genes involved in nitrogen fixation in root tissue and is thought to provide significant amounts of nitrogen to its host plant.
Subject: NC_007517:3151742 Geobacter metallireducens GS-15, complete genome
Lineage: Geobacter metallireducens; Geobacter; Geobacteraceae; Desulfuromonadales; Proteobacteria; Bacteria
General Information: First isolated from the Potomac river downstream of Washington, DC, USA in 1987. This organism actively moves towards metal attractants such as iron and manganese oxides, which are insoluble, and produces type IV pili for attachment to the insoluble substrates. Common metal-reducing bacterium. This organism, similar to what is observed in Geobacteria sulfurreducens, couples the oxidation of organic molecules to the reduction of iron by using insoluble Fe (III) as an electron acceptor under anaerobic conditions. This bacterium plays an imporant part of the nutrient cycling in aquatic environments. The cell can also use uranium and plutonium, therefore, this organism and may be important for the bioremediation of contaminated waste sites.