Query: NC_012918:2668031 Geobacter sp. M21 chromosome, complete genome
Lineage: Geobacter; Geobacter; Geobacteraceae; Desulfuromonadales; Proteobacteria; Bacteria
General Information: Isolation: in situ uranium bioremediation experiment; Country: USA; Temp: Mesophile; Habitat: Fresh water, Sediment, Soil. This strain was isolated from an in situ uranium bioremediation experiment in Rifle, Colorado, USA.
Subject: NC_021150:4311902 Azotobacter vinelandii CA6, complete genome
Lineage: Azotobacter vinelandii; Azotobacter; Pseudomonadaceae; Pseudomonadales; Proteobacteria; Bacteria
General Information: This organism was first isolated from the soil in Vineland, New Jersey, although it is found worldwide. It is a large obligate aerobe that has one of the highest respiratory rates of any organism. Azotobacter vinelandii also produces a number of unusual nitrogenases which allow it to fix atmospheric nitrogen to ammonia, a compound it can then use as a nitrogen source. It protects the oxygen-sensitive nitrogenase enzymes through its high respiratory rate, which sequesters the nitrogenase complexes in an anoxic environment. This organism has a number of unusual characteristics. Under extreme environmental conditions, the cell will produce a cyst that is resistant to dessication and is surrounded by two capsular polysaccharide layers. This organism produces two industrially important polysaccharides, poly-beta-hydroxybutyrate (PHB) and alginate. PHB is a thermoplastic biopolymer, and alginate is used in the food industry. Alginate is also used by the pathogen Pseudomonas aeruginosa to infect the lungs of cystic fibrosis patients.