Query: NC_014221:169996 Truepera radiovictrix DSM 17093 chromosome, complete genome
Lineage: Truepera radiovictrix; Truepera; Trueperaceae; Deinococcales; Deinococcus-Thermus; Bacteria
General Information: Isolation: Water sample from a hot spring runoffs; Country: Portugal; Temp: Thermophile; Temp: 50C; Habitat: Fresh water, Hot spring. Truepera radiovictrix is a radiation-resistant species was isolated from hot spring runoff on the Island of Sao Miguel in the Azores. The hot springs in this area discharge neutral to slightly alkaline water that may reach the boiling point. These strains form orange/red colonies, spherical-shaped cells, have an optimum growth temperature of about 50 degrees C, an optimum pH for growth between about 7.5 and 9.5, and do not grow at pH below 6.5 or above pH 11.2.
Subject: NC_012560:2315350 Azotobacter vinelandii DJ, 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.