Query: NC_000868:196015 Pyrococcus abyssi GE5, complete genome
Lineage: Pyrococcus abyssi; Pyrococcus; Thermococcaceae; Thermococcales; Euryarchaeota; Archaea
General Information: This organism was isolated from an active chimney in the North Fiji Basin of the Pacific Ocean at a depth of 3500 meters. This organism is an obligate anaerobic, hyperthermophilic archaeon. Growth occurs at a temperature of 67-103 degrees C with optimal growth at 103 degrees C at 200 atmospheres of pressure. Increased hydrostatic pressure has been found to extend the upper growth temperature and stimulate growth.
Subject: NC_007406:632436 Nitrobacter winogradskyi Nb-255, complete genome
Lineage: Nitrobacter winogradskyi; Nitrobacter; Bradyrhizobiaceae; Rhizobiales; Proteobacteria; Bacteria
General Information: Nitrite-oxidizing bacterium. Members of this genus are found in marine, freshwater, and terrestrial habitats, often in association with ammonia-oxidizing bacteria. These organisms oxidize nitrate, generated by the oxidation of ammonia, to nitrate and play an important role in the global nitrogen cycle. The enzyme involved in nitrite oxidation, nitrite oxidoreductase, can also reduce nitrate to nitrite in the absence of oxygen, allowing Nitrobacter sp. to grow anaerobically. Nitrobacter winogradskyi is commonly isolated from soil, fresh and sea water, sewage, and compost. This organism can grow anaerobically using nitrate as the electron acceptor, forming nitrite, nitric oxide, and nitrous oxide.