Query: NC_003413:128228 Pyrococcus furiosus DSM 3638, complete genome
Lineage: Pyrococcus furiosus; Pyrococcus; Thermococcaceae; Thermococcales; Euryarchaeota; Archaea
General Information: This strain was isolated from a shallow marine solfataric (volcanic area that gives off sulfuric gases) region at Vulcano Island, Italy. This organism is a strictly anaerobic, hyperthermophilic archaeon. Growth occurs at temperatures between 67 and 103 degrees C, with optimal growth at 100 degrees C and a pH of 7.0. This organism is highly motile due to a bundle of flagella.
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.