Query: NC_009033:1108236 Staphylothermus marinus F1, complete genome
Lineage: Staphylothermus marinus; Staphylothermus; Desulfurococcaceae; Desulfurococcales; Crenarchaeota; Archaea
General Information: Hyperthermophilic archaeon. This organism was isolated from hydrothermal marine sediment from Vulcano Island in Italy. Staphylothermus marinus is heterotrophic and requires sulfur, which is reduced to H2S, for 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.