Query: NC_007355:4740161 Methanosarcina barkeri str. fusaro chromosome 1, complete sequence
Lineage: Methanosarcina barkeri; Methanosarcina; Methanosarcinaceae; Methanosarcinales; Euryarchaeota; Archaea
General Information: Methanosarcina barkeri strain Fusaro was isolated from mud samples taken from the freshwater lake, Lago del Fusaro near Naples, Italy. This organism is a strictly anaerobic, non-motile, methane-producing archaeon and has been found in marine mud, rumens of ungulates, lagoons polluted with animal waste and sludge from anaerobic sewage digestors.
Subject: NC_005877:284829 Picrophilus torridus DSM 9790, complete genome
Lineage: Picrophilus torridus; Picrophilus; Picrophilaceae; Thermoplasmatales; Euryarchaeota; Archaea
General Information: This organism is a thermoacidophile, and can grow at temperatures around 60C and in environments where the pH drops to 0. The name reflects the area where the organism was isolated, which was a hot dry soil in Kawayu, in northern Japan, that was solfataric (volcanic area that gives off sulfur). The genome also encodes a large number of proton-driven secondary transporters which represents another adaptation to the acid environment. This organism expresses a surface layer (S-layer) that consists of a semicrystalline array of proteins outside the cell membrane.