Query: NC_007681:1532500 Methanosphaera stadtmanae DSM 3091, complete genome
Lineage: Methanosphaera stadtmanae; Methanosphaera; Methanobacteriaceae; Methanobacteriales; Euryarchaeota; Archaea
General Information: Isolated from human feces. Methanogen that uses methanol and hydrogen to produce methane. This organism produces methane from methanol and hydrogen unlike most methanogens that use carbon dioxide and hydrogen.
Subject: NC_007955:1254051 Methanococcoides burtonii DSM 6242, complete genome
Lineage: Methanococcoides burtonii; Methanococcoides; Methanosarcinaceae; Methanosarcinales; Euryarchaeota; Archaea
General Information: Psychrotolerant methanogenic archeon. This organism is a strictly anaerobic, slightly halophilic archeon that was isolated from the anoxic hypolimnion (layer of cold noncirculating water below the thermocline) of Ace Lake, Antarctica. Growth occurs at a temperature between 1.7-29.5 degrees C with optimal growth at 23.4 degrees C. In addition this organism requires 0.1-0.5 M NaCl and either magnesium sulfate or magnesium chloride at a concentration greater than 0.01 M for growth.