Query: NC_009051:1588060 Methanoculleus marisnigri JR1, complete genome
Lineage: Methanoculleus marisnigri; Methanoculleus; Methanomicrobiaceae; Methanomicrobiales; Euryarchaeota; Archaea
General Information: Methanogen present in marine and freshwater sediments. Methanoculleus marisnigri was first isolated from sediment from the Black Sea, but has also been identified in freshwater sediments. This organism can use hydrogen, formate, and secondary alcohols, such as propanol and butanol, for methanogenesis.
Subject: NC_007955:2122437 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.