Query: NC_009464:650997 Uncultured methanogenic archaeon RC-I, complete genome
Lineage: Methanocella arvoryzae; Methanocella; Methanocellaceae; Methanocellales; Euryarchaeota; Archaea
General Information: This organism is a key methane producer in the rhizome of rice. A large portion of the methane that is emitted in rice fields is produced by methanogenic archaea. Rice Cluster I (RC-I) methanogens in the rice rhizosphere play a key role in this methane production.
Subject: NC_020389:2165590 Methanosarcina mazei Tuc01, complete genome
Lineage: Methanosarcina mazei; Methanosarcina; Methanosarcinaceae; Methanosarcinales; Euryarchaeota; Archaea
General Information: This organism is a strictly anaerobic, non-motile, methane-producing archaeon. This organism can also aggregate forming large irregular shaped clumps of cells. Occasionally these aggregates can grow to 1000 microns or more in diameter. Growth occurs at pH 5.5-8.0, with optimum growth at pH 6.8-7.2. Growth occurs at pH 5.5-8.0, with optimum growth at pH 6.8-7.2. Can be found in decaying leaf litter, garden soil, sewage treatment sludge digestors, black mud, feces of herbivores and other urban waste and sewage products.