Query: NC_009464:1804791 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_013665:2132000 Methanocella paludicola SANAE, complete genome
Lineage: Methanocella paludicola; Methanocella; Methanocellaceae; Methanocellales; Euryarchaeota; Archaea
General Information: This strain was isolated in Japan from rice paddy samples. Strain SANAE belongs to the Rice Cluster I (RC-I), a 16S rRNA and mcrA gene sequences-defined euryarchaeal lineage within Methanosarcinales and Methanomicrobiales. The RC-I group plays a key role in releasing methane from rice fields, which accounts for 10 to 25% of the global methane emissions.