Query: NC_009464:1397739 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.
- Sequence; - BLASTP hit: hover for score (Low score = Light, High score = Dark); - hypothetical protein; - cds: hover for description
General Information: Isolated from Lake Gabara in Egypt. Extreme haloalkaliphilic archeon. Natronomonas pharaonis is able to survive at high salt and pH conditions which results in limited nitrogen availability through ammonium. In order to compensate for this, Natronomonas pharaonis has developed three systems to promote nitrogen assimilation: direct uptake of ammonia, uptake of nitrate, and uptake of urea. Another problem with high pH environments is the use of a proton gradient for the generation of ATP, which other alkaliphiles have adapted to by substitution of sodium ions for protons. However, this organism utilizes protons for ATP generation as determined by experimental data.