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In taxonomy, the Thermoplasmatales are an order of the Thermoplasmata. All are acidophiles, growing optimally at pH below 2. Picrophilus is currently the most acidophilic of all known organisms, being capable of growing at a pH of -0.06. Many of these organisms do not contain a cell wall, although this is not true in the case of Picrophilus. Most members of the Thermotoplasmata are thermophilic.
Methanobacteria is a class of archaeans in the kingdom Euryarchaeota. Several of the classes of the Euryarchaeota are methanogens and the Methanobacteria are one of these classes.
In taxonomy, the Thermococci are a class of microbes within the Euryarchaeota.
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Methanococci is a class of methanogenic archaea in the phylum Euryarchaeota. They can be mesophilic, thermophilic or hyperthermophilic.
Methanosarcinales is an order of archaeans in the class Methanomicrobia.
In taxonomy, the Methanocaldococcaceae are a family of microbes within the order Methanococcales. It contains two genera, the type genus Methanocaldococcus and Methanotorris. These species are coccoid in form, neutrophilic to slightly acidophilic, and predominantly motile, and they have a very short generation period, from 25 to 45 minutes under optimal conditions. They produce energy exclusively through the reduction of carbon dioxide with hydrogen. Some species have been found in marine hydrothermal vents.
In taxonomy, the Methanosaetaceae are a family of microbes within the order Methanosarcinales. All species within this family use acetate as their sole source of energy.
In taxonomy, the Methanosarcinaceae are a family of the Methanosarcinales.
Methanocaldococcus formerly known as Methanococcus is a genus of coccoid methanogen archaea. They are all mesophiles, except the thermophilic M. thermolithotrophicus and the hyperthermophilic M. jannaschii. The latter was discovered at the base of a “white smoker” chimney at 21°N on the East Pacific Rise and it was the first archaean genome to be completely sequenced, revealing many novel and eukaryote-like elements.
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In taxonomy, Roseibacterium is a genus of the Rhodobacteraceae.
In taxonomy, Roseinatronobacter is a genus of the Rhodobacteraceae.
In taxonomy, Sagittula is a genus of the Rhodobacteraceae.
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References
- ↑ See the NCBI webpage on Methanotorris. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information . Retrieved 2007-03-19.
- 1 2 David R. Boone; Richard W. Castenholz, eds. (2012-01-13). Bergey's Manual of Systematic Bacteriology. Vol. 1 (2 ed.). Springer Science & Business Media. pp. 245–246. ISBN 978-0387216096 . Retrieved 2016-09-09.
