Methanofollis

In taxonomy, Methanofollis is a genus of the Methanomicrobiaceae.^[1]

Methanofollis ("a methane-producing bag") is a non-motile, Gram-negative, obligately anaerobic, mesophilic archaeon that produces methane. It grows between the temperatures 20–45 °C (optimum 34–40 °C), and at the pH of around 7.

The genome of the archaeon has not yet sequenced. The G + C content of the DNA is determined to be 60.0%.

The cells of Methanofollis are highly irregular cocci, with diameter of 1.25–2.0 μm. The major polar lipids are phospholipids, glycolipids, and phosphoglycolipids. It utilizes H₂/CO₂, formate, 2-propanol/CO₂, and 2-butanol/CO₂ for growth and methanogenesis. No growth has been observed on acetate, trimethylamine, methanol, ethanol, 2-propanol, isobutanol, or 2-butanol as catabolic substrates.

Most species of the archaeon are isolated from anaerobic high-rate wastewater bioreactors or solfataric fields. For example, M. tationis was isolated from a solfataric field on Mount Tatio in the Atacama desert in northern Chile.

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)^[2] and National Center for Biotechnology Information (NCBI).^[1]

• List of Archaea genera

• Zellner G; Boone DR; Keswani J; Whitman WB; et al. (1999). "Reclassification of Methanogenium tationis and Methanogenium liminatans as Methanofollis tationis gen. nov., comb. nov. and Methanofollis liminatans comb. nov. and description of a new strain of Methanofollis liminatans". Int. J. Syst. Bacteriol. 49: 247–255. doi:10.1099/00207713-49-1-247. PMID 10028269.
• Balch WE; Fox GE; Magrum LJ; Woses CR; et al. (1979). "Methanogens: reevaluation of a unique biological group". Microbiol. Rev. 43 (2): 260–296. doi:10.1128/MMBR.43.2.260-296.1979. PMC 281474. PMID 390357.
• Shimizu, Satoru; Ueno, Akio; Ishijima, Yoji (September 7, 2011). "Microbial Communities Associated with Acetate-Rich Gas-Petroleum Reservoir Surface Facilities". Bioscience, Biotechnology, and Biochemistry. 75 (9): 1835–1837. doi:10.1271/bbb.110243. PMID 21897018.

• Methanofollis at BacDive - the Bacterial Diversity Metadatabase

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