Methanofollis

Methanofollis
Scientific classification Edit this classification
Domain: Archaea
Kingdom: Methanobacteriati
Phylum: Methanobacteriota
Class: "Methanomicrobia"
Order: Methanomicrobiales
Family: Methanomicrobiaceae
Genus: Methanofollis
Zellner et al. 1999
Type species
Methanofollis tationis
(Zabel, König & Winter 1986) Zellner et al. 1999
Species

Methanofollis is a genus of archaean in the family Methanomicrobiaceae.[1]

Description and significance

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.

Genome structure

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

Cell structure and metabolism

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.

Ecology

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.

Phylogeny

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]

16S rRNA based LTP_07_2026[3][4][5] 53 marker proteins based GTDB 11-RS232[6][7][8]
Methanofollis

M. aquaemaris Lai & Chen 2001

M. formosanus Wu, Chen & Lai 2005

M. ethanolicus Imachi et al. 2009

M. propanolicus Dengler et al. 2026

M. fontis Chen et al. 2020

M. liminatans (Zellner et al. 1990) Zellner et al. 1999

M. tationis (Zabel, König & Winter 1986) Zellner et al. 1999

See also

References

  1. 1 2 C.L. Schoch. "Methanofollis". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2026-08-01.
  2. ↑ Methanofollis in LPSN; Freese, H. M.; Meier-Kolthoff, J. P.; Sardà Carbasse, J.; Afolayan, A. O.; Göker, M. (29 October 2025). "TYGS and LPSN in 2025: a Global Core Biodata Resource for genome-based classification and nomenclature of prokaryotes within DSMZ Digital Diversity". Nucleic Acids Research. 53: D1–D12. doi:10.1093/nar/gkaf1110.
  3. ↑ "The LTPlus". The All-Species Living Tree Project. Retrieved 1 August 2026.
  4. ↑ "LTP_all tree in newick format". The All-Species Living Tree Project. Retrieved 1 August 2026.
  5. ↑ Rossello-Mora, Ramon; Viver, Tomeu; Palmer-Rodríguez, Pere; Westram, Ralf; Bustos-Caparros, Esteban; Gago, Joan Francisco; Gonzalez-Mendez, Jaime; Llabrés, Mercè; Ludwig, Wolfgang; Amann, Rudolf (22 April 2026). "A pipeline for improved 16S rRNA gene-based phylogeny and diversity analyses of Bacteria and Archaea". Nature Portfolio. doi:10.21203/rs.3.rs-9370187/v1.
  6. ↑ "GTDB release 11-RS232". Genome Taxonomy Database. Retrieved 1 May 2026.
  7. ↑ "ar53_r232.sp_label". Genome Taxonomy Database. Retrieved 1 May 2026.
  8. ↑ "Taxon History". Genome Taxonomy Database. Retrieved 1 May 2026.

Further reading

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