Biology:Methanocaldococcus

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Short description: Genus of archaea

Methanocaldococcus
Scientific classification
Domain:
Kingdom:
Phylum:
Class:
Order:
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Genus:
Methanocaldococcus

Whitman 2002
Type species
Methanocaldococcus jannaschii
(Jones et al. 1984) Whitman 2002
Species
  • M. bathoardescens
  • M. fervens
  • M. indicus
  • M. infernus
  • M. jannaschii
  • M. villosus
  • M. vulcanius

Methanocaldococcus formerly known as Methanococcus is a genus of coccoid methanogen archaea.[1] 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[2] and it was the first archaean genome to be completely sequenced, revealing many novel and eukaryote-like elements.[3]

Nomenclature

The name Methanocaldococcus has Latin and Greek roots, methano for methane, caldo for hot, and the Greek kokkos for the spherical shape of the cells. Overall, the name means spherical cell that produces methane at hot temperatures.[4]

Metabolism

All species in Methanocaldococcus are obligate methanogens. They use hydrogen to reduce carbon dioxide. Unlike many other species within Euryarchaeota, they cannot use formate, acetate, methanol or methylamines as substrates.[4]

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) [5] and National Center for Biotechnology Information (NCBI).[6]

16S rRNA based LTP_06_2022[7][8][9] 53 marker proteins based GTDB 08-RS214[10][11][12]
Methanocaldococcaceae

M. villosus Bellack et al. 2011

M. indicus L'Haridon et al. 2003

M. infernus (Jeanthon et al. 1998) Whitman 2002

M. vulcanius (Jeanthon et al. 1999) Whitman 2002

M. jannaschii (Jones et al. 1984) Whitman 2002 (type sp.)

M. fervens (Jeanthon et al. 1999) Whitman 2002

M. bathoardescens Stewart et al. 2015

M. lauensis L'Haridon et al. 2023

Methanocaldococcus
Methanocaldococcaceae

M. villosus

M. infernus

M. fervens

M. bathoardescens

M. jannaschii

M. vulcanius

Methanocaldococcus

See also

References

  1. See the NCBI webpage on Methanocaldococcus. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. http://ftp.ncbi.nih.gov/pub/taxonomy/. Retrieved 2007-03-19. 
  2. W.J. Jones (December 1983). "Methanococcus jannaschii sp. nov., an extremely thermophilic methanogen from a submarine hydrothermal vent". Arch. Microbiol. 136 (4): 254–261. doi:10.1007/BF00425213. 
  3. C.J. Bult (August 1996). "Complete genome sequence of the methanogenic archaeon, Methanococcus jannaschii". Science 273 (5278): 1058–1073. doi:10.1126/science.273.5278.1058. PMID 8688087. Bibcode1996Sci...273.1058B. 
  4. 4.0 4.1 Bergey's Manual of Systematic Bacteriology. 1 (2 ed.). Nueva York: Springer Science and Business Media. 2012-01-13. p. 243. doi:10.1007/978-0-387-21609-6. ISBN 978-1-4419-3159-7. https://books.google.com/books?id=3znhBwAAQBAJ&q=genus+Methanocaldococcus&pg=PA244. Retrieved 2016-07-27. 
  5. J.P. Euzéby. "Methanococcales". List of Prokaryotic names with Standing in Nomenclature (LPSN). Archived from the original on 2013-01-27. https://lpsn.dsmz.de/genus/methanocaldococcus. 
  6. Sayers. "Methanococcales". National Center for Biotechnology Information (NCBI) taxonomy database. https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=183939&lvl=5&lin. 
  7. "The LTP". https://imedea.uib-csic.es/mmg/ltp/#LTP. 
  8. "LTP_all tree in newick format". https://imedea.uib-csic.es/mmg/ltp/wp-content/uploads/ltp/LTP_all_06_2022.ntree. 
  9. "LTP_06_2022 Release Notes". https://imedea.uib-csic.es/mmg/ltp/wp-content/uploads/ltp/LTP_06_2022_release_notes.pdf. 
  10. "GTDB release 08-RS214". https://gtdb.ecogenomic.org/about#4%7C. 
  11. "ar53_r214.sp_label". https://data.gtdb.ecogenomic.org/releases/release214/214.0/auxillary_files/ar53_r214.sp_labels.tree. 
  12. "Taxon History". https://gtdb.ecogenomic.org/taxon_history/. 

Further reading

Scientific journals

Scientific books

Scientific databases

External links

Wikidata ☰ Q13601816 entry