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Methanocaldococcus

{{Short description|Genus of archaea}}

{{Automatic taxobox

| taxon = Methanocaldococcus

| authority = Whitman 2002

| type_species = Methanocaldococcus jannaschii

| type_species_authority = (Jones et al. 1984) Whitman 2002

| subdivision_ranks = Species

| subdivision =

}}

Methanocaldococcus formerly known as Methanococcus is a genus of coccoid methanogen archaea.See the NCBI [https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=196118 webpage on Methanocaldococcus]. Data extracted from the {{cite web | url=http://ftp.ncbi.nih.gov/pub/taxonomy/ | title=NCBI taxonomy resources | publisher=National Center for Biotechnology Information |access-date=2007-03-19}} 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{{cite journal|author=W.J. Jones |display-authors=etal|date=December 1983|title=Methanococcus jannaschii sp. nov., an extremely thermophilic methanogen from a submarine hydrothermal vent|journal=Arch. Microbiol.|volume=136|issue=4|pages=254–261|doi=10.1007/BF00425213|s2cid=33277659}} and it was the first archaean genome to be completely sequenced, revealing many novel and eukaryote-like elements.

{{cite journal|author=C.J. Bult |display-authors=etal|date=August 1996|title=Complete genome sequence of the methanogenic archaeon, Methanococcus jannaschii|journal=Science|volume=273|issue=5278|pages=1058–1073|doi=10.1126/science.273.5278.1058|pmid=8688087|bibcode=1996Sci...273.1058B|s2cid=41481616}}

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.{{cite book|editor1=David R. Boone|editor2=Richard W. Castenholz|volume=1|title=Bergey's Manual of Systematic Bacteriology|edition=2|date=2012-01-13|publisher=Springer Science and Business Media|location=Nueva York|page=243|isbn=978-1-4419-3159-7|doi=10.1007/978-0-387-21609-6|s2cid=41426624|url=https://books.google.com/books?id=3znhBwAAQBAJ&q=genus+Methanocaldococcus&pg=PA244|access-date=2016-07-27}}

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.

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) {{cite web|author=J.P. Euzéby |url=http://www.bacterio.cict.fr/classifphyla.html#Euryarchaeota |title=Methanococcales |access-date=2011-11-17 |publisher=List of Prokaryotic names with Standing in Nomenclature (LPSN) |url-status=dead |archive-url=https://lpsn.dsmz.de/genus/methanocaldococcus |archive-date=2013-01-27 }} and National Center for Biotechnology Information (NCBI).{{cite web |author = Sayers|display-authors = etal| url=https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=183939&lvl=5&lin |title=Methanococcales |access-date=2011-06-05 |publisher=National Center for Biotechnology Information (NCBI) taxonomy database}}

class="wikitable"
colspan=1 | 16S rRNA based LTP_06_2022{{cite web|title=The LTP |url=https://imedea.uib-csic.es/mmg/ltp/#LTP| access-date=10 May 2023}}{{cite web|title=LTP_all tree in newick format| url=https://imedea.uib-csic.es/mmg/ltp/wp-content/uploads/ltp/LTP_all_06_2022.ntree |access-date=10 May 2023}}{{cite web|title=LTP_06_2022 Release Notes| url=https://imedea.uib-csic.es/mmg/ltp/wp-content/uploads/ltp/LTP_06_2022_release_notes.pdf |access-date=10 May 2023}}

! colspan=1 | 53 marker proteins based GTDB 09-RS220{{cite web |title=GTDB release 09-RS220 |url=https://gtdb.ecogenomic.org/about#4%7C |website=Genome Taxonomy Database|access-date=10 May 2024}}{{cite web |title=ar53_r220.sp_label |url=https://data.gtdb.ecogenomic.org/releases/release220/220.0/auxillary_files/ar53_r220.sp_labels.tree |website=Genome Taxonomy Database|access-date=10 May 2024}}{{cite web |title=Taxon History |url=https://gtdb.ecogenomic.org/taxon_history/ |website=Genome Taxonomy Database|access-date=10 May 2024}}

style="vertical-align:top|

{{Clade|style=font-size:90%; line-height:90%

|label1=Methanocaldococcaceae

|sublabel1=Methanocaldococcus

|1={{clade

|1={{clade

|1=M. villosus Bellack et al. 2011

|2={{clade

|1=M. indicus L'Haridon et al. 2003

|2=M. infernus (Jeanthon et al. 1998) Whitman 2002

}}

}}

|2={{clade

|1=M. vulcanius (Jeanthon et al. 1999) Whitman 2002

|2={{clade

|1=M. jannaschii (Jones et al. 1984) Whitman 2002 (type sp.)

|2={{clade

|1=M. fervens (Jeanthon et al. 1999) Whitman 2002

|2={{clade

|1=M. bathoardescens Stewart et al. 2015

|2=M. lauensis L'Haridon et al. 2023

}}

}}

}}

}}

}}

}}

|

{{Clade|style=font-size:90%; line-height:90%

|label1=Methanocaldococcaceae

|sublabel1=Methanocaldococcus

|1={{clade

|1={{clade

|1=M. villosus

|2=M. infernus

}}

|2={{clade

|1=M. lauensis L'Haridon et al. 2023

|2={{clade

|1={{clade

|1=M. bathoardescens

|2=M. fervens

}}

|2={{clade

|1=M. jannaschii

|2=M. vulcanius

}}

}}

}}

}}

}}

See also

References

{{Reflist}}

Further reading

  • {{cite book | last = Whitman | first = WB | date = 2001 | chapter = Genus I. Methanocaldococcus gen. nov. | title = Bergey's Manual of Systematic Bacteriology Volume 1: The Archaea and the deeply branching and phototrophic Bacteria | edition = 2nd | editor = DR Boone | editor2 = RW Castenholz | publisher = Springer Verlag | location = New York | isbn = 978-0-387-98771-2 | url-access = registration | url = https://archive.org/details/bergeysmanualofs00boon }}
  • {{cite book | author = Whitman WB | author2 = Boone DR | author3 = Koga Y | date = 2001 | chapter = Family II. Methanocaldococcaceae fam. nov. | title = Bergey's Manual of Systematic Bacteriology Volume 1: The Archaea and the deeply branching and phototrophic Bacteria | edition = 2nd | editor = DR Boone | editor2 = RW Castenholz | publisher = Springer Verlag | location = New York | isbn = 978-0-387-98771-2 | url-access = registration | url = https://archive.org/details/bergeysmanualofs00boon }}

External links

  • [http://archaea.ucsc.edu/cgi-bin/hgGateway?db=methJann1 Information on type species 'Methanocaldococcus jannaschii']
  • [http://bacdive.dsmz.de/index.php?search=Methanocaldococcus&submit=Search Methanocaldococcus at BacDive - the Bacterial Diversity Metadatabase]

{{Extremophile}}

{{Taxonbar|from=Q13601816}}

Category:Archaea genera

Category:Euryarchaeota

{{Euryarchaeota-stub}}