Methanosarcinales

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Methanosarcinales
Methanosarcina barkeri fusaro.gif
Methanosarcina barkeri fusaro
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Archaea
Kingdom: Euryarchaeota
Class: Methanomicrobia
Order: Methanosarcinales
Boone et al. 2002
Families
Synonyms
  • Methanotrichales Akinyemi et al. 2021

Methanosarcinales is an order of archaeans in the class Methanomicrobia. [1]

Contents

Large amounts of methane are produced in marine sediments [2] but are then consumed before contacting aerobic waters or the atmosphere. Although no organism that can consume methane anaerobically has ever been isolated, biogeochemical evidence indicates that the overall process involves a transfer of electrons from methane to sulphate and is probably mediated by several organisms, including a methanogen (operating in reverse) and a sulfate-reducer (using an unknown intermediate substrate).

Organisms placed within the order can be found in freshwater, saltwater, salt-rich sediments, laboratory digestors, and animal digestive systems. Most cells have cell walls that lack peptidoglycan and pseudomurein. They are strictly anaerobic and survive by producing methane. Some species use acetate as a substrate and others use methyl compounds, such as methyl amines and methyl sulfates. [3]

Phylogeny

16S rRNA based LTP_06_2022 [4] [5] [6] 53 marker proteins based GTDB 08-RS214 [7] [8] [9]

Methermicoccaceae

Methanosarcinales

Methanosaetaceae [incl. Methanotrichaceae]

Methanosarcinaceae

Methanotrichales

Methanotrichaceae [incl. Methanosaetaceae]

Methanosarcinales

"Methanocomedenaceae" (ANME-2a, ANME-2b)

"Ethanoperedentaceae" (EX4572-44)

"Methanoperedentaceae" (ANME-2d, AAA)

"Methanogastraceae" (ANME-2c)

Methanosarcinaceae

See also

Related Research Articles

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<span class="mw-page-title-main">Thermoplasmata</span> Class of archaea

In taxonomy, the Thermoplasmata are a class of the Euryarchaeota.

<span class="mw-page-title-main">Thermoplasmataceae</span> Family of archaea

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<span class="mw-page-title-main">Thermoplasmatales</span> Order of archaea

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<span class="mw-page-title-main">Methanobacteria</span> Class of archaea

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<span class="mw-page-title-main">Thermococci</span> Class of archaea

In taxonomy, the Thermococci are a class of microbes within the Euryarchaeota.

<span class="mw-page-title-main">Methanomicrobia</span> Class of archaea

In the taxonomy of microorganisms, the Methanomicrobia are a class of the Euryarchaeota.

<span class="mw-page-title-main">Methanococci</span> Class of archaea

Methanococci is a class of methanogenic archaea in the phylum Euryarchaeota. They can be mesophilic, thermophilic or hyperthermophilic.

<span class="mw-page-title-main">Acidilobales</span> Order of archaea

Acidilobales are an order of archaea in the class Thermoprotei.

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Methanobacteriales is an order of archaeans in the class Methanobacteria. Species within this order differ from other methanogens in that they can use fewer catabolic substrates and have distinct morphological characteristics, lipid compositions, and RNA sequences. Their cell walls are composed of pseudomurein. Most species are Gram-positive with rod-shaped bodies and some can form long filaments. Most of them use formate to reduce carbon dioxide, but those of the genus Methanosphaera use hydrogen to reduce methanol to methane.

In taxonomy, the Methanococcales are an order of the Methanococci.

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.

<span class="mw-page-title-main">Methanosarcinaceae</span> Family of archaea

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.

In taxonomy, Methanosaeta is a genus of microbes within Methanosaetaceae. Like other species in this family, those of Methanosaeta metabolize acetate as their sole source of energy. The genus contains two species, Methanosaeta concilii, which is the type species and Methanosaeta thermophila. For a time, some scientists believed there to be a third species, Methanosaeta soehngenii, but because it has not been described from a pure culture, it is now called Methanothrix soehngenii.

<i>Methanohalophilus</i> Genus of archaea

In taxonomy, Methanohalophilus is a genus of the Methanosarcinaceae.

In taxonomy, Methanotorris is a genus of the Methanocaldococcaceae. The organisms in this genus differ from those of Methanothermococcus in that they are hyperthermophiles and from those of Methanocaldococcus in that they have no flagella, are not motile, and do not require selenium to grow. These microbes have not been shown to cause any illnesses.

References

  1. See the NCBI webpage on Methanosarcinales. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information . Retrieved 2007-03-19.
  2. Hayes, John M.; Hinrichs, Kai-Uwe; Sylva, Sean P.; Brewer, Peter G.; DeLong, Edward F. (1999). "Methane-consuming archaebacteria in marine sediments". Nature . 398 (6730): 802–805. Bibcode:1999Natur.398..802H. doi:10.1038/19751. PMID   10235261. S2CID   4416542.
  3. Kendall, Melissa M.; David R. Boone (2006-10-10). "12". In Stanley Falkow; Eugene Rosenberg; Karl-Heinz Schleifer; Erko Stackebrandt (eds.). The Prokaryotes. Vol. 3. Springer Science & Business Media. p. 244. doi:10.1007/0-387-30743-5_12. ISBN   0387254935 . Retrieved 2016-08-27.
  4. "The LTP" . Retrieved 10 May 2023.
  5. "LTP_all tree in newick format" . Retrieved 10 May 2023.
  6. "LTP_06_2022 Release Notes" (PDF). Retrieved 10 May 2023.
  7. "GTDB release 08-RS214". Genome Taxonomy Database . Retrieved 10 May 2023.
  8. "ar53_r214.sp_label". Genome Taxonomy Database . Retrieved 10 May 2023.
  9. "Taxon History". Genome Taxonomy Database . Retrieved 10 May 2023.

Further reading

Scientific journals

Scientific books