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Hydrothermarchaeota

Phylum of archaea From Wikipedia, the free encyclopedia

Hydrothermarchaeota is a proposed phylum of archaea typically found in marine environments high in iron and sulfur.[1] The phylum name was proposed in 2017 after it was extracted from hydrothermal vents in Juan de Fuca Ridge.[2] The clade was named after the association with hydrothermal environments.[2] It is known through phylogenetic analysis of SSU rRNA.[2]

Phylum:"Hydrothermarchaeota"
Jungbluth, Amend & Rappe 2017
Quick facts Scientific classification (proposed), Class ...
Hydrothermarchaeota
Scientific classification Edit this classification
(proposed)
Domain: Archaea
Kingdom: Methanobacteriati
Phylum: "Hydrothermarchaeota"
Jungbluth, Amend & Rappe 2017
Class
  • Hydrothermarchaeia
Synonyms
  • Marine Benthic Group E (MBG-E) Kato et al. 2019
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Habitat and metabolism

Genomic data from members of the clade Hydrothermarchaeota have been found in deep-sea hydrothermal environments in all of the world oceans except the Southern ocean,[1][3][4][5][6] although they are not limited to hydrothermal vents.[1][7] Hydrothermarchaeotes have yet to be cultivated in lab,[1] but genetic analysis shows a large diversity of metabolic pathways, including nitrogen fixation, autotrophy, heterotrophy, hydrogenotrophy, oxidation of carbon monoxide, and reduction of sulfur, iron, and/or nitrate.[1][7]

Taxonomy

  • Phylum "Candidatus Hydrothermarchaeota" Jungbluth, Amend & Rappe 2017[2][8][9]
    • Class "Ca. Hydrothermarchaeia" Chuvochina et al. 2019[10]
      • Order "Ca. Hydrothermarchaeales" Chuvochina et al. 2019[11]
        • Family "Ca. Hydrothermarchaeaceae" Chuvochina et al. 2019[12]
          • "Ca. Hydrothermarchaeum" Chuvochina et al. 2019[13]
            • "Ca. H. profundi" Chuvochina et al. 2019[14]
        • Family BMS3B[15][16][17]
          • "Ca. Pyrohabitans" Adam et al. 2022
            • "Ca. P. jungbluthii" Adam et al. 2022

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