Thermoanaerobacter

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Thermoanaerobacter
Scientific classification Edit this classification
Domain: Bacteria
Phylum: Bacillota
Class: Clostridia
Order: Thermoanaerobacterales
Family: Thermoanaerobacteraceae
Genus: Thermoanaerobacter
Wiegel & Ljungdahl 1982
Type species
Thermoanaerobacter ethanolicus
Wiegel & Ljungdahl 1982
Species

See text

Synonyms
  • Acetogenium
    Leigh & Wolfe 1983
  • Thermoanaerobium Zeikus, Hegge & Anderson 1983
  • Thermobacteroides Ben-Bassat & Zeikus 1983

Thermoanaerobacter is a genus in the phylum

thermophilic and anaerobic, several of them were previously described as Clostridium species and members of the now obsolete genera Acetogenium and Thermobacteroides[2][3]

Etymology

The name Thermoanaerobacter derives from:

Greek noun aer, aeros (ἀήρ, ἀέρος), air; Neo-Latin masculine gender noun, bacter, nominally meaning "a rod", but in effect meaning a bacterium, rod; Neo-Latin masculine gender noun Thermoanaerobacter, rod which grows in the absence of air at elevated temperatures.[4]

Species

The genus contains 15 species, namely[4]

  • T. acetoethylicus (Ben-Bassat and Zeikus 1983) Rainey and Stackebrandt 1993 (Latin noun acetum, vinegar; Neo-Latin adjective ethylicus, pertaining to ethyl alcohol; Neo-Latin masculine gender adjective acetoethylicus, intended to mean producing acetic acid and ethanol.) This species, formerly known as Thermobacteroides acetoethylicus, used to be the type species of Thermobacteroides, but was transferred over to the genus Thermoanaerobacter, while the other member of the genus Thermobacteroides, Thermobacteroides proteolyticus was reclassified as Coprothermobacter proteolyticus[3]
  • thermophiles.) this species was previously known as Thermoanaerobium brockii[5][6]
  • T. ethanolicus Wiegel and Ljungdahl 1982 (Type species of the genus; Neo-Latin noun ethanol, ethanol;  Latin masculine gender suff. -icus, suffix used with the sense of pertaining to; Neo-Latin masculine gender adjective ethanolicus, indicating the production of ethanol.)[7]
  • "T. inferii" Orlygsson & Beck 2007
  • T. italicus Kozianowski et al. 1998 (Latin masculine gender adjective italicus, pertaining to Italy, where the organism was isolated.)[8]
  • "T. keratinophilus" Riesen & Antranikian 2001
  • T. kivui (Leigh and Wolfe 1983) Collins et al. 1994 (Neo-Latin genitive case noun kivui, pertaining to Kivu, named for its source, Lake Kivu.) This species used to be known as Acetogenium kivui (sole member of the former genus) before being transferred in this genus [9]
  • T. mathranii Larsen et al. 1998 (Neo-Latin genitive case noun mathranii, of Mathrani, in honor of the late Indra M. Mathrani, who contributed to the understanding of thermophilic anaerobes from hot springs during his short career.)[10][11]
  • T. pentosaceus Tomás, Karakashev & Angelidaki 2013[12]
  • Greek adjective  pseudēs, false; Neo-Latin adjective ethanolicus, a bacteria-specific epithet; Neo-Latin masculine gender adjective pseudethanolicus, a false (Thermoanaerobacter) ethanolicus.)[13]
  • Greek adjective philos (φίλος) meaning friend, loving; Neo-Latin masculine gender adjective siderophilus, iron-loving.)[14]
  • T. sulfurigignens Lee et al. 2007 (Latin noun sulfur, sulfur; Latin participle adjective gignens, producing; Neo-Latin participle adjective sulfurigignens, sulfur-producing.)[15]
  • Greek adjective philos (φίλος) meaning friend, loving; Neo-Latin masculine gender adjective sulfurophilus, liking elemental sulfur.)[16]
  • Greek noun kopria, dunghill; Neo-Latin genitive case noun thermocopriae, of heat compost.) This species was formerly known as Clostridium thermocopriae[9]
  • Greek adjective thermos (θερμός), hot; Neo-Latin masculine gender adjective hydrosulfuricus, pertaining to hydrogen sulfide; Neo-Latin masculine gender adjective thermohydrosulfuricus, indicating that the organism grows at high temperatures and reduces sulfite to H2S.), this species also used to be Clostridium thermohydrosulfuricum[6]
  • T. uzonensis Wagner et al. 2008 (Neo-Latin masculine gender adjective uzonensis, pertaining to the Uzon Caldera, Kamchatka, Far East Russia.)[17]
  • T. wiegelii Cook et al. 1996 (Neo-Latin genitive case noun wiegelii, of Juergen Wiegel, in recognition of his contributions to the study of thermophilic anaerobes.)[18]

Three former members of this genus, T. subterraneus, T. tengcongensis and T. yonseiensis, were reclassified as subspecies of Caldanaerobacter subterraneus[19]

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[20] and National Center for Biotechnology Information (NCBI)[21]

16S rRNA based
LTP_08_2023[22][23][24]
120 marker proteins based GTDB 08-RS214[25][26][27]

T. thermocopriae

T. mathranii alimentarius Carlier, Bonne & Bedora-Faure 2007

T. mathranii mathranii Larsen, Nielsen & Ahring 1998

T. italicus

T. pentosaceus

T. sulfurigignens

T. uzonensis

T. kivui

T. brockii lactiethylicus Cayol et al. 1995

T. pseudethanolicus

T. brockii

T. b. brockii (Zeikus et al. 1983) Lee et al. 1993

T. b. finnii (Schmid et al. 1986) Cayol et al. 1995

T. siderophilus

T. wiegelii

T. sulfurophilus

T. acetoethylicus

T. ethanolicus

T. thermohydrosulfuricus

T. kivui

T. uzonensis

T. pseudethanolicus (incl. T. brockii)

T. thermocopriae (incl. T. italicus & T. mathranii)

T. wiegelii

T. ethanolicus (incl. T. siderophilus & T. thermohydrosulfuricus)

See also

References

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  16. ^ Bonch-Osmolovskaya, E.A.; Miroshnichenko, M.L.; Chernykh, N.A.; Kostrikina, N.A.; Pikuta, E.V.; Rainey, F.A. (1997). "Reduction of elemental sulfur by moderately thermophilic organotrophic bacteria and the description of Thermoanaerobacter sulfurophilus sp. nov". Microbiology. 66: 483–489.
  17. PMID 18984694
    .
  18. .
  19. .
  20. ^ J.P. Euzéby. "Thermoanaerobacter". List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved 2022-09-09.
  21. ^ Sayers; et al. "Thermoanaerobacter". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2022-09-09.
  22. ^ "The LTP". Retrieved 20 November 2023.
  23. ^ "LTP_all tree in newick format". Retrieved 20 November 2023.
  24. ^ "LTP_08_2023 Release Notes" (PDF). Retrieved 20 November 2023.
  25. ^ "GTDB release 08-RS214". Genome Taxonomy Database. Retrieved 10 May 2023.
  26. ^ "bac120_r214.sp_label". Genome Taxonomy Database. Retrieved 10 May 2023.
  27. ^ "Taxon History". Genome Taxonomy Database. Retrieved 10 May 2023.