Name: Methanobacterium thermalcaliphilum corrig. Blotevogel et al. 1988

Category: Species

Proposed as: sp. nov.

Etymology: therm.al.ca.li’phi.lum. N.L. neut. adj. suff. -philum, loving; N.L. neut. adj. thermalcaliphilum

Pronunciation (Latin), gender: … t^herm-al-ka-LI-p^hi-lum, neuter

Type strain: AC60; ATCC 43169; DSM 3267

Conduct genome-based taxonomy at

16S rRNA gene: LT996592 Analyse FASTA

Effective publication: Blotevogel K, Fischer U, Mocha M, Jannsen S. Methanobacterium thermoalcaliphilum spec. nov., a new moderately alkaliphilic and thermophilic autotrophic methanogen. Arch. Microbiol. 1985; 142:211-217. 🇩🇪

IJSEM list: Anonymous. Validation list no. 25. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1988; 38:220-222.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Methanothermobacter thermautotrophicus corrig. (Zeikus and Wolfe 1972) Wasserfallen et al. 2000

Risk group: 1

• Synonyms:

  • Name	Kind
    Methanobacterium thermoautotrophicus Zeikus and Wolfe 1972 (Approved Lists 1980)	heterotypic synonym, inaccurate spelling
    Methanobacterium thermoalcaliphilum Blotevogel et al. 1988	other spelling of name, inaccurate spelling
    Methanothermobacter thermautotrophicus corrig. (Zeikus and Wolfe 1972) Wasserfallen et al. 2000	heterotypic synonym, validly published under the ICNP
    Methanobacterium thermoautotrophicum Zeikus and Wolfe 1972 (Approved Lists 1980)	heterotypic synonym, inaccurate spelling
    Methanobacterium thermautotrophicum corrig. Zeikus and Wolfe 1972 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Methanobacterium thermoformicicum Zhilina and Ilarionov 1986	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Kotelnikova et al. (1993), this species is a later heterotypic synonym of Methanobacterium thermoautotrophicus Zeikus and Wolfe 1972 (Approved Lists 1980). Publication: Kotelnikova SV, Obraztsova AY, Blotevogel KH, Popov IN. Taxonomic analysis of thermophilic strains of the genus Methanobacterium: reclassification of Methanobacterium thermoalcaliphilum as a synonym of Methanobacterium thermoautotrophicum. Int. J. Syst. Bacteriol. 1993; 43:591-596. 🇩🇪
  • ⏲ According to Kotelnikova et al. (1993), this species is a later heterotypic synonym of Methanobacterium thermautotrophicum corrig. Zeikus and Wolfe 1972 (Approved Lists 1980). Publication: Kotelnikova SV, Obraztsova AY, Blotevogel KH, Popov IN. Taxonomic analysis of thermophilic strains of the genus Methanobacterium: reclassification of Methanobacterium thermoalcaliphilum as a synonym of Methanobacterium thermoautotrophicum. Int. J. Syst. Bacteriol. 1993; 43:591-596. 🇩🇪
  • ⏲ According to Kotelnikova et al. (1993), this species is a later heterotypic synonym of Methanothermobacter thermautotrophicus corrig. (Zeikus and Wolfe 1972) Wasserfallen et al. 2000. Publication: Kotelnikova SV, Obraztsova AY, Blotevogel KH, Popov IN. Taxonomic analysis of thermophilic strains of the genus Methanobacterium: reclassification of Methanobacterium thermoalcaliphilum as a synonym of Methanobacterium thermoautotrophicum. Int. J. Syst. Bacteriol. 1993; 43:591-596. 🇩🇪
  • ⏲ According to Kotelnikova et al. (1993), this species is a later heterotypic synonym of Methanobacterium thermoautotrophicum Zeikus and Wolfe 1972 (Approved Lists 1980). Publication: Kotelnikova SV, Obraztsova AY, Blotevogel KH, Popov IN. Taxonomic analysis of thermophilic strains of the genus Methanobacterium: reclassification of Methanobacterium thermoalcaliphilum as a synonym of Methanobacterium thermoautotrophicum. Int. J. Syst. Bacteriol. 1993; 43:591-596. 🇩🇪
  • ❗ Methanobacterium thermalcaliphilum is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Methanobacterium.
  • 😷 The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 0 times in PubMed until 2025-06-04.
  • 🧍 The original spelling of the specific epithet, thermoalcaliphilum (sic), has been corrected by Boone and Mah 1989. Publication: Boone DR, Mah RA. Genus I. Methanobacterium Kluyver and van Niel 1936, 399AL, emend. Balch and Wolfe in Balch, Fox, Magrum, Woese and Wolfe 1979, 284. In: Staley JT, Bryant MP, Pfennig N, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 3, The Williams & Wilkins Co., Baltimore, 1989, p. 2175-2177. 🇺🇸

Parent taxon: Methanobacterium Kluyver and van Niel 1936 (Approved Lists 1980)

Assigned by: Blotevogel K, Fischer U, Mocha M, Jannsen S. Methanobacterium thermoalcaliphilum spec. nov., a new moderately alkaliphilic and thermophilic autotrophic methanogen. Arch. Microbiol. 1985; 142:211-217. 🇩🇪

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Record number: 777804