Name: Methanobacterium thermophilum Laurinavichus et al. 1990

Category: Species

Proposed as: sp. nov.

Etymology: ther.mo’phi.lum. Gr. masc. adj. thermos, hot; N.L. neut. adj. suff. -philum, loving; from Gr. neut. adj. philon, friend; N.L. neut. adj. thermophilum, thermophilic

Pronunciation, gender: t^her-MO-p^hi-lum, neuter

Type strain: DSM 6529; M; OCM 231; VKM B-1786

See detailed strain information at

16S rRNA gene: X99048 Analyse FASTA

Effective publication: Laurinavichus KS, Kotelnikova SV, Obraztsova AY. A new species of the thermophilic methane-forming bacterium Methanobacterium thermophilum. Mikrobiologiya 1988; 57:1035-1041.

IJSEM list: Anonymous. Validation list no. 34. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1990; 40:320-321.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Methanothermobacter thermophilus (Laurinavichus et al. 1990) Boone 2002

Risk group: 1

• Synonyms:

  • Name	Kind
    Methanothermobacter thermophilus (Laurinavichus et al. 1990) Boone 2002	homotypic synonym, validly published under the ICNP
    "Methanothermobacter thermophilus" (Laurinavichus et al. 1990) Wasserfallen et al. 2000	homotypic synonym, not validly published

• Notes:
  • ❗ Methanobacterium thermophilum 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 Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2023-10-29. 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 1 time in PubMed until 2025-06-04.
  • 🧍 On the Validation List no. 34 the reference of the paper by Laurinavichus et al. is incorrectly cited as Mikrobiologiya, 1987 (sic), 57, 1035-1041. Publication: Wasserfallen A, Nolling J, Pfister P, Reeve J, Conway de Macario E. Phylogenetic analysis of 18 thermophilic Methanobacterium isolates supports the proposals to create a new genus, Methanothermobacter gen. nov., and to reclassify several isolates in three species, Methanothermobacter thermautotrophicus comb. nov., Methanothermobacter wolfeii comb. nov., and Methanothermobacter marburgensis sp. nov. Int J Syst Evol Microbiol 2000; 50:43-53.
  • 🧍 See also: Publication: Boone DR. Genus IV. Methanothermobacter Wasserfallen, Nölling, Pfister, Reeve and Conway de Macario 2000, 51VP. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, p. 230-233.

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

Assigned by: Laurinavichus KS, Kotelnikova SV, Obraztsova AY. A new species of the thermophilic methane-forming bacterium Methanobacterium thermophilum. Mikrobiologiya 1988; 57:1035-1041.

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Record number: 777812