Name: Methanothrix thermophila Kamagata et al. 1992

Category: Species

Proposed as: sp. nov.

Etymology: ther.mo’phi.la. Gr. fem. adj. thermê, heat; N.L. fem. adj. suff. -phila, friend, loving; from Gr. fem. adj. philê, loving; N.L. fem. adj. thermophila, heat-loving

Gender: feminine

Type strain: DSM 6194; JCM 14653; NBRC 101360; PT

Conduct genome-based taxonomy at

16S rRNA gene: AB071701 Analyse FASTA

Valid publication: Kamagata Y, Kawasaki H, Oyaizu H, Nakamura K, Mikami E, Endo G, Koga Y, Yamasato K. Characterization of three thermophilic strains of Methanothrix ("Methanosaeta") thermophila sp. nov. and rejection of Methanothrix ("Methanosaeta") thermoacetophila. Int J Syst Bacteriol 1992; 42:463-468.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 42, part 3 of the IJSB. Int J Syst Bacteriol 1992; 42:656.

Nomenclatural status: validly published under the ICNP, rejected name

Taxonomic status: synonym

Correct name: Methanothrix thermoacetophila corrig. Nozhevnikova and Chudina 1988

Risk group: 1

• Synonyms:

  • Name	Kind
    Methanosaeta thermophila (Kamagata et al. 1992) Boone and Kamagata 1998	homotypic synonym, validly published under the ICNP, rejected name
    Methanothrix thermoacetophila corrig. Nozhevnikova and Chudina 1988	heterotypic synonym, validly published under the ICNP
    Methanosaeta thermoacetophila (Nozhevnikova and Chudina 1988) Patel and Sprott 1990	heterotypic synonym, validly published under the ICNP, illegitimate name
    Methanothrix thermoacetophilia Nozhevnikova and Chudina 1988	heterotypic synonym, inaccurate spelling

• Notes:
  • ⏲ According to Garrity et al. (2011), this species is a later heterotypic synonym of Methanothrix thermoacetophilia Nozhevnikova and Chudina 1988. Publication: Garrity GM, Labeda DP, Oren A. Judicial Commission of the International Committee on Systematics of Prokaryotes. XIIth International (IUMS) Congress of Bacteriology and Applied Microbiology. Minutes of the meetings, 3, 4 and 6 August 2008, Istanbul, Turkey. Int. J. Syst. Evol. Microbiol. 2011; 61:2775-2780.
  • ⏲ According to Garrity et al. (2011), this species is a later heterotypic synonym of Methanosaeta thermoacetophila (Nozhevnikova and Chudina 1988) Patel and Sprott 1990. Publication: Garrity GM, Labeda DP, Oren A. Judicial Commission of the International Committee on Systematics of Prokaryotes. XIIth International (IUMS) Congress of Bacteriology and Applied Microbiology. Minutes of the meetings, 3, 4 and 6 August 2008, Istanbul, Turkey. Int. J. Syst. Evol. Microbiol. 2011; 61:2775-2780.
  • ⏲ According to Garrity et al. (2011), this species is a later heterotypic synonym of Methanothrix thermoacetophila corrig. Nozhevnikova and Chudina 1988. Publication: Garrity GM, Labeda DP, Oren A. Judicial Commission of the International Committee on Systematics of Prokaryotes. XIIth International (IUMS) Congress of Bacteriology and Applied Microbiology. Minutes of the meetings, 3, 4 and 6 August 2008, Istanbul, Turkey. Int. J. Syst. Evol. Microbiol. 2011; 61:2775-2780.
  • 😷 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.
  • 🎓 Name mentioned 6 times in PubMed until 2024-03-27.
  • 🧍 Rejected name (Opinion 75, Judicial Commission of the International Committee on Systematics of Prokaryotes, IJSEM 64:3597-3598). Publication: Tindall BJ. The genus name Methanothrix Huser et al. 1983 and the species combination Methanothrix soehngenii Huser et al. 1983 do not contravene Rule 31a and are not to be considered as rejected names, the genus name Methanosaeta Patel and Sprott 1990 refers to the same taxon as Methanothrix soehngenii Huser et al. 1983 and the species combination Methanothrix thermophila Kamagata et al. 1992 is rejected: Supplementary information to Opinion 75. Judicial Commission of the International Committee on Systematics of Prokaryotes. Int J Syst Evol Microbiol 2014; 64:3597-3598.
  • 🧍 See also the file Some problems with the genera Methanothrix and Methanosaeta. Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592.
  • 🧍 In a Request for an Opinion, Boone and Kamagata 1998 [1] propose the transfer of Methanothrix thermophila to the genus Methanosaeta as Methanosaeta thermophila comb. nov., without a change in the type strain of the species or the species circumscription. A new name or new combination subject to a Request for an Opinion should not be considered as validly published unless the Judicial Commision votes to approve the Request. The Opinion requested by Boone and Kamagata is not yet published. Consequently, the new combination Methanosaeta thermophila (Kamagata et al. 1992) Boone and Kamagata 1998, cited in the Bergey's Manual of Systematic Bacteriology [2], is not validly published. Publication: Boone DR, Kamagata Y. Rejection of the species Methanothrix soehngeniiVP and the genus MethanothrixVP as nomina confusa, and transfer of Methanothrix thermophilaVP to the genus MethanosaetaVP as Methanosaeta thermophila comb. nov. Request for an Opinion. Int. J. Syst. Bacteriol. 1998; 48:1079-1080.
  • 🧍 This species includes the type strain (Z-517 = DSM 4774) of Methanosaeta thermoacetophila (Nozhevnikova and Chudina 1988) Patel and Sprott 1990. Publication: Patel GB. Genus I. Methanosaeta Patel and Sprott 1990, 80VP. 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. 289-294.
  • 🧍 This species includes the type strain (Z-517 DSM 4774) of Methanosaeta thermoacetophila (Nozhevnikova and Chudina 1988) Patel and Sprott 1990. — Methanothrix thermophila Kamataga et al. 1992 and Methanothrix thermoacetophila Nozhevnikova and Chudina 1988 refer to the same taxon. The consequence of this ruling is that Methanothrix thermophila is illegitimate, should be rejected and Methanothrix thermoacetophila should be retained in its place. Publication: Patel GB, Sprott GD. Methanosaeta concilii gen. nov., sp. nov. ("Methanothrix concilii") and Methanosaeta thermoacetophila nom. rev., comb. nov. Int. J. Syst. Bacteriol. 1990; 40:79-82.

Parent taxon: Methanothrix Huser et al. 1983

Assigned by: Kamagata Y, Kawasaki H, Oyaizu H, Nakamura K, Mikami E, Endo G, Koga Y, Yamasato K. Characterization of three thermophilic strains of Methanothrix ("Methanosaeta") thermophila sp. nov. and rejection of Methanothrix ("Methanosaeta") thermoacetophila. Int J Syst Bacteriol 1992; 42:463-468.

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Record number: 777957