Name: "Thermus thermophilus" (ex Oshima and Imahori 1974) Williams et al. 1995

Category: Species

Proposed as: sp. nov., nom. rev.

Etymology: ther.mo’phi.lus Gr. fem. n. [θέρμη] thermê, heat; N.L. masc. adj. suff. -philus, friend, loving; from Gr. masc. adj. [φίλος] philos, on; N.L. masc. adj. thermophilus, heat-loving

Gender: masculine

Type strain: ATCC 27634; DSM 579; HB8; JCM 10941; NBRC 101084; NCIB 11244; NCIMB 11244

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X58342 Analyse FASTA

Original publication: Williams RA, Smith KE, Welch SG, Micallef J, Sharp RJ. DNA relatedness of Thermus strains, description of Thermus brockianus sp. nov., and proposal to reestablish Thermus thermophilus (Oshima and Imahori). Int J Syst Bacteriol 1995; 45:495-499.

Nomenclatural status: not validly published

Correct name: Thermus thermophilus (ex Oshima and Imahori 1974) Manaia et al. 1995

Risk group: 1

• Synonyms:

  • Name	Kind
    Thermus thermophilus (ex Oshima and Imahori 1974) Manaia et al. 1995	homotypic synonym, validly published under the ICNP

• Notes:
  • This name was not found in the expected IJSEM notification list.
  • Regarded as not validly published. According to Rule 24b(2), Thermus thermophilus (ex Oshima and Imahori 1974) Williams et al. 1995 has priority over Thermus thermophilus (ex Oshima and Imahori 1974) Manaia et al. 1995. However, Williams et al. 1995 proposed the name Thermus thermophilus as valid only in the abstract of the publication without a formal proposal in the text, and did not present phenotypic results showing that the species could be distinguished from other species of the genus Thermus. For these reasons, the publication by Manaia et al. 1994 is considered the effective publication for the revival of the species Thermus thermophilus and the Validation List n° 54 is considered as the valid publication. Publication: Da Costa MS, Nobre MF, Rainey FA. Genus I. Thermus Brock and Freeze 1969, 295AL emend. Nobre, Trüper and da Costa 1996b, 605. 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. 404-414.
  • See also: Publication: De Vos P, Trüper HG, Tindall BJ. Judicial Commission of the International Committee on Systematics of Prokaryotes Xth International (IUMS) Congress of Bacteriology and Applied Microbiology. Minutes of the meetings, 28, 29 and 31 July and 1 August 2002, Paris, France. Int. J. Syst. Evol. Microbiol. 2005; 55:525-532.

Parent taxon: Thermus Brock and Freeze 1969 (Approved Lists 1980)

Assigned by: Williams RA, Smith KE, Welch SG, Micallef J, Sharp RJ. DNA relatedness of Thermus strains, description of Thermus brockianus sp. nov., and proposal to reestablish Thermus thermophilus (Oshima and Imahori). Int J Syst Bacteriol 1995; 45:495-499.

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Record number: 782670