Name: Thermoproteus neutrophilus Stetter and Zillig 1989

Category: Species

Proposed as: sp. nov.

Etymology: neu.tro’phi.lus. L. adj. neut. -tra -trum, neither the one nor the other, neutral; N.L. masc. adj. suff. -philus, friend, loving; from Gr. masc. adj. philos, on; N.L. masc. adj. neutrophilus, preferring neutral pH.

Gender: masculine

Type strain: DSM 2338; JCM 9278; NBRC 100436; V24Sta

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB009618 Analyse FASTA

Effective publication: Zillig W. Genus I. Thermoproteus Zillig and Stetter 1982, 267”' (effective publication Zillig and Stetter in Zillig, Stetter, Shafer, Janekovic, Wunderl, Holz and Palm 1981,225). In: Staley JT, Bryant MP, Pfennig N, Holt JG (eds), Bergey's manual of systematic bacteriology, vol. 3., The Williams & Wilkins Co., Baltimore, 1989, p. 2241.

IJSEM list: Anonymous. Validation list no. 31. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1989; 39:495-497.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Pyrobaculum neutrophilum (Stetter and Zillig 1989) Chan et al. 2013

Risk group: 1

• Synonyms:

  • Name	Kind
    Pyrobaculum neutrophilum (Stetter and Zillig 1989) Chan et al. 2013	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Thermoproteus neutrophilus 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 Thermoproteus.
  • 😷 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.
  • 🎓 Name mentioned 19 times in PubMed until 2024-03-28.
  • 🧍 In Validation List no. 31, Thermoproteus neutrophilus Stetter and Zillig 1989 is erroneously cited as Thermoproteus neutrophilus Zillig 1989. Publication: Anonymous. Validation list no. 31. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1989; 39:495-497.

Parent taxon: Thermoproteus Zillig and Stetter 1982

Assigned by: Zillig W. Genus I. Thermoproteus Zillig and Stetter 1982, 267”' (effective publication Zillig and Stetter in Zillig, Stetter, Shafer, Janekovic, Wunderl, Holz and Palm 1981,225). In: Staley JT, Bryant MP, Pfennig N, Holt JG (eds), Bergey's manual of systematic bacteriology, vol. 3., The Williams & Wilkins Co., Baltimore, 1989, p. 2241.

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Record number: 782626