Name: Thermoproteus tenax Zillig and Stetter 1982

Category: Species

Proposed as: sp. nov.

Etymology: te’nax. L. masc. adj. tenax, tenacious, resistant

Gender: masculine

Type strain: ATCC 35583; DSM 2078; JCM 9277; Kra 1; NBRC 100435

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M35966 Analyse FASTA

Effective publication: Zillig W, Stetter KO, Schäfer W, Janekovic D, Wunderl S, Holz I, Palm P. Thermoproteales: a novel type of extremely thermoacidophilic anaerobic archaebacteria isolated from Icelandic solfataras. Zentralbl. Mikrobiol. Parasitenkd. Infektionskr. Hyg. Abt. 1 Orig. 1981; C2:205-227.

IJSEM list: Anonymous. Validation list no. 8. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1982; 32:266-268.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Thermoproteus Zillig and Stetter 1982. Publication: Zillig W, Stetter KO, Schäfer W, Janekovic D, Wunderl S, Holz I, Palm P. Thermoproteales: a novel type of extremely thermoacidophilic anaerobic archaebacteria isolated from Icelandic solfataras. Zentralbl. Mikrobiol. Parasitenkd. Infektionskr. Hyg. Abt. 1 Orig. 1981; C2:205-227.
  • ✏ The authority of the taxon name (Zillig and Stetter) deliberately differs from the authors of the publication (Zillig et al.).
  • 😷 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 72 times in PubMed until 2024-03-28.
  • 🧍 Complete authorship reads: Zillig and Stetter 1982 in Zillig, Stetter, Schäfer, Janekovic, Wunderl, Holz and Palm 1981.

Parent taxon: Thermoproteus Zillig and Stetter 1982

Assigned by: Zillig W, Stetter KO, Schäfer W, Janekovic D, Wunderl S, Holz I, Palm P. Thermoproteales: a novel type of extremely thermoacidophilic anaerobic archaebacteria isolated from Icelandic solfataras. Zentralbl. Mikrobiol. Parasitenkd. Infektionskr. Hyg. Abt. 1 Orig. 1981; C2:205-227.

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Record number: 782627