Name: Thermoproteus tenax Zillig and Stetter 1982

Category: Species

Proposed as: sp. nov.

Etymology: te’nax. L. 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.
  • 🎓 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