Name: Thermoanaerobacter ethanolicus Wiegel and Ljungdahl 1982

Category: Species

Proposed as: sp. nov.

Etymology: e.tha.no’li.cus. N.L. neut. n. ethanol, ethanol; L. masc. adj. suff. -icus, suffix used with the sense of pertaining to; N.L. masc. adj. ethanolicus, indicating the production of ethanol

Gender: masculine

Type strain: ATCC 31550; DSM 2246; JW 200

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X58347 Analyse FASTA

Effective publication: Wiegel J, Ljungdahl LG. Thermoanaerobacter ethanolicus gen. nov., spec. nov., a new, extreme thermophilic, anaerobic bacterium. Arch. Microbiol. 1981; 128:343-348.

IJSEM list: Anonymous. Validation list no. 9. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1982; 32:384-385.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Thermoanaerobacter Wiegel and Ljungdahl 1982. Publication: Wiegel J, Ljungdahl LG. Thermoanaerobacter ethanolicus gen. nov., spec. nov., a new, extreme thermophilic, anaerobic bacterium. Arch. Microbiol. 1981; 128:343-348.
  • 😷 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 86 times in PubMed until 2024-03-28.
  • 🧍 Strain 39E, originally characterized as Clostridium thermohydrosulfuricum strain 39E and later renamed as Thermoanaerobacter ethanolicus strain 39E represents a novel species of the genus Thermoanaerobacter, for which the name Thermoanaerobacter pseudethanolicus sp. nov. was proposed by Onyenwoke et al. 2007. Publication: Onyenwoke RU, Kevbrin VV, Lysenko AM, Wiegel J. Thermoanaerobacter pseudethanolicus sp. nov., a thermophilic heterotrophic anaerobe from Yellowstone National Park. Int J Syst Evol Microbiol 2007; 57:2191-2193.

Parent taxon: Thermoanaerobacter Wiegel and Ljungdahl 1982

Assigned by: Wiegel J, Ljungdahl LG. Thermoanaerobacter ethanolicus gen. nov., spec. nov., a new, extreme thermophilic, anaerobic bacterium. Arch. Microbiol. 1981; 128:343-348.

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Record number: 782503