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

Pronunciation, gender: … e-t^ha-NO-li-kus, masculine

Type strain: ATCC 31550; DSM 2246; JW 200

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. — 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 86 times in PubMed until 2025-06-04.
  • 🧍 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. 🇺🇸

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 0
Total number of child taxa: 4

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Thermoanaerobacter ethanolicus subsp. ethanolicus" (Wiegel and Ljungdahl 1982) Bing 2024	not validly published	preferred name
    "Thermoanaerobacter ethanolicus subsp. indiensis" (Pal 2014) Bing 2024	not validly published	preferred name
    "Thermoanaerobacter ethanolicus subsp. siderophilus" (Slobodkin et al. 1999) Bing 2024	not validly published	synonym
    "Thermoanaerobacter ethanolicus subsp. thermohydrosulfuricus" (Klaushofer and Parkkinen 1965) Bing 2024	not validly published	synonym

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