Species Thermoanaerobacter pentosaceus

Name: Thermoanaerobacter pentosaceus Tomás et al. 2013

Category, proposed as: species, sp. nov.

Etymology: pen.to.sa’ce.us. N.L. neut. n. pentosum, a pentose sugar; L. masc. adj. suff. -aceus, suffix used with the sense of belonging to; N.L. masc. adj. pentosaceus, relating to a pentose

Pronunciation (Latin), gender: t^her-mo-an-a-e-ro-BAK-ter pen-to-SA-ke-us, masculine

Type strain: CECT 8142; DSM 25963; DTU01; KCTC 4529; VKM B-2752

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: GU176611 Analyse FASTA

Valid publication: Tomas AF, Karakashev D, Angelidaki I. Thermoanaerobacter pentosaceus sp. nov., an anaerobic, extremely thermophilic, high ethanol-yielding bacterium isolated from household waste. Int J Syst Evol Microbiol 2013; 63:2396-2404. 🇩🇰

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 63, part 7 of the IJSEM. Int J Syst Evol Microbiol 2013; 63:3549-3550.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Thermoanaerobacter thermocopriae (Jin et al. 1988) Collins et al. 1994

Risk group: 1

• Synonyms:

  • Name	Kind
    "Thermoanaerobacter thermocopriae subsp. italicus" (Kozianowski et al. 1998) Bing 2024	heterotypic synonym, not validly published, distinct rank
    Clostridium thermocopriae Jin et al. 1988	heterotypic synonym, validly published under the ICNP
    Thermoanaerobacter thermocopriae (Jin et al. 1988) Collins et al. 1994	heterotypic synonym, validly published under the ICNP
    "Thermoanaerobacter thermocopriae subsp. mathranii" (Larsen et al. 1998) Bing 2024	heterotypic synonym, not validly published, distinct rank
    Thermoanaerobacter mathranii Larsen et al. 1998	heterotypic synonym, validly published under the ICNP
    Thermoanaerobacter italicus Kozianowski et al. 1998	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Bouras et al. (2026), this species is a later heterotypic synonym of Clostridium thermocopriae Jin et al. 1988. Publication: Bouras N, Dif G, Belghit S, Nguyen SV, Jacobs JL, Toumatia O, Ebada SS, Nouioui I. Genome-based reclassification of the genus Thermoanaerobacter: taxonomic emendations and new combinations. Anaerobe 2026; 0:103027. 🇩🇿
  • ⏲ According to Bouras et al. (2026), this species is a later heterotypic synonym of Thermoanaerobacter thermocopriae (Jin et al. 1988) Collins et al. 1994. Publication: Bouras N, Dif G, Belghit S, Nguyen SV, Jacobs JL, Toumatia O, Ebada SS, Nouioui I. Genome-based reclassification of the genus Thermoanaerobacter: taxonomic emendations and new combinations. Anaerobe 2026; 0:103027. 🇩🇿
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Göker M. List of changes in taxonomic opinion no. 44. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2026; 76:7140.
  • ❗ Thermoanaerobacter pentosaceus 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 Thermoanaerobacter.
  • 😷 The risk group for Germany has been imported on 2026-08-13. 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 4 times in PubMed until 2026-06-11.

Parent taxon: Thermoanaerobacter Wiegel and Ljungdahl 1982

Assigned by: Tomas AF, Karakashev D, Angelidaki I. Thermoanaerobacter pentosaceus sp. nov., an anaerobic, extremely thermophilic, high ethanol-yielding bacterium isolated from household waste. Int J Syst Evol Microbiol 2013; 63:2396-2404. 🇩🇰

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.790918Copy to clipboardLink copied to clipboard

Record number: 790918

• Previous versions:

  • Version	Date	JSON
    1	2026-03-31