Name: Thermoanaerobacter italicus Kozianowski et al. 1998

Category: Species

Proposed as: sp. nov.

Etymology: i.ta’li.cus. L. masc. adj. italicus, pertaining to Italy, where the organism was isolated

Pronunciation (Latin), gender: t^her-mo-an-a-e-ro-BAK-ter i-TA-li-kus, masculine

Type strain: Ab9; DSM 9252; JCM 16815

Conduct genome-based taxonomy at

16S rRNA gene: AJ250846 Analyse FASTA

Effective publication: Kozianowski G, Canganella F, Rainey FA, Hippe H, Antranikian G. Purification and characterization of thermostable pectate-lyases from a newly isolated thermophilic bacterium, Thermoanaerobacter italicus sp. nov. Extremophiles 1997; 1:171-182. 🇩🇪

IJSEM list: Anonymous. Validation list no. 67. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1998; 48:1083-1084.

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	homotypic 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 pentosaceus Tomás et al. 2013	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

• 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.
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • ❗ Thermoanaerobacter italicus 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 phylogenomic assignment score of this taxon is 0.08429 (N = 10).
  • 😷 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 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 9 times in PubMed until 2026-06-11.

Parent taxon: Thermoanaerobacter Wiegel and Ljungdahl 1982

Assigned by: Kozianowski G, Canganella F, Rainey FA, Hippe H, Antranikian G. Purification and characterization of thermostable pectate-lyases from a newly isolated thermophilic bacterium, Thermoanaerobacter italicus sp. nov. Extremophiles 1997; 1:171-182. 🇩🇪

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.782505Copy to clipboardLink copied to clipboard

Record number: 782505

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