Name: Clostridium stercorarium subsp. thermolacticum (Le Ruyet et al. 1988) Fardeau et al. 2001

Category: Subspecies

Proposed as: comb. nov.

Basonym: Clostridium thermolacticum Le Ruyet et al. 1988

Etymology: ther.mo.lac’ti.cum. N.L. neut. adj. thermolacticum, pertaining to a thermophile producing lactic acid

Gender: neuter

Type strain: ATCC 43739; DSM 2910; TX 41

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X72870 Analyse FASTA

Valid publication: Fardeau ML, Ollivier B, Garcia JL, Patel BK. Transfer of thermobacteroides leptospartum and Clostridium thermolacticum as Clostridium stercorarium subsp. leptospartum subsp. thermolacticum subsp. nov., comb. nov. and C. stercorarium subsp. thermolacticum subsp. nov., comb. nov. Int J Syst Evol Microbiol 2001; 51:1127-1131.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 51, part 3 of the IJSEM. Int J Syst Evol Microbiol 2001; 51:1231-1233.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Thermoclostridium stercorarium subsp. thermolacticum (Le Ruyet et al. 1988) Zhang et al. 2018

Risk group: 1

• Synonyms:

  • Name	Kind
    Clostridium thermolacticum Le Ruyet et al. 1988	homotypic synonym, validly published under the ICNP, distinct rank
    Thermoclostridium stercorarium subsp. thermolacticum (Le Ruyet et al. 1988) Zhang et al. 2018	homotypic synonym, validly published under the ICNP

• Notes:
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • ❗ Clostridium stercorarium subsp. thermolacticum is the correct name instead if this subspecies is regarded as a separate subspecies (i.e., if its nomenclatural type is not assigned to another subspecies whose name is validly published, legitimate and not rejected and has priority) within a separate species Clostridium stercorarium within a separate genus Clostridium.
  • 😷 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 Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🧍 According to Rules 27(3) and 30, this name is not validly published because the effective publication makes no reference to the deposit of the type strain in any publicly accessible service collection, but deposits in at least two recognized culture collections in different countries are documented. According to the Judicial Opinion 81, Clostridium stercorarium subsp. thermolacticum (Le Ruyet et al. 1988) Fardeau et al. 2001 is to be considered to be validly published. Publication: Euzeby JP, Tindall BJ. Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an opinion. Int J Syst Evol Microbiol 2004; 54:293-301.
  • 🧍 In the paper by Fardeau et al. 2001, the basonym is incorrectly cited as Clostridium thermolacticum Le Ruyet et al. 1985 (sic). Publication: Judicial Commission. Judicial Opinion No. 81. Int J Syst Evol Microbiol 2008; 58:1755-1763.

Parent taxon: Clostridium stercorarium Madden 1983

Assigned by: Fardeau ML, Ollivier B, Garcia JL, Patel BK. Transfer of thermobacteroides leptospartum and Clostridium thermolacticum as Clostridium stercorarium subsp. leptospartum subsp. thermolacticum subsp. nov., comb. nov. and C. stercorarium subsp. thermolacticum subsp. nov., comb. nov. Int J Syst Evol Microbiol 2001; 51:1127-1131.

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Record number: 774990