Species ***Clostridium* *spiroforme***

Name: Clostridium spiroforme Kaneuchi et al. 1979 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: spi.ro.for’me. Gr. fem. n. speîra, a coil; L. neut. adj. suff. -forme, of the shape of; N.L. neut. adj. spiroforme, in the shape of a coil

Gender: neuter

Type strain: ATCC 29900; CCUG 46510; CIP 106966; DSM 1552; JCM 1432; NCTC 11211; VPI C28-23-1A

Conduct genome-based taxonomy at

16S rRNA gene: X73441 Analyse FASTA

Effective publication: Kaneuchi C, Miyazato T, Shinjo T, Mitsuoka T. Taxonomic study of helically coiled, sporeforming anaerobes isolated from the intestines of humans and other animals: Clostridium cocleatum sp. nov. and Costridium spiroforme sp. nov. International Journal of Systematic Bacteriology 1979; 29:1-12.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

Synonyms:

Name	Kind
Thomasclavelia spiroformis (Kaneuchi et al. 1979) Lawson et al. 2023	homotypic synonym, validly published under the ICNP

Notes:
- 🧬 The phylogenomic assignment score of this taxon is -0.01554 (N = 37).
- 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 2 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1, note = "PIIC". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1, note = "+". — 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 62 times in PubMed until 2025-06-04.
- 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.
- 🧍 According to Bartlett et al. (2022), no evidence of human infection was found for this species. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.

Parent taxon: Clostridium Prazmowski 1880 (Approved Lists 1980)

Assigned by: Kaneuchi C, Miyazato T, Shinjo T, Mitsuoka T. Taxonomic study of helically coiled, sporeforming anaerobes isolated from the intestines of humans and other animals: Clostridium cocleatum sp. nov. and Costridium spiroforme sp. nov. International Journal of Systematic Bacteriology 1979; 29:1-12.

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Record number: 774985

This LPSN page was printed on 2025-07-10 17:10:55

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Species Clostridium spiroforme

Species ***Clostridium* *spiroforme***