Species ***Clostridium* *pacaense***

Name: Clostridium pacaense Hosny et al. 2025

Category: Species

Proposed as: sp. nov.

Etymology: pa.ca.en’se. N.L. neut. adj. pacaense, ‘of PACA, ’ the abbreviation of Provence Alpes Cote d’Azur, the French area where the strain was isolated [probably better: pacense]

Pronunciation (Latin), gender: … pa-ka-EN-se, neuter

Type strain: CCUG 71489; CSUR P3100; Marseille P3100

Conduct genome-based taxonomy at

16S rRNA gene: LT799004 Analyse FASTA

Effective publication: Hosny M, Abdallah RA, Bou Khalil J, Fontanini A, Baptiste E, Armstrong N, La Scola B. Clostridium pacaense: a new species within the genus Clostridium. New Microbes New Infect 2019; 28:6-10. 🇫🇷

IJSEM list: Oren A, Göker M. Validation list no. 225. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2025; 75:6863.

Nomenclatural status: validly published under the ICNP

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

Synonyms:

Name	Kind
"Lachnoclostridium pacaense" Pham et al. 2017	homotypic synonym, not validly published

Notes:
- 🎓 Name mentioned 1 time in PubMed until 2025-10-21.
- 🙆 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 pathogenicity of the species itself.

Parent taxon: Clostridium Prazmowski 1880 (Approved Lists 1980)

Assigned by: Hosny M, Abdallah RA, Bou Khalil J, Fontanini A, Baptiste E, Armstrong N, La Scola B. Clostridium pacaense: a new species within the genus Clostridium. New Microbes New Infect 2019; 28:6-10. 🇫🇷

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Record number: 67939

This LPSN page was printed on 2026-03-09 03:19:17

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Species Clostridium pacaense

Species ***Clostridium* *pacaense***