Species ***Clostridium* *methylpentosum***

Name: Clostridium methylpentosum Himelbloom and Canale-Parola 1989

Category: Species

Proposed as: sp. nov.

Etymology: me.thyl.pen.to’sum. N.L. neut. adj. methylpentosum, pertaining to methylpentose

Pronunciation (Latin), gender: … me-t^hyl-pen-TO-sum, neuter

Type strain: ATCC 43829; DSM 5476; R2

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: Y18181 Analyse FASTA

Effective publication: Himelbloom BH, Canale-Parola E. Clostridium methylpentosum sp. nov.: a ring-shaped intestinal bacterium that ferments only methylpentoses and pentoses. Arch Microbiol 1989; 151:287-293.

IJSEM list: Anonymous. Validation list no. 31. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1989; 39:495-497.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

Notes:
- 🧬 The phylogenomic assignment score of this taxon is -0.02860 (N = 32).
- 😷 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 2023-10-29. 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 12 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 Ludwig et al. (2021), this "species is susceptible to being reclassified among Oscillospiraceae and as a new genus". Publication: Ludwig W, Viver T, Westram R, Francisco Gago J, Bustos-Caparros E, Knittel K, Amann R, Rossello-Mora R. Release LTP_12_2020, featuring a new ARB alignment and improved 16S rRNA tree for prokaryotic type strains. Syst Appl Microbiol 2021; 44:126218. 🇪🇸

Parent taxon: Clostridium Prazmowski 1880 (Approved Lists 1980)

Assigned by: Himelbloom BH, Canale-Parola E. Clostridium methylpentosum sp. nov.: a ring-shaped intestinal bacterium that ferments only methylpentoses and pentoses. Arch Microbiol 1989; 151:287-293.

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Record number: 774932

This LPSN page was printed on 2026-02-07 08:10:25

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Species Clostridium methylpentosum

Species ***Clostridium* *methylpentosum***