Species ***Bacteroides* *acidifaciens***

Name: Bacteroides acidifaciens Miyamoto and Itoh 2000

Category: Species

Proposed as: sp. nov.

Etymology: a.ci.di.fa’ci.ens. L. neut. adj. acidum, acid; L. v. facio, produce; N.L. masc. part. adj. acidifaciens, acid-producing

Pronunciation (Latin), gender: bak-ter-o-I-des a-ki-di-FA-ki-ens, masculine

Type strain: A40; DSM 15896; JCM 10556

Conduct genome-based taxonomy at

16S rRNA gene: EU136694 Analyse FASTA

Valid publication: Miyamoto Y, Itoh K. Bacteroides acidifaciens sp. nov., isolated from the caecum of mice. Int J Syst Evol Microbiol 2000; 50:145-148. 🇯🇵

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 50, part 1 of the IJSEM. Int J Syst Evol Microbiol 2000; 50:425-426.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

Emendations:
- García-López et al. 2019 Garcia-Lopez M, Meier-Kolthoff JP, Tindall BJ, Gronow S, Woyke T, Kyrpides NC, Hahnke RL, Goker M. Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes. Front Microbiol 2019; 10:2083. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

Notes:
- 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
- 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 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 166 times in PubMed until 2026-06-11.
- 🙆 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.

Parent taxon: Bacteroides Castellani and Chalmers 1919 (Approved Lists 1980)

Assigned by: Miyamoto Y, Itoh K. Bacteroides acidifaciens sp. nov., isolated from the caecum of mice. Int J Syst Evol Microbiol 2000; 50:145-148. 🇯🇵

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.773927Link copied to clipboard

Record number: 773927

This LPSN page was printed on 2026-08-07 15:00:47

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Species Bacteroides acidifaciens

Species ***Bacteroides* *acidifaciens***