Species Bacteroides praeacutus

Name: Bacteroides praeacutus (Tissier 1908) Holdeman and Moore 1970 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Coccobacillus praeacutus" Tissier 1908

Etymology: prae.a.cu’tus. L. masc. adj. praeacutus, sharpened to a point, sharpened

Pronunciation (Latin), gender: bak-ter-o-I-des pra͡e-a-KU-tus, masculine

Type strain: ATCC 25539; CCUG 27825; LMG 8203; NCIMB 703038; NCTC 11158

Conduct genome-based taxonomy at

16S rRNA gene: X80833 Analyse FASTA

Effective publication: Holdeman LV, Moore WEC. Bacteroides. In: Cato EP, Cummins CS, Holdeman LV, Johnson JL, Moore WEC, Smibert RM, Smith LDS (eds), Outline of Clinical Methods in Anaerobic Bacteriology, 2nd revision, Virginia Polytechnic Institute - Anaerobe Laboratory, Blacksburg/Virginia, 1970, p. 33-44.

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: synonym (and not recommended for medical use)

Correct name: Tissierella praeacuta (Tissier 1908) Collins and Shah 1986

Risk group: 2

Synonyms:

Name	Kind
"Coccobacillus praeacutus" Tissier 1908	homotypic synonym, not validly published, basonym of name in Approved Lists
"Fusobacterium praeacutum" (Tissier 1908) Hoffman 1957	homotypic synonym, not validly published
Clostridium hastiforme MacLennan 1939 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
Tissierella praeacuta (Tissier 1908) Collins and Shah 1986	homotypic synonym, validly published under the ICNP

Notes:
- ⏰ According to Bä et al. (2004), this species is an earlier heterotypic synonym of Clostridium hastiforme MacLennan 1939 (Approved Lists 1980). Publication: Bae JW, Park JR, Chang YH, Rhee SK, Kim BC, Park YH. Clostridium hastiforme is a later synonym of Tissierella praeacuta. Int J Syst Evol Microbiol 2004; 54:947-949. 🇰🇷
- ❗ Bacteroides praeacutus is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Bacteroides.
- 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - 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 = 2. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "ht". — 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 1 time in PubMed until 2026-06-11.
- 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.

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

Assigned by: Holdeman LV, Moore WEC. Bacteroides. In: Cato EP, Cummins CS, Holdeman LV, Johnson JL, Moore WEC, Smibert RM, Smith LDS (eds), Outline of Clinical Methods in Anaerobic Bacteriology, 2nd revision, Virginia Polytechnic Institute - Anaerobe Laboratory, Blacksburg/Virginia, 1970, p. 33-44.

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.783457Link copied to clipboard

Record number: 783457

This LPSN page was printed on 2026-08-14 09:58:20

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Species Bacteroides praeacutus