Name: Mitsuokella multacida corrig. (Mitsuoka et al. 1974) Shah and Collins 1983

Category: Species

Proposed as: comb. nov.

Basonym: Bacteroides multiacidus Mitsuoka et al. 1974 (Approved Lists 1980)

Etymology: mult.a.ci.da. L. adj. multus -a -um, many; L. adj. acidus -a -um, sour; N.L. fem. adj. multacida, producing much acid

Gender: feminine

Type strain: ATCC 27723; CCUG 21055; CIP 107116; DSM 20544; JCM 2054; NCTC 10934

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X81878 Analyse FASTA

Effective publication: Shah HN, Collins MD. Reclassification of Bacteroides multiacidus (Mitsuoka, Terada, Watanabe and Uchida) in a new genus Mitsuokella, as Mitsuokella multiacidus comb. nov. Zentralbl. Bakteriol. Parasitenkd. Infektionskr. Hyg. I Abt. Orig. C 1982; 3:491-494.

IJSEM list: Anonymous. Validation list no. 10. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1983; 33:438-440.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    Bacteroides multiacidus Mitsuoka et al. 1974 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Mitsuokella multiacidus (Mitsuoka et al. 1974) Shah and Collins 1983	other spelling of name, inaccurate spelling

• Notes:
  • 🥇 Nomenclatural type of the genus Mitsuokella Shah and Collins 1983. Publication: Shah HN, Collins MD. Reclassification of Bacteroides multiacidus (Mitsuoka, Terada, Watanabe and Uchida) in a new genus Mitsuokella, as Mitsuokella multiacidus comb. nov. Zentralbl. Bakteriol. Parasitenkd. Infektionskr. Hyg. I Abt. Orig. C 1982; 3:491-494.
  • 😷 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 Germany has been imported on 2023-10-29. The full classification is: risk group = 2. — 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 10 times in PubMed until 2024-03-27.
  • 🧍 Nom. corrig.: IJSB 48:1073; Mitsuokella multiacidus (sic). Publication: Euzéby JP. Taxonomic note: necessary correction of specific and subspecific epithets according to Rules 12c and 13b of the International Code of Nomenclature of Bacteria (1990 Revision). Int. J. Syst. Bacteriol. 1998; 48:1073-1075.
  • 🧍 The original spelling of the specific epithet, multiacidus (sic), has been corrected by Euzéby 1998. Publication: Euzéby JP. Taxonomic note: necessary correction of specific and subspecific epithets according to Rules 12c and 13b of the International Code of Nomenclature of Bacteria (1990 Revision). Int. J. Syst. Bacteriol. 1998; 48:1073-1075.

Parent taxon: Mitsuokella Shah and Collins 1983

Assigned by: Shah HN, Collins MD. Reclassification of Bacteroides multiacidus (Mitsuoka, Terada, Watanabe and Uchida) in a new genus Mitsuokella, as Mitsuokella multiacidus comb. nov. Zentralbl. Bakteriol. Parasitenkd. Infektionskr. Hyg. I Abt. Orig. C 1982; 3:491-494.

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Record number: 778274