Name: Propionibacterium propionicus (Buchanan and Pine 1962) Charfreitag et al. 1988

Category: Species

Proposed as: comb. nov.

Basonym: "Actinomyces propionicus" Buchanan and Pine 1962

Pronunciation (Latin), gender: … pro-pi-O-ni-kus, neuter

Type strain: ATCC 14157; CCUG 4939; CIP 101941; DSM 43307; IFO 14587; JCM 5830; NBRC 14587; NCTC 12967; VKM Ac-1449

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ315953 Analyse FASTA

Valid publication: Charfreitag O, Collins MD, Stackebrandt E. Reclassification of Arachnia propionica as Propionibacterium propionicus comb. nov. Int. J. Syst. Bacteriol. 1988; 38:354-357. 🇩🇪

Nomenclatural status: inaccurate spelling

Taxonomic status: misspelling (and not recommended for medical use)

Correct name: Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988

• Synonyms:

  • Name	Kind
    Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Pseudopropionibacterium propionicum (Buchanan and Pine 1962) Scholz and Kilian 2016	homotypic synonym, validly published under the ICNP, illegitimate name
    "Actinomyces propionicus" Buchanan and Pine 1962	homotypic synonym, not validly published, basonym of name in Approved Lists
    Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988	corrected spelling of name, validly published under the ICNP

• Notes:
  • 😷 The taxon name shown here has no assigned risk group, but is the original uncorrected spelling of Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988, which has a risk group (Belgium) above 1. These are therefore two spellings of the same name that should be treated identically for practical purposes. — The taxon name shown here has no assigned risk group, but is the original uncorrected spelling of Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988, which has a risk group (Canada) above 1. These are therefore two spellings of the same name that should be treated identically for practical purposes. — The taxon name shown here has no assigned risk group, but is the original uncorrected spelling of Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988, which has a risk group (Swiss Confederation) above 1. These are therefore two spellings of the same name that should be treated identically for practical purposes. — The taxon name shown here has no assigned risk group, but is the original uncorrected spelling of Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988, which has a risk group (Germany) above 1. These are therefore two spellings of the same name that should be treated identically for practical purposes.
  • 🎓 Name mentioned 7 times in PubMed until 2025-06-04.
  • 🙅 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: Propionibacterium Orla-Jensen 1909 (Approved Lists 1980)

Assigned by: Charfreitag O, Collins MD, Stackebrandt E. Reclassification of Arachnia propionica as Propionibacterium propionicus comb. nov. Int. J. Syst. Bacteriol. 1988; 38:354-357. 🇩🇪

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Record number: 784696