Name: Pseudopropionibacterium propionicum (Buchanan and Pine 1962) Scholz and Kilian 2016

Category: Species

Proposed as: comb. nov.

Basonym: "Actinomyces propionicus" Buchanan and Pine 1962

Etymology: pro.pi.o’ni.cum. N.L. neut. adj. propionicum, producing propionic acid

Gender: 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: AJ003058 Analyse FASTA

Valid publication: Scholz CF, Kilian M. The natural history of cutaneous propionibacteria, and reclassification of selected species within the genus Propionibacterium to the proposed novel genera Acidipropionibacterium gen. nov., Cutibacterium gen. nov. and Pseudopropionibacterium gen. nov. Int J Syst Evol Microbiol 2016; 66:4422-4432.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 66, part 11 of the IJSEM. Int J Syst Evol Microbiol 2017; 67:179-182.

Nomenclatural status: validly published under the ICNP, illegitimate name

Taxonomic status: synonym

Correct name: Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980)

Risk group: 2

• Synonyms:

  • Name	Kind
    "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	homotypic synonym, validly published under the ICNP
    Propionibacterium propionicus (Buchanan and Pine 1962) Charfreitag et al. 1988	homotypic synonym, inaccurate spelling
    Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Pseudopropionibacterium Scholz and Kilian 2016. Publication: Scholz CF, Kilian M. The natural history of cutaneous propionibacteria, and reclassification of selected species within the genus Propionibacterium to the proposed novel genera Acidipropionibacterium gen. nov., Cutibacterium gen. nov. and Pseudopropionibacterium gen. nov. Int J Syst Evol Microbiol 2016; 66:4422-4432.
  • 😷 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.
  • 🧍 According to Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.

Parent taxon: Pseudopropionibacterium Scholz and Kilian 2016

Assigned by: Scholz CF, Kilian M. The natural history of cutaneous propionibacteria, and reclassification of selected species within the genus Propionibacterium to the proposed novel genera Acidipropionibacterium gen. nov., Cutibacterium gen. nov. and Pseudopropionibacterium gen. nov. Int J Syst Evol Microbiol 2016; 66:4422-4432.

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Record number: 794764