Name: Arachnia rubra (Saito et al. 2018) Tindall 2019

Category: Species

Proposed as: comb. nov.

Basonym: Pseudopropionibacterium rubrum Saito et al. 2018

Etymology: ru’bra. L. fem. adj. rubra, red

Pronunciation (Latin), gender: a-RAK^H-ni-a RU-bra, feminine

Type strain: DSM 100122; JCM 31317; SK-1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: LC002971 Analyse FASTA

Valid publication: Tindall BJ. Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980), Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988 and Pseudopropionibacterium propionicum (Buchanan and Pine 1962) Scholz and Kilian 2016 and the nomenclatural consequences of changes in the taxonomy of the genus Propionibacterium. Int J Syst Evol Microbiol 2019; 69:2612-2615. 🇩🇪

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 69, part 8 of the IJSEM. Int J Syst Evol Microbiol 2019; 69:3315-3317.

Nomenclatural status: validly published under the ICNP

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

• Synonyms:

  • Name	Kind
    Pseudopropionibacterium rubrum Saito et al. 2018	homotypic synonym, validly published under the ICNP, illegitimate name

• Notes:
  • 🎓 Name mentioned 4 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 other species in the genus.

Parent taxon: Arachnia Pine and Georg 1969 (Approved Lists 1980)

Assigned by: Tindall BJ. Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980), Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988 and Pseudopropionibacterium propionicum (Buchanan and Pine 1962) Scholz and Kilian 2016 and the nomenclatural consequences of changes in the taxonomy of the genus Propionibacterium. Int J Syst Evol Microbiol 2019; 69:2612-2615. 🇩🇪

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Record number: 5207