Name: Propionibacterium acnes subsp. acnes (Gilchrist 1900) Dekio et al. 2015

Category: Subspecies

Proposed as: subsp. nov.

Basonym: "Bacillus acnes" Gilchrist 1900

Etymology: ac’nes. Gr. fem. n. akmê, a point, inaccurately transliterated as acne; N.L. gen. fem. n. acnes, of acne

Gender: neuter

Type strain: ATCC 6919; CCUG 1794; CIP 53.117; DSM 1897; JCM 6425; LMG 16711; NCTC 737; NRRL B-4224; VKM Ac-1450

See detailed strain information at

Valid publication: Dekio I, Culak R, Misra R, Gaulton T, Fang M, Sakamoto M, Ohkuma M, Oshima K, Hattori M, Klenk HP, et al. Dissecting the taxonomic heterogeneity within Propionibacterium acnes: proposal for Propionibacterium acnes subsp. acnes subsp. nov. and Propionibacterium acnes subsp. elongatum subsp. nov. Int J Syst Evol Microbiol 2015; 65:4776-4787.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 65, part 12 of the IJSEM. Int J Syst Evol Microbiol 2016; 66:1600-1602.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Cutibacterium acnes subsp. acnes (Gilchrist 1900) Nouioui et al. 2018

Risk group: 2

• Synonyms:

  • Name	Kind
    Cutibacterium acnes subsp. acnes (Gilchrist 1900) Nouioui et al. 2018	homotypic synonym, validly published under the ICNP
    Propionibacterium acnes subsp. acnes (Gilchrist 1900) McDowell et al. 2016	homotypic synonym, validly published under the ICNP, illegitimate name

• Notes:
  • 🙋 This subspecies could be automatically created (rule 40d) by the valid publication of Propionibacterium acnes subsp. elongatum Dekio et al. 2015 but an explicit description was also provided. Publication: Dekio I, Culak R, Misra R, Gaulton T, Fang M, Sakamoto M, Ohkuma M, Oshima K, Hattori M, Klenk HP, et al. Dissecting the taxonomic heterogeneity within Propionibacterium acnes: proposal for Propionibacterium acnes subsp. acnes subsp. nov. and Propionibacterium acnes subsp. elongatum subsp. nov. Int J Syst Evol Microbiol 2015; 65:4776-4787.
  • ❗ Propionibacterium acnes subsp. acnes is the correct name instead if this subspecies is regarded as a separate subspecies (i.e., if its nomenclatural type is not assigned to another subspecies whose name is validly published, legitimate and not rejected and has priority) within a separate species Propionibacterium acnes within a separate genus Propionibacterium.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "TA".

Parent taxon: Propionibacterium acnes (Gilchrist 1900) Douglas and Gunter 1946 (Approved Lists 1980)

Assigned by: Dekio I, Culak R, Misra R, Gaulton T, Fang M, Sakamoto M, Ohkuma M, Oshima K, Hattori M, Klenk HP, et al. Dissecting the taxonomic heterogeneity within Propionibacterium acnes: proposal for Propionibacterium acnes subsp. acnes subsp. nov. and Propionibacterium acnes subsp. elongatum subsp. nov. Int J Syst Evol Microbiol 2015; 65:4776-4787.

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Record number: 793570