Name: Exiguobacterium acetylicum (Levine and Soppeland 1926) Farrow et al. 1994

Category: Species

Proposed as: comb. nov.

Basonym: "Flavobacterium acetylicum" Levine and Soppeland 1926

Etymology: a.ce.ty.li.cum. N.L. neut. n. acetylum, the organic radical acetyl; L. neut. adj. suff. -icum, adjectival suffix used with the sense of belonging to; N.L. neut. adj. acetylicum, pertaining to acetyl

Gender: neuter

Type strain: ATCC 953; CCUG 32630; CIP 82.109; DSM 20416; HAMBI 2009; IFO 12146; JCM 1968; NBRC 12146

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB680246 Analyse FASTA

Valid publication: Farrow JA, Wallbanks S, Collins MD. Phylogenetic interrelationships of round-spore-forming bacilli containing cell walls based on lysine and the non-spore-forming genera Caryophanon, Exiguobacterium, Kurthia, and Planococcus. Int J Syst Bacteriol 1994; 44:74-82.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 44, part 1 of the IJSB. Int J Syst Bacteriol 1994; 44:372.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

• Synonyms:

  • Name	Kind
    "Flavobacterium acetylicum" Levine and Soppeland 1926	homotypic synonym, not validly published, basonym of name in Approved Lists
    Brevibacterium acetylicum (Levine and Soppeland 1926) Breed 1957 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — 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 42 times in PubMed until 2025-06-04.
  • 🙆 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 pathogenicity of the species itself.
  • 🧍 According to Bartlett et al. (2022), this species is a putative 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: Exiguobacterium Collins et al. 1984

Assigned by: Farrow JA, Wallbanks S, Collins MD. Phylogenetic interrelationships of round-spore-forming bacilli containing cell walls based on lysine and the non-spore-forming genera Caryophanon, Exiguobacterium, Kurthia, and Planococcus. Int J Syst Bacteriol 1994; 44:74-82.

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Record number: 776137