Name: Peptostreptococcus lactolyticus Li et al. 1992

Category: Species

Proposed as: sp. nov.

Etymology: lac.to.ly.ti.cus. L. neut. n. lac (gen. lactis), milk; N.L. masc. adj. lyticus, able to loose, able to dissolve; from Gr. masc. adj. lytikos, dissolving; N.L. masc. adj. lactolyticus, milk-dissolving

Gender: masculine

Type strain: ATCC 51172; CCUG 31351; CIP 103725; DSM 7456; GIFU 8586; JCM 8140

Conduct genome-based taxonomy at

16S rRNA gene: AB673373 Analyse FASTA

Valid publication: Li N, Hashimoto Y, Adnan S, Miura H, Yamamoto H, Ezaki T. Three new species of the genus Peptostreptococcus isolated from humans: Peptostreptococcus vaginalis sp. nov., Peptostreptococcus lacrimalis sp. nov., and Peptostreptococcus lactolyticus sp. nov. Int J Syst Bacteriol 1992; 42:602-605.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 42, part 4 of the IJSB. Int J Syst Bacteriol 1993; 43:189.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Anaerococcus lactolyticus (Li et al. 1992) Ezaki et al. 2001

Risk group: 2

• Synonyms:

  • Name	Kind
    Anaerococcus lactolyticus (Li et al. 1992) Ezaki et al. 2001	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Peptostreptococcus lactolyticus is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Peptostreptococcus.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1, note = "PIIC". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1, note = "+".
  • 🎓 Name mentioned 1 time 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: Peptostreptococcus Kluyver and van Niel 1936 (Approved Lists 1980)

Assigned by: Li N, Hashimoto Y, Adnan S, Miura H, Yamamoto H, Ezaki T. Three new species of the genus Peptostreptococcus isolated from humans: Peptostreptococcus vaginalis sp. nov., Peptostreptococcus lacrimalis sp. nov., and Peptostreptococcus lactolyticus sp. nov. Int J Syst Bacteriol 1992; 42:602-605.

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Record number: 779387