Name: Lactococcus carnosus Hilgarth et al. 2020

Category: Species

Proposed as: sp. nov.

Etymology: car.no’sus. L. masc. adj. carnosus, pertaining to flesh

Pronunciation, gender: kar-NO-sus, masculine

Type strain: CECT 30115; DSM 111016; TMW 2.1612

Conduct genome-based taxonomy at

16S rRNA gene: MT772277 Analyse FASTA

Valid publication: Hilgarth M, Werum V, Vogel RF. Lactococcus carnosus sp. nov. and Lactococcus paracarnosus sp. nov., two novel species isolated from modified-atmosphere packaged beef steaks. Int J Syst Evol Microbiol 2020; 70:5832-5840.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 11 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:4645.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Pseudolactococcus carnosus (Hilgarth et al. 2020) Abe et al. 2025

• Synonyms:

  • Name	Kind
    Pseudolactococcus carnosus (Hilgarth et al. 2020) Abe et al. 2025	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Lactococcus carnosus 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 Lactococcus.
  • 🎓 Name mentioned 4 times in PubMed until 2025-06-04.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.

Parent taxon: Lactococcus Schleifer et al. 1986

Assigned by: Hilgarth M, Werum V, Vogel RF. Lactococcus carnosus sp. nov. and Lactococcus paracarnosus sp. nov., two novel species isolated from modified-atmosphere packaged beef steaks. Int J Syst Evol Microbiol 2020; 70:5832-5840.

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Record number: 14605