Name: Pseudolactococcus laudensis (Meucci et al. 2015) Abe et al. 2025

Category: Species

Proposed as: comb. nov.

Basonym: Lactococcus laudensis Meucci et al. 2015

Etymology: lau.den’sis. M.L. masc. adj. laudensis, pertaining to Lodi (Italy), named Laus Pompeia in Roman times, where the species was isolated

Pronunciation, gender: la͡u-DEN-sis, masculine

Type strain: 4195; DSM 28961; JCM 31965; LMG 28353

Conduct genome-based taxonomy at

16S rRNA gene: KJ394457 Analyse FASTA

Valid publication: Abe K, Yuki M, Imagawa Y, Hisatomi A, Ohkuma M, Sakamoto M, Noda S. Genome-based reclassification of the genus Lactococcus and two novel species Pseudolactococcus yaeyamensis gen. nov., sp. nov. and Lactovum odontotermitis sp. nov. isolated from the gut of termites. Int J Syst Evol Microbiol 2025; 75:6803.

IJSEM list: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 75, part 6 of the IJSEM. Int J Syst Evol Microbiol 2025; 75:6862.

Nomenclatural status: validly published under the ICNP

Taxonomic status: orphaned species (and explicitly recommended for medical use)

• Synonyms:

  • Name	Kind
    Lactococcus laudensis Meucci et al. 2015	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Pseudolactococcus laudensis 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 Pseudolactococcus.
  • 🎓 Name mentioned 0 times in PubMed until 2025-06-10.
  • 🙆 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 the genus.

Parent taxon: Pseudolactococcus Abe et al. 2025

Assigned by: Abe K, Yuki M, Imagawa Y, Hisatomi A, Ohkuma M, Sakamoto M, Noda S. Genome-based reclassification of the genus Lactococcus and two novel species Pseudolactococcus yaeyamensis gen. nov., sp. nov. and Lactovum odontotermitis sp. nov. isolated from the gut of termites. Int J Syst Evol Microbiol 2025; 75:6803.

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Record number: 65870