Name: Lactococcus laudensis Meucci et al. 2015

Category: Species

Proposed as: sp. nov.

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: Meucci A, Zago M, Rossetti L, Fornasari ME, Bonvini B, Tidona F, Povolo M, Contarini G, Carminati D, Giraffa G. Lactococcus hircilactis sp. nov. and Lactococcus laudensis sp. nov., isolated from milk. Int J Syst Evol Microbiol 2015; 65:2091-2096.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 65, part 7 of the IJSEM. Int J Syst Evol Microbiol 2015; 65:3233-3234.

Nomenclatural status: validly published under the ICNP

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

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

Risk group: 1

• Synonyms:

  • Name	Kind
    Pseudolactococcus laudensis (Meucci et al. 2015) Abe et al. 2025	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Lactococcus 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 Lactococcus.
  • 😷 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 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: Meucci A, Zago M, Rossetti L, Fornasari ME, Bonvini B, Tidona F, Povolo M, Contarini G, Carminati D, Giraffa G. Lactococcus hircilactis sp. nov. and Lactococcus laudensis sp. nov., isolated from milk. Int J Syst Evol Microbiol 2015; 65:2091-2096.

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Record number: 792920