Name: Pseudolactococcus Abe et al. 2025

Category: Genus

Proposed as: gen. nov.

Etymology: Pseu.do.lac.to.coc’cus. Gr. neut. adj. pseudes, false; N.L. masc. n. Lactococcus, a bacterial genus name; N.L. masc. n. Pseudolactococcus, false Lactococcus

Gender, pronunciation (Latin): masculine (stem: Pseudolactococc-), pse͡u-do-lak-to-KOK-kus

Type species: Pseudolactococcus reticulitermitis (Yuki et al. 2018) Abe et al. 2025

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: 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: synonym

Correct name: Lactococcus Schleifer et al. 1986

• Synonyms:

  • Name	Kind
    Lactococcus Schleifer et al. 1986	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🚂 For the type species of this genus another name is in use, which is affiliated with the genus Lactococcus Schleifer et al. 1986. Publication: Yuki M, Sakamoto M, Nishimura Y, Ohkuma M. Lactococcus reticulitermitis sp. nov., isolated from the gut of the subterranean termite Reticulitermes speratus. Int J Syst Evol Microbiol 2018; 68:596-601. 🇯🇵
  • ❗ Pseudolactococcus is the correct name instead if this genus is regarded as a separate genus (i.e., if its nomenclatural type is not assigned to another genus whose name is validly published, legitimate and not rejected and has priority).
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 11; JCM: 10; CCUG: 5; CECT: 4; LMG: 3; ATCC: 3; CIP: 3; NCIMB: 3; HAMBI: 2; NBRC: 2.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 11
Total number of child taxa: 11

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Pseudolactococcus carnosus (Hilgarth et al. 2020) Abe et al. 2025	validly published under the ICNP	orphaned species
    Pseudolactococcus chungangensis (Cho et al. 2008) Abe et al. 2025	validly published under the ICNP	orphaned species
    Pseudolactococcus hodotermopsidis (Noda et al. 2020) Abe et al. 2025	validly published under the ICNP	orphaned species
    Pseudolactococcus insecticola (Noda et al. 2020) Abe et al. 2025	validly published under the ICNP	orphaned species
    Pseudolactococcus laudensis (Meucci et al. 2015) Abe et al. 2025	validly published under the ICNP	orphaned species
    Pseudolactococcus paracarnosus (Hilgarth et al. 2020) Abe et al. 2025	validly published under the ICNP	orphaned species
    Pseudolactococcus piscium (Williams et al. 1990) Abe et al. 2025	validly published under the ICNP	orphaned species
    Pseudolactococcus plantarum (Collins et al. 1984) Abe et al. 2025	validly published under the ICNP	orphaned species
    Pseudolactococcus raffinolactis (Orla-Jensen and Hansen 1932) Abe et al. 2025	validly published under the ICNP	orphaned species
    Pseudolactococcus reticulitermitis (Yuki et al. 2018) Abe et al. 2025	validly published under the ICNP	synonym
    Pseudolactococcus yaeyamensis Abe et al. 2025	validly published under the ICNP	orphaned species

Parent taxon: Streptococcaceae Deibel and Seeley 1974 (Approved Lists 1980)

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: 65847