Name: Lactococcus lactis subsp. cremoris (Orla-Jensen 1919) Schleifer et al. 1986

Category: Subspecies

Proposed as: comb. nov.

Basonym: Streptococcus cremoris Orla-Jensen 1919 (Approved Lists 1980)

Etymology: cre.mo’ris. L. masc. n. cremor, the thick juice obtained from animal or vegetable substances, cream; L. gen. masc. n. cremoris, of cream

Gender: masculine

Type strain: ATCC 19257; CCUG 21953; CIP 102301; DSM 20069; HAMBI 1588; JCM 16167; LMG 6897; NBIMCC 8919; NBRC 100676; NCDO 607; NCFB 607; NCIB 8662; NCIMB 8662

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: MK330561 Analyse FASTA

Effective publication: Schleifer KH, Kraus J, Dvorak C, Kilpper-Balz R, Collins MD, Fischer W. Transfer of Streptococcus lactis and related streptococci to the genus Lactococcus gen. nov. Syst. Appl. Microbiol. 1985; 6:183-195.

IJSEM list: Anonymous. Validation list no. 20. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1986; 36:354-356.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Lactococcus cremoris (Orla-Jensen 1919) Li et al. 2021

Risk group: 1

• Synonyms:

  • Name	Kind
    Lactococcus cremoris (Orla-Jensen 1919) Li et al. 2021	homotypic synonym, validly published under the ICNP, distinct rank
    Streptococcus cremoris Orla-Jensen 1919 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP, distinct rank
    Streptococcus lactis subsp. cremoris (Orla-Jensen 1919) Garvie and Farrow 1982	homotypic synonym, validly published under the ICNP

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

Parent taxon: Lactococcus lactis (Lister 1873) Schleifer et al. 1986

Assigned by: Schleifer KH, Kraus J, Dvorak C, Kilpper-Balz R, Collins MD, Fischer W. Transfer of Streptococcus lactis and related streptococci to the genus Lactococcus gen. nov. Syst. Appl. Microbiol. 1985; 6:183-195.

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Record number: 777421