Name: Lactobacillus delbrueckii subsp. lactis (Orla-Jensen 1919) Weiss et al. 1984

Category: Subspecies

Proposed as: comb. nov.

Basonym: "Thermobacterium lactis" Orla-Jensen 1919

Etymology: lac’tis. L. gen. neut. n. lactis, of milk

Gender: masculine

Type strain: ATCC 12315; CCUG 31454; CIP 101028; DSM 20072; JCM 1248; LMG 7942; NBIMCC 1012; NBRC 102622; NRRL B-4525

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M58823 Analyse FASTA

Effective publication: Weiss N, Schillinger U, Kandler O. Lactobacillus lactis, Lactobacillus leichmannii and Lactobacillus bulgaricus, Subjective Synonyms of Lactobacillus delbrueckii, and Description of Lactobacillus delbrueckii subsp. lactis comb. nov. and Lactobacillus delbrueckii subsp. bulgaricus comb. nov. Syst Appl Microbiol 1983; 4:552-557.

IJSEM list: Anonymous. Validation list no. 14. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1984; 34:270-271.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    "Thermobacterium lactis" Orla-Jensen 1919	homotypic synonym, not validly published, basonym of name in Approved Lists, distinct rank
    Lactobacillus lactis (Orla-Jensen 1919) Bergey et al. 1934 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP, distinct rank

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.21592 (N = 2).
  • 😷 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. — 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.

Parent taxon: Lactobacillus delbrueckii (Leichmann 1896) Beijerinck 1901 (Approved Lists 1980)

Assigned by: Weiss N, Schillinger U, Kandler O. Lactobacillus lactis, Lactobacillus leichmannii and Lactobacillus bulgaricus, Subjective Synonyms of Lactobacillus delbrueckii, and Description of Lactobacillus delbrueckii subsp. lactis comb. nov. and Lactobacillus delbrueckii subsp. bulgaricus comb. nov. Syst Appl Microbiol 1983; 4:552-557.

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Record number: 777295