Name: Lactobacillus casei subsp. tolerans Abo-Elnaga and Kandler 1965 (Approved Lists 1980)

Category: Subspecies

Proposed as: subsp. nov.

Etymology: to’le.rans. L. masc. part. adj. tolerans, tolerating, means survival during pasteurization of milk

Pronunciation, gender: TO-le-rans, masculine

Type strain: 7/74; ATCC 25599; CCUG 34829; CIP 102994; CIP 103024; DSM 20258; formerly NCDO 2742; formerly NCFB 2774; IFO 15906; JCM 1171; LMG 9191; NBRC 15906; NCDO 2774; NCFB 2774; NCIB 9709; NCIMB 9709

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: D16550 Analyse FASTA

Effective publication: Abo-Elnaga IG, Kandler O. Zur Taxonomie der Gattung Lactobacillus Beijerinck. I. Das Subgenus Streptobacterium Orla-Jensen. Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene, Abteilung II 1965; 119:1-36.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

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

Correct name: Lacticaseibacillus paracasei subsp. tolerans (Abo-Elnaga and Kandler 1965) Zheng et al. 2020

Risk group: 1

• Synonyms:

  • Name	Kind
    Lacticaseibacillus paracasei subsp. tolerans (Abo-Elnaga and Kandler 1965) Zheng et al. 2020	homotypic synonym, validly published under the ICNP
    Lactobacillus paracasei subsp. tolerans (Abo-Elnaga and Kandler 1965) Collins et al. 1989	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Lactobacillus casei subsp. tolerans 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 Lactobacillus casei within a separate genus Lactobacillus.
  • 😷 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.
  • 🙅 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 subspecies. The name is on LoRN because of the recorded risk group of other species in the genus.
  • 🧍 On the Approved Lists of Bacterial Names and on the Approved Lists of Bacterial Names (Amended Edition), the page numbers of the effective publication are cited as 1-39. Publication: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Parent taxon: Lactobacillus casei (Orla-Jensen 1916) Hansen and Lessel 1971 (Approved Lists 1980)

Assigned by: Abo-Elnaga IG, Kandler O. Zur Taxonomie der Gattung Lactobacillus Beijerinck. I. Das Subgenus Streptobacterium Orla-Jensen. Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene, Abteilung II 1965; 119:1-36.

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Record number: 777274