Name: Lactobacillus paracasei subsp. tolerans (Abo-Elnaga and Kandler 1965) Collins et al. 1989

Category: Subspecies

Proposed as: comb. nov.

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

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

Pronunciation (Latin), gender: lak-to-ba-KIL-lus pa-ra-KA-se-i TO-le-rans, masculine

Type strain: 7/74; ATCC 25599; CCUG 34829; CIP 102994; CIP 103024; DSM 20258; formerly NCDO 2742; 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

Valid publication: Collins MD, Phillips BA, Zanoni P. Deoxyribonucleic acid homology studies of Lactobacillus casei, Lactobacillus paracasei sp. nov., subsp. paracasei and subsp. tolerans, and Lactobacillus rhamnosus sp. nov., comb. nov. Int. J. Syst. Bacteriol. 1989; 39:105-108. 🇬🇧

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
    Lactobacillus casei subsp. tolerans Abo-Elnaga and Kandler 1965 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Lacticaseibacillus paracasei subsp. tolerans (Abo-Elnaga and Kandler 1965) Zheng et al. 2020	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Lactobacillus paracasei 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 paracasei 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.

Parent taxon: Lactobacillus paracasei Collins et al. 1989

Assigned by: Collins MD, Phillips BA, Zanoni P. Deoxyribonucleic acid homology studies of Lactobacillus casei, Lactobacillus paracasei sp. nov., subsp. paracasei and subsp. tolerans, and Lactobacillus rhamnosus sp. nov., comb. nov. Int. J. Syst. Bacteriol. 1989; 39:105-108. 🇬🇧

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.777363Copy to clipboardLink copied to clipboard

Record number: 777363

• Previous versions:

  • Version	Date	JSON
    1	2026-03-31