Name: Bifidobacterium thermacidophilum subsp. thermacidophilum (Dong et al. 2000) Zhu et al. 2003

Category: Subspecies

Proposed as: subsp. nov.

Basonym: Bifidobacterium thermacidophilum Dong et al. 2000

Etymology: therm.a.ci.do’phi.lum. Gr. fem. adj. thermê, heat; L. neut. adj. acidum, an acid; from L. masc. adj. acidus, sour; N.L. adj. philus -a -um, friend, loving; from Gr. adj. philos -ê -on, loving; N.L. neut. adj. thermacidophilum, heat/acid-loving

Pronunciation, gender: t^herm-a-ki-DO-p^hi-lum, neuter

Type strain: 36; CGMCC 1.2282; DSM 15837; JCM 11165; LMG 21395

See detailed strain information at

Valid publication: Zhu L, Li W, Dong X. Species identification of genus Bifidobacterium based on partial HSP60 gene sequences and proposal of Bifidobacterium thermacidophilum subsp. porcinum subsp. nov. Int J Syst Evol Microbiol 2003; 53:1619-1623.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 53, part 5 of the IJSEM. Int J Syst Evol Microbiol 2004; 54:3-6.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym of its species (division into subspecies abandoned)

Risk group: 1

• Notes:
  • 🙋 This subspecies could be automatically created (rule 40d) by the valid publication of Bifidobacterium thermacidophilum subsp. porcinum Zhu et al. 2003 but an explicit description was also provided. Publication: Zhu L, Li W, Dong X. Species identification of genus Bifidobacterium based on partial HSP60 gene sequences and proposal of Bifidobacterium thermacidophilum subsp. porcinum subsp. nov. Int J Syst Evol Microbiol 2003; 53:1619-1623.
  • ❗ Bifidobacterium thermacidophilum subsp. thermacidophilum 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 Bifidobacterium thermacidophilum within a separate genus Bifidobacterium.
  • 😷 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 the name to be applied to this subspecies. The name is on LoRN because of the recorded risk group of the genus.
  • 🧍 The original authorship, Dong et al. 2000, was corrected according to the new Rule 40d. Publication: Garrity GM, Labeda DP, Oren A. Judicial Commission of the International Committee on Systematics of Prokaryotes. XIIth International (IUMS) Congress of Bacteriology and Applied Microbiology. Minutes of the meetings, 3, 4 and 6 August 2008, Istanbul, Turkey. Int. J. Syst. Evol. Microbiol. 2011; 61:2775-2780.

Parent taxon: Bifidobacterium thermacidophilum Dong et al. 2000

Assigned by: Zhu L, Li W, Dong X. Species identification of genus Bifidobacterium based on partial HSP60 gene sequences and proposal of Bifidobacterium thermacidophilum subsp. porcinum subsp. nov. Int J Syst Evol Microbiol 2003; 53:1619-1623.

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Record number: 774063