Name: Bifidobacterium thermacidophilum subsp. porcinum Zhu et al. 2003

Category: Subspecies

Proposed as: subsp. nov.

Etymology: por.ci’num. L. neut. adj. porcinum, of a hog

Pronunciation, gender: por-KI-num, neuter

Type strain: CGMCC 1.3009; DSM 17755; JCM 16945; LMG 21689; P3-14

Conduct genome-based taxonomy at

16S rRNA gene: LC519870 Analyse FASTA

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 (and not recommended for medical use)

Correct name: Bifidobacterium porcinum (Zhu et al. 2003) Nouioui et al. 2018

Risk group: 1

• Synonyms:

  • Name	Kind
    Bifidobacterium porcinum (Zhu et al. 2003) Nouioui et al. 2018	homotypic synonym, validly published under the ICNP, distinct rank
    "Bifidobacterium thermacidophilum subsp. suis" Kheadr et al. 2007	homotypic synonym, not validly published

• Notes:
  • ❗ Bifidobacterium thermacidophilum subsp. porcinum 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 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 the genus.
  • 🧍 The phylogenetic position of this subspecies was determined in a genome-scale analysis by Nouioui et al. (2018). Publication: Nouioui I, Carro L, Garcia-Lopez M, Meier-Kolthoff JP, Woyke T, Kyrpides NC, Pukall R, Klenk HP, Goodfellow M, Goker M. Genome-Based Taxonomic Classification of the Phylum Actinobacteria. Front Microbiol 2018; 9:2007.

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: 774062