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

Gender: neuter

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

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AY148470 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

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

• 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.
  • 🧍 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