Name: Bifidobacterium longum subsp. suis (Matteuzzi et al. 1971) Mattarelli et al. 2008

Category: Subspecies

Proposed as: comb. nov.

Basonym: Bifidobacterium suis Matteuzzi et al. 1971 (Approved Lists 1980)

Etymology: su’is. L. masc./fem. n. sus, pig; L. gen. masc./fem. n. suis, of a pig

Pronunciation, gender: SU-is, neuter

Type strain: ATCC 27533; BCRC 14671; CCRC 14671; CCUG 35234; CIP 103377; DSM 20211; HAMBI 1381; JCM 1269; LMG 11598; Su859

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M58743 Analyse FASTA

Valid publication: Mattarelli P, Bonaparte C, Pot B, Biavati B. Proposal to reclassify the three biotypes of Bifidobacterium longum as three subspecies: Bifidobacterium longum subsp. longum subsp. nov., Bifidobacterium longum subsp. infantis comb. nov. and Bifidobacterium longum subsp. suis comb. nov. Int J Syst Evol Microbiol 2008; 58:767-772. 🇮🇹

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 58, part 4 of the IJSEM. Int J Syst Evol Microbiol 2008; 58:1513-1514.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Synonyms:

  • Name	Kind
    Bifidobacterium suis Matteuzzi et al. 1971 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP, distinct rank

• Emendations:
  • Nouioui et al. 2018 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. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 29. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:13-32.

• Notes:
  • 😷 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 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.

Parent taxon: Bifidobacterium longum Reuter 1963 (Approved Lists 1980)

Assigned by: Mattarelli P, Bonaparte C, Pot B, Biavati B. Proposal to reclassify the three biotypes of Bifidobacterium longum as three subspecies: Bifidobacterium longum subsp. longum subsp. nov., Bifidobacterium longum subsp. infantis comb. nov. and Bifidobacterium longum subsp. suis comb. nov. Int J Syst Evol Microbiol 2008; 58:767-772. 🇮🇹

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Record number: 787284