Name: Bifidobacterium longum subsp. infantis (Reuter 1963) Mattarelli et al. 2008

Category: Subspecies

Proposed as: comb. nov.

Basonym: Bifidobacterium infantis Reuter 1963 (Approved Lists 1980)

Etymology: in.fan’tis. L. gen. masc./fem. n. infantis, of an infant

Gender: neuter

Type strain: ATCC 15697; BCRC 14602; BCRC 15416; CCRC 14602; CCRC 15416; CCUG 30512; CCUG 30512 B; CGMCC 1.1853; CGMCC 1.2202; CIP 64.67; DSM 20088; HAMBI 1374; HAMBI 555; HAMBI 574; JCM 1222; LMG 8811; NCAIM B.01821; NCDO 2205; NCFB 2205; NCIMB 702205; NCTC 11817; S12

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KP326372 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

Risk group: 1

• Synonyms:

  • Name	Kind
    Bifidobacterium infantis Reuter 1963 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP, distinct rank

• Notes:
  • 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 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: 787283