Name: Atopobium minutum (Hauduroy et al. 1937) Collins and Wallbanks 1993

Category: Species

Proposed as: comb. nov.

Basonym: "Bacteroides minutum" Hauduroy et al. 1937

Etymology: mi.nu’tum. L. neut. part. adj. minutum, little, small

Gender: neuter

Type strain: ATCC 33267; CCUG 31167; DSM 20586; JCM 1118; LMG 9439; NCDO 2751; NCFB 2751; NCIMB 702751; VPI 9428

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M59059 Analyse FASTA

Effective publication: Collins MD, Wallbanks S. Comparative sequence analyses of the 16S rRNA genes of Lactobacillus minutus, Lactobacillus rimae and Streptococcus parvulus: proposal for the creation of a new genus Atopobium. FEMS Microbiol. Lett. 1992; 95:235-240.

IJSEM list: Anonymous. Validation list no. 44. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1993; 43:188-189.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    Lactobacillus minutus (Hauduroy et al. 1937) Moore and Holdeman 1972 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    "Bacteroides minutum" Hauduroy et al. 1937	homotypic synonym, not validly published, basonym of name in Approved Lists

• 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:
  • Nomenclatural type of the genus Atopobium Collins and Wallbanks 1993. Publication: Collins MD, Wallbanks S. Comparative sequence analyses of the 16S rRNA genes of Lactobacillus minutus, Lactobacillus rimae and Streptococcus parvulus: proposal for the creation of a new genus Atopobium. FEMS Microbiol. Lett. 1992; 95:235-240.
  • According to Bartlett et al. (2022), this species is a putative human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.
  • In Validation List no. 44, the basonym of Atopobium minutum is erroneously cited as Lactobacillus minutum (sic). Publication: Euzeby JP, Kudo T. Corrigenda to the validation lists. Int J Syst Evol Microbiol 2001; 51:1933-1938.

Parent taxon: Atopobium Collins and Wallbanks 1993

Assigned by: Collins MD, Wallbanks S. Comparative sequence analyses of the 16S rRNA genes of Lactobacillus minutus, Lactobacillus rimae and Streptococcus parvulus: proposal for the creation of a new genus Atopobium. FEMS Microbiol. Lett. 1992; 95:235-240.

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Record number: 773538