Name: Enterocloster bolteae (Song et al. 2003) Haas and Blanchard 2020

Category: Species

Proposed as: comb. nov.

Basonym: Clostridium bolteae Song et al. 2003

Etymology: bol’te.ae. N.L. gen. fem. n. bolteae, of Bolte, to honor the American Ellen Bolte, who first proposed a bacterial role in late-onset autism and stimulated work in this area

Pronunciation, gender: BOL-te-a͡e, masculine

Type strain: 16351; ATCC BAA-613; CCUG 46953; DSM 15670; WAL 16351

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ508452 Analyse FASTA

Valid publication: Haas KN, Blanchard JL. Reclassification of the Clostridium clostridioforme and Clostridium sphenoides clades as Enterocloster gen. nov. and Lacrimispora gen. nov., including reclassification of 15 taxa. Int J Syst Evol Microbiol 2020; 70:23-34.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 1 of the IJSEM. Int J Syst Evol Microbiol 2020; 70:2167-2173.

Nomenclatural status: validly published under the ICNP

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

• Synonyms:

  • Name	Kind
    Clostridium bolteae Song et al. 2003	homotypic synonym, validly published under the ICNP
    "Lachnoclostridium bolteae" (Song et al. 2003) Raymond et al. 2016	homotypic synonym, not validly published

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.20313 (N = 61).
  • 😷 The taxon name shown here has no risk group assigned, but is the homotypic synonym of Clostridium bolteae Song et al. 2003, which has a risk group (Canada) above 1. This may require that the name shown here is not treated as the correct name for practical purposes.
  • 🎓 Name mentioned 17 times in PubMed until 2025-06-04.
  • 🫡 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself. This name is not taxonomically suspended any more in favour of Clostridium bolteae Song et al. 2003. Publication: Song Y, Liu C, Molitoris DR, Tomzynski TJ, Lawson PA, Collins MD, Finegold SM. Clostridium bolteae sp. nov., isolated from human sources. Syst Appl Microbiol 2003; 26:84-89. Euzeby JP. Validation list no. 92. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2003; 53:935-937.

Parent taxon: Enterocloster Haas and Blanchard 2020

Assigned by: Haas KN, Blanchard JL. Reclassification of the Clostridium clostridioforme and Clostridium sphenoides clades as Enterocloster gen. nov. and Lacrimispora gen. nov., including reclassification of 15 taxa. Int J Syst Evol Microbiol 2020; 70:23-34.

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Record number: 5946