Name: Alistipes onderdonkii Song et al. 2006

Category: Species

Proposed as: sp. nov.

Etymology: on.der.don’ki.i. N.L. gen. masc. n. onderdonkii, of Onderdonk, to honour Andrew B. Onderdonk, an American microbiologist, for his contribution to increased knowledge about intestinal microbiota and anaerobic bacteria

Pronunciation (Latin), gender: a-li-STI-pes on-der-DON-ki-i, masculine

Type strain: ATCC BAA-1178; CCUG 48946; DSM 19147; JCM 16771; WAL 8169

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB554231 Analyse FASTA

Valid publication: Song Y, Kononen E, Rautio M, Liu C, Bryk A, Eerola E, Finegold SM. Alistipes onderdonkii sp. nov. and Alistipes shahii sp. nov., of human origin. Int J Syst Evol Microbiol 2006; 56:1985-1990. 🇺🇸

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 56, part 8 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:2509-2510.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Notes:
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1, note = "+". — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 1, note = "P650 = v". — 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.
  • 🎓 Name mentioned 44 times in PubMed until 2026-06-11.
  • 🙆 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.
  • 🧍 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 (Reading) 2022; 168:0. 🇬🇧
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Hahnke RL, Meier-Kolthoff JP, Garcia-Lopez M, Mukherjee S, Huntemann M, Ivanova NN, Woyke T, Kyrpides NC, Klenk HP, Goker M. Genome-Based Taxonomic Classification of Bacteroidetes. Front Microbiol 2016; 7:2003. 🇩🇪

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 2

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Alistipes onderdonkii subsp. onderdonkii (Song et al. 2006) Sakamoto et al. 2020	validly published under the ICNP	correct name
    Alistipes onderdonkii subsp. vulgaris Sakamoto et al. 2020	validly published under the ICNP	correct name

Parent taxon: Alistipes Rautio et al. 2003

Assigned by: Song Y, Kononen E, Rautio M, Liu C, Bryk A, Eerola E, Finegold SM. Alistipes onderdonkii sp. nov. and Alistipes shahii sp. nov., of human origin. Int J Syst Evol Microbiol 2006; 56:1985-1990. 🇺🇸

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Record number: 785343