Name: Anaerostipes hadrus (Moore et al. 1976) Allen-Vercoe et al. 2013

Category: Species

Proposed as: comb. nov.

Basonym: Eubacterium hadrum Moore et al. 1976 (Approved Lists 1980)

Etymology: ha.drus. N.L. masc. adj. hadrus, thick, bulky, referring to the relatively large size of the cell; from Gr. neut. adj. hadron

Gender: masculine

Type strain: ATCC 29173; DSM 3319; JCM 9980; VPI B2-52

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: FR749932 Analyse FASTA

Effective publication: Allen-Vercoe E, Daigneault M, White A, Panaccione R, Duncan SH, Flint HJ, O'Neal L, Lawson PA. Anaerostipes hadrus comb. nov., a dominant species within the human colonic microbiota; reclassification of Eubacterium hadrum Moore et al. 1976. Anaerobe 2012; 18:523-529.

IJSEM list: Oren A, Garrity GM. Validation list no. 154. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2013; 63:3931-3934.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Eubacterium hadrum Moore et al. 1976 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.
  • 🧬 The phylogenomic assignment score of this taxon is 0.06485 (N = 64).
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 34 times in PubMed until 2024-03-28.
  • 🧍 According to Bartlett et al. (2022), no evidence of human infection was found for this species. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.

Parent taxon: Anaerostipes Schwiertz et al. 2002

Assigned by: Allen-Vercoe E, Daigneault M, White A, Panaccione R, Duncan SH, Flint HJ, O'Neal L, Lawson PA. Anaerostipes hadrus comb. nov., a dominant species within the human colonic microbiota; reclassification of Eubacterium hadrum Moore et al. 1976. Anaerobe 2012; 18:523-529.

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Record number: 791209