Name: Dysgonomonas mossii Lawson et al. 2002

Category: Species

Proposed as: sp. nov.

Etymology: mos’si.i. N.L. gen. masc. n. mossii, of Moss, to honour Claude Wayne Moss, a contemporary American microbiologist, in recognition of his contributions to microbial taxonomy

Pronunciation (Latin), gender: dys-go-NO-mo-nas MOS-si-i, feminine

Type strain: CCUG 43457; CDC F9489; CIP 107079; DSM 22836; JCM 16699

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB548676 Analyse FASTA

Effective publication: Lawson PA, Falsen E, Inganas E, Weyant RS, Collins MD. Dysgonomonas mossii sp. nov., from human sources. Syst Appl Microbiol 2002; 25:194-197. 🇬🇧

IJSEM list: Anonymous. Validation list no. 88. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2002; 52:1915-1916.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

• Emendations:
  • Hahnke et al. 2016 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. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 26. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2017; 67:2081-2086.
    Notes:
    • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project.

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.07794 (N = 7).
  • 😷 The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1, note = "+". — 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 9 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 pathogenicity of the species itself.
  • 🧍 According to Bartlett et al. (2022), this species is an established 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. 🇬🇧

Parent taxon: Dysgonomonas Hofstad et al. 2000

Assigned by: Lawson PA, Falsen E, Inganas E, Weyant RS, Collins MD. Dysgonomonas mossii sp. nov., from human sources. Syst Appl Microbiol 2002; 25:194-197. 🇬🇧

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Record number: 783751