Name: Capnocytophaga leadbetteri Frandsen et al. 2008

Category: Species

Proposed as: sp. nov.

Etymology: le.ad.bet’te.ri. N.L. gen. masc. n. leadbetteri, of Leadbetter, in honour of E. R. Leadbetter, the American microbiologist who (as first author) described and proposed the genus Capnocytophaga

Pronunciation (Latin), gender: … le-ad-BET-te-ri, feminine

Type strain: AHN 8855; CCUG 51857; NCTC 13375

Conduct genome-based taxonomy at

16S rRNA gene: DQ009623 Analyse FASTA

Valid publication: Frandsen EV, Poulsen K, Kononen E, Kilian M. Diversity of Capnocytophaga species in children and description of Capnocytophaga leadbetteri sp. nov. and Capnocytophaga genospecies AHN8471. Int J Syst Evol Microbiol 2008; 58:324-336. 🇩🇰

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 58, part 2 of the IJSEM. Int J Syst Evol Microbiol 2008; 58:1058-1059.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

• Emendations:
  • García-López et al. 2019 Garcia-Lopez M, Meier-Kolthoff JP, Tindall BJ, Gronow S, Woyke T, Kyrpides NC, Hahnke RL, Goker M. Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes. Front Microbiol 2019; 10:2083. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • 😷 The risk group for Germany has been imported on 2023-10-29. 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 12 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 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. 🇬🇧
  • 🧍 In the paper by Frandsen et al. 2008, the authors also propose the description of Capnocytophaga genomospecies AHN8471 (reference strain AHN8471 = CCUG 51856 = NCTC 13374; GenBank/EMBL/DDBJ accession number: DQ009622). This genomospecies is not phenotypically distinguishable from Capnocytophaga ochracea (Prévot et al. 1956) Leadbetter et al. 1982 and Capnocytophaga sputigena Leadbetter et al. 1982. Publication: Frandsen EV, Poulsen K, Kononen E, Kilian M. Diversity of Capnocytophaga species in children and description of Capnocytophaga leadbetteri sp. nov. and Capnocytophaga genospecies AHN8471. Int J Syst Evol Microbiol 2008; 58:324-336. 🇩🇰

Parent taxon: Capnocytophaga Leadbetter et al. 1982

Assigned by: Frandsen EV, Poulsen K, Kononen E, Kilian M. Diversity of Capnocytophaga species in children and description of Capnocytophaga leadbetteri sp. nov. and Capnocytophaga genospecies AHN8471. Int J Syst Evol Microbiol 2008; 58:324-336. 🇩🇰

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Record number: 787207