Species Cytophaga diffluens

Name: Cytophaga diffluens (ex Stanier 1940) Reichenbach 1989

Category, proposed as: species, sp. nov., nom. rev.

Etymology: dif’flu.ens. L. fem. part. adj. diffluens, flowing away

Pronunciation (Latin), gender: ky-TO-p^ha-ga DIF-flu-ens, feminine

Type strain: ATCC 49458; B-1 Lewin; DSM 3658; IFO 15940; JCM 8513; LMG 13036; NBRC 15940; NCIMB 1402; NCMB 1402

Conduct genome-based taxonomy at

16S rRNA gene: AB260929 Analyse FASTA

Effective publication: Reichenbach H. Genus I. Cytophaga Winogradsky 1929, 577AL emend. In: Staley JT, Bryant MP, Pfennig N, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 3, The Williams & Wilkins Co., Baltimore, 1989, p. 2015-2050. 🇩🇪

IJSEM list: Anonymous. Validation list no. 31. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1989; 39:495-497.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Persicobacter diffluens (Reichenbach 1989 ex Stanier 1940) Nakagawa et al. 1997

Risk group: 1

• Synonyms:

  • Name	Kind
    Persicobacter diffluens (Reichenbach 1989 ex Stanier 1940) Nakagawa et al. 1997	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Cytophaga diffluens is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Cytophaga.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1. — 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 0 times in PubMed until 2026-06-11.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of other species in the genus.
  • 🧍 In Validation List no. 31, the page numbers of the paper by Reichenbach 1989 are erroneously cited as 2015-2020 (sic). Publication: Euzeby JP, Kudo T. Corrigenda to the validation lists. Int J Syst Evol Microbiol 2001; 51:1933-1938. 🇫🇷

Parent taxon: Cytophaga Winogradsky 1929 (Approved Lists 1980)

Assigned by: Reichenbach H. Genus I. Cytophaga Winogradsky 1929, 577AL emend. In: Staley JT, Bryant MP, Pfennig N, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 3, The Williams & Wilkins Co., Baltimore, 1989, p. 2015-2050. 🇩🇪

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Record number: 775388