Name: Flexibacter roseolus Lewin 1969 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: ro.se’o.lus. L. masc. adj. roseus, rose-colored; L. masc. suff. -olus, diminutive ending; N.L. masc. adj. roseolus, intended to mean with a rosy tinge

Gender: masculine

Type strain: ATCC 23088; CIP 106406; DSM 9546; IFO 16707; LMG 13856; NBRC 16707

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB078063 Analyse FASTA

Effective publication: Lewin RA. A classification of flexibacteria. J Gen Microbiol 1969; 58:189-206.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Hugenholtzia roseola (Lewin 1969) Hahnke et al. 2017

Risk group: 1

• Synonyms:

  • Name	Kind
    Hugenholtzia roseola (Lewin 1969) Hahnke et al. 2017	homotypic synonym, validly published under the ICNP

• 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:
  • ❗ Flexibacter roseolus 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 Flexibacter.
  • 😷 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 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 2 times in PubMed until 2024-03-27.

Parent taxon: Flexibacter Soriano 1945 (Approved Lists 1980)

Assigned by: Lewin RA. A classification of flexibacteria. J Gen Microbiol 1969; 58:189-206.

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Record number: 776298