Name: Rhodospirillum tenue Pfennig 1969 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: te’nu.e. L. neut. adj. tenue, slender, thin

Gender: neuter

Type strain: 2761; ATCC 19137; ATCC 25093; DSM 109; Grunenplan; LMG 4367; NBRC 102472

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: D16208 Analyse FASTA

Effective publication: Pfennig N. Rhodospirillum tenue sp. n., a new species of the purple nonsulfur bacteria. J Bacteriol 1969; 99:619-620.

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: Rhodocyclus tenuis (Pfennig 1969) Imhoff et al. 1984

Risk group: 1

• Synonyms:

  • Name	Kind
    Rhodocyclus tenuis (Pfennig 1969) Imhoff et al. 1984	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Rhodospirillum tenue 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 Rhodospirillum.
  • 😷 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 22 times in PubMed until 2024-03-27.
  • 🧍 On the Approved Lists of Bacterial Names and on the Approved Lists of Bacterial Names (Amended Edition), the page numbers of the paper by Pfennig are erroneously cited as 619-920. Publication: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Parent taxon: Rhodospirillum Molisch 1907 (Approved Lists 1980)

Assigned by: Pfennig N. Rhodospirillum tenue sp. n., a new species of the purple nonsulfur bacteria. J Bacteriol 1969; 99:619-620.

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Record number: 780524