Name: Rhodopseudomonas rosea Janssen and Harfoot 1991

Category: Species

Proposed as: sp. nov.

Etymology: ro’se.a. L. fem. adj. rosea, rose-colored, pink

Pronunciation (Latin), gender: … RO-se-a, feminine

Type strain: 941; ATCC 49724; DSM 5909; Janssen and Harfoot 941

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: D25313 Analyse FASTA

Valid publication: Janssen PH, Harfoot CG. Rhodopseudomonas rosea sp. nov., a new purple nonsulfur bacterium. Int. J. Syst. Bacteriol. 1991; 41:26-30. 🇦🇺

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 41, part 1 of the IJSB. Int J Syst Bacteriol 1991; 41:457-458.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Rhodoplanes roseus (Janssen and Harfoot 1991) Hiraishi and Ueda 1994

Risk group: 1

• Synonyms:

  • Name	Kind
    Rhodoplanes roseus (Janssen and Harfoot 1991) Hiraishi and Ueda 1994	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Rhodopseudomonas rosea 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 Rhodopseudomonas.
  • 😷 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. — 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 2025-06-04.

Parent taxon: Rhodopseudomonas Czurda and Maresch 1937 (Approved Lists 1980)

Assigned by: Janssen PH, Harfoot CG. Rhodopseudomonas rosea sp. nov., a new purple nonsulfur bacterium. Int. J. Syst. Bacteriol. 1991; 41:26-30. 🇦🇺

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Record number: 780508