Name: Rhodopseudomonas viridis Drews and Giesbrecht 1966 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: vi’ri.dis. L. fem. adj. viridis, green

Pronunciation (Latin), gender: r^ho-do-pse͡u-DO-mo-nas WI-ri-dis, feminine

Type strain: ATCC 19567; CCUG 30818; CCUG 7830; Dreisam; DSM 133; G. Drews F; HAMBI 1089; LMG 4321; NBRC 102659

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF084495 Analyse FASTA

Effective publication: Drews G, Giesbrecht P. [Rhodopseudomonas viridis, n. sp., a newly isolated, obligate phototrophic bacterium]. Arch Mikrobiol 1966; 53:255-262.

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: Blastochloris viridis (Drews and Giesbrecht 1966) Hiraishi 1997

Risk group: 1

• Synonyms:

  • Name	Kind
    Blastochloris viridis (Drews and Giesbrecht 1966) Hiraishi 1997	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Rhodopseudomonas viridis 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 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 263 times in PubMed until 2026-06-11.

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

Assigned by: Drews G, Giesbrecht P. [Rhodopseudomonas viridis, n. sp., a newly isolated, obligate phototrophic bacterium]. Arch Mikrobiol 1966; 53:255-262.

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Record number: 780514