Name: Rhodopseudomonas acidophila Pfennig 1969 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: a.ci.do’phi.la. L. neut. adj. acidum, an acid; from L. masc. adj. acidus, sour; N.L. adj. philus -a -um, friend, loving; from Gr. adj. philos -ê -on, loving; N.L. fem. adj. acidophila, acid-loving

Gender: feminine

Type strain: ATCC 25092; CIP 103962; Crystal Lake; DSM 137; LMG 4304; Pfennig 7050

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: FR733696 Analyse FASTA

Effective publication: Pfennig N. Rhodopseudomonas acidophila, sp. n., a new species of the budding purple nonsulfur bacteria. J Bacteriol 1969; 99:597-602.

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: Rhodoblastus acidophilus (Pfennig 1969) Imhoff 2001

Risk group: 1

• Synonyms:

  • Name	Kind
    Rhodoblastus acidophilus (Pfennig 1969) Imhoff 2001	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Rhodopseudomonas acidophila 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.
  • 🎓 Name mentioned 145 times in PubMed until 2024-03-27.

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

Assigned by: Pfennig N. Rhodopseudomonas acidophila, sp. n., a new species of the budding purple nonsulfur bacteria. J Bacteriol 1969; 99:597-602.

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Record number: 780496