Species Chromatium purpuratum

Name: Chromatium purpuratum Imhoff and Trüper 1980

Category, proposed as: species, sp. nov.

Etymology: pur.pu.ra’tum. L. neut. adj. purpuratum, clad in purple, dressed in purple

Pronunciation (Latin), gender: k^hro-MA-ti-um pur-pu-RA-tum, neuter

Type strain: 984; BN 5500; DSM 1591

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: EU850807 Analyse FASTA

Effective publication: Imhoff JF, Trüper HG. Chromatium purpuratum, sp. nov., a new species of the Chromatiaceae. Zentralbl. Bakteriol. Parasitenkd. Infektionskr. Hyg. Abt. 1 Orig. Reihe C 1980; 1:61-69. 🇩🇪

IJSEM list: Anonymous. Validation list no. 4. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1980; 30:601.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Marichromatium purpuratum (Imhoff and Trüper 1980) Imhoff et al. 1998

Risk group: 1

• Synonyms:

  • Name	Kind
    Marichromatium purpuratum (Imhoff and Trüper 1980) Imhoff et al. 1998	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Chromatium purpuratum 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 Chromatium.
  • 😷 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 11 times in PubMed until 2026-06-11.

Parent taxon: Chromatium Perty 1852 (Approved Lists 1980)

Assigned by: Imhoff JF, Trüper HG. Chromatium purpuratum, sp. nov., a new species of the Chromatiaceae. Zentralbl. Bakteriol. Parasitenkd. Infektionskr. Hyg. Abt. 1 Orig. Reihe C 1980; 1:61-69. 🇩🇪

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Record number: 774685