Name: Chromatium salexigens Caumette et al. 1989

Category: Species

Proposed as: sp. nov.

Etymology: sal.ex’i.gens. L. masc. n. sal (gen. salis), salt; L. pres. part. exigens, demanding; N.L. neut. part. adj. salexigens, salt-demanding

Pronunciation (Latin), gender: k^hro-MA-ti-um sal-EX-i-gens, neuter

Type strain: 6310; ATCC 49190; DSM 4395; SG 3201

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X98597 Analyse FASTA

Effective publication: Caumette P, Baulaique R, Matheron R. Characterization of Chromatium salexigens sp. nov., a halophilic Chromatiaceae isolated from Mediterranean salinas. Syst. Appl. Microbiol. 1988; 10:288-292. 🇫🇷

IJSEM list: Anonymous. Validation list no. 28. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1989; 39:93-94.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Halochromatium salexigens (Caumette et al. 1989) Imhoff et al. 1998

Risk group: 1

• Synonyms:

  • Name	Kind
    Halochromatium salexigens (Caumette et al. 1989) Imhoff et al. 1998	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Chromatium salexigens 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 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 6 times in PubMed until 2026-06-11.
  • 🧍 On the Validation List no. 28, the page number of the effective publication is erroneously cited as 288-292. Publication: Anonymous. Validation list no. 28. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1989; 39:93-94.

Parent taxon: Chromatium Perty 1852 (Approved Lists 1980)

Assigned by: Caumette P, Baulaique R, Matheron R. Characterization of Chromatium salexigens sp. nov., a halophilic Chromatiaceae isolated from Mediterranean salinas. Syst. Appl. Microbiol. 1988; 10:288-292. 🇫🇷

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Record number: 774686