Name: Chromatium tepidum Madigan 1986

Category: Species

Proposed as: sp. nov.

Etymology: te’pi.dum. L. neut. adj. tepidum, moderately warm, lukewarm

Gender: neuter

Type strain: ATCC 43061; DSM 3771; MC

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M59150 Analyse FASTA

Valid publication: Madigan MT. Chromatium tepidum sp. nov., a thermophilic photosynthetic bacterium of the family Chromatiaceae. Int. J. Syst. Bacteriol. 1986; 36:222-227.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Thermochromatium tepidum (Madigan 1986) Imhoff et al. 1998

Risk group: 1

• Synonyms:

  • Name	Kind
    Thermochromatium tepidum (Madigan 1986) Imhoff et al. 1998	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Chromatium tepidum 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.
  • 🎓 Name mentioned 14 times in PubMed until 2024-03-28.

Parent taxon: Chromatium Perty 1852 (Approved Lists 1980)

Assigned by: Madigan MT. Chromatium tepidum sp. nov., a thermophilic photosynthetic bacterium of the family Chromatiaceae. Int. J. Syst. Bacteriol. 1986; 36:222-227.

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Record number: 774688