Name: Chromatium tepidum Madigan 1986

Category: Species

Proposed as: sp. nov.

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

Pronunciation, gender: TE-pi-dum, neuter

Type strain: ATCC 43061; DSM 3771; MC

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. — 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 14 times in PubMed until 2025-06-04.

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