Name: Chlorobium tepidum Wahlund et al. 1996

Category: Species

Proposed as: sp. nov.

Etymology: te’pi.dum. L. neut. adj. tepidum, moderately warm, lukewarm, tepid (optimum growth temperature 47-48 °C; upper temperature limit for growth about 52 °C)

Pronunciation (Latin), gender: k^hlo-RO-bi-um TE-pi-dum, neuter

Type strain: ATCC 49652; CIP 105973; DSM 12025; NBRC 103806; TLS

Conduct genome-based taxonomy at

16S rRNA gene: M58468 Analyse FASTA

Effective publication: Wahlund TM, Woese CR, Castenholz RW, Madigan MT. A thermophilic green sulfur bacterium from New Zealand hot springs, Chlorobium tepidum sp. nov. Arch. Microbiol. 1991; 156:81-90.

IJSEM list: Anonymous. Validation list no. 59. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1996; 46:1189-1190.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Chlorobaculum tepidum (Wahlund et al. 1996) Imhoff 2003

Risk group: 1

• Synonyms:

  • Name	Kind
    Chlorobaculum tepidum (Wahlund et al. 1996) Imhoff 2003	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Chlorobium 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 Chlorobium.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — 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 207 times in PubMed until 2026-06-11.

Parent taxon: Chlorobium Nadson 1906 (Approved Lists 1980)

Assigned by: Wahlund TM, Woese CR, Castenholz RW, Madigan MT. A thermophilic green sulfur bacterium from New Zealand hot springs, Chlorobium tepidum sp. nov. Arch. Microbiol. 1991; 156:81-90.

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Record number: 774665