Name: "Candidatus Chloracidobacterium thermophilum" Bryant et al. 2007

Category: Species

Proposed as: Candidatus

Etymology: ther.mo’phi.lum. N.L. neut. adj. suff. -philum, loving; N.L. neut. adj. thermophilum, hot loving

Pronunciation (Latin), gender: … t^her-MO-p^hi-lum, neuter

Nomenclatural type: ATCC BAA-2647; B; JCM 30199

Conduct genome-based taxonomy at

16S rRNA gene: CP072632 Analyse FASTA

Effective publication: Bryant DA, Costas AM, Maresca JA, Chew AG, Klatt CG, Bateson MM, Tallon LJ, Hostetler J, Nelson WC, Heidelberg JF, et al. Candidatus Chloracidobacterium thermophilum: an aerobic phototrophic Acidobacterium. Science 2007; 317:523-526. 🇺🇸

IJSEM list: Oren A, Garrity GM, Parker CT, Chuvochina M, Trujillo ME. Candidatus list no. 1. Lists of names of prokaryotic Candidatus taxa. Int J Syst Evol Microbiol 2020; 70:3956-4042.

Nomenclatural status: not validly published

Nomenclatural pro-status: pro-validly published under the ICNP

Taxonomic status: pro-correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    "Chloracidobacterium thermophilum" Tank and Bryant 2015	homotypic synonym, not validly published

• Emendations:
  • Saini et al. 2026 Saini MK, Kuzyk SB, Villena-Alemany C, Kirstein S, Wolf J, Neumann-Schaal M, Haruta S, Hanada S, Koblizek M, Thiel V, et al. Chloracidobacterium validum sp. nov., a thermophilic chlorophotoheterotrophic bacterium of the phylum Acidobacteriota from an alkaline hot spring microbial mat, represents Chloracidobacterium gen. nov., Chloracidobacteriaceae fam. nov. and Chloracidobacteriales ord. nov. Int J Syst Evol Microbiol 2026; 76:7003. 🇩🇪

• Notes:
  • 🥇 Nomenclatural type of the genus "Candidatus Chloracidobacterium" Bryant et al. 2007. Publication: Bryant DA, Costas AM, Maresca JA, Chew AG, Klatt CG, Bateson MM, Tallon LJ, Hostetler J, Nelson WC, Heidelberg JF, et al. Candidatus Chloracidobacterium thermophilum: an aerobic phototrophic Acidobacterium. Science 2007; 317:523-526. 🇺🇸
  • 😷 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.
  • 🧍 This species was confirmed as the type species of its monotypic genus in Appendix 1 of Candidatus List No. 6.

Parent taxon: "Candidatus Chloracidobacterium" Bryant et al. 2007

Assigned by: Bryant DA, Costas AM, Maresca JA, Chew AG, Klatt CG, Bateson MM, Tallon LJ, Hostetler J, Nelson WC, Heidelberg JF, et al. Candidatus Chloracidobacterium thermophilum: an aerobic phototrophic Acidobacterium. Science 2007; 317:523-526. 🇺🇸

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Record number: 43074