Name: Chloracidobacterium Saini et al. 2026

Category: Genus

Proposed as: gen. nov.

Etymology: Chlor.a.ci.do.bac.te’ri.um. Gr. masc. adj. chlôros, greenish-yellow, pale green; N.L. neut. n. Acidobacterium, a bacterial genus name; N.L. neut. n. Chloracidobacterium, a green Acidobacterium

Gender, pronunciation (Latin): neuter (stem: Chloracidobacteri-), k^hlor-a-ki-do-bak-TE-ri-um

Type species: Chloracidobacterium validum Saini et al. 2026

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Valid publication: 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. 🇩🇪

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    "Chloracidobacterium" Tank and Bryant 2015	homotypic synonym, not validly published
    "Candidatus Chloracidobacterium" Bryant et al. 2007	homotypic synonym, pro-validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the family Chloracidobacteriaceae Saini et al. 2026. Publication: 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. 🇩🇪
  • 🥇 Nomenclatural type of the order Chloracidobacteriales Saini et al. 2026. Publication: 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. 🇩🇪
  • 🧕 Saini et al. (2026) assigned this genus to the order Chloracidobacteriales Saini et al. 2026. Publication: 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. 🇩🇪
  • 🚋 The type species of this genus has alternatively been placed in the genus "Chloracidobacterium" Tank and Bryant 2015. Publication: Saini MK, Sebastian A, Shirotori Y, Soulier NT, Garcia Costas AM, Drautz-Moses DI, Schuster SC, Albert I, Haruta S, Hanada S, et al. Genomic and Phenotypic Characterization of Chloracidobacterium Isolates Provides Evidence for Multiple Species. Front Microbiol 2021; 12:704168. 🇺🇸
  • 🤨 This taxon name is occasionally used in plural form as: "Chloracidobacteria".
  • 🎰 The BRCs most frequently used for deposits in this group are: JCM: 1; DSM: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 1
Number of child taxa with a validly published name, including synonyms: 1
Total number of child taxa: 2

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Candidatus Chloracidobacterium aggregatum" Saini et al. 2026	not validly published	preferred name
    Chloracidobacterium validum Saini et al. 2026	validly published under the ICNP	correct name

Parent taxon: Chloracidobacteriaceae Saini et al. 2026

Assigned by: 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. 🇩🇪

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Record number: 69909