Name: "Chloroflexi" Garrity and Holt 2001

Category: Phylum

Proposed as: phyl. nov.

Etymology: N.L. neut. pl. n. Chloroflexi, the phylum of the genus Chloroflexus

Type order: Chloroflexales Gupta et al. 2013

Original publication: Garrity GM, Holt JG. Phylum BVI. Chloroflexi phy. nov. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 1 (The Archaea and the Deeply Branching and Phototrophic Bacteria), Springer, New York, 2001, p. 427-446.

IJSEM list: Anonymous. Validation list no. 85. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2002; 52:685-690.

Nomenclatural status: not validly published

Correct name: Chloroflexota Oren and Garrity 2021

• Synonyms:

  • Name	Kind
    "Chlorobacteria" Cavalier-Smith 2006	homotypic synonym, not validly published
    "Eobacteria" Cavalier-Smith 2002	homotypic synonym, not validly published
    "Chloroflexota" Whitman et al. 2018	heterotypic synonym, not validly published
    "Chloroflexaeota" Oren et al. 2015	heterotypic synonym, not validly published
    Chloroflexota Oren and Garrity 2021	heterotypic synonym, validly published under the ICNP

• Emendations:
  • Hugenholtz and Stackebrandt 2004 Hugenholtz P, Stackebrandt E. Reclassification of Sphaerobacter thermophilus from the subclass Sphaerobacteridae in the phylum Actinobacteria to the class Thermomicrobia (emended description) in the phylum Chloroflexi (emended description). Int J Syst Evol Microbiol 2004; 54:2049-2051.
    Notes:
    • Cavalier-Smith and Chao (2020) cited the name as Chloroflexi Garrity and Holt 2002 (sic).

• Notes:
  • Cavalier-Smith and Chao (2020) assigned this phylum to the subkingdom "Chlorobacteria" (Cavalier-Smith 1992) Cavalier-Smith 2020. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753.
  • Boone et al. (2001) assigned the class "Chloroflexi" to this phylum. Publication: Garrity GM, Holt JG. Phylum BVI. Chloroflexi phy. nov. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 1 (The Archaea and the Deeply Branching and Phototrophic Bacteria), Springer, New York, 2001, p. 427-446.
  • Cavalier-Smith and Chao (2020) assigned the subphylum "Chloroflexotia" Cavalier-Smith 2020 to this phylum. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753.
  • Cavalier-Smith and Chao (2020) assigned the subphylum "Dehalococcoidotia" Cavalier-Smith 2020 to this phylum. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753.
  • Cavalier-Smith and Chao (2020) assigned the subphylum "Caldilineotia" Cavalier-Smith 2020 to this phylum. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753.
  • Hugenholtz and Stackebrandt (2004) assigned the class Thermomicrobia Garrity and Holt 2002 to this phylum. Publication: Hugenholtz P, Stackebrandt E. Reclassification of Sphaerobacter thermophilus from the subclass Sphaerobacteridae in the phylum Actinobacteria to the class Thermomicrobia (emended description) in the phylum Chloroflexi (emended description). Int J Syst Evol Microbiol 2004; 54:2049-2051.
  • Kochetkova et al. (2020) assigned the order Tepidiformales Kochetkova et al. 2020 to this phylum. Publication: Kochetkova TV, Zayulina KS, Zhigarkov VS, Minaev NV, Chichkov BN, Novikov AA, Toshchakov SV, Elcheninov AG, Kublanov IV. Tepidiforma bonchosmolovskayae gen. nov., sp. nov., a moderately thermophilic Chloroflexi bacterium from a Chukotka hot spring (Arctic, Russia), representing a novel class, Tepidiformia, which includes the previously uncultivated lineage OLB14. Int J Syst Evol Microbiol 2020; 70:1192-1202.
  • McIlroy et al. (2016) assigned the genus "Candidatus Promineofilum" McIlroy et al. 2016 to this phylum. Publication: McIlroy SJ, Karst SM, Nierychlo M, Dueholm MS, Albertsen M, Kirkegaard RH, Seviour RJ, Nielsen PH. Genomic and in situ investigations of the novel uncultured Chloroflexi associated with 0092 morphotype filamentous bulking in activated sludge. ISME J 2016; 10:2223-2234.
  • This taxon name is occasionally misprinted in some sources as: "Chlmoflexi"; "Chlorofexi"; "Chlorofltxi"; "Choroflexi"; "Cloroflexi".
  • The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • The type order "Chloroflexales" has no standing in bacterial nomenclature. Publication: Gupta RS, Chander P, George S. Phylogenetic framework and molecular signatures for the class Chloroflexi and its different clades; proposal for division of the class Chloroflexia class. nov. [corrected] into the suborder Chloroflexineae subord. nov., consisting of the emended family Oscillochloridaceae and the family Chloroflexaceae fam. nov., and the suborder Roseiflexineae subord. nov., containing the family Roseiflexaceae fam. nov. Antonie Van Leeuwenhoek 2013; 103:99-119.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 8
Total number of child taxa: 14

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Anaerolineae Yamada et al. 2006	validly published under the ICNP	orphaned class
    Ardenticatenia Kawaichi et al. 2013	validly published under the ICNP	orphaned class
    "Candidatus Bathosphaeria" Mehrshad et al. 2018	not validly published
    Caldilineae Yamada et al. 2006	validly published under the ICNP	orphaned class
    Chloroflexi Gupta et al. 2013	orthographic variant	misspelling
    Chloroflexia corrig. Gupta et al. 2013	validly published under the ICNP	orphaned class
    [Chloroflexi, not assigned to class]	artificial parent node of taxa incertae sedis
    Dehalococcoidia Löffler et al. 2013	validly published under the ICNP	orphaned class
    Ktedobacteria Cavaletti et al. 2007	orthographic variant	misspelling
    Ktedonobacteria corrig. Cavaletti et al. 2007	validly published under the ICNP	orphaned class
    "Candidatus Limnocylindria" Mehrshad et al. 2018	not validly published
    Tepidiformia Kochetkova et al. 2020	validly published under the ICNP	orphaned class
    Thermoflexia Dodsworth et al. 2014	validly published under the ICNP	orphaned class
    "Candidatus Umbricyclopia" Mehrshad et al. 2018	not validly published

Parent taxon: "Bacteria" Woese et al. 1990

Assigned by: Garrity GM, Holt JG. Phylum BVI. Chloroflexi phy. nov. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 1 (The Archaea and the Deeply Branching and Phototrophic Bacteria), Springer, New York, 2001, p. 427-446.

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Record number: 779