Chromatiales

Chromatiales
Chromatium okenii in the microscope at 600x magnification.
Scientific classification Edit this classification
Domain: Bacteria
Kingdom: Pseudomonadati
Phylum: Pseudomonadota
Class: Gammaproteobacteria
Order: Chromatiales
Imhoff 2005
Type genus
Chromatium
Perty 1852 (Approved Lists 1980)
Families
Synonyms

Ectothiorhodospirales Chuvochina et al. 2024
Granulosicoccales Chuvochina et al. 2024
Halothiobacillales Chuvochina et al. 2024
Nitrococcales Chuvochina et al. 2024
Methylohalomonadales Sorokin and Merkel 2023
Natronospirales Sorokin et al. 2025
Nitrosococcales Chuvochina et al. 2024
Thiohalomonadales Sorokin and Merkel 2023
Thiohalospirales Sorokin and Merkel 2023
Woeseiales Chuvochina et al. 2024
"Ca. Tenderiales" Chuvochina et al. 2023

The Chromatiales are an order of Gammaproteobacteria within Pseudomonadota. Like other Proteobacteria, the Chromatiales are Gram-negative and can be spherical, vibrioid, spiral or rod-shaped.

Classification

Some members of the order comprise the primarily anaerobic and phototrophic purple sulfur bacteria (PSBs), found specifically within the families Chromatiaceae and Ectothiorhodospiraceae. Other members, like those in the families Halothiobacillaceae and Thioalkalibacteraceae, are aerobic and chemolithoautotrophic.

References

  1. ↑ IMHOFF (J.F.): Order I. Chromatiales ord. nov. In: D.J. BRENNER, N.R. KRIEG, J.T. STALEY and G. M. GARRITY (editors), Bergey's Manual of Systematic Bacteriology, second edition, vol. 2 (The Proteobacteria), part B (The Gammaproteobacteria), Springer, New York, 2005, pp. 1-3.
  2. ↑ Yang, Liqiang; Tang, Lili; Liu, Lan; Salam, Nimaichand; Li, Wen-Jun; Zhang, Yongyu (2017). "Aquichromatium aeriopus gen. nov., sp. nov., A Non-phototrophic Aerobic Chemoheterotrophic Bacterium, and Proposal of Aquichromatiaceae fam. Nov. In the Order Chromatiales". Current Microbiology. 74 (8): 972–978. doi:10.1007/s00284-017-1275-1. PMID 28585047.