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.[2]
Quick facts Scientific classification, Type genus ...
| Chromatiales |
 |
| Chromatium okenii in the microscope at 600x magnification. |
Scientific classification  |
| Domain: |
Bacteria |
| Kingdom: |
Pseudomonadati |
| Phylum: |
Pseudomonadota |
| Class: |
Gammaproteobacteria |
| Order: |
Chromatiales
Imhoff 2005[1] |
| Type genus |
Chromatium
Perty 1852 (Approved Lists 1980) |
| Families |
- Chromatiaceae Bavendamm 1924 (Approved Lists 1980)
- Acidihalobacteraceae Chuvochina et al. 2024
- Aquisalimonadaceae Chuvochina et al. 2024
- Ectothiorhodospiraceae Imhoff 1984
- Granulosicoccaceae Lee et al. 2008
- Halofilaceae Chuvochina et al. 2024
- Halorhodospiraceae Imhoff et al. 2023
- Halothiobacillaceae Kelly and Wood 2005
- Methylohalomonadaceae Sorokin and Merkel 2023
- Natronospiraceae Sorokin et al. 2025
- Nitrococcaceae Chuvochina et al. 2024
- Nitrosococcaceae Chuvochina et al. 2024
- Oceanococcaceae Chuvochina et al. 2024
- "Ca. Poriferisulfidaceae" Chuvochina et al. 2023
- Sedimenticolaceae Slobodkina et al. 2024
- "Ca. Tenderiaceae" Chuvochina et al. 2023
- Thioalkalibacteraceae Boden 2017
- Thioalkalispiraceae Mori et al. 2011
- Thioalkalivibrionaceae Chuvochina et al. 2024
- Thiocapsaceae Bavendamm 1924 (Approved Lists 1980)
- Thiohalomonadaceae Sorokin and Merkel 2023
- Thiohalophilaceae Sorokin and Merkel 2023
- Thiohalospiraceae Sorokin and Merkel 2023
- Thioprofundaceae Kojima et al. 2017
- Wenzhouxiangellaceae Wang et al. 2015
- Woeseiaceae Du et al. 2016
- "Aquichromatiaceae" Yang et al. 2017
|
| 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 |
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