Green non-sulfur bacteria
| Chloroflexi | |
|---|---|
| Scientific classification | |
| Domain: | Bacteria |
| Phylum: | Chloroflexi |
| Class: |
Chloroflexia Gupta et al. 2013 |
| Orders & Suborders | |
| Synonyms | |
|
Chloroflexia Castenholz 2001 |
|
Herpetosiphonales
Chloroflexales
Chloroflexia Castenholz 2001
The Chloroflexia are one of six classes of bacteria in the phylum Chloroflexi, known as filamentous green non-sulfur bacteria. They produce energy from light and are named for their green pigment, usually found in photosynthetic bodies called chlorosomes.
Chloroflexia are typically filamentous, and can move about through bacterial gliding. They are facultatively aerobic, but do not produce oxygen in the process of producing energy from light, or phototrophy. Additionally, Chloroflexia have a different method of phototrophy (photoheterotrophy) than true photosynthetic bacteria.
Whereas most bacteria, in terms of diversity, are diderms and stain Gram negative with the exception of the Firmicutes (low GC Gram positives), Actinobacteria (high GC, Gram positives) and the Deinococcus-Thermus group (Gram positive, but diderms with thick peptidoglycan), the members of the phylum Chloroflexi are monoderms and stain mostly Gram negative.
The Chloroflexia class is a group of deep branching photosynthetic bacteria (with the exception of Herpetosiphon and Kallotenue species) that currently consist of three orders: Chloroflexales, Herpetosiphonales, and Kallotenuales. The Herpetosiphonales and Kallotenuales each consist of a single genus within its own family, Herpetosiphonaceae (Herpetosiphon) and Kallotenuaceae (Kallotenue), respectively, whereas the Chloroflexales are more phylogenetically diverse.
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