Chloroflexales is an order of bacteria in the class
Chloroflexia
The Chloroflexia are a class of bacteria in the phylum Chloroflexota. Chloroflexia are typically filamentous, and can move about through bacterial gliding. It is named after the order Chloroflexales.
Etymology
The name "Chloroflexi" is a Neo ...
. The clade is also known as filamentous anoxygenic phototrophic bacteria (FAP),
as the order contains
phototrophs that do not produce oxygen. These bacteria are facultative aerobic.
They generally use
chemotrophy when oxygen is present and switch to light-derived energy when otherwise. Most species are
heterotrophs
A heterotroph (; ) is an organism that cannot produce its own food, instead taking nutrition from other sources of organic carbon, mainly plant or animal matter. In the food chain, heterotrophs are primary, secondary and tertiary consumers, but ...
, but a few are capable of
photoautotrophy.
[
The order can be divided into two suborders. Chloroflexineae ("Green FAP", "green non-sulfur bacteria") is the better-known one. This suborder uses chlorosomes, a specialized antenna complex, to pass light energy to the reaction center. Roseiflexineae ("Red FAP") on the other hand has no such ability. The named colors are not absolute, as growth conditions such as oxygen concentration will make a green FAP appear green, brown, or reddish-orange by inducing changes in pigment composition.][
]
Classification
The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature
List of Prokaryotic names with Standing in Nomenclature (LPSN) is an online database that maintains information on the naming and taxonomy of prokaryotes, following the taxonomy requirements and rulings of the International Code of Nomenclatu ...
(LPSN) and National Center for Biotechnology Information
The National Center for Biotechnology Information (NCBI) is part of the National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The NCBI is lo ...
(NCBI).
Phylogeny
Taxonomy
*Suborder Roseiflexineae Gupta et al. 2013
**Family Roseiflexaceae Gupta et al. 2013 Mehrshad et al. 2018">Kouleotrichaceae" Mehrshad et al. 2018***Genus ?'' Heliothrix'' Pierson et al. 1986
***Genus "'' Kouleothrix''" Kohno et al. 2002
***Genus "''Candidatus'' Ribeiella" Petriglieri et al. 2023
***Genus '' Roseiflexus'' Hanada et al. 2002
*Suborder Chloroflexineae Gupta et al. 2013
**Family Chloroflexaceae Gupta et al. 2013
***Genus ?"''Candidatus'' Chloranaerofilum" Thiel et al. 2016
***Genus ''Chloroflexus
Chloroflexales is an order of bacteria in the class Chloroflexia. The clade is also known as filamentous anoxygenic phototrophic bacteria (FAP), as the order contains phototrophs that do not produce oxygen. These bacteria are facultative aerobic. ...
'' Pierson & Castenholz 1974 Ward et al. 1998">''Chlorocrinis''" Ward et al. 1998**Family Oscillochloridaceae Gupta et al. 2013
***Genus ?'' Chloronema'' ♪ Dubinina & Gorlenko 1975
***Genus "''Candidatus'' Chloroploca" Gorlenko et al. 2014
***Genus '' Oscillochloris'' Gorlenko & Pivovarova 1989
***Genus "''Candidatus'' Viridilinea" Grouzdev et al. 2018
See also
* List of bacteria genera
This article lists the genera of the bacteria
Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of Prokaryote, ...
* List of bacterial orders
This article lists the orders of the Bacteria. The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI)
and the phylogeny is based on 16 ...
References
External links
Phototrophic bacteria
Chloroflexota
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