Crenarchaeota

Caldisphaerales

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Cenarchaeales

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Desulfurococcales

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Sulfolobales

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Thermoproteales

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The Crenarchaeota are a major group of Archaea, containing many extremely thermophilic and psychrophilic organisms. They are separated from the other archaeans based mainly on rRNA sequences. They are a dominant member of planktonic communities in cold, oxygen-rich (oxic or aerobic) seawater, and are also ubiquitous in cold alpine and arctic soils. Many of this clade are chemoautotrophs, deriving carbon for their biochemistry from inorganic sources, such as bicarbonate.

Related Topics:
Archaea - Thermophilic - Psychrophilic

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