Chrysiogenes

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iChrysiogenetes
Scientific classification
Kingdom: Bacteria
Division: Chrysiogenetes
Garrity & Holt, 2002
Order: Chrysiogenales
Garrity & Holt, 2002
Family: Chrysiogenaceae
Garrity & Holt, 2002
Genus: Chrysiogenes
Macy et al., 1996
Species: C. arsenatis
Binomial name
Chrysiogenes arsenatis
Macy et al., 1996

Chrysiogenes arsenatis is a species of bacterium given its own phylum or division, called the Chrysiogenetes. It has a unique lifestyle and biochemistry. It is a chemolithoautotroph meaning that it uses chemical means to digest rock for energy and does not require organic matter for its existence. In this organism's case, it eats arsenic. Arsenic is usually toxic to life, but these organisms use arsenite, an oxidized form of arsenic, as an electron donor to create energy. Chrysiogenes arsenatis is found in environments rich in arsenite, such as the arsenic-contaminated sediments of Lake Coeur D'Alene in Idaho, or in a gold mine in the Northern Territory of Australia.


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