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Glycine, Serine and Threonine Metabolism in D. psychrophila

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D. psychrophila (Desulfotalea psychrophila) is a sulfate-reducing Gram-negative Delta-proteobacterium that is able to grow at temperatures below 0°C, i.e., psychrophilic and reside mostly in cold arctic marine sediments. The main mode of energy generation in D. psychrophila is sulfate reduction through fermentation. Investigating the biochemical mechanisms of such sulfate-reducing psychrophilic bacteria is vital for understanding the functioning of global biogeochemical cycles. The common fermentation products that occur in marine sediments are Acetate, Propionate, Butyrate, Lactate and Hydrogen. These bacteria utilize Pyruvate, Lactate, Alcohols and Hydrogen as carbon or energy sources. The metabolism of vital amino acids like Glycine, Serine and Threonine acts as one of the many sources that provide carbon or energy to D. psychrophila in form of intermediates [...]


1.The genome of Desulfotalea psychrophila, a sulfate-reducing bacterium from permanently cold Arctic sediments.
Rabus R, Ruepp A, Frickey T, Rattei T, Fartmann B, Stark M, Bauer M, Zibat A, Lombardot T, Becker I, Amann J, Gellner K, Teeling H, Leuschner WD, Glockner FO, Lupas AN, Amann R, Klenk HP.
Environ. Microbiol. 2004 Sep;6(9):887-902.
2.Accelerated sulfur cycle in coastal marine sediment beneath areas of intensive shellfish aquaculture.
Asami H, Aida M, Watanabe K.
Appl. Environ. Microbiol. 2005 Jun;71(6):2925-33.
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