Non-redundant functions of two proline dehydrogenase isoforms in Arabidopsis |
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| Authors: | Dietmar Funck Sonja Eckard Gudrun Müller |
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| Institution: | 1.Department of Plant Physiology and Biochemistry, Biology Section,University of Konstanz,Konstanz,Germany |
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| Abstract: | Background Proline (Pro) accumulation is a widespread response of prokaryotic and eukaryotic cells subjected to osmotic stress or dehydration.
When the cells are released from stress, Pro is degraded to glutamate by Pro-dehydrogenase (ProDH) and Pyrroline-5-carboxylate
dehydrogenase (P5CDH), which are both mitochondrial enzymes in eukaryotes. While P5CDH is a single copy gene in Arabidopsis, two ProDH genes have been identified in the genome. Until now, only ProDH1 (At3g30775) had been functionally characterised. |
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