Ornithine-δ-aminotransferase is essential for Arginine Catabolism but not for Proline Biosynthesis |
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| Authors: | Dietmar Funck Bettina Stadelhofer Wolfgang Koch |
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| Institution: | 1.Department of Plant Physiology and Biochemistry, Biology Section,University of Konstanz,Konstanz,Germany;2.ZMBP Plant Physiology,University of Tübingen,Tübingen,Germany |
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| Abstract: | Background Like many other plant species, Arabidopsis uses arginine (Arg) as a storage and transport form of nitrogen, and proline (Pro)
as a compatible solute in the defence against abiotic stresses causing water deprivation. Arg catabolism produces ornithine
(Orn) inside mitochondria, which was discussed controversially as a precursor for Pro biosynthesis, alternative to glutamate
(Glu). |
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