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Seed dormancy in red rice. X. A 13C-NMR study of the metabolism of dormancy-breaking chemicals



Seed dormancy in red rice. X. A 13C-NMR study of the metabolism of dormancy-breaking chemicals



Physiologia Plantarum 94(4): 667-671



Hydrated, dormant seeds of red rice were exposed to dormancy-breaking treatments of propionate-2-13C (22 mM) or propanol-1-13C (75 mM) for 24 h at 30 degrees C. Embryo extracts were analysed by 13C-nuclear magnetic resonance spectroscopy. Metabolism of propionate and propanol to 3-hydroxypropionate, an intermediate of the modified beta -oxidation pathway, was detected after 2 and 4 h, respectively. This occurred prior to the onset of dormancy breaking which required 12 h of chemical exposure.

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Accession: 002692538

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DOI: 10.1111/j.1399-3054.1995.tb00982.x



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