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Sorbitol-1-phosphate and sorbitol-6-phosphate in apricot leaves
Authors:R.J. Redgwell  R.L. Bieleski
Affiliation:Plant Diseases Division, Department of Scientific and Industrial Research, Private Bag, Auckland, New Zealand
Abstract:Sorbitol-1-phosphate and sorbitol-6-phosphate were isolated from Prunus armeniaca leaves that had been labelled with 14C by photosynthesis in 14CO2. Each hexitol phosphate was present at ca 7 μmol/kg fr. wt in the tissue and formed ca 4% of the hexose monophosphate fraction. 14C-specific activity measurements suggest that each hexitol monophosphate is formed from a hexose monophosphate, and that one or other could be an intermediate in photosynthesis of sorbitol from CO2.
Keywords:Rosaceae  photosynthesis  polyols  sorbitol  sorbitol-1-phosphate  sorbitol-6-phosphate.
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