Aromatic Biosynthesis in Higher Plants: IV. THE DISTRIBUTION OF DEHYDROSHIKIMIC REDUCTASE AND DEHYDROQUINASE |
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Authors: | BALINSKY, DORIS DAVIES, D. D. |
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Abstract: | The distribution of two of the enzymes involved in the biosynthesisof aromatic compounds in higher plants, namely dehydroshikimicreductase and dehydroquinase, was studied. The two enzymes werefound to occur mainly in the supernatant fraction of cauliflowerbuds. In extracts of pea epicotyls, 30 per cent. of the dehydroshikimicreductase activity was associated with the mitochondria. Theactivities of the two enzymes in various organs of germinatingpea seedlings were measured over an 8-day period. Synthesisof both enzymes was indicated in the roots, shoots, and cotyledons.The two enzymes were found to occur in a variety of plant materials. |
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