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Effect of some flavonoids on IAA oxidase preparations from Ipomoea batatas roots

Effect of some flavonoids on IAA oxidase preparations from Ipomoea batatas roots

Alexandria Journal of Agricultural Research 39(2): 349-369

Activity of IAA oxidase isolated from sweet potato roots was inhibited by some flavonoids but activated by others, depending on their molecular structure. Compounds with only 1 hydroxyl group on the B ring increased enzyme activity, whereas those with 2 hydroxyl groups inhibited the enzyme. Isochlorogenic acid acted as a competitive inhibitor of IAA oxidase.

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Accession: 002604679

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