Am ylase Activities are Stim ulated by Protein Phosphorylation in Apple Fruit

ACTA HORTICULTURAE SINICA ›› 2003, Vol. 30 ›› Issue (4): 455-456.

• 研究报告 • Previous Articles Next Articles

Am ylase Activities are Stim ulated by Protein Phosphorylation in Apple Fruit

Zhang Lingyun，Zhang Na，Pan Qiuhong，Duan Changqing，and Zhang Dapeng

(Laboratory ofMolecular Developmental Biology Trees，National Key Laboratory ofPlant Physiology and Biochemistry，China Agricultural，100094，China)

Received:1900-01-01 Revised:1900-01-01 Online:2003-08-25 Published:2003-08-25

Abstract

Abstract: The experiment conducted with Red Fuji apple(Ma／us dom／st／ca Borkh)showed that in vitro activities of both a—amylases and amylases of apple fruit significantly increased when adding ATP into the reaction of amylase assay，and this amylase activation was shown to be ATP dose—dependent．W7，an inhibitor of calcium-dependent protein kinases．significantly inhibited this am ylase activation also in a dose—depe ndent．These data indicate that a—amylases and t3-amylases ale activated by protein phosphorylation in developing apple fruit．

Key words: Fruit, Amylase, Protein phosphorylation

Zhang Lingyun;Zhang Na;Pan Qiuhong;Duan Changqing;and Zhang Dapeng. Am ylase Activities are Stim ulated by Protein Phosphorylation in Apple Fruit[J]. ACTA HORTICULTURAE SINICA, 2003, 30(4): 455-456.

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Am ylase Activities are Stim ulated by Protein Phosphorylation in Apple Fruit

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