Negative Regulation of Amylase Activity by Fructose and Glucose in GrowingApple Fruits

ACTA HORTICULTURAE SINICA ›› 2003, Vol. 30 ›› Issue (1): 74-76.

• 研究报告 • Previous Articles Next Articles

Negative Regulation of Amylase Activity by Fructose and Glucose in GrowingApple Fruits

Duan Changqing;Wang Yongzhang; Pan Qiuhong;Zhang Lingyun;Zhang Dapeng

(Laboratory of Molecular Developmental Biology of f ruit Trees , National Key Laboratory of Plant Physiology and Biochemistry , China Agricultural University , Beijing 100094 , China)

Received:2001-12-06 Revised:2002-04-04 Online:2003-02-25 Published:2003-02-25

Abstract

Abstract: The experiment conducted with Red Fuji apple (Malus domistica Borkh) showed that the girdling resulted in a decrease of sucrose , fructose and glucose contents and induced an amylase activation. The amylase activity began to decline on 3^rdday of treatment from the high level and deceased to the control level when starch content in the treated fruits was lower than 1/ 3 of the control . Incubation of the fruit discs in the medium containing the soluble sugars showed that fructose and glucose induced the decrease of amylase activity. It is considered that the changes in fructose and glucose concentration in the fruits may be a signal regulating the amylase activity.

Key words: Apple, Fruit, Amylase, Sugar signal

CLC Number:

:S 661. 1

Duan Changqing;Wang Yongzhang;Pan Qiuhong;Zhang Lingyun;Zhang Dapeng. Negative Regulation of Amylase Activity by Fructose and Glucose in GrowingApple Fruits[J]. ACTA HORTICULTURAE SINICA, 2003, 30(1): 74-76.

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Negative Regulation of Amylase Activity by Fructose and Glucose in GrowingApple Fruits

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