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园艺学报 ›› 2003, Vol. 30 ›› Issue (1): 74-76.

• 研究报告 • 上一篇    下一篇

苹果幼果果糖和葡萄糖对淀粉酶活性的负调节

段长青;王永章*;潘秋红;张凌云;张大鹏**   

  1. (中国农业大学果树分子发育实验室, 植物生理生化国家重点开放实验室, 北京100094)
  • 收稿日期:2001-12-06 修回日期:2002-04-04 出版日期:2003-02-25 发布日期:2003-02-25

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

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

  1. (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

摘要: 用红富士苹果进行的研究表明, 环剥处理使幼果内蔗糖、果糖和葡萄糖含量降低, 淀粉酶活性升高。当果实内淀粉含量不足对照的1/ 3 时, 淀粉酶活性与对照持平或降至对照之下。以外源糖温育果实圆片试验表明, 果糖和葡萄糖诱导了淀粉酶活性的下降。综合认为果实内果糖和葡萄糖含量的变化可能是调节淀粉酶活性的信号。

关键词: 苹果, 果实, 淀粉酶, 糖信号

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 3rd day 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

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