Phytohormone-regulated beta-amylase gene expression in rice

被引：35

作者：

Wang, SM ^{[1
]}

Lue, WL ^{[1
]}

Eimert, K ^{[1
]}

Chen, JC ^{[1
]}

机构：

[1] NATL TAIWAN UNIV, DEPT BOT, TAIPEI 10764, TAIWAN

来源：

PLANT MOLECULAR BIOLOGY | 1996年 / 31卷 / 05期

关键词：

rice germinating seeds; beta-amylase; phytohormone; gibberellin; abscisic acid;

D O I：

10.1007/BF00040716

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The expression of beta-amylase genes in rice (Oryza sativa) and its regulation by phytohormones gibberellic acid (GA) and abscisic acid (ABA) were examined. Upon germination beta-amylase is synthesized de novo in aleurone cells and (GA) is not required. Exogenous addition of GA does not enhance the beta-amylase activity, while ABA inhibits the beta-amylase activity, mRNA accumulation, and the germination of rice seeds. GA can reverse ABA inhibition of beta-amylase expression, but not ABA inhibition of seed germination. Such regulation represents a new interaction of ABA and GA.

引用

页码：975 / 982

页数：8

共 32 条

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