Regulation of abscisic acid-induced stomatal closure and anion channels by guard cell AAPK kinase

被引：357

作者：

Li, JX ^{[1
]}

Wang, XQ ^{[1
]}

Watson, MB ^{[1
]}

Assmann, SM ^{[1
]}

机构：

[1] Penn State Univ, Mueller Lab 208, Dept Biol, University Pk, PA 16802 USA

来源：

SCIENCE | 2000年 / 287卷 / 5451期

关键词：

D O I：

10.1126/science.287.5451.300

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Abscisic acid (ABA) stimulates stomatal closure and thus supports water conservation by plants during drought. Mass spectrometry-generated peptide sequence information was used to clone a Vicia faba complementary DNA, AAPK, encoding a guard cell-specific ABA-activated serine-threonine protein kinase.(AAPK). Expression in transformed guard cells of AAPK altered by one amino acid (lysine 43 to alanine 43) renders stomata insensitive to ABA-induced closure by eliminating ABA activation of plasma membrane anion channels. This information should allow cell-specific, targeted biotechnological manipulation of crop water status.

引用

页码：300 / 303

页数：4

共 34 条

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