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

被引：353
|
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
收藏
页码：300 / 303
页数：4
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