Long-distance signalling of abscisic acid (ABA): the factors regulating the intensity of the ABA signal

被引：218

作者：

Jiang, Fan ^{[2
]}

Hartung, Wolfram ^{[1
]}

机构：

[1] Univ Wurzburg, Lehrstuhl Bot 1, D-97082 Wurzburg, Germany

[2] Beijing Normal Univ, Coll Life Sci, Beijing 100875, Peoples R China

来源：

JOURNAL OF EXPERIMENTAL BOTANY | 2008年 / 59卷 / 01期

关键词：

abscisic acid glucose ester; apoplast; beta-glucosidases; pH; rhizosphere; xylem;

D O I：

10.1093/jxb/erm127

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Abscisic acid (ABA) is a stress signal, which moves in the xylem from the roots to the aerial parts of the plant, where it regulates stomatal movement and the activity of shoot meristems. Root growth-promoting microorganisms in the rhizosphere, lateral ABA flows in the root cortex across apoplastic barriers, ABA redistribution in the stem, leaf apoplastic pH values, and the action of beta-glucosidases, both in the apoplast and the cytosol of the mesophyll, play an important role in the regulation of signal intensity. The significance of abscisic acid glucose ester as a long-distance stress signal is discussed.

引用

页码：37 / 43

页数：7

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