Plant responses to drought, from ABA signal transduction events to the action of the induced proteins
Plant responses to drought, from ABA signal transduction events to the action of the induced proteins
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DOI：
10.1016/s0981-9428(99)80039-4
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发表时间：
1999-05-01
影响因子：
6.5
通讯作者：
Pagès, M
中科院分区：
文献类型：
--
作者：
Campalans, A;Messeguer, R;Pagès, M
植物激素脱落酸（阿坝）是种子发育过程中的几个方面的调节和对环境胁迫如干燥，盐和寒冷的反应所必需的。对阿坝的生理反应的一个重要部分是通过基因表达来实现的。虽然不同的信号分子已被确定，从阿坝感知到特定基因的诱导的信号转导途径还没有很好地建立。特别是，磷酸化和去磷酸化事件已被确定为重要的阿坝信号。一个巨大的努力一直集中在分析ABA响应基因的启动子，以确定顺式和反式作用元件介导的转录调控。许多不同的蛋白质在缺水时积累，其中一些蛋白质在保护细胞免受脱水方面具有明确的功能。其他蛋白质，其功能还不完全清楚，包括莱亚蛋白质，其在胚胎发生后期和响应于阿坝而积累。(C)爱思唯尔，巴黎。
The plant hormone abscisic acid (ABA) is necessary for the regulation of several aspects during seed development and for the response to environmental stresses such as desiccation, salt and cold. An important part of the physiological response to ABA is achieved through gene expression. Although different signal molecules have been identified, the signal transduction pathway from ABA perception to the induction of specific genes is not very well established yet. In particular, phosphorylation and dephosphorylation events have been identified as important in ABA signalling. A great effort has been focused on analysing the promoters of ABA-responsive genes in order to identify cis- and trans-acting elements that mediate transcriptional regulation. Many different proteins accumulate in response to water deficit, some of them with a clear function in protecting the cells against dehydration. Other proteins, whose function is not completely understood, include LEA proteins that accumulate during late embryogenesis and in response to ABA. (C) Elsevier, Paris.