Drought- and desiccation-induced modulation of gene expression in plants
Drought- and desiccation-induced modulation of gene expression in plants
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DOI：
10.1046/j.0016-8025.2001.00764.x
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发表时间：
2002-02-01
影响因子：
7.3
通讯作者：
Bartels, D
中科院分区：
文献类型：
--
作者：
Ramanjulu, S;Bartels, D
干燥是脱水的极端形式。种子以及一小类被子植物——复苏植物获得了对干燥的耐受性。干燥耐受性是一系列复杂的分子事件级联的结果，这些事件可分为信号感知、信号转导、基因激活以及导致耐受性获得的生化改变。在不耐受干燥的植物脱水过程中也能观察到许多这类分子过程。在此，我们试图概述由脱水引发的基因表达程序，尤其涉及保护性分子及其表达的调控。还讨论了操纵胁迫耐受性的潜在转基因方法。
Desiccation is the extreme form of dehydration. Tolerance of desiccation is acquired by seeds and in resurrection plants, a small group of angiosperms. Desiccation tolerance is the result of a complex cascade of molecular events, which can be divided into signal perception, signal transduction, gene activation and biochemical alterations leading to acquisition of tolerance. Many of these molecular processes are also observed during the dehydration of non-tolerant plants. Here we try to give an overview of the gene expression programmes that are triggered by dehydration, with particular reference to protective molecules and the regulation of their expression. Potential transgenic approaches to manipulating stress tolerance are discussed.