Physiological impacts of ABA-JA interactions under water-limitation.
Physiological impacts of ABA-JA interactions under water-limitation.
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DOI：
10.1007/s11103-016-0503-6
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发表时间：
2016-08
影响因子：
5.1
通讯作者：
Dodd IC
中科院分区：
文献类型：
--
作者：
de Ollas C;Dodd IC
植物对干旱胁迫的响应依赖于多种相互作用的高度调节的信号转导途径。这种复杂的串扰可以导致干旱回避或耐受性/抗性的生理结果。阿坝是这些响应的主要介质，由于气孔关闭的调节，决定植物的生长和存活，但也有其他抗旱策略，如渗透调节。然而，其他激素，如JA似乎负责调节植物响应干旱的一个子集，通过调节阿坝的生物合成和积累和ABA依赖的信号，但也通过阿坝独立的途径。在这里，我们回顾最近的报道ABA JA激素和分子相互作用的耐旱性的生理框架内。了解这种复杂调节的生理意义，为找到耐旱策略提供了机会，这些策略可以避免限制生长和产量的不必要的副作用，并可能允许生物技术作物改良。
Plant responses to drought stress depend on highly regulated signal transduction pathways with multiple interactions. This complex crosstalk can lead to a physiological outcome of drought avoidance or tolerance/resistance. ABA is the principal mediator of these responses due to the regulation of stomatal closure that determines plant growth and survival, but also other strategies of drought resistance such as osmotic adjustment. However, other hormones such as JA seem responsible for regulating a subset of plant responses to drought by regulating ABA biosynthesis and accumulation and ABA-dependent signalling, but also by ABA independent pathways. Here, we review recent reports of ABA–JA hormonal and molecular interactions within a physiological framework of drought tolerance. Understanding the physiological significance of this complex regulation offers opportunities to find strategies of drought tolerance that avoid unwanted side effects that limit growth and yield, and may allow biotechnological crop improvement.