Inter-tissue and inter-organ signaling in drought stress response and phenotyping of drought tolerance.
Inter-tissue and inter-organ signaling in drought stress response and phenotyping of drought tolerance.
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干旱胁迫响应以及耐旱性表型分析中的组织间和器官间信号传导
DOI：
10.1111/tpj.15619
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发表时间：
2022-01
期刊：
影响因子：
7.2
通讯作者：
Shinozaki, Kazuo
中科院分区：
文献类型：
--
作者：
Kuromori, Takashi;Fujita, Miki;Takahashi, Fuminori;Yamaguchi-Shinozaki, Kazuko;Shinozaki, Kazuo
关键词：
植物对干旱胁迫的响应包括基因表达和信号的细胞内调节系统，以及组织间和器官间的信号传导，这有助于整个植物获得胁迫抗性。植物通过叶和根的气孔感知水分亏缺情况，并通过器官间信号传递将水分亏缺信号从根传递到芽。脱落酸是参与干旱胁迫反应和适应的一种重要激素，主要由叶片的维管组织和保卫细胞合成。在叶片中，胁迫诱导的脱落酸通过转运蛋白分布到各个组织，激活气孔关闭和胁迫相关基因的表达，从而获得干旱胁迫抗性。此外，整个植物水平的逐步胁迫反应对于正确理解干旱条件下的生理反应非常重要。干旱胁迫被多种类型的传感器感知为非生物胁迫信号的分子模式，这些信号通过独立的并行信号网络传输以诱导下游响应，包括气孔关闭和胁迫相关蛋白和代谢物的合成。肽分子在从根到芽的器官间脱水信号传导以及渗透变化和活性氧/Ca 2+的信号传导中发挥重要作用。本文综述了近年来植物复杂干旱胁迫响应的研究进展，重点介绍了叶片组织间信号和根到芽的器官间信号。我们已经讨论了在整个植物水平上获得干旱胁迫适应和抗性的机制，并提出了定量表型对测量干旱条件下植物生长的重要性。本文综述了复杂干旱胁迫响应和耐受中的组织间信号、器官间信号和胁迫感知，其中胁迫信号的分子模式被不同的传感器感知并传递到其他组织和器官，从而诱导胁迫响应。还讨论了干旱条件下定量表型的最新进展，以了解复杂干旱反应和耐受性的整个系统。
Plant response to drought stress includes systems for intracellular regulation of gene expression and signaling, as well as inter‐tissue and inter‐organ signaling, which helps entire plants acquire stress resistance. Plants sense water‐deficit conditions both via the stomata of leaves and roots, and transfer water‐deficit signals from roots to shoots via inter‐organ signaling. Abscisic acid is an important phytohormone involved in the drought stress response and adaptation, and is synthesized mainly in vascular tissues and guard cells of leaves. In leaves, stress‐induced abscisic acid is distributed to various tissues by transporters, which activates stomatal closure and expression of stress‐related genes to acquire drought stress resistance. Moreover, the stepwise stress response at the whole‐plant level is important for proper understanding of the physiological response to drought conditions. Drought stress is sensed by multiple types of sensors as molecular patterns of abiotic stress signals, which are transmitted via separate parallel signaling networks to induce downstream responses, including stomatal closure and synthesis of stress‐related proteins and metabolites. Peptide molecules play important roles in the inter‐organ signaling of dehydration from roots to shoots, as well as signaling of osmotic changes and reactive oxygen species/Ca2+. In this review, we have summarized recent advances in research on complex plant drought stress responses, focusing on inter‐tissue signaling in leaves and inter‐organ signaling from roots to shoots. We have discussed the mechanisms via which drought stress adaptations and resistance are acquired at the whole‐plant level, and have proposed the importance of quantitative phenotyping for measuring plant growth under drought conditions. This review focuses on inter‐tissue signaling, inter‐organ signaling, and stress sensing in complex drought stress responses and tolerance, in which molecular patterns of stress signals are sensed by different sensors and transmitted to other tissues and organs to induce stress responses in total. Recent progress in quantitative phenotyping under drought conditions is also discussed to understand the whole system of complex drought responses and tolerance.
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影响因子：
5.6
作者：
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