Tolerance to drought and salt stress in plants: Unraveling the signaling networks.
Tolerance to drought and salt stress in plants: Unraveling the signaling networks.
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DOI：
10.3389/fpls.2014.00151
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发表时间：
2014
影响因子：
5.6
通讯作者：
Probst N
中科院分区：
文献类型：
--
作者：
Golldack D;Li C;Mohan H;Probst N
植物对干旱和盐分等非生物胁迫的耐受性是由复杂的多组分信号通路触发的，以恢复细胞内稳态并促进生存。主要的植物转录因子家族，如bZIP、NAC、AP2/ERF和MYB，协调着非生物逆境耐受性的调控网络。蔗糖非发酵相关蛋白激酶2和丝裂原活化蛋白激酶途径有助于启动逆境适应性下游反应，促进植物生长发育。作为多种非生物信号的汇聚点，环境胁迫对细胞的影响不仅表现为离子和渗透平衡失衡，还表现为光合作用受损、细胞能量耗竭和氧化还原失衡。最近有证据表明，调节系统将环境条件的感知和信号与细胞内的氧化还原状态联系在一起，这一证据揭示了压力和能量信号的接口。ROS通过膜脂的过氧化和去酯化导致严重的细胞损伤，然而，目前的模型也定义了ROS在触发对应激的耐受中的关键信号功能。最近的研究进展表明并支持ROS在应激触发的激素信号的交叉交谈中的调节作用，如脱落酸途径和内源性诱导的氧化还原和代谢物信号。在这里，我们讨论和综述了在ROS和脂类信号背景下非生物胁迫响应信号网络中的多功能分子收敛以及气孔信号的特定作用。
Tolerance of plants to abiotic stressors such as drought and salinity is triggered by complex multicomponent signaling pathways to restore cellular homeostasis and promote survival. Major plant transcription factor families such as bZIP, NAC, AP2/ERF, and MYB orchestrate regulatory networks underlying abiotic stress tolerance. Sucrose non-fermenting 1-related protein kinase 2 and mitogen-activated protein kinase pathways contribute to initiation of stress adaptive downstream responses and promote plant growth and development. As a convergent point of multiple abiotic cues, cellular effects of environmental stresses are not only imbalances of ionic and osmotic homeostasis but also impaired photosynthesis, cellular energy depletion, and redox imbalances. Recent evidence of regulatory systems that link sensing and signaling of environmental conditions and the intracellular redox status have shed light on interfaces of stress and energy signaling. ROS (reactive oxygen species) cause severe cellular damage by peroxidation and de-esterification of membrane-lipids, however, current models also define a pivotal signaling function of ROS in triggering tolerance against stress. Recent research advances suggest and support a regulatory role of ROS in the cross talks of stress triggered hormonal signaling such as the abscisic acid pathway and endogenously induced redox and metabolite signals. Here, we discuss and review the versatile molecular convergence in the abiotic stress responsive signaling networks in the context of ROS and lipid-derived signals and the specific role of stomatal signaling.
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5.6
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影响因子：
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影响因子：
5.1
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