Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225000, China.
Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou 225000, China.
Int J Mol Sci. 2021 Feb 3;22(4):1543. doi: 10.3390/ijms22041543.
Due to global warming and population growth, plants need to rescue themselves, especially in unfavorable environments, to fulfill food requirements because they are sessile organisms. Stress signal sensing is a crucial step that determines the appropriate response which, ultimately, determines the survival of plants. As important signaling modules in eukaryotes, plant mitogen-activated protein kinase (MAPK) cascades play a key role in regulating responses to the following four major environmental stresses: high salinity, drought, extreme temperature and insect and pathogen infections. MAPK cascades are involved in responses to these environmental stresses by regulating the expression of related genes, plant hormone production and crosstalk with other environmental stresses. In this review, we describe recent major studies investigating MAPK-mediated environmental stress responses. We also highlight the diverse function of MAPK cascades in environmental stress. These findings help us understand the regulatory network of MAPKs under environmental stress and provide another strategy to improve stress resistance in crops to ensure food security.
由于全球变暖以及人口增长，植物需要自救，尤其是在不利环境中，以满足食物需求，因为它们是固着生物。应激信号感应是决定适当反应的关键步骤，而这最终决定了植物的生存。作为真核生物中的重要信号模块，植物丝裂原活化蛋白激酶 (MAPK) 级联反应在调节对以下四种主要环境胁迫的反应中起着关键作用：高盐度、干旱、极端温度以及昆虫和病原体感染。MAPK 级联反应通过调节相关基因的表达、植物激素的产生以及与其他环境胁迫的串扰来参与对这些环境胁迫的响应。在这篇综述中，我们描述了最近关于 MAPK 介导的环境胁迫反应的主要研究。我们还强调了 MAPK 级联反应在环境胁迫中的多样化功能。这些发现有助于我们理解 MAPK 在环境胁迫下的调控网络，并为提高作物的抗胁迫能力以确保粮食安全提供了另一种策略。
