MAPK signaling: a key element in plant defense response to insects.
MAPK signaling: a key element in plant defense response to insects.
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DOI：
10.1111/1744-7917.12128
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发表时间：
2015-04
期刊：
影响因子：
4
通讯作者：
Wu J
中科院分区：
文献类型：
--
作者：
Hettenhausen C;Schuman MC;Wu J
长期以来，昆虫一直是最丰富的食草动物，植物已经进化出复杂的机制来抵御它们的攻击。特别是，植物可以感知与昆虫食草相关的组织损伤的特定模式。一些植物物种可以感知昆虫口腔分泌物（OS）中的某些诱导子，这些诱导子在进食过程中进入伤口，并迅速激活一系列相互交织的信号通路，以协调各种防御代谢产物的生物合成。丝裂原活化蛋白激酶（MAPK）是所有真核生物所共有的，参与许多细胞过程的协调，包括发育和应激反应。在植物中，至少有两种MAPK，水杨酸诱导的蛋白激酶（SIPK）和创伤诱导的蛋白激酶（WIPK），被创伤或昆虫OS快速激活;重要的是，使用MAPK信号传导受损的转基因或突变体植物的遗传研究表明，MAPK在调节植物激素如茉莉酸、乙烯和水杨酸的草食诱导的动力学中起关键作用，MAPKs还参与草食动物防御相关基因的转录激活和防御代谢产物的积累。本文综述了MAPKs在植物抗虫性中的研究进展。
Insects have long been the most abundant herbivores, and plants have evolved sophisticated mechanisms to defend against their attack. In particular, plants can perceive specific patterns of tissue damage associated with insect herbivory. Some plant species can perceive certain elicitors in insect oral secretions (OS) that enter wounds during feeding, and rapidly activate a series of intertwined signaling pathways to orchestrate the biosynthesis of various defensive metabolites. Mitogen-activated protein kinases (MAPKs), common to all eukaryotes, are involved in the orchestration of many cellular processes, including development and stress responses. In plants, at least two MAPKs, salicylic acid-induced protein kinase (SIPK) and wound-induced protein kinase (WIPK), are rapidly activated by wounding or insect OS; importantly, genetic studies using transgenic or mutant plants impaired in MAPK signaling indicated that MAPKs play critical roles in regulating the herbivory-induced dynamics of phytohormones, such as jasmonic acid, ethylene, and salicylic acid, and MAPKs are also required for transcriptional activation of herbivore defense-related genes and accumulation of defensive metabolites. In this review, we summarize recent developments in understanding the functions of MAPKs in plant resistance to insect herbivores.