Ethylene: Traffic Controller on Hormonal Crossroads to Defense
Ethylene: Traffic Controller on Hormonal Crossroads to Defense
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DOI：
10.1104/pp.15.01020
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发表时间：
2015-12-01
期刊：
影响因子：
7.4
通讯作者：
Van Wees, Saskia C. M.
中科院分区：
文献类型：
--
作者：
Broekgaarden, Colette;Caarls, Lotte;Van Wees, Saskia C. M.
乙烯（ET）是植物对病原微生物和植食性昆虫的反应以及植物与有益微生物和昆虫相互作用的重要激素。在这些生物相互作用期间的早期ET信号传导事件涉及促分裂原活化蛋白激酶和乙烯反应因子转录因子的活性。ET不是主要的调节因子，而是经常调节防御信号通路，包括由茉莉酸和水杨酸调节的防御信号通路。激素信号与ET的整合引导防御信号网络激活可以对攻击者产生直接影响的特定防御，或者系统地启动远程植物部分以增强对未来攻击的防御。ET还调节吸引食草动物的食肉敌人或警告邻近植物的挥发性信号。相反，ET信令也可以被攻击者利用来劫持防御信令网络，以抑制有效的防御。本文综述了ET在植物与天敌作战中的重要作用。
Ethylene (ET) is an important hormone in plant responses to microbial pathogens and herbivorous insects, and in the interaction of plants with beneficial microbes and insects. Early ET signaling events during these biotic interactions involve activities of mitogen-activated protein kinases and ETHYLENE RESPONSE FACTOR transcription factors. Rather than being the principal regulator, ET often modulates defense signaling pathways, including those regulated by jasmonic acid and salicylic acid. Hormonal signal integrations with ET steer the defense signaling network to activate specific defenses that can have direct effects on attackers, or systemically prime distant plant parts for enhanced defense against future attack. ET also regulates volatile signals that attract carnivorous enemies of herbivores or warn neighboring plants. Conversely, ET signaling can also be exploited by attackers to hijack the defense signaling network to suppress effective defenses. In this review, we summarize recent findings on the significant role of ET in the plants' battle against their enemies.