绿叶挥发物顺式-3-己烯醇诱导的植物防御反应

Plant defense reaction induced by green leaf volatile cis-3-hexen-1-ol

绿叶挥发物(green leaf volatile, GLV)是植物在受到机械损伤、病原菌侵染、植食性昆虫取食等胁迫时产生的气态小分子物质,在植物防御反应中发挥重要的作用。顺式-3-己烯醇(cis-3-hexen-1-ol)作为主要的植物挥发性信号分子,以气态形式在植株间长距离扩散,介导植物产生直接或间接防御反应。本文系统地阐述了顺式-3-己烯醇生物合成的途径以及在植物防御反应过程中所触发的钙信号、茉莉酸(JA)信号、乙烯(ET)信号,为进一步研究顺式-3-己烯醇诱导防御的机制提供参考,也有助于人们理解生态群落中植物个体间的相互关系。

Green leaf volatiles(GLVs) are a group of well-characterized small gaseous molecule volatiles which are emitted by plants upon stress of mechanical injury, pathogen infection, and consumption by herbivorous insects. GLVs play a significant role in plant defense. As a major plant volatile signaling molecule, cis-3-hexen-1-ol can diffuse over long distances from plant to plant in gaseous form to mediate direct or indirect plant defense reactions. This article systematically expounded the cis-3-hexen-1-ol biosynthesis pathway and the calcium signal, jasmonic acid(JA) signal, and ethylene(ET) signal triggered in the process of plant defense response of cis-3-hexen-1-ol, which provides a reference for further research on the mechanism of cis-3-hexen-1-ol-induced defense, and also helps people to understand the relationship between individual plants in ecological communities.