中文摘要：

茉莉酸类化合物（jasmonate，JA）是诱导植物防卫反应的重要信号分子。JA不仅是系统素信号转导途径的重要组分，而且在植物长距离伤信号转导中发挥重要作用。JA还能单独或与其他激素相互作用调节与植物防卫反应相关的次生代谢物质芥子油苷的生物合成，从而影响植物的防卫反应。现对JA在植物防卫反应中的作用进行综述，并对今后这一领域的研究进行了展望。

英文摘要：

Jasmonate （JA） is important molecule in inducing plant defense response. JA is a key component in systemin signalling, and plays an essential role in long-distance wound signalling. JA also exerts indirect role in plant defense response independently or with other phytohormones by regulating the biosynthesis of secondary metabolite - glucosinolate, which is closely related to plant defense response. This review summarizes recent studies in unraveling the role of JA in plant defense response, and highlights the prospective of future research in this area.