中文摘要：

气孔是由植物器官表面成对的保卫细胞围成的小孔，气孔运动控制气体交换，与植物逆境应答和生长发育等生物学过程密切相关，受多种因子调控，茉莉酸甲酯（MeJA）是其中之一。与ABA类似，MeJA也可诱导气孔关闭，但是其机理尚不清楚。该文综述了近年来MeJA调控气孔运动的信号转导机制进展，包括ca抖、胞质pH、活性氧和NO等第二信使对气孔开闭的影响以及CO11、JAR1、RCN1和TGG1／2等信号组分之间的调控关系，并讨论了保卫细胞中MeJA与ABA信号途径的相互作用。

英文摘要：

Stomata are small pores on the plant surface, bounded by pairs of guard cells. Stomatal movements control gas exchange between the plant and its surroundings and are closely related to growth, development and responses to stresses. Stomatal movements are regulated by multiple factors including methyl jasmonate （MeJA）. Similar to abscisic acid （ABA）, methyl jasmonate （MeJA） stimulates stomatal closure, but the molecular mechanisms underlying this biolOgical process remain unknown. This review summerizes recent advances in mechanisms of MeJA-induced stomatal closure, involving changes in cytosolic pH, the second messengers Ca2＋, reactive oxygen species （ROS） and nitric oxide （NO）, and key signaling components such as COIl, JAR1, RCN1 and TGG1/2. Signal crosstalk between MeJA and ABA pathways in guard cells is also discussed.