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Signal Transduction Mechanism of Stomatal Closure Stimulated by Methyl Jasmonate in Guard Cells
Wang Junbin1,2, Li Ming1, Ding Bo1, Xie Xiaodong1*
1Tianjin-Bristol Research Center for the Effects of the Environment Change on Crops, Tianjin Agricultural University,Tianjin 300384, China; 2Department of Basic Sciences, Tianjin 300384, China
Abstract: 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 COI1， JAR1， RCN1 and TGG1/2. Signal
crosstalk between MeJA and ABA pathways in guard cells is also discussed.
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 COI1， JAR1， RCN1 and TGG1/2. Signal
crosstalk between MeJA and ABA pathways in guard cells is also discussed.
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