The induction of stomatal closure by ABA, Ca2+, or darkness was inhibited by pretreatment with APM 50 mg/L for 60 min in the light, suggesting that MT might play roles in stomatal closure.

• 进一步的研究表明,开放气孔经APM预处理60min后,再用ABA、Ca~(2+)及暗处理均不能诱导气孔关闭,表明微管可能参与了ABA、Ca~(2+)及暗诱导的气孔关闭过程;