植物学报 ›› 2003, Vol. 20 ›› Issue (06): 664-670.

• 综述与专论 • 上一篇    下一篇

脱落酸诱导气孔关闭的信号转导研究

权宏 施和平 李玲   

  1. (华南师范大学生命科学学院植物发育工程实验室 广州 510631)
  • 收稿日期:2002-10-21 修回日期:2003-03-28 出版日期:2003-12-20 发布日期:2003-12-20
  • 通讯作者: 施和平

Signal Transduction of ABA Inducing Stomatal Closure

QUAN Hong SHI He-Ping LI Ling   

  1. (Laboratory of plant development, College of Life Sciences, South China Normal University,Guangzhou 510631)
  • Received:2002-10-21 Revised:2003-03-28 Online:2003-12-20 Published:2003-12-20
  • Contact: SHI He-Ping

摘要: 气孔保卫细胞是单个细胞水平研究ABA信号转导机制的一 个模式系统。脱落酸(ABA)通过对保卫细胞生理生化状态、胞质Ca2+浓度及其离子通道调节诱导气孔关闭过程。这个过程涉及的因素有:ROS、IP3、cADPR、蛋白质的可逆磷酸化等。

Abstract: Guard cells surround stoma in the epidermis of plant leaves and stems. Stomatal guard cells have become a highly developed model system for characterizing early signal transduction mechanism in plants.Abscisic acid(ABA) can induce stomatal closure effectively through regulating the physiological and biochemical state of the guard cells. ABA regulated ion channels are key factors of ABA_induced stomatal closure. During the process,many factors are involved,including ROS,IP3, cADPR,protion phosphorylation and dephosphorylation etc.