酪氨酸蛋白磷酸酶(PTPase)参与水杨酸调控蚕豆气孔运动的信号转导

Involvement of Protein Tyrosine Phosphatase in Signal Transduction of Salicylic Acid Regulated Stomatal Movement of Vicia faba L.

研究酪氨酸蛋白磷酸酶（PTPase）的抑制剂氧化苯胂（PAO）、钒酸钠（NaVO3）和Zn^2＋对水杨酸（sA）调控蚕豆气孔运动影响的结果表明，0-1mmol．L—PAO、0—4mmol·L^-1—NaVO3和0—4mmol·L^-1。Zn^2＋对光诱导蚕豆气孔开度变化的影响不大，但都可以抑制黑暗或SA诱导的气孔关闭，据此推测，PTPase可能参与SA诱导气孔关闭的信号转导过程。

The effects of protein tyrosine phosphatase （PTPase） inhibitor phenylarsine oxide （PAO）, sodium vanadate （NaVO3） and Zn^2＋ on salicylic acid （SA） regulated Hciafaba stomatal movement were studied. The results showed that PAO （0-1 mmol·L^-1）, NaVO3 （0-4 mmol·L^-1） and Zn^2＋ （0-4 mmol·L^-1） had no effects on light induced stomatal opening, but inhibited the darkness or SA induced stomatal closure. It suggested that PTPase maybe participated in the signal transduction of SA regulated V. faba stomatal closure.