不同条件下水杨酸对蚕豆气孔开度的影响  

EFFECT OF SALICYLIC ACID ON STOMATAL APERTURE OF VICICA FABA L. UNDER DIFFERENT CONDITIONS

作　　者：刘新[1] 张蜀秋[1] 孟繁霞[1] 

机构地区：[1]中国农业大学生物学院,北京100094

出　　处：《应用与环境生物学报》1999年第6期638-639,共2页Chinese Journal of Applied and Environmental Biology

摘　　要：The effect of salicylic acid (SA) on stomatal aperture of 3～4 weeks’ Vicia faba L. under different conditions was investigated. It was shown that stomatal closure responded to SA after 3 hours treatment. The concentration and pH of SA solution at different media affeeted SA to different extents. The degree of effects was concentration-dependent. With increasing SA concentration, the promotion effect on stomatal closure was enhanced. At 10 -3 mol L -1 SA exerted the most effect. The effect of SA was dependent on the pH of the solution. In the range of 10 -6 ～10 -3 mol L -1 as pH decreased, the effect of SA on stomatal closure was enhanced. SA 10 -4 mol L -1 in distilled water at pH 4 the percentage of inhibition on the stomatal aperture was 67%, while at pH 7 the percentage of inhibition was only 20%. The degrees of SA effect on stomatal aperture in distilled water、MES buffer solution and citric acid buffer solution were different. In MES buffer the effect of SA was lower than that in distilled water, or in citric acid buffer.The effect of salicylic acid (SA) on stomatal aperture of 3～4 weeks' Vicia faba L. under different conditions was investigated. It was shown that stomatal closure responded to SA after 3 hours treatment. The concentration and pH of SA solution at different media affeeted SA to different extents. The degree of effects was concentration-dependent. With increasing SA concentration, the promotion effect on stomatal closure was enhanced. At 10 -3 mol L -1 SA exerted the most effect. The effect of SA was dependent on the pH of the solution. In the range of 10 -6 ～10 -3 mol L -1 as pH decreased, the effect of SA on stomatal closure was enhanced. SA 10 -4 mol L -1 in distilled water at pH 4 the percentage of inhibition on the stomatal aperture was 67%, while at pH 7 the percentage of inhibition was only 20%. The degrees of SA effect on stomatal aperture in distilled water、MES buffer solution and citric acid buffer solution were different. In MES buffer the effect of SA was lower than that in distilled water, or in citric acid buffer.

关 键 词：水杨酸 气孔运动 蚕豆 植物生长调节剂 

分 类 号：S643.601[农业科学—蔬菜学] S143.8[农业科学—园艺学]