《植物生理学报》 2010, 46(3): 249-252

外源NO、H₂O₂ 和ABA 对鸡蛋花花冠裂片上气孔关闭的影响

姜兆玉, 王永飞*

暨南大学生物工程学系, 广州 510632

通信作者：王永飞；E-mail: wyfmsm@163.com；Tel: 020-38897606

摘　要：

以鸡蛋花花冠裂片下表皮为材料, 研究不同浓度及不同处理时间的外源 NO、H2O2 和 ABA 对鸡蛋花花冠裂片下表 皮上气孔关闭的影响, 以及 NO、H2O2 和 ABA 在调节花冠上气孔关闭中的相互作用。结果表明: 单独施用 NO、H2O2 和 ABA 明显诱导气孔关闭, 并有浓度效应和时间效应; NO、H2O2 和 ABA 两两混合或三者混合施用所诱导气孔关闭的效应 大于其单独施用的。说明在诱导气孔关闭时, NO、H2O2 和 ABA 之间可能有协同效应。

关键词：NO; H2O2; ABA; 气孔关闭; 鸡蛋花; 花冠裂片

收稿：2009-12-21   修定：2010-02-02

Effects of Exogenous Nitric Oxide, Hydrogen Peroxide and Abscisic Acid on Stomatal Closure in the Corolla Lobe of Plumeria rubra L.

JIANG Zhao-Yu, WANG Yong-Fei*

Department of Biotechnology, Jinan University, Guangzhou 510632, China

Corresponding author: WANG Yong-Fei; E-mail: wyfmsm@163.com; Tel: 020-38897606

Abstract:

Using the abaxial surface of corolla lobe of Plumeria rubra as the experimental material, the effects of exogenous NO, H₂O₂ and ABA with different concentrations and different treated periods on stomatal closure and their interactional effects were studied. The results indicated that NO, H₂O₂ and ABA could induce stomatal closure dose- and time-dependently. The effects of the mixed solution of NO, H₂O₂ or ABA were greater than those of the individual processing.

Key words: NO; H₂O₂; ABA; stomatal closure; Plumeria rubra; corolla lobe