| 水杨酸对镉胁迫下玉米幼苗质膜透性和保护酶活性的影响 |
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| 引用本文： | 李彩霞,李鹏,苏永发,郑普勤,张芬琴,张勇.水杨酸对镉胁迫下玉米幼苗质膜透性和保护酶活性的影响[J].植物生理学通讯,2006,42(5):882-884. |
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| 作者姓名： | 李彩霞 李鹏 苏永发 郑普勤 张芬琴 张勇 |
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| 作者单位： | 河西学院生物系,甘肃,张掖,734000 |
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| 摘 要： | 在Cd^2＋胁迫下，添加外源水杨酸（SA）的培养液中生长的玉米幼苗叶中超氧化物歧化酶（SOD）、过氧化物酶（POD）和过氧化氢酶（CAT）的活性均提高，质膜透性降低，丙二醛（MDA）的积累减少，显示SA对Cd^2＋胁迫具有一定的缓解效应。
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| 关 键 词： | 水杨酸 镉 玉米 质膜透性 保护酶 |
| 收稿时间： | 2006-02-27 |
| 修稿时间： | 2006-09-18 |
Effect of Salicylic Acid on Permeability of Plasma Membrane and Activities of Protect Enzymes of Maize (Zea mays L.) Seedlings under Cadmium Stress |
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| LI Cai-Xia,LI Peng,SU Yong-Fa,ZHENG Pu-Qin,ZHANG Fen-Qin,ZHANG Yong.Effect of Salicylic Acid on Permeability of Plasma Membrane and Activities of Protect Enzymes of Maize (Zea mays L.) Seedlings under Cadmium Stress[J].Plant Physiology Communications,2006,42(5):882-884. |
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| Authors: | LI Cai-Xia LI Peng SU Yong-Fa ZHENG Pu-Qin ZHANG Fen-Qin ZHANG Yong |
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| Institution: | Department of Biology, Hexi College, Zhangye, Gansu 734000, China |
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| Abstract: | Effects of exogenous salicylic acid (SA) on permeability of plasma membrane and protective en-zymes activities in leaves of maize (Zea mays L.) seedlings under different concentrations of Cd2+ stress were studied.The results showed that exogenous SA could remarkably promote the activities of SOD,POD and CAT,delay the accumulation of MDA,and decrease the electrolyte leakage in maize seedling leaves under Cd2+ stress.So exogenous SA could mitigate the stress of Cd2+. |
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| Keywords: | salicylic acid cadmium maize (Zea mays L ) plasma membrane permeability protect enzyme |
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