| 两种光照条件下白花泡桐幼苗对Pb胁迫的生理响应研究 |
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| 引用本文： | 郑巧巧,刘相宁,李月灵,罗兴,付嵩君,王江.两种光照条件下白花泡桐幼苗对Pb胁迫的生理响应研究[J].广西植物,2011,31(5):659-663. |
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| 作者姓名： | 郑巧巧 刘相宁 李月灵 罗兴 付嵩君 王江 |
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| 作者单位： | 台州学院生命科学学院,浙江 临海,317000 |
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| 基金项目： | 浙江省自然科学基金(Y5100016) ; 台州学院大学生科研项目(10XS20)~~ |
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| 摘 要： | 分析全光照和50％光照条件下,不同浓度Pb对白花泡桐根生理特性的影响,以研究白花泡桐根对Pb胁迫的生理响应机制.结果显示:超氧阴离子产生速率、过氧化氢和丙二醛含量均随Pb浓度增加而上升,而且5o％光照条件下上升趋势要低于全光照条件.全光照条件下,SOD、CAT和APX活性随Pb浓度增加呈现先上升再下降的趋势,而POD活...
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| 关 键 词： | 光 铅 白花泡桐 抗氧化性 |
Effect of two light irradiances on physiological response of Paulownia fortunei seedling roots to Pb stress |
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| ZHENG Qiao-Qiao,LIU Xiang-Ning,LI Yue-Ling,LUO Xing,FU Song-Jun,WANG Jiang.Effect of two light irradiances on physiological response of Paulownia fortunei seedling roots to Pb stress[J].Guihaia,2011,31(5):659-663. |
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| Authors: | ZHENG Qiao-Qiao LIU Xiang-Ning LI Yue-Ling LUO Xing FU Song-Jun WANG Jiang |
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| Institution: | ZHENG Qiao-Qiao,LIU Xiang-Ning,LI Yue-Ling,LUO Xing,FU Song-Jun,WANG Jiang* ( School of Life Sciences,Taizhou University,Linhai 317000,China ) |
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| Abstract: | The physiological responses of P.fortunei seedling roots to Pb stress under natural light and 50% natural light treatments were investigated. Results showed that production rate of superoxide anion,hydrogen peroxide and MDA contents consistently increased with the increase of added Pb. Compared to natural light treatment,their increasing trends were less sharper under 50% natural light treatment. Under natural light treatment,the activities of SOD,CAT and APX increased firstly and then decreased with the in... |
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| Keywords: | light Pb Paulownia fortunei antioxidant |
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