| 满江红对Ce~(3+)胁迫的生理生化应答反应研究 |
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| 引用本文： | 王学.满江红对Ce~(3+)胁迫的生理生化应答反应研究[J].安徽农业科学,2010,38(2):704-705. |
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| 作者姓名： | 王学 |
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| 作者单位： | 山东理工大学生命科学学院,山东淄博,255049 |
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| 基金项目： | 国家自然科学基金(30900071);;山东理工大学博士科研启动经费(4041-406027) |
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| 摘 要： | 目的]探讨了满江红对Ce^3＋胁迫的生理生化应答反应机制。方法]以水生蕨类植物满江红Azolla imbricata（Roxb．）Nakai]为试验材料，研究了其叶绿素含量、光舍放氧速率和抗氧化酶（SOD、CAT、POD）活性随Ce^3＋浓度的变化情况。结果]随着Ce^3＋浓度的升高，SOD、CAT、POD活性均出现不同程度的应激性升高，而后降低；叶绿素含量、光合放氧速率呈现出先升后降的变化趋势。结论]在低浓度Ce^3＋处理下，满江红通过增强其抗氧化能力，提高了其对Ce^3＋胁迫的抵抗力；但随着Ce^3＋浓度的加大，满江红的抗氧化能力逐渐减弱．表现出抑制效应。
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| 关 键 词： | 满江红 Ce~(3+) 生理生化 |
Study on the Physiological and Biochemical Responses of Azolla imbricata (Roxb.)Nakai to Ce~(3+) Stress |
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| WANG Xue.Study on the Physiological and Biochemical Responses of Azolla imbricata (Roxb.)Nakai to Ce~(3+) Stress[J].Journal of Anhui Agricultural Sciences,2010,38(2):704-705. |
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| Authors: | WANG Xue |
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| Institution: | College of Life Science;Shandong University of Technology;Zibo;Shandong 255049 |
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| Abstract: | Objective] The purpose was to discuss the mechanism of physiological and and biochemical responses of Azolla imbricata(Roxb.)Nakai to Ce3+ Stress.Method] With Azolla imbricata(Roxb.)Nakai as tested materials,the toxic effect of different gradient concentrations of Ce3+ stress on chlorophyll contents,photosythentic O2 evolution rate,and antioxidase system(SOD,CAT,POD) was studied.Result] The results showed that Ce3+ stimulated the activities of SOD,CAT,POD at lower concentration,and decreased drastically ... |
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| Keywords: | Ce~(3+) Azolla imbricata (Roxb ) Nakai Ce~(3+) Physiology and biochemistry |
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