| La（Ⅲ）对UV—B辐射胁迫下大豆幼苗光氧化作用的影响 |
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| 引用本文： | 彭倩,周青,叶亚新,吕东岳.La（Ⅲ）对UV—B辐射胁迫下大豆幼苗光氧化作用的影响[J].中国农业气象,2007,28(4):386-388. |
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| 作者姓名： | 彭倩 周青 叶亚新 吕东岳 |
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| 作者单位： | 1. 江南大学工业生物技术教育部重点实验室,无锡,214222
2. 江南大学工业生物技术教育部重点实验室,无锡,214222;苏州科技学院生物学系 |
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| 基金项目： | 国家自然科学基金;国家发展和改革委员会资助项目 |
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| 摘 要： | 采用水培实验法研究了稀土La（Ⅲ）对紫外辐射（UV—B：0．15Wm^-2，0．45Wm^-2）胁迫下大豆（Glycinemax）幼苗体内O2^-和H2O2积累、抗坏血酸过氧化物酶（AsA—POD）活性变化和叶绿素（chl）光氧化降解的影响。实验结果表明：La（Ⅲ）可降低大豆幼苗体内的O2^-和H2O2含量、提高AsA—POD的活性，从而减轻光氧化作用对大豆幼苗chl的降解及对植株的伤害。
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| 关 键 词： | La UV—B辐射 大豆幼苗 光氧化作用 |
| 修稿时间： | 2007-03-25 |
Influence of La on Light Oxidation of Soybean Seedling under Ultraviolet-B Stress |
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| PENG Qian,ZHOU Qing,YE Ya-xin,Lü Dong-yue.Influence of La on Light Oxidation of Soybean Seedling under Ultraviolet-B Stress[J].Chinese Journal of Agrometeorology,2007,28(4):386-388. |
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| Authors: | PENG Qian ZHOU Qing YE Ya-xin Lü Dong-yue |
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| Institution: | 1. Key Laboratory of Industrial Biotechnology, Ministry of Education, Southern Yangtze University, Wuxi 214222, China; 2. Department of Biology, Suzhou Science and Technology College |
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| Abstract: | The influence of Lanthanum (La) on light oxidation of soybean (Glycine max) seedling under elevated ultraviolet-B radiation (UV-B: 0.15Wm-2, 0.45Wm-2) was studied. The accumulation of O-2, H2O2, the changes of activity of AsA-POD and the effects of chlorophyll degradation caused by light oxidation. It was concluded that La could reduce the content of O-2 and H2O2 in the soybean seedling and increase the activity of AsA-POD. Therefore, La alleviated the chlorophyll degradation and the damage of soybean seedling caused by light oxidation. |
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| Keywords: | La |
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