| 硒对除草剂胁迫下水稻幼苗活性氧清除系统响应的作用 |
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| 引用本文： | 张承东,韩朔睽,魏钟波. 硒对除草剂胁迫下水稻幼苗活性氧清除系统响应的作用[J]. 环境科学, 2002, 23(4): 93-96 |
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| 作者姓名： | 张承东 韩朔睽 魏钟波 |
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| 作者单位： | 南京大学环境科学系,污染控制与资源化国家重点实验室,南京,210093 |
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| 基金项目： | 国家自然科学基金资助项目(29877012) |
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| 摘 要： | 研究了在除草剂苯噻草胺毒害下硒对水稻幼苗体内活性氧清除系统的影响.结果表明,硒缓解了苯噻草胺对水稻幼苗的毒害,表现为株高、根长变化,植株体内叶绿素、蛋白质、谷胱甘肽GSH含量的提高和抗氧化酶活性的增加,·O2、H2O2等活性氧和膜脂过氧化产物MDA含量降低,自氧化速率减慢.经2个样本个体差均值的配对t检验,验证Se处理对水稻具有显著效应.
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| 关 键 词： | 硒 苯噻草胺 水稻 活性氧清除系统 |
| 文章编号： | 0250-3301(2002)04-04-0093 |
| 收稿时间： | 2001-01-26 |
| 修稿时间： | 2001-01-26 |
Effect of Selenium on the Response of the Active Oxygen Scavenging System in the Leaves of Paddy Rice under the Stress of Herbicide |
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| Zhang Chengdong,Han Shuokui and Wei Zhongbo. Effect of Selenium on the Response of the Active Oxygen Scavenging System in the Leaves of Paddy Rice under the Stress of Herbicide[J]. Chinese Journal of Environmental Science, 2002, 23(4): 93-96 |
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| Authors: | Zhang Chengdong Han Shuokui Wei Zhongbo |
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| Affiliation: | State Key Laboratory of Pollution Control and Reuse, Department of Environment Science, Nanjing University, Nanjing 210093. |
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| Abstract: | The effects of selenium on the protection system in the leaves of paddy rice were studied under the stress of herbicide mefenacet. The results showed that selenium could cause increase of the height and root length, enhanced the contents of protein, glutathione(GSH) and the activities of antioxidant enzyme, leading to decreased level of activated oxygen and malondialdehyde(MDA), slowering the autoxidation rate. All these could alleviate the harmful effect of mefenacet on paddy rice. The paired t test results showed that the effect of selenium on the response of the active oxygen scavenging system were significant. |
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| Keywords: | selenium mefenacet paddy rice scavenging system of activated oxygen |
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