| 化感物质对小球藻抗氧化体系酶活性的影响 |
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| 引用本文： | 李锋民,胡洪营,门玉洁,洪喻,郭美婷.化感物质对小球藻抗氧化体系酶活性的影响[J].环境科学,2006,27(10):2091-2094. |
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| 作者姓名： | 李锋民 胡洪营 门玉洁 洪喻 郭美婷 |
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| 作者单位： | 1. 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京,100084;中国海洋大学环境科学与工程学院,青岛,266003
2. 清华大学环境科学与工程系环境模拟与污染控制国家重点联合实验室,北京,100084 |
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| 基金项目： | 国家“十五”科技攻关计划项目(2004BA809B0402) |
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| 摘 要： | 利用水生植物产生的化感物质抑制有害藻类是1种藻类控制新技术.研究了选择性抑藻化感物质EMA对蛋白核小球藻和普通小球藻抗氧化酶体系活性的影响.结果显示,化感物质浓度为0.25 mg/L时,2种藻类的超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性都高于对照组.但随着化感物质浓度的升高,蛋白核小球藻3种酶活性都逐渐下降,当化感物质浓度为4 mg/L时,SOD活性为0;而普通小球藻的酶活性随着化感物质浓度升高持续升高,都达到对照组的3～4倍.
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| 关 键 词： | 化感物质 蛋白核小球藻 普通小球藻 抗氧化体系 |
| 文章编号： | 0250-3301（2006）10-2091-04 |
| 收稿时间： | 2005-11-10 |
| 修稿时间： | 2005-11-102005-12-02 |
Effects of EMA on activities of algal antioxidant enzymes |
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| LI Feng-min,HU Hong-ying,MEN Yu-jie,HONG Yu and GUO Mei-ting.Effects of EMA on activities of algal antioxidant enzymes[J].Chinese Journal of Environmental Science,2006,27(10):2091-2094. |
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| Authors: | LI Feng-min HU Hong-ying MEN Yu-jie HONG Yu and GUO Mei-ting |
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| Institution: | 1. Environmental Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China; 2. College of Environmental Science and Engineering, Ocean University of China,,1. Environmental Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China,1. Environmental Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China,1. Environmental Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China,1. Environmental Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | Using allelochemicals produced by macrophytes to control harmful algae is a novel antialgal method. The present research investigated effects of the species-specific antialgal allelochemical EMA on activities of antioxidant enzymes of Chlorella pyrenoidosa and Chlorella vulagaris. The results showed that 0.25 mg/L of EMA increased activities of superoxide dismutase (SOD), peroxidase (POD)and catalase (CAT) of C. pyrenoidosa and C. vulagaris. With the increase of EMA concentrations, activities of the 3 enzymes of C. pyrenoidosa decreased sharply. The activity of SOD of C. pyrenoidosa decreased to 0 when the EMA were 4 mg/L. With the increase of EMA concentrations, activities of the 3 enzymes of C. vulagaris increased to as higher as 3-4 folders of that of the control set. The results gave hints to elucidate the species-specific antialgal mechanisms of EMA. |
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| Keywords: | allelochemical Chlorella pyrenoidosa Chlorella vulagaris antioxidant enzymes |
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