| 化感物质对小球藻抗氧化体系酶活性的影响 |
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| 中文关键词 化感物质 蛋白核小球藻 普通小球藻 抗氧化体系 |
| 英文关键词 allelochemical Chlorella pyrenoidosa Chlorella vulagaris antioxidant enzymes |
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| 中文摘要 |
| 利用水生植物产生的化感物质抑制有害藻类是一种藻类控制新技术. 本文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0.25mg/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4mg/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. |
| 英文摘要 |
| 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 0.25mg/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 4mg/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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