| 3种海洋赤潮微藻抗氧化酶活性对UV-B辐射增强的响应 |
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| 引用本文： | 蔡恒江,唐学玺,张培玉,肖慧,于娟.3种海洋赤潮微藻抗氧化酶活性对UV-B辐射增强的响应[J].中国海洋大学学报(自然科学版),2006,36(1):81-84. |
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| 作者姓名： | 蔡恒江 唐学玺 张培玉 肖慧 于娟 |
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| 作者单位： | 中国海洋大学海洋生态学研究室,山东,青岛,266003 |
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| 基金项目： | 中国科学院资助项目;山东省青年科学家科研奖励基金 |
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| 摘 要： | 利用生物化学的方法,研究了赤潮异弯藻、亚历山大藻和中肋骨条藻抗氧化酶活性对UV-B辐射增强的响应变化。结果表明:(1)不同赤潮微藻的抗氧化酶活性对UV-B辐射增强的响应变化是不同的。(2)不同的抗氧化酶活性对UV-B辐射增强的响应变化同样存在明显的差异。(3)与过氧化氢酶(CAT)和抗坏血酸过氧化物酶(APX)相比,超氧化物歧化酶(SOD)活性对UV-B辐射增强的响应最敏感,谷胱甘肽过氧化物酶(GPX)活性的响应变化最不明显。3种赤潮微藻SOD活性的变化是指示UV-B辐射增强的优选生物学指标。
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| 关 键 词： | UV-B辐射 海洋赤潮微藻 抗氧化酶 响应 |
| 文章编号： | 1672-5174(2006)01-081-04 |
| 收稿时间： | 2005-05-08 |
| 修稿时间： | 2005-08-18 |
Response of Activitiy of Antioxidant Enzymes to UV-B Radiation Enhancement in Three Species of Red-Tide Microalgae |
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| CAI Heng-Jiang,TANG Xue-Xi,ZHANG Pei-Yu,XIAO Hui,YU Juan.Response of Activitiy of Antioxidant Enzymes to UV-B Radiation Enhancement in Three Species of Red-Tide Microalgae[J].Periodical of Ocean University of China,2006,36(1):81-84. |
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| Authors: | CAI Heng-Jiang TANG Xue-Xi ZHANG Pei-Yu XIAO Hui YU Juan |
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| Institution: | Marine Ecology Laboratory, Ocean University of China, Qingdao 266003, China |
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| Abstract: | The Change of antioxidant enzyme activity in Skeletonema costatum,Heterosigma akashiwo and Alexandrium tamarense under UV-B radiation enhancement was studied using biochemical methods.The results showed that the responses of the three species of red-tide microalgae to UV-B radiation enhancement were different,and the changes of the activities of fourantioxidant enzymes also exhibited notable difference.In addition,the activity of superoxide dismutase(SOD) was most sensitive,and glutathione peroxidase(GPX) was most insensitive to UV-B radiation enhancement compared with catalase(CAT) and ascorbic acid peroxidase(APX).Therefore,the change of SOD activity was the best biomarker to indicate UV-B radiation enhancement. |
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| Keywords: | UV-B radiation marine red-tide microalgae antioxidant enzyme response |
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