| UV-B辐射对青岛大扁藻生长及其某些生理特性的影响 |
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| 引用本文： | 蔡恒江,唐学玺,张培玉,于娟. UV-B辐射对青岛大扁藻生长及其某些生理特性的影响[J]. 海洋科学进展, 2005, 23(4): 460-465 |
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| 作者姓名： | 蔡恒江 唐学玺 张培玉 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;中国海洋大学,海洋生态学研究室,山东,青岛,266003;曲阜师范大学,生命科学学院,山东,曲阜,273165 |
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| 基金项目： | 国家自然科学基金项目--海洋微藻对UVB辐射增强和二氧化碳加富的复合响应研究（30270258）;山东省优秀中青年科学家科研奖励基金--UV-B辐射增强的海洋生物指示技术研究（03BS120） |
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| 摘 要： | 通过实验生态学和生物化学的方法，研究了UV-B辐射对青岛大扁藻生长及其叶绿素a（Chl-a）含量、可溶性蛋白含量、过氧化氢（H2O2）含量、丙二醛（MDA）含量和超氧化物歧化酶（SOD）活力的影响。结果表明：UV-B辐射会抑制青岛大扁藻的生长并对其生理特性产生明显的影响。经过UVB辐射后，Chl-a含量和可溶性蛋白含量在初始阶段（0～3d）有所增加，而后却出现极显著的下降；过氧化氢含量、丙二醛含量和超氧化物歧化酶活力则呈现升高的趋势。
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| 关 键 词： | UV-B辐射 青岛大扁藻 生理特性 活性氧自由基 |
| 文章编号： | 1671-6647(2005)04-0460-06 |
| 收稿时间： | 2004-11-15 |
| 修稿时间： | 2004-11-15 |
Effects of UV-B Radiation on the Growth and Physiological Characteristics of Platymonas Gelgolandica |
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| CAI Heng-jiang,TANG Xue-xi,ZHANG Pei-yu,YU Juan. Effects of UV-B Radiation on the Growth and Physiological Characteristics of Platymonas Gelgolandica[J]. Advances in Marine Science, 2005, 23(4): 460-465 |
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| Authors: | CAI Heng-jiang TANG Xue-xi ZHANG Pei-yu YU Juan |
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| Affiliation: | 1. Laboratory of Marine Ecology, Ocean University of China, Qingdao 266003, China; 2. College of Life Science, Qufu Normal University, Qufu 273165, China |
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| Abstract: | The effects of UV-B radiation on the growth and physiological characteristics including Chl-a content,soluble protein content,H_2O_2 cntent,MOD content and SOD activity of Platymonas gelgolandica were studied by using experimental ecology and biochemical methods.It is shown from the study results that UV-B radiation could inhibit the growth of Platymonas gelgolandica and affect its physiological characteristics significantly.Having been exposed to UV-B radiation,the soluble protein content and Chl-a conent in significantly;whereas H_2O_2 content,MDA content and SOD activity showed an increasing trend at UV-B radiation. |
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| Keywords: | UV-B radiation Platymonas gelgolandica physiological characteristic reactive oxygen species(ROS) |
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