| 淹水胁迫对铺地黍几种保护酶活性的影响 |
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| 引用本文： | 詹嘉红,林建平,蓝宗辉.淹水胁迫对铺地黍几种保护酶活性的影响[J].生物技术,2010,20(2):67-69. |
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| 作者姓名： | 詹嘉红 林建平 蓝宗辉 |
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| 作者单位： | 1. 韩山师范学院生物系,广东潮州,521041
2. 广州地理研究所,广东广州,510070 |
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| 基金项目： | 广东省自然科学基金项目 |
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| 摘 要： | 目的:探讨淹水胁迫对铺地黍几种保护酶活性的影响.方法:通过模拟试验,研究不同淹水时间对铺地黍体内超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)及多酚氧化酶(PPO)活性的影响.结果:在淹水胁迫前期,铺地黍体内SOD、CAT和PPO活性总体表现为升高的变化特征.之后,随着胁迫时间的延长,3种酶活性均逐渐降低,在淹水5w时,SOD、CAT和PPO活性分别为对照的38.7%、50.3%和178.2%.而在整个淹水期间POD活性则一直呈升高的趋势.结论:几种保护酶对淹水胁迫的响应能力有差异,其中SOD、CAT活性的变化可作为铺地黍对淹水反应的生理指标.
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| 关 键 词： | 淹水胁迫 铺地黍 保护酶 消落带 |
Effects of Waterlogging Stress on the Activity of Some Protective Enzymes in Panicum repens |
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| ZHAN Jia-hong,LIN Jian-ping,LAN Zong-hui.Effects of Waterlogging Stress on the Activity of Some Protective Enzymes in Panicum repens[J].Biotechnology,2010,20(2):67-69. |
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| Authors: | ZHAN Jia-hong LIN Jian-ping LAN Zong-hui |
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| Institution: | ZHAN Jia-hong1,LIN Jian-ping2,LAN Zong-hui1(1.Department of Biology,Hanshan Normal College,Chaozhou 521041,China,2.Guangzhou Institute of Geography,Guangzhou 510070,China) |
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| Abstract: | Objective:It was to search the activity of protective enzymes to waterlogging stress on Panicum repens.Method:In this paper,the effects of various waterlogging time length on the activity of superoxide dismutase(SOD),catalase(CAT),peroxidase(POD)and polyphenol oxidase(PPO)in Panicum repens were studied by simulated experiment.Result:The activity of SOD,CAT and POD tended to increase under waterlogging stress at early days.As the time of treatment increased,the activity of the three enzymes was decreased gra... |
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| Keywords: | waterlogging stress Panicum repens protective enzymes water - fluctuating zone |
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