| 茶陵野生稻苗期耐冷性与抗氧化系统的关系 |
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| 引用本文： | 陈志,易向军,张俊,徐孟亮,陈良碧.茶陵野生稻苗期耐冷性与抗氧化系统的关系[J].生命科学研究,2010,14(1):67-72. |
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| 作者姓名： | 陈志 易向军 张俊 徐孟亮 陈良碧 |
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| 作者单位： | 1. 湖南师范大学,生命科学学院,中国湖南,长沙,410081
2. 湖南师范大学,生命科学学院,中国湖南,长沙,410081;中国科学院,亚热带农业生态研究所,中国湖南,长沙,410125 |
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| 基金项目： | 湖南省自然科学基金资助项目 |
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| 摘 要： | 为探讨茶陵野生稻苗期耐冷的生理机制,以耐冷性强弱不同的栽培稻及东乡野生稻为对照,研究了茶陵野生稻苗期冷胁迫后抗氧化系统的变化.结果表明,茶陵野生稻经冷胁迫后,超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性以及抗坏血酸(AsA)、还原型谷胱甘肽(GSH)含量增加幅度大于冷敏感对照,而稍小于或相当于耐冷对照;超氧阴离子(O2)产生速率和丙二醛(MDA)含量低于冷敏感对照品种,而稍高于或相当于耐冷对照.说明茶陵野生稻苗期耐冷性与其抗氧化系统冷胁迫后的适应性变化密切相关.
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| 关 键 词： | 普通野生稻 耐冷性 抗氧化系统 |
Studies on the Relation Between the Reactive Oxygen Species Scavengers and Cold Tolerance of Chaling Wild Rice (Oryza rufipogon Griff.) at Seedling Stage |
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| CHEN Zhi,YI Xiang-jun,ZHANG Jun,XU Meng-liang,CHEN Liang-bi.Studies on the Relation Between the Reactive Oxygen Species Scavengers and Cold Tolerance of Chaling Wild Rice (Oryza rufipogon Griff.) at Seedling Stage[J].Life Science Research,2010,14(1):67-72. |
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| Authors: | CHEN Zhi YI Xiang-jun ZHANG Jun XU Meng-liang CHEN Liang-bi |
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| Institution: | CHEN Zhi1,YI Xiang-jun1,ZHANG Jun1,XU Meng-liang1,2,CHEN Liang-bi1 (1.College of Life Sciences,Hunan Normal University,Changsha 410081,Hunan,China,2.Institute of Subtropcial Agriculture,Chinese Academy of Sceinces,Changsha 410125,China) |
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| Abstract: | In order to explore the physiological and biochemical mechanism of Chaling wild rice (O.rufipogon Griff.) at seedling stage,the effect of chilling stress on the reactive oxygen species (ROS) scavenging system in Chaling wide rice was studied using Dongxiang wild rice (O.rufipogon Griff.)and 4 rice cultivars (O.sativa L.)of differential cold tolerance as controls.The results indicated that under low temperature,the increasing extent of the activity of superoxide dismutase (SOD),peroxidase (POD),catalase(CAT)... |
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| Keywords: | Oryza rufipogon griif chilling tolerance ROS scavenging system |
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