| NaCl胁迫对塔河下游铃铛刺种子萌发的影响及生理效应 |
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| 引用本文： | 史小丽,叶茂,王晓峰,龚君君,李媛.NaCl胁迫对塔河下游铃铛刺种子萌发的影响及生理效应[J].种子,2010,29(12). |
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| 作者姓名： | 史小丽 叶茂 王晓峰 龚君君 李媛 |
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| 作者单位： | 新疆师范大学地理科学与旅游学院;自治区重点实验室-干旱区湖泊环境与资源实验室;新疆环境监测中心; |
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| 基金项目： | 国家自然科学基金，自治区高校科研计划青年教师科研启动基金，新疆师范大学校级博士科研启动基金，新疆师范大学研究生科技创新基金 |
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| 摘 要： | 通过9个浓度水平的盐溶液对塔河下游铃铛刺种子的萌发进行胁迫试验,分析铃铛刺萌发体内丙二醛(MDA)、超氧化物歧化酶(SOD)、过氧化物酶(POD)和游离脯氨酸(Pro)4个生理指标随盐浓度的变化特征。研究结果表明:随着盐胁迫的增加,POD和SOD活性变化不大,Pro含量呈现先上升后下降趋势,而MDA含量变化规律不明显;与对照水平(0 mol/L NaCl)相比,POD和SOD表现出较高的酶活性;Pro含量在NaCl溶液浓度为0.2 mol/L时达到最高值,而MDA的含量降低到最低值。该研究结果可为塔里木河下游受损生态系统的恢复、重建提供参考和理论依据。
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| 关 键 词： | 盐胁迫 铃铛刺 保护酶 NaCl |
Effect of NaCl Stress on Seed Germination and Physiology of Halimodendron halodendron in the Lower Reaches of Tarim River,Xinjiang,China |
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| SHI Xiao-li,YE Mao,WANG Xiao-feng,GONG Jun-jun,LI Yuan.Effect of NaCl Stress on Seed Germination and Physiology of Halimodendron halodendron in the Lower Reaches of Tarim River,Xinjiang,China[J].Seed,2010,29(12). |
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| Authors: | SHI Xiao-li YE Mao WANG Xiao-feng GONG Jun-jun LI Yuan |
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| Institution: | SHI Xiao-li1,YE Mao1,2,WANG Xiao-feng1,GONG Jun-jun1,LI Yuan3(1.College of Earth Science and Tourism,Xinjiang Normal University,Urumqi 830054,China,2.Key Laboratory of Lake Environment and Resources in Arid Zone,3.Xinjiang Center of Environmental Monitor,Urumqi 830011,China) |
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| Abstract: | In this paper,Halimodendron halodendron seeds germination which located in the lower reaches of Tarim were studied under 9 different salt solutions stress,and analyzed the change of MDA,SOD,POD and Pro four physiology indexs of Halimodendron halodendron seedlings along with the salt thickness.The resulted indicated that: with the salt thickness increasing,the activity of POD and SOD had little change,the content of Pro increased firstly and then decreased,and the change of MDA content was not obvious.Compar... |
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| Keywords: | salt stress Halimodendron halodendron protective enzymes NaCl |
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