| 土壤干旱胁迫对Larrea tridentata叶片膜脂过氧化和保护酶活性的影响 |
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| 引用本文： | 张香凝,崔令军,王保平,孙向阳,孟伟,杨超伟,夏莘,乔杰.土壤干旱胁迫对Larrea tridentata叶片膜脂过氧化和保护酶活性的影响[J].生态环境,2010,19(11):2587-2591. |
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| 作者姓名： | 张香凝 崔令军 王保平 孙向阳 孟伟 杨超伟 夏莘 乔杰 |
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| 作者单位： | [1]河南省农业科学院 植物营养与资源环境研究所,河南郑州450002 [2]北京林业大学水土保持学院 教育部水土保持与荒漠化防治重点实验室,北京100083 [3]国家林业局泡桐研究开发中心,河南郑州450003 |
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| 基金项目： | 国家林业局"948"项目 |
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| 摘 要： | Larrea tridentata是一种亚热带沙漠中常绿的含树脂的灌木,有很高的生态价值和药用价值。在不同土壤干旱胁迫条件下,测量了L.tridentata叶片具有生物学活性物质的含量变化。结果表明,随着土壤水分胁迫的加重,L.tridentata保护酶活性与MDA含量的整体趋势都是先升高,在土壤水势达到-2.415 MPa时,有所下降。L.tridentata体内重要的渗透调节物质脯氨酸的质量分数总体成上升趋势。可见,保护酶及渗透调节对L.tridentata提高自身的抗旱性有重要作用。
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| 关 键 词： | Larrea tridentate 抗旱性 酶活性 渗透调节 |
Effect of soil drought stress on the lipid peroxidation and the activity of protective enzyme in Larrea tridentata |
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| ZHANG Xiangning,CUI Lingjun,WANG Baoping,SUN Xiangyang,QIAO Jie,MENG Wei,YANG Chaowei,XIA Xin.Effect of soil drought stress on the lipid peroxidation and the activity of protective enzyme in Larrea tridentata[J].Ecology and Environmnet,2010,19(11):2587-2591. |
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| Authors: | ZHANG Xiangning CUI Lingjun WANG Baoping SUN Xiangyang QIAO Jie MENG Wei YANG Chaowei XIA Xin |
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| Institution: | 3,MENG Wei3,YANG Chaowei3,XIA Xin3 1.Henan Academy of Agricultural Sciences,Institute of plant nutrition,resources and environment,Zhengzhou 450002,China; 2.Beijing Forestry University,Beijing 100083,China;3.Paulownia Research and Development Center of China,Zhengzhou 450003,China |
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| Abstract: | Larrea tridentata is an ever-green shrub species containing resin and it distributes in subtropical desert area,which has high ecological and medical value.In this paper,we determined the activity of enzyme and the content of MDA of L.tridentata under different soil water potential condition.The results shows that with the increase of soil moisture stress,the activity of enzyme and the content of MDA of L.tridentata increased at first and then dropped when the soil water potential achieved at-2.415 MPa.As an important osmotic regulator of L.tridentata,the overall content of Proline increased.Our result revealed that protective enzyme and osmoregulation promotes resistance to draught of L.tridentata. |
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| Keywords: | Larrea tridentate drought resisitance the activity of enzyme osmotic regulator |
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