| 失水胁迫对五叶地锦生理生化指标的影响 |
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| 引用本文： | 康雯,刘晓东,何淼.失水胁迫对五叶地锦生理生化指标的影响[J].东北林业大学学报,2009,37(6). |
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| 作者姓名： | 康雯 刘晓东 何淼 |
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| 作者单位： | 东北林业大学,哈尔滨,150040 |
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| 摘 要： | 以五叶地锦(Parthenocissus quinquefolia (L.) Pan-ch.)盆栽幼苗为实验材料,分析了失水胁迫对其幼苗生理生化指标的影响.结果表明:水分胁迫对五叶地锦幼苗的几个生理指标影响显著;随着干旱胁迫时间的延长,叶片相对含水量和土壤含水量呈显著下降趋势,叶片水分饱和亏缺逐渐增大;质膜相对透性增大,丙二醛(MDA)质量摩尔浓度增加;脯氨酸质量分数、可溶性蛋白质量分数都随着胁迫时间的延长而逐渐升高;随着干旱胁迫程度的加深,超氧化物歧化酶(SOD)的活性呈现先升高后下降的趋势.
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| 关 键 词： | 失水胁迫 五叶地锦 生理生化指标 |
Effect of Water Deficit Stress on Physiological and Biochemical Indexes of Parthenocissus quinquefolia |
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| Kang Wen,Liu Xiaodong,He Miao.Effect of Water Deficit Stress on Physiological and Biochemical Indexes of Parthenocissus quinquefolia[J].Journal of Northeast Forestry University,2009,37(6). |
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| Authors: | Kang Wen Liu Xiaodong He Miao |
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| Institution: | Kang Wen,Liu Xiaodong,He Miao(College of L,scape Architecture,Northeast Forestry University,Harbin 150040,P.R.China) |
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| Abstract: | An experiment was conducted to study the effect of water stress on the physiological and biochemical indexes of Parthenocissus quinquefolia potted seedlings.Results showed that water stress had a significant effect on some physiological indexes of P.quinquefolia seedlings.With the prolonged drought stress,leaf relative water content and soil water content significantly decreased,while leaf water saturation deficit,relative plasmalemma permeability,as well as contents of MDA,proline and soluble protein all i... |
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| Keywords: | Water stress Parthenocissus quinquefolia Physiological and biochemical indexes |
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