| PEG模拟干旱条件下青竹复叶槭生理指标的变化 |
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| 引用本文： | 李雪,尚忠海,孔维鹤,杨洪义,苏金乐.PEG模拟干旱条件下青竹复叶槭生理指标的变化[J].河南科学,2008,26(4):425-429. |
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| 作者姓名： | 李雪 尚忠海 孔维鹤 杨洪义 苏金乐 |
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| 作者单位： | 1. 河南农业大学,林学园艺学院,郑州,450002
2. 河南省林业技术推广站,郑州,450002 |
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| 摘 要： | 以PEG-6000(聚乙二醇)模拟不同程度的水分胁迫对青竹复叶槭幼苗进行处理,结果表明,随着胁迫浓度的增加和时间的延长,青竹复叶槭的质膜透性与MDA的含量增幅较缓;保护酶的活性明显增强,SOD活性表现为"双峰"变化曲线,CAT与SOD协同反应,呈现"N"字型的变化趋势,POD的活性则随着胁迫时间的延长经历了先降后升的变化趋势,3种保护酶协同作用,有效清除自由基,减轻干旱胁迫对细胞膜的伤害,增加了青竹复叶槭的抗旱性.
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| 关 键 词： | PEG胁迫 青竹复叶槭 生理指标 抗旱性 |
| 文章编号： | 1004-3918(2008)04-0425-05 |
| 修稿时间： | 2007年12月14 |
PEG Simulates under the Arid Condition Acer Negundo L. 'Qingzhu' Physiology Target Change |
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| Li Xue,Shang Zhonghai,Kong Weihe,Yang Hongyi,Su Jinle.PEG Simulates under the Arid Condition Acer Negundo L. 'Qingzhu' Physiology Target Change[J].Henan Science,2008,26(4):425-429. |
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| Authors: | Li Xue Shang Zhonghai Kong Weihe Yang Hongyi Su Jinle |
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| Institution: | Li Xue1,Shang Zhonghai2,Kong Weihe2,Yang Hongyi2,Su Jinle1(1.Forestry , Horticulture College,Henan Agricultural University,Zhengzhou 450002,China,2.Henan Provincial Forestry Extension Station,China) |
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| Abstract: | The polyethylene glycol-6000(PEG-6000) simulates the varying degree by the polyethylene glycol the moisture content to force to the leaf of Acer negundo L.'qingzhu' seedling carries on processing,the result indicated that,along with forces the degree the increase and time lengthening,Acer negundo L.'qingzhu' protoplasmic membrane penetrability and the third dial content forces processing in the moisture content in the process the increased range to be smaller;Protection enzyme activity after forces processi... |
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| Keywords: | PEG stress Acer negundo L \'qingzhu\' physiological indexes drought resistance |
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