| 瑞典能源柳无性系保护酶活性对水分胁迫的响应 |
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| 引用本文： | 王贞红
,,张文辉
,何景峰
ˇ,周建云
,卢彦昌
,郭其强
.瑞典能源柳无性系保护酶活性对水分胁迫的响应[J].西北林学院学报,2008,23(3). |
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| 作者姓名： | 王贞红 张文辉 何景峰
ˇ 周建云 卢彦昌 郭其强 |
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| 作者单位： | 1.西北农林科技大学林学院， 陕西 杨陵 712100;2.西藏大学农学院， 西藏 林芝 8
60000;
3.陕西华圣实业（集团）股份有限公司，陕西 西安 710068 |
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| 摘 要： | 为了鉴别不同品种的柳树（Salix）耐旱性，对4个无性系的 1 a生硬枝扦插苗进
行了控制
条件下的土壤干旱胁迫试验，系统测定了超氧化物歧化酶（SOD）和过氧化氢酶（CAT）
活性、MDA
（丙二醛）含量、膜透性。结果表明，在土壤干旱胁迫下，C号和2号抗氧化能力较强，
红柳居中，4
号的表现最差。干旱胁迫使各品种MDA的含量及膜透性均有不同程度的提高，其中C号的
MDA
含量及膜透性比较平稳，4号变化剧烈。在干旱胁迫下，各品种渗透调节和保持膨压的能
力均有提
高，但存在差异，以C号和2号表现较好，红柳居中，4号较差。应用Fuzzy方法，对不同
品种的保
护酶活性和膜透性在干旱胁迫中的动态进行综合评判，认为不同品种的耐旱性强度次序
为:C号>
2号>红柳>4号。其中C号与4号和红柳差异显著（ p <0.05）。
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| 关 键 词： | 柳树 水分胁迫 保护酶活性 综合评价 |
Water Adaptation and Responses of Cell Defense Enzyme to Young Se
edling of
Different Clones of Salix under the Water Stress |
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| WANG Zhenˉhong
,,ZHANG Wenˉhui
,HE Jingˉfeng
ˇ,ZHOU Jianˉyun
,LU Yanˉchang
,GUO Qiˉqiang
.Water Adaptation and Responses of Cell Defense Enzyme to Young Se
edling of
Different Clones of Salix under the Water Stress[J].Journal of Northwest Forestry University,2008,23(3). |
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| Authors: | WANG Zhenˉhong ZHANG Wenˉhui HE Jingˉfeng
ˇ ZHOU Jianˉyun LU Yanˉchang GUO Qiˉqiang |
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| Institution: | 1.College of Forestry， Northwest A&F University，Yangling，Shaanxi712
1001，China;
2. College of Agriculture，Tibet University，Linzhi，Tibet 860000，China;
3.Shaanxi Huasheng（Group） Co.Ltd， Xi’an，Shaanxi 710068，China |
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| Abstract: | Differences of the droughtˉresistance characteristics of vari
ous clones of Salix were investigated.
The changes of superoxide dismutas （SOD）activity，catalase （CAT） acti
vity and malonadehyde（MDA）
content，electrolyte leakage in the different species of Salix were s
tudied systematically after treated by soil
drought stress.The results showed that same condition of soil drough
t stress， Salix viminalis and Salix
dasyclados exhibied a better performance of antiˉoxidation， while S.
purpurea performed middle， and S.
mesuneko from north slope of Bashan performed worst.With the develo
pment of soil drought stress， there
was the accumulation of MDA for different provinces to different e
xtent; Change rate of MDA content and
electrolyte leakage were low in Salix viminalis， high in S.mesuneko，
middle in S. dasyclados and S. purˉ
purea.All species had the abilities to maintain distinction among t
he species was considerable. Salix vimiˉ
nalis and S.dasyclados showed a betterturgor and osmotic adjustment du
ring the drought stress in given
condition. However， the performance in the turgor maintain and the
osmotic adjustment，S. purpurea
performed normally and S.mesuneko performed worst. According to fuzzy s
ynthetic evaluation， the
drought resistances of different species were evaluated. |
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| Keywords: | Salix water stress defense emzyme synthetic evaluation |
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