| 汽车尾气污染对2种针叶树苗木膜脂过氧化及保护酶活性的影响 |
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| 引用本文： | 关楠,聂庆娟,刘朝华,孟朝,李彦慧.汽车尾气污染对2种针叶树苗木膜脂过氧化及保护酶活性的影响[J].河北林果研究,2008,23(3). |
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| 作者姓名： | 关楠 聂庆娟 刘朝华 孟朝 李彦慧 |
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| 作者单位： | 1. 河北农业大学,河北,保定,071000
2. 河北林木良种繁育场,河北,易县,074200 |
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| 基金项目： | 河北省林业科学技术研究项目，河北农业大学校科研和教改项目 |
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| 摘 要： | 试验以油松、华山松2种针叶树的盆栽2 a生实生苗为试材,采用静态熏气法,将苗木用不同浓度(0.0、0.6、1.0、1.6、2.5、3.1、4.1 mg/m3)的标准汽车尾气处理72 h,研究了汽车尾气对2种苗木叶片的相对电导率、MDA含量、SOD和POD酶活性的影响。结果表明,随着处理浓度的增加,2种苗木的叶片MDA和相对电导率整体呈上升趋势;两树种叶片POD和油松SOD活性呈现先上升后下降的变化趋势,而华山松SOD活性呈现逐渐升高变化趋势。对2种苗木的抗性进行综合比较得出华山松抗汽车尾气污染的能力较强。
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| 关 键 词： | 汽车尾气 针叶树 MDA 相对电导率 SOD POD |
Effects of traffic emissions on membrane lipid peroxidation and protective enzyme activities of two conifer species |
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| GUAN Nan,NIE Qing-juan,LIU Zhao-hua,MENG Zhao,LI Yan-hui.Effects of traffic emissions on membrane lipid peroxidation and protective enzyme activities of two conifer species[J].Hebei Journal of Forestry and Orchard Research,2008,23(3). |
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| Authors: | GUAN Nan NIE Qing-juan LIU Zhao-hua MENG Zhao LI Yan-hui |
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| Abstract: | To study the ability of adaptation to traffic emissions,two-year-old seedlings of the Pinus tabulaeformis,Pinus armandii Franch were used as the materials.Putting the materials in polluted gas chambers,the effect of automobile exhaust on some physiological indexes in the two conifer species were studied by exposing the materials to the different exhaust gas concentration(0.6,1.0,1.6,2.5,3.1and 4.1 mg/m3) for same duration of 72 h.The results showed that with increasing automobile exhaust concentration,mal-ondialdehyde(MDA) contents and the relative conductivity increased,superoxide dismutase(SOD) and peroxidase(POD) activites of two species and superoxide dismutase(SOD) of Pinus tabulaeformis first increased then decreased,but superoxide dismutase(SOD) of Pinus armandii increased in all treatments.Pinus armandii Franch had higher ability of pollution resistance comprehensively judged with all indexes. |
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| Keywords: | traffic emissions conifer species MDA relative leakage of electrolytes SOD POD |
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