| Cd、Pb与酸雨复合污染对油菜种子萌发和幼苗保护酶活性的影响 |
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| 引用本文： | 鲁先文.Cd、Pb与酸雨复合污染对油菜种子萌发和幼苗保护酶活性的影响[J].吉林农业科学,2011,36(3). |
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| 作者姓名： | 鲁先文 |
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| 作者单位： | 淮南师范学院生命科学系,安徽淮南,232038 |
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| 基金项目： | 安徽省教育厅科研项目(KJ2007B341ZC、KJ2009B267Z) |
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| 摘 要： | 采用沙基培养方法,研究不同浓度的Pb、Cd和pH5.2的酸雨混合液对其种子萌发、幼苗叶片叶绿素含量、幼苗保护酶活性等的影响。结果表明:Pb、Cd溶液浓度在100 mg/L以内,随胁迫程度的增加,幼苗总重、全长、根重出现了下降。POD(过氧化物酶)、SOD(过氧化物歧化酶)活性先增加后下降,但都较对照组高,CAT(过氧化氢酶)活性一直增强。种子发芽率随重金属浓度的增加表现为低促进高抑制的现象,叶绿素a、b含量在5 mg/L浓度内呈上升趋势,大于5 mg/L时出现了减少,总体上呈波动变化。
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| 关 键 词： | 油菜幼苗 重金属 模拟酸雨 叶绿素 抗氧化酶系统 |
Effect of Cd and Pb and Simulated Acid Rain on Emergence and Activity of Cell Defense Enzymes of Rape seedlings |
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| LU Xian-wen.Effect of Cd and Pb and Simulated Acid Rain on Emergence and Activity of Cell Defense Enzymes of Rape seedlings[J].Jilin Agricultural Sciences,2011,36(3). |
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| Authors: | LU Xian-wen |
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| Institution: | LU Xian-wen(Department of life science Huainan Normal University,HuaiNan 232038,China) |
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| Abstract: | Using rape as materials,effect of simulated acid rain of pH5.2 and six different levels of Pb,Cd on the activity of cell defense enzymes system,leaf chlorophyll content,germination rate was studied.The results showed that when Pb and Cd was less than 100mg/L,total length of seedlings,weight of seedlngs and weight of roots were decreased as stress increased.The activities of SOD,POD were increased at first and decreased later.However,their activities were higher than that of control.Activity of CAT was incre... |
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| Keywords: | Rape seedlings Heavy metal Simulated acid rain Chlorophyll Defense enzymes system |
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