| 柳蓝叶甲取食铅胁迫垂柳后体内保护酶活性和自由基含量变化 |
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| 引用本文： | 曹丹丹,杨晋宇,徐学华,苏筱雨,项亚飞,黄大庄.柳蓝叶甲取食铅胁迫垂柳后体内保护酶活性和自由基含量变化[J].东北林业大学学报,2010,38(5). |
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| 作者姓名： | 曹丹丹 杨晋宇 徐学华 苏筱雨 项亚飞 黄大庄 |
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| 作者单位： | 河北农业大学,保定,071000;雾灵山自然保护区管理局;河北农业大学 |
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| 基金项目： | 河北省林业科学技术研究项目 |
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| 摘 要： | 用不同质量分数铅胁迫的垂柳(Salix babylonica)叶片饲喂柳蓝叶甲(Plagiodera versicolora),并采用分光光度法测定其2、3龄和成虫体内SOD、CAT和POD活性以及自由基含量.结果表明:随着铅胁迫质量分数的增大,各龄期柳蓝叶甲体内3种抗氧化酶活性和自由基含量均表现出先上升后下降的趋势,即低质量分数的铅促使其活性升高,高质量分数的铅使其活性下降,且与对照差异均达到极显著水平(p<0.01).2和3龄幼虫体内POD活性变化平缓,且明显低于成虫,表明柳蓝叶甲成虫抵抗铅胁迫的能力比幼虫强.
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| 关 键 词： | 垂柳 柳蓝叶甲 铅胁迫 保护酶 自由基含量 |
Changes in Protective Enzymes Activity and Free Radical Content of Plagiodera versicolora After Feeding Salix babylonica under Pb Stress |
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| Cao D,an,Yang Jinyu,Xu Xuehua,Su Xiaoyu,Xiang Yafei,Huang Dazhuang.Changes in Protective Enzymes Activity and Free Radical Content of Plagiodera versicolora After Feeding Salix babylonica under Pb Stress[J].Journal of Northeast Forestry University,2010,38(5). |
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| Authors: | Cao D an Yang Jinyu Xu Xuehua Su Xiaoyu Xiang Yafei Huang Dazhuang |
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| Institution: | Cao D,an,Yang Jinyu,Xu Xuehua,Su Xiaoyu(School of Forestry,Agricultural University of Hebei,Baoding 071000,P. R. China),Xiang Yafei(the Administration Bureau of Wuling Mountain Nature Reserve),Huang Dazhuang(Agricultural University of Hebei) |
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| Abstract: | Activities of three protective enzymes (SOD,CAT and POD) and content of free radical were measured in larva and adult of Plagiodera versicolora fed with the leaves of Salix babylonica under different Pb stresses by spectrophotometric determination. Results show that three antioxidant enzyme activities and free radical content increase first and then decrease with increasing concentrations of Pb. That is to say,low concentrations of Pb increased the activities of SOD,CAT and POD,while high concentrations of ... |
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| Keywords: | Salix babylonica Plagiodera versicolora Pb stress Protective enzymes Free radical content |
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