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Effect of sublethal concentration of insecticides and SINPV on the activities of SOD, CAT and POD in Spodoptera litura
Author(s): 
Pages: 775-779
Year: Issue:  5
Journal: ACTA ENTOMOLOGICA SINICA

Keyword:  斜纹夜蛾超氧化物歧化酶过氧化氢酶过氧化物酶乐斯本除尽核型多角体病毒;
Abstract: 在(28±1)℃下,以斜纹夜蛾Spodoptera litura为靶标昆虫,测定亚致死剂量的乐斯本、除尽与斜纹夜蛾核型多角体病毒(SlNPV)混用后对幼虫SOD(超氧化物歧化酶)、CAT(过氧化氢酶)和POD(过氧化物酶)活性的影响.结果表明,乐斯本和SlNPV混合悬液处理后斜纹夜蛾体内SOD活性显著高于清水、病毒和乐斯本单独处理组,12 h、24 h和36 h时分别为清水对照的1.18、1.35和1.25倍;除尽和SlNPV混合悬液处理后12 h,其酶活性低于清水、SlNPV和除尽单独处理组.乐斯本和病毒混合悬液处理后,斜纹夜蛾体内CAT活性高于清水、病毒和乐斯本单独处理组,12 h、24 h和36 h时分别为清水对照组的2.79、1.09和1.53倍;除尽和病毒的混合悬液处理后,其酶活性除12 h时明显高于清水对照外,其他时间均低于清水对照.在正常和中毒的斜纹夜蛾体内均未测出POD活性.可见,农药与病毒混合处理主要影响了CAT活性.
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