杀虫剂胁迫对小白菜B. campestris体内营养物质和黄曲条跳甲P. striolata取食的影响  

Effect of Pesticide Stress on Nutritional Components of Host Plant,Brassica campestris, and Feeding Preference of Striped Flea Beetle(SFB), Phyllotreta striolata

作　　者：傅建炜[1,2] 魏辉[1] 李建宇[1] 占志雄[1] 尤民生[2] 

机构地区：[1]福建省农业科学院植物保护研究所,福建福州350013 [2]福建农林大学应用生态研究所,福建福州350002

出　　处：《农业环境科学学报》2009年第6期1253-1257,共5页Journal of Agro-Environment Science

基　　金：国家自然科学基金(30070503);福建省自然科学基金项目(B0610025)

摘　　要：采用生物测定与生理生化方法,研究不同杀虫剂胁迫下小白菜B.campestris体内的蛋白质和可溶性糖含量变化,以及对黄曲条跳甲(P.striolata)取食的影响。结果显示,杀虫剂处理对小白菜体内蛋白质含量的影响不显著,但对小白菜体内可溶性糖含量的影响显著。统计分析表明,杀虫剂处理后,黄曲条跳甲对小白菜的取食与植株体内蛋白质含量呈显著的负相关(P<0.05),与小白菜的可溶性糖含量呈极显著的正相关(P<0.01)。The striped flea beetle, Phyllotreta striolata（ Fabricius ）, is a major erueifer specific pest, spreads widely across the world. The beetles infest many erucifers like mustard, turnip, radish, and related weeds, and with the planting area of erueifers larger than ever, the problem of its continuous damages to the vegetables by P. striolata is becoming more serious in the south of China, from which a heavy economic loss results every year. The application of insecticide is a important factor effects the occurrence of P. striolata. In this study, effect of different pesticides stress on the content of soluble sugar and protein of host plant, B. campestris L. and feeding preference of striped flea beetle, P. striolata, were carried out with bioassay and biochemical analysis. The result showed that pesticide stress had no effect on the content of protein, however, significant effect was observed in the content of soluble sugar of host plant, B. campestris L., statistical analysis indicated that the feeding preference of P. striolata adult had a significant negative correlation with the content of protein（P〈0.05 ） and positive correlation with the content of soluble sugar （P〈0.01） in host plant （B. campestris L） stressed by different insecticides.

关 键 词：杀虫剂胁迫 小白菜 营养物质 黄曲条跳甲 取食选择 

分 类 号：Q945.78[生物学—植物学]