胚胎发育期经历的寄主刺激物对棉铃虫初孵幼虫嗅觉偏好性的影响  

Effect of Host Stimuli Experienced during Embryonic Development on Olfactory Preference of Helicoverpa armigera Subsequent Larvae

作　　者：吴广庆[1] 李为争[2] 杨淑芳[2] WU Guangqing;LI Weizheng;YANG Shufang(College of Dongchang,Liaocheng University,Liaocheng 252000,China;College of Plant Protection,Henan Agricultural University,Zhengzhou 450002,China)

机构地区：[1]聊城大学东昌学院,山东聊城252000 [2]河南农业大学植物保护学院,河南郑州450002

出　　处：《河南农业科学》2018年第9期82-87,共6页Journal of Henan Agricultural Sciences

基　　金：中国科学院昆虫发育与进化生物学重点实验室开放课题(2009DP17321414)

摘　　要：为了探讨棉铃虫胚胎发育期经历的寄主植物化学刺激对孵化后个体嗅觉趋向行为的影响,进而为棉铃虫的生态防控提供科学依据,使棉铃虫雌蛾在涂布不同寄主植物(棉花、烟草、辣椒、番茄)刺激物的纱布上产卵,收集孵化后的幼虫,测试其寄主选择行为。结果表明,卵发育期间经历4种寄主植物化学刺激的个体,寄主选择行为和无经历对照组的个体有显著的差异。卵期在烟草上的发育经历会造成初孵幼虫对烟草的嗅觉偏好性增强,辣椒和番茄也有类似的诱导性经历效应,祖先寄主棉花的诱导作用最差。另外,室内长期用人工饲料饲养的棉铃虫,会逐渐发育出对番茄挥发物的回避行为,嗅觉敏感化可能是主要机制。总之,卵期经历的寄主植物化学刺激会显著影响孵化后幼虫的嗅觉偏好性。To elucidate the effect of host plant chemical stimuli experienced during embryonic development on the olfactory preference of Helicoverpa armigera hatchlings,and provide a scientific basis for ecological control of the important pest,the olfactory preference of Helicoverpa armigera hatchlings undergoing different host stimuli(cotton,tobacco,hot pepper,and tomato)during embryonic development was tested.All the host stimuli experiences during egg hatching could significantly alter the olfactory preference of subsequent larvae among the four options,compared with the control group undergoing none of host stimuli.Tobacco-experiencing group always exhibited a stronger olfactory preference to tobacco than any other paired host plants.Chemical stimuli from hot pepper or tomato leaves had similar positive induction preference but weaker than that from tobacco,while the ancestor host,cotton,did not show remarkable induction preference.Additionally,we found that H.armigera could develop an aversive response to tomato volatiles during artificial rearing,perhaps a type of olfactory sensitization.All together,host chemical stimuli experienced during embryonic development could alter the olfactory preference of H.armigera hatchlings.

关 键 词：棉铃虫 经历 卵期 寄主植物 嗅觉偏好性 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]