无翅桃蚜对龟纹瓢虫的视觉和嗅觉识别反应  

Recognition responses of apterous Myzus persicae to the visual and olfactory cues from Propylaea japonica adults

作　　者：李为争[1] 付国需[1] 柴晓乐[1] 王英慧[1] 张元臣[1] 原国辉[1] 

机构地区：[1]河南农业大学植物保护学院,郑州450002

出　　处：《昆虫学报》2010年第3期354-359,共6页Acta Entomologica Sinica

基　　金：河南省重点科技攻关资助项目(082102150003)

摘　　要：为探明桃蚜Myzus persicae是否可以识别来自其捕食性天敌的嗅觉和视觉信息,本研究采用桃蚜和龟纹瓢虫Propylaea japonica这一猎物-捕食者系统,在室内测定了无翅桃蚜对龟纹瓢虫成虫体色和挥发物的识别反应。选择反应试验结果表明,无翅桃蚜既能通过视觉信息识别瓢虫的存在,也能通过嗅觉信息识别瓢虫的存在,说明桃蚜对龟纹瓢虫体色和气味信息的识别存在一定的冗余现象。剂量反应试验结果表明,龟纹瓢虫粗提物的剂量与其对桃蚜的驱避率呈现良好的线性关系,识别反应剂量的临界值在0.3～0.6个瓢虫当量之间,1.2～1.5个瓢虫当量的粗提物的驱避作用与20头活体龟纹瓢虫的驱避作用相当。结论认为,桃蚜可以识别龟纹瓢虫的存在,并对其作出一定的躲避反应,从而降低被捕食的风险。In order to investigate whether Myzus persicae can recognize the visual and olfactory cues from its predators,bioassays were made on the recognition responses of apterous M.persicae to elytra color and volatiles of Propylaea japonica adults in the laboratory by using the prey-predator system of M.persicae-P.japonica.The results of choice response bioassay showed that apterous M.persicae could detect the presence of P.japonica both through visual sense and olfactory sense,suggesting that there is a certain redundancy in the recognition of visual and olfactory cues.The results of dose-response bioassay showed that there was a positive linear relationship between the dose of the ladybird extract and the repellent percentage of the aphids.The critical dose for recognition was within the range of 0.3-0.6 ladybird equivalent,and the repellence of 1.2-1.5 ladybird equivalent was equal to that of 20 live P.japonica adults.We thus conclude that the aphids have the ability to detect the presence of P.japonica and adopt initiative avoidance responses to reduce the predation risk.

关 键 词：桃蚜 龟纹瓢虫 猎物-捕食者系统 视觉信息 嗅觉信息 识别反应 驱避作用 

分 类 号：Q967[生物学—昆虫学]