角倍蚜干母的刺探取食行为分析
The analysis of feeding behaviour electrical penetration graph (EPG) in Schlechtendalia chinensis fundatrix
刘平**，杨子祥***，吕翔，李杨
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作者单位：中国林业科学研究院资源昆虫研究所国家林业局资源昆虫培育与利用重点实验室昆明650224
中文关键词：角倍蚜， 取食行为， 刺探电位(EPG)， 组织学
英文关键词：Schlechtendalia chinensis, feeding behaviour, EPG, histology
中文摘要： 本文采用EPG技术监测角倍蚜Schlechtendalia chinensis (Bell)干母在第一寄主植物盐肤木(Rhus chinensis Mill )上的取食行为。获得干母在盐肤木小叶及叶翅上的取食波形7个，分别为np、C(A+B+C)、pd、E1、E2、F、G波。对干母在盐肤木小叶或叶翅上的取食部位组织进行切片实验。切片结果显示，干母取食时口针末端到达部位多在韧皮部。根据EPG记录和切片结果确定角倍蚜主要在盐肤木的韧皮部取食，极少在木质部取食。
英文摘要： The feeding behaviour of Schlechtendalia chinensis (Bell) fundatrix on its primary hostplant Rhus chinensis Mill was monitored using an electrical penetration graph (EPG). 7 EPG waves were obtained on leaflets or leafwings; np, C (A+B+C), pd, E1, E2, F and G waves. The tissue of leaflets or leafwings on which S. chinensis had fed were sectioned and examined with an optical microscope. The results revealed that the aphid stylets had mostly just touched the phloem. Based on these results we conclude that S. chinensis fundatrix obtains food mainly from the phloem.