b型烟粉虱为害烟草对烟蚜和b型烟粉虱取食行为影响word格式论文.docxVIP

EPG results revealed that, compared with the control, there was no significant influence of systemic white-vein leaves damaged by B. tabaci on feeding behavior of itself, while it had slight positive effect on B. tabaci of local leaves. The results demonstrated that, on the systemic white-vein leaves damaged by B. tabaci, time duration of first probe and time duration of first E1 of B. tabaci had significantly shorten compared with controls. However, there were no significant differences in total duration of probing, total duration of E1 between systemic white-vein leaves damaged by B. tabaci and controls. All results revealed that there ware influence of inhibition on start of probing and phloem of B. tabaci, with the time of prolong, this influence disappear.The changes of the volatile from leaves damaged by B. tabaci were studied through SPME and GC-MS technology. The results showed that 34 kinds of new volatile components were found and 29 kinds of volatile components disappeared in local leaves compared with the control, while 25 kinds of new volatile components were found and 28 kinds of volatile components disappeared in systemic white-vein leaves compared with the control. Simultaneously, the ratio of some certain volatile changed in systemic white-vein leaves and local leaves. The result above suggested that the changes of volatile components and relative contents in tobacco leaves damaged by B. tabaci affected the host choice of M.persicae.Key words: Bemisia tabaci type B; tobacco; induced defenses; M.persicae; EPG; feeding behavior; volatile.关于学位论文原创性和使用授权的声明本人所呈交的学位论文，是在导师指导下，独立进行科学 研究所取得的成果。对在论文研究期间给予指导、帮助和做出 重要贡献的个人或集体，均在文中明确说明。本声明的法律责 任由本人承担。本人完全了解山东农业大学有关保留和使用学位论文的规 定，同意学校保留和按要求向国家有关部门或机构送交论文纸 质本和电子版，允许论文被查阅和借阅。本人授权山东农业大 学可以将本学位论文的全部或部分内容编入有关数据库进行检 索，可以采用影印、缩印或其他复制手段保存论文和汇编本学 位论文，同时授权中国科学技术信息研究所将本学位论文收录 到《中国学位论文全文数据库》，并向社会公众提供信息服 务。必威体育官网网址论文在解密后应遵守此规定。论文作者签名： 导师 签 名： 日期： 1 前言1.1 昆虫取食诱导的植物防御反应植物在进化过程中对昆虫和病原菌危害形成了多种防御机制。一般分为组成型防御 机制(constitutive defenses)和