美国白蛾危害前后树木可溶性糖含量与抗虫性的关系  

Relationship between soluble sugar content and insect resistance of target tree species infected by Hyphantria cunea(Drury)

作　　者：王秋芬[1,2] 胡启蒙[1,2] 吝亚杰 宇文杏 刘婷婷[1] 白会聪 林胜男[1] 

机构地区：[1]廊坊师范学院生命科学学院,河北廊坊065000 [2]河北省高校食药用菌应用技术研发中心,河北廊坊065000

出　　处：《广东农业科学》2015年第22期73-78,共6页Guangdong Agricultural Sciences

基　　金：河北省科技支撑计划项目(12226502);河北省生物学实验教学示范中心项目(031040302);河北省生物科学专业综合改革试点项目;廊坊市科技计划指导项目(2012012001);廊坊师范学院生命科学学院重点项目(SKCYZ201304);廊坊师范学院大学生创新创业训练计划项目(201310100006)

摘　　要：以廊坊市主要园林绿化树种白蜡(Fraxinus chinensis Rosb.)、法国梧桐(Platanus orientalis L.)、桑树(Morus alba L.)、臭椿〔Ailanthus altissima(Mill.)Swingle〕、毛白杨(Populus tomentosa Carr.)和香椿〔Toona sinensis(A. Juss.)Roem.〕为目标树种,2014年9月在其3年生林地中进行美国白蛾〔Hyphantria cunea(Drury)〕人工接种试验,并用目标树种的离体叶片饲喂美国白蛾幼虫,统计其食叶量,同时测定目标树种非自然侵染前后可溶性蛋白质含量的变化。结果表明:美国白蛾对目标树种取食量的高低顺序为桑树>法国梧桐>臭椿>白蜡>毛白杨>香椿;美国白蛾取食后,树种(抗性和感性)叶片内可溶性糖含量的变化没有规律,抗虫性高低与可溶性糖含量的高低没有对应关系。In September 2014, the experiment of factitious infection by Hyphantria cunea （ Drury ） （ Lepidoptera： Arctiidae ） was carried out in three-year woodland of target tree species, including Fraxinus chinensis Rosb., Platanus orientalis L., Morus alba L., Ailanthus altissima （ Mill. ） Swingle, Populus tomentosa Carr., Toona sinensis （ A. Juss. ） Roem in Langfang City. The larvae of H. cunea were reared on leaves of the target species under laboratory conditions, and their leave consumption and changes of soluble sugar content of target tree species before and after factitious infection by H. cunea were measured and compared. The results indicated that the order of leave consumption by H. cunea arranged as M. alba 〉 P. orientalis 〉 A. altissima. 〉 F. chinensis 〉 P. tomentosa 〉 T. sinensis. There was no regularity of change of soluble sugar content in target tree species （ tolerant and susceptible to the moths ） . The results demonstrated that the resistance to H. cunea was insignificantly correlated with soluble sugar content.

关 键 词：食叶昆虫 人工接种 目标树种 动态关系 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]