美国白蛾危害前后树木蛋白质含量与抗虫性关系  

Relationship between protein content and resistance of tree species factitiously infected by Hyphantria cunea( Lepidoptera: Arctiidae)

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：《生态学杂志》2015年第10期2821-2826,共6页Chinese Journal of Ecology

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(031040302);河北省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)资助

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,于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的幼虫,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2、4、6、8、10 d后,对美国白蛾抗性低的桑树、法国梧桐、臭椿、白蜡的可溶性蛋白质含量呈现先上升后下降的趋势,而对美国白蛾抗性高的毛白杨体内蛋白质含量首先表现出降低趋势,但二者均表现为被持续取食10 d后体内蛋白质含量低于取食前和对照;表明不同树种(耐虫和感虫)受美国白蛾侵害后蛋白质含量变化规律不同,抗虫性高低与蛋白质含量的高低没有对应关系。In September 2014, an experiment of factitious infection by Hyphantria cunea （Dru- ry） （Lepidoptera： Arctiidae ） was done in 3-year-old woodland of target garden greening tree species, namely Fraxinus chinensls Rosb., Platanus orientalis L., Morus alba L., Ailanthus alti- ssima （Mill.） Swingle, Populus tomentosa Carr., Toona sinensis （A. Juss. ） Roem in Langfang, Hebei. The larvae of H. cunea were reared on leaves of the target species under laboratory condi- tions. Leaf consumption and changes of soluble protein content before and after factitious infection by H. cunea were measured. The results indicated that the order of leaf consumption by H. cunea was arranged as M. Alba 〉 Pl. orientalis 〉 A. altissima 〉 F. chinensis 〉 P. tomentosa 〉 T. sinen- sis. The soluble protein content ascended firstly and then descended in target species M. alba, Pl. orientalis, A. altissima and F. Chinensis with low resistance to H. cunea, but it descended firstly in P. tomentosa with high resistance to H. cunea after 2, 4, 6, 8, 10 days of feeding, respective- ly; but these protein contents on day 10 were lower than that before feeding by H. cunea and of the control. The results demonstrated that the effect of H. cunea on protein contents of target spe- cies varied with the extent of tree species tolerance to the moths. The resistance of trees to H. cu- nea was insignificantly correlated with protein content.

关 键 词：食叶昆虫 人工接种 目标树种 动态关系 

分 类 号：S763.42[农业科学—森林保护学]