观赏植物抗蚜虫新途径分析  

Analysis of New Approaches to Anti-aphid in Ornamental Plants

作　　者：杨振立[1] 李旸 吴志明[1] 蒋楚燕 董文琦[1] YANG Zhen-li;LI Yang;WU Zhi-ming;JIANG Chu-yan;DONG Wen-qi(Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050031,China;China AgriculturalUniversity,Beijing 100193,China)

机构地区：[1]河北省农林科学院,河北石家庄050031 [2]中国农业大学,北京100193

出　　处：《河北农业科学》2018年第3期47-49,64,共4页Journal of Hebei Agricultural Sciences

基　　金：河北省自然基金和重点基础专项(18962901D)

摘　　要：蚜虫严重为害观赏植物。掌叶半夏是天然无异味、高抗蚜虫的观赏植物,已有研究表明其总蛋白含有的蛋白酶抑制剂具有重要的抗蚜作用。从抗蚜基因克隆、高抗蚜资源挖掘、蛋白酶抑制剂特点等角度,总结了植物抗蚜研究的现状;分析了抗蚜研究中遇到的主要问题,包括可用的单显性基因少、抗蚜基因所抗蚜虫种类过于单一、广谱植物凝集素依赖背景植物才能提供特定糖链发挥作用等。在总结了植物抗蚜虫发展趋势的基础上,提出了利用掌叶半夏蛋白酶抑制剂提升观赏植物抗蚜的新途径,并对前期植物选择及主要研究方向进行了分析。Aphids seriously damage the ornamental plants. Pinella pedatisecta is a natural,tasteless and strong anti-aphid ornamental plants because of its protease inhibitor. This paper summarizes the present situation of plant anti-aphid including anti-aphid gene cloning,mining high anti-aphid resources,and the characteristics of protease inhibitor. It also analyses the existing problems,such as the available single dominant anti-aphid genes are rare,the aphid resistant genes are too single and the broad-spectrum plant agglutinin only works relying on the specific carbohydrate of background plants. According to the summary of the trends in plant resistance to aphid,a new way to improve the resistance to aphid of ornamental plants is proposed by using the protease inhibitor in P. pedatisecta. It also analyzes the early plant selection and the main research direction about anti-aphid.

关 键 词：观赏植物 抗蚜虫 掌叶半夏PPTI 基因 

分 类 号：S433.3[农业科学—农业昆虫与害虫防治] S68[农业科学—植物保护]