Ecological Fitness of Non-vector Planthopper Sogatella furcifera on Rice Plants Infected with Rice Black Streaked Dwarf Virus  

作　　者：HE Xiao-chan XU Hong-xing ZHENG Xu-song YANG Ya-jun GAO Guang-chun PAN Jian-hong LU Zhong-xian 

机构地区：[1]Institute of Plant Protection and Microbiology,Zhejiang Academy of Agricultural Sciences [2]Department of Plant Protection,Nanjing Agricultural University

出　　处：《Rice science》2012年第4期335-338,共4页水稻科学（英文版）

基　　金：supported by the National Basic Research Program of China(Grant No.2010CB126200);the AgroIndustry R&D Special Fund of China(Grant Nos.200903051 and 201003031)

摘　　要：We evaluated the effects of rice black streak dwarf virus （RBSDV）-infested rice plants on the ecological parameters and its relevant defensive and detoxification enzymes of white-backed planthopper （WBPH） in laboratory for exploring the relationship between RBSDV and the non-vector planthopper. The results showed that nymph survival rate, female adult weight and fecundity, and egg hatchability of WBPH fed on RBSDV-infested rice plants did not markedly differ from those on healthy plants, whereas the female adult longevity and egg duration significantly shortened on diseased plants. Furthermore, significantly higher activities of defensive enzymes （dismutase, catalase and peroxidase） and detoxification enzymes （acetylcholinesterase, carboxylesterase and glutathione S-transferase） were found in WBPH adults fed on infected plants. Results implied that infestation by RBSDV increased the ecological fitness of non-vector planthopper population.We evaluated the effects of rice black streak dwarf virus （RBSDV）-infested rice plants on the ecological parameters and its relevant defensive and detoxification enzymes of white-backed planthopper （WBPH） in laboratory for exploring the relationship between RBSDV and the non-vector planthopper. The results showed that nymph survival rate, female adult weight and fecundity, and egg hatchability of WBPH fed on RBSDV-infested rice plants did not markedly differ from those on healthy plants, whereas the female adult longevity and egg duration significantly shortened on diseased plants. Furthermore, significantly higher activities of defensive enzymes （dismutase, catalase and peroxidase） and detoxification enzymes （acetylcholinesterase, carboxylesterase and glutathione S-transferase） were found in WBPH adults fed on infected plants. Results implied that infestation by RBSDV increased the ecological fitness of non-vector planthopper population.

关 键 词：ecological fitness rice black streaked dwarf virus non-vector white-backed planthopper 

分 类 号：S435.11[农业科学—农业昆虫与害虫防治]