寄主植物接种番茄斑萎病毒对西花蓟马种群的影响  

Effects of inoculation of host plants with tomato spotted wilt virus on populations of the western flower thrips,Frankliniella occidentalis(Pergande) (Thysanoptera:Thripidae)

作　　者：朱秀娟[1,2] 张治军[2] 吕要斌[1,2] 

机构地区：[1]杭州师范大学生命与环境科学学院,杭州310018 [2]浙江省农业科学院植物保护与微生物研究所,浙江省植物有害生物防控重点实验室-省部共建国家重点实验室培育基地,杭州310021

出　　处：《昆虫学报》2011年第4期425-431,共7页Acta Entomologica Sinica

基　　金：国家公益性行业科研专项(200803025,201103026)

摘　　要：【目的】西花蓟马Frankliniella occidentalis(Pergande)是一种入侵我国的重要害虫,而番茄斑萎病毒是以西花蓟马传播为主的一种极具危害性的世界性病毒,通过研究西花蓟马与番茄斑萎病毒之间的互作将有助于进一步深入理解西花蓟马以及番茄斑萎病毒的发生与猖獗机制,同时也将为制定合理、可持续的控制西花蓟马及其传播的植物病毒防控策略提供理论依据。【方法】利用应用特定年龄-龄期及两性生命表方法,研究了西花蓟马在辣椒3种处理(健康CK、机械损伤MD、机械接种番茄斑萎病毒MI)叶片上的生长发育、存活及种群增长。【结果】健康、机械损伤和机械接毒叶片上的发育历期依次为12.45,11.97和11.18d。雌雄成虫寿命和雌虫产卵量在不同处理植株叶片上差异显著(P<0.05),在机械接毒叶片上寿命最长(雌13.51d,雄12.69d);繁殖能力最强,产子代数高达33.01头1龄若虫/雌。健康、机械损伤和机械接毒叶片上西花蓟马内禀增长率分别为-0.009,0.153和0.190d-1,净生殖率依次为0.84,14.54和21.79。【结论】番茄斑萎病毒诱导寄主植物辣椒反应使西花蓟马发育历期缩短,成虫寿命延长,繁殖能力提高,种群增长加速。[Aim] The western flower thrips （WFT）,Frankliniella occidentalis （Pergande）,is an invasive pest in China,while tomato spotted wilt virus （TSWV）,which is mainly transmitted by WFT,is a very serious virus around the world. Through the study of the interactions between WFT and TSWV,the mechanism of the outbreak of both WFT and TSWV can be further understood. Furthermore,it will provide a theoretical basis for developing reasonable and sustainable control strategies of WFT and TSWV. [Methods] Age-stage and two-sex life tables were used to study the effects of the mature excised foliages of three treated peppers （healthy,CK; mechanically damaged,MD; mechanically inoculated by TSWV,MI） on biological characteristics of WFT. [Results] The results showed that the developmental periods of preadult thrips were 12.45,11.97 and 11.18 d on CK,MD and MI foliages,respectively. There were significant differences in adult longevity and female fecundity between different treatments （P〈0.05）. On MI-leaves,the adult longevity was the longest （female：13.51 d; male：12.69 d）,and the total number of 1st instar nymphae produced was the highest,up to 33.01 1st instar nymphae per female. The intrinsic rate of increase （rm） on CK,MD and MI were-0.009,0.153,0.190 d-1,and the net reproduction rate （R0） were 0.84,14.54,and 21.79,respectively. [Conclusion] The results suggest that infection of host plants with TSWV may benefit WFT through shortening developmental time,prolonging adult longevity,increasing fecundity,and accelerating the population growth of WFT.

关 键 词：西花蓟马 寄主植物 番茄斑萎病毒 接毒 种群增长 发育历期 繁殖力 成虫寿命 

分 类 号：Q965[生物学—昆虫学]