三种外源激素类物质对白背飞虱(Sogatella furcifera)翅型分化的影响  

Effects of three kinds of exogenous hormones on wing dimorphism of Sogatella furcifera(Horvath)

作　　者：张琼秀[1] 孙梓暄[1] 李广宏[1] 王方海[1] 

机构地区：[1]中山大学有害生物控制与资源利用国家重点实验室/昆虫学研究所,广州510275

出　　处：《生态学报》2008年第12期5994-5998,共5页Acta Ecologica Sinica

基　　金：教育部留学回国人员启动基金资助项目;广东省自然科学基金资助项目~~

摘　　要：以白背飞虱为研究对象,首次使用保幼激素类似物ZR-515、早熟素和具有蜕皮激素活性的新型化合物RH-2485表面处理飞虱3龄或4龄若虫,来研究探讨激素对飞虱翅型分化的影响。结果表明:ZR-515可诱导短翅型分化,当用10ng/μl的ZR-515处理3龄若虫时,短翅率达到45.6%;而用1μg/μl及100ng/μl的ZR-515对4龄期若虫进行处理时,短翅率则分别达到50%和50.26%。早熟素具有明显的长翅化效应,随着处理浓度的增高,被处理的白背飞虱若虫形成的长翅型成虫数也逐渐增加,且早熟素在3龄期处理对白背飞虱长翅诱导作用强于在4龄期进行的处理,如在3龄期处理时,10μg/μl和100ng/μl的处理组长翅型成虫比率分别高达100%和86.67%。而RH-2485对翅型分化无明显影响。The effects of hormones on wing dimorphism of Sogatellafurcifera were explored by treating the surfaces of 3^rd or 4^th instar larvae with ZR-515, precocene and RH-2485. The results showed ZR-515 could induce brachypter, the brachypterous adult rates were 45.6% , 50% and 50.26% respectively when the 3^rd instar larvae were treated by 10ng/μl ZR-515 and the 4^th instar larvae were treated by 1 μg/μl or 100ng/μl ZR-515. Precocene could induce macropter, the more macropterous adult were found the higher titer of preconece was applied to the larvae, and the macropter inducement was more effective at the 3^rd instar than at the 4^th instar, the macropterous adults rates were 100% or 86.67% respectively when S. furcifera were treated by 10μg/μl or 100ng/μl preconece at the 3^rd instar. RH-2485 had no effects on wing dimorphism of this insect.

关 键 词：白背飞虱 外源激素类物质 ZR-515 RH-2485 早熟素 翅型分化 

分 类 号：S435.112.3[农业科学—农业昆虫与害虫防治]