Ecdysteroids in the larvae of Opogona sacchari(Bojer),a invasive alien pest  

作　　者：WANG FangHai ZHANG GuRen WEN RuiZhen HE GuoFeng 

机构地区：[1]State Key Laboratory for Biological Control & Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, China

出　　处：《Chinese Science Bulletin》2007年第2期205-208,共4页

基　　金：the Natural Science Foundation of China (Grant No. 39870476);the Natural Science Foundation of Guangdong Province (Grant Nos. E039254 & 031626);the Scientific and Technological Plan of Zhuhai city (Grant No. PC20051046).

摘　　要：In order to understand the composition and quantitative variation of ecdysteriods in the larvae of Opogona sacchari (Bojer), a invasive alien pest, we analyzed the larval ecdysteroid composition and titers in this pest. The main component of ecdysteriods in the larvae of O. sacchari is 20-hydroxyecdysone, and also there is a little 26-hydroxyecdysone. The titer of ecdysteriods in the larvae from the 1st instar to the 7th instar was gotten higher gradually compared on ng ecdyster-oid/larva, but no regularity could be found about the titer if compared on ng ecdysteroid/g avoirdupois. There was only one peak of ecdysteroids (0.5475 ng/larva) showed at day 2 during the developmental time of the 6th instar larvae. However, there were two peaks appearing during the developmental time of the 7th instar larvae , one peak (0.29415 ng/larva) at day 3, another (0.214 ng/larva) at day 5.In order to understand the composition and quantitative variation of ecdysteriods in the larvae of Opogona sacchari （Bojer）, a invasive alien pest, we analyzed the larval ecdysteroid composition and Uters in this pest. The main component of ecdysteriods in the larvae of O. sacchari is 20-hydroxyecdysone, and also there is a little 26-hydroxyecdysone. The titer of ecdysteriods in the larvae from the 1st instar to the 7th instar was gotten higher gradually compared on ng ecdysteroid/larva, but no regularity could be found about the titer if compared on ng ecdysteroid/g avoirdupois. There was only one peak of ecdysteroids （0.5475 ng/larva） showed at day 2 during the developmental time of the 6th instar larvae. However, there were two peaks appearing during the developmental time of the 7th instar larvae, one peak （0.29415 ng/larva） at day 3, another （0.214 ng/larva） at day 5.

关 键 词：外来生物 幼虫 害虫 植物 

分 类 号：S433[农业科学—农业昆虫与害虫防治]