%0 Journal Article
%T Ecdysteroids in the larvae of Opogona sacchari (Bojer), a invasive alien pest<br>Ecdysteroids in the larvae of Opogona sacchari （Bojer）, a invasive alien pest
%A WANG FangHai
%A ZHANG GuRen
%A WEN RuiZhen
%A HE GuoFeng
%A <br>WANG
%A FangHai
%A ZHANG
%A GuRen
%A WEN
%A RuiZhen
%A HE
%A GuoFeng
%J 科学通报(英文版)
%D 2007
%I 
%X 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.
%K Opogona sacchari
%K ecdysteroids
%K larvae<br>外来生物
%K 幼虫
%K 害虫
%K 植物
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=D49AE89530F901E736E6E202088168A5&yid=A732AF04DDA03BB3&vid=286FB2D22CF8D013&iid=0B39A22176CE99FB&sid=EF27C460877D3C9F&eid=3D9746C06EC12B45&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=18