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Ecdysteroids in the adults and eggs of opogona sacchari (Bojer),an invasive alien pest

Science China(Life Sciences) 2008年第2期51卷 140-144页

作者： WANG FangHai, ZHANG GuRen, WEN RuiZhen & HE GuoFeng State Key Laboratory for Biological Control and Institute of Entomology, Sun Yat-sen University, Guangzhou 510275, China State Key Laboratory for Biological Control and Institute of Entomology Sun Yat-sen University Guangzhou China

In order to understand the composition and quantitative variation of ecdysteriods in the adults and eggs of opogona sacchari (Bojer), an invasive alien pest, we analyzed the ecdysteroid composition and titers in the adult and egg of this pest. On day 4 after eclosion, the titer of ecdysteriods in the male adult was 0.080 ng/adult, much lower than 5.978 ng/adult in the female adult. During the development of ovaries, the titer of ecdysteriods was low on the first two days, and high in the late period, with the peak (10.48 ng/ovary) appearing on day 3. During the development of eggs, the titer of ecdysteriods was about 0.010 ng/egg from day 1 to day 3, and then decreased to 0.006 ng/egg on day 4. In both adults and eggs, three main components of ecdysteriods were found by identification of HPLC/RIA. They were 20-hydroxyecdysone, 26-hydroxyecdysone, and an unidentified component.

关键词： opogona sacchari ecdysteroids adults eggs

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Ecdysteroids in the pupae of opogona sacchari (Bojer), a new invasive alien pest

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Chinese Science Bulletin 2006年第11期51卷 1324-1327页

作者： WANG Fanghai ZHANG Guren WEN Ruizhen HE Guofeng State Key Laboratory for Biological Control & Institute of Entomology Sun Yat-sen University Guangzhou 510275 China

In order to understand the composition and quantitative variation of ecdysteriods in the pu- pae of opogona sacchari (Bojer), a new invasive alien pest, we analyzed the pupal ecdysteroid com- position and titers in this pest. The main component of ecdysteriods in the pupae of O. sacchari is 20-hydroxyecdysone. The titre of ecdysteriods in both male pupae and female pupae get higher gradually, and then decreased slowly after reaching a peak (80 ng/pupa). The titre of ecdysteriods was about 30 ng/pupa in the later stage of pupae. The peak of male pupae appeared on the third day, but the peak of female pupae lasted from the second day to the fourth day during pupal developments. The ecdysteroid content was higher in female pupae than in male pupae during specific pupal time (the 1st, 2nd, 4th, 5th, 6th day). We also found that the titre of ec- dysteroids in posterior part of pupae was higher than in anterior part of pupae obviously.

关键词：蜕皮甾体蛹入侵有害物 opogona sacchari

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