›› 2001, Vol. 44 ›› Issue (1): 27-32.

• 研究论文 • 上一篇    下一篇

褐飞虱体内保幼激素滴度变化及其与翅型分化的关系

戴华国, 吴晓毅, 武淑文   

  • 出版日期:2001-02-20 发布日期:2001-02-20

The change of juvenile hormone titer and its relation with wingdimorphism of brown planthopper,Nilaparvata lugens

DAI Hua-guo,WU Xiao-yi,WU Shu-wen   

  • Online:2001-02-20 Published:2001-02-20

摘要: 用高压液相色谱及放射化学法,分别测定了褐飞虱Nilaparvata lugens 1~5龄若虫体内的保幼激素滴度与保幼激素酯酶活性变化,并用保幼激素类似物(ZR-515)进行体表点滴加以验证。结果表明,褐飞虱雌、雄4龄若虫期及雄虫的5龄若虫初期,短、长翅型间体内保幼激素滴度差异明显,可以认为该阶段是其翅型分化的关键时期。

关键词: 褐飞虱, 翅型分化, 保幼激素滴度

Abstract: The high performance liquid chromatography (HPLC)and radiochemical method were applied to determine the dynamics of juvenile hormone titer and JH esterase activity in the nymphal stages of brown planthopper.The results showed that the JH titers between brachypters and macropters were obviously different in the 4th instar nymphs of both male and female and in the early 5th instar nymph of male.Therefore, these nymphal instars could be considered to be the critical period for wing dimorphism determination,which had been verified with topical application of methoprene (ZR-515).

Key words: brown planthopper, wingform determination, JH titer