| 银盾革蜱若虫发育期20-羟基蜕皮酮含量变化规律(英语) |
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| 引用本文： | 刘敬泽,姜在阶,云自厚,杨亦萍.银盾革蜱若虫发育期20-羟基蜕皮酮含量变化规律(英语)[J].Entomologia Sinica,1995(4). |
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| 作者姓名： | 刘敬泽 姜在阶 云自厚 杨亦萍 |
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| 作者单位： | 北京师范大学生物系，北京师范大学生物系，北京师范大学，北京师范大学 北京100875，北京100875，化学系 北京100875，化学系 北京100875 |
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| 摘 要： | 本文利用高效液相色谱(HPLC)对银盾革蜱饥饿、吸血和饱血后若虫整体水平20-羟基蜕皮酮含量变化规律进行了研究.结果表示20-羟基蜕皮酮存在于若虫整个发育期,其含量变化具有两个峰.第一个峰小,出现在吸血期(吸血后5天),含量为2.34ng/只,该峰出现后,若虫快速饱血并从宿主体落下;第二个峰大,出现在蜕化期(饱血后8天),含量为16.17ng/只,此峰可能与上表皮沉积有关.从饱血后第6天至饱血后第8天,20-羟基蜕皮酮含量迅速增加,皮层溶离发生在饱血后7天左右.
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QUANTITATIVE VARIATION OF 20-HYDROXYECDYSONE IN THE NYMPH OF DERMACENTOR NIVEUS NEUMANN |
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| Authors: | Jingze Liu Zaijie Jiang Zihou Yun and Yiping Yang |
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| Institution: | Jingze Liu,Zaijie Jiang,Zihou Yun and Yiping Yang Department of Biology and Department of Chemistry,Beijing Normal University,Beijing 100875,China |
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| Abstract: | The variation of 20-hydroxyecdysone (20 E) levels in the unfed, feeding and engorged nymphs of Dermacentor niveus was studied. The results showed that 20 E existed in all stages of nymphal development. There were two peaks. A small peak (2. 34 ng/nymph) appeared in the feeding period (5 days after attachment) which was connected with the fast feeding before dropping from the host, and a big peak (16.17 ng/nymph) in the moulting period (8 days after engorgement). The latter might be correlated with epicuticle deposition. From the 6th day to the 8th day after engorgement, the level of 20 E rose rapidly. Apolysis occurred in this period. |
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| Keywords: | Dermacentor niveus nymph 20-hydroxyecdysone |
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