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中国对虾某些组织中蜕皮甾类的测定
罗日祥¹, 李光友¹, 王玉英¹, 曹梅讯², 蒋蓉静²
1.中国科学院海洋研究所;2.中国科学院上海昆虫研究所

摘要:

蜕皮激素是甲壳动物主要的内分泌物质之一，属蜕皮甾类(MH)，具有特异的生理功能。目前的资料对蜕皮激素可以诱导蜕皮的看法比较一致；也有一些学者认为它能加速蛋白质和DNA的合成(罗日祥、王玉英，1984; Lowe, M. E., D. H. S. Horn and M. N. Galbraith, 1968; Neufeld, G、J., J. A. Thomson and D. H. S. Horn, 1968),但论据还不够充分。对于蜕皮激素在虾体各组织中的分布，Gorell, Gilbert and Siddall(1972)用同位素标记示踪的方法在Orconectes virilis 作过研究。Chang and O’connor(1978)对粗腿厚纹蟹(Pachygrapsus crassipes)各组织中的蜕皮激素作过定性定量的研究。为了探索蜕皮激素在中国对虾(Penaeus orientalis)体内的生理功能，本文报道了以放射免疫分析法对对虾各器官组织中的蜕皮甾类含量的测定结果。

关键词: 中国对虾、蜕皮甾类

DOI：

分类号:

基金项目:中国科学院海洋研究所调查研究报告第1442号

DETERMlNATION OF ECDYSTEROID CONCENTRATION IN CERTAIN ORGANS OF PENAEUS ORIENTALIS

Luo Rixiang¹, Li Guangyou¹, Wang Yuying¹, Cao Meixun², Jiang Rongjing²

1.Institute of Oceanology, Academia Sinica;2.Shanghai Institute of Entomology, Academia Sinica

Abstract:

Ecdysteroid concentration determined by RIA in certain organs (hepatopancreas, hemolymph, eyestalk, muscle, heart, etc) of prawn (Penaeus orientalis) demonstrated that the concentration of ecdysteroid in prawn collected from Jiaozhou Bay, Qingdao in September and October is generally higher than that in the matured prawn collected in May. The concentration of ecdysteroid in eyestalk of the prawn during the moulting period is the highest. The ecdysteroid concentrations in the organs excepting muscle during the intermoult period increased gradually, and reached the highest during the moulting period. This result suggests that the activity of eyestalk Y-organ changes within moult cycle. The present experiment shows that concentration of ecdysteroid in the inclusions of midgut is 2.27一28.36 pg/mg, which suggests that there is rich ecdysteroid in the food ingested by prawn from natural sea.

Key words: PENAEUS ORIENTALIS, ECDYSTEROID CONCENTRATION