饥饿对黄鳝性腺发育及血清褪黑激素水平的影响  

EFFECTS OF STARVATION ON GONADAL DEVELOPMENT AND SERUM MELATONIN LEVELS IN THE RICEFIELD EEL, MONOPTERUS ALBUS ZUIEW

作　　者：石琼[1] 林浩然[2] 邓柏礼[3] 

机构地区：[1]北京师范大学生物学系,北京100875 [2]中山大学生命科学学院,北京510275 [3]香港理工大学应用生物及化学科技学系

出　　处：《北京师范大学学报（自然科学版）》1998年第3期395-398,共4页Journal of Beijing Normal University(Natural Science)

基　　金：香港理工大学合作课题

摘　　要：研究了饥饿对黄鳝（MonopterusalbusZuiew）性腺发育的影响，并试图与血清中褪黑激素水平的变化相联系．实验结果表明，6周饥饿促进黄鳝性转变，6周和1周饥饿皆导致血清褪黑激素水平的午夜值明显高于对照组（p＜0．05和p＜0．001）．由此推论，饥饿促进黄鳝性转变可能是通过提高血清褪黑激素水平来实现的．Previous studies demonstrated that the annual drought cycle caused food shortage and may drive sex change in many aquatic animals. The presend study focuses on the effects of starvation on gonadal developmend and serum melatonin levels in the ricefield eel,Monopterus albus Zuiew. The results show that long-term (for 6 weeks) starvation improves the sex- change process in this species. Both 6 and 1 week starvation significantly increase the mid- dark (00:30 - 01:00) serum melatonin levels (MDSM) compatal with the controls. It is concluded that the improvement effect of starvation on sex change may produce through elevation of mid-dark serum melatonin levels in the ricefield eel.

关 键 词：黄鳝 饥饿 性腺发育 性转变 褪黑激素 

分 类 号：Q959.482[生物学—动物学]