Inductive eff ect of bioactive substances on strobilation of jellyfi sh Aurelia coerulea

作     者：WANG Nan WANG Minxiao WANG Yantao LI Chaolun WANG Nan;WANG Minxiao;WANG Yantao;LI Chaolun

作者机构：Key Laboratory of Marine Ecology and Environmental SciencesCenter of Deep-sea ResearchInstitute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental SciencePilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China University of Chinese Academy of SciencesBeijing 100049China Center for Ocean Mega-ScienceChinese Academy of SciencesQingdao 266071China 

出 版 物：《Journal of Oceanology and Limnology》 (海洋湖沼学报（英文）)

年 卷 期：2020年第38卷第5期

页      面：1548-1558页

核心收录：

学科分类：0710[理学-生物学] 0908[农学-水产] 0905[农学-畜牧学] 0707[理学-海洋科学] 09[农学] 0815[工学-水利工程] 090501[农学-动物遗传育种与繁殖] 

基　　金：Supported by the National Key R&D Program of China(No.2017YFC1404401) the National Natural Science Foundation of China(Nos.41606127,41976135) the Youth Talent Support Program of the Laboratory for Marine Ecology and Environmental Science,Pilot National Laboratory for Marine Science and Technology(Qingdao)(No.LMEESYTSP-2018-01-10)。 

主　　题：Aurelia coerulea jellyfi sh strobilation bioactive substances metamorphosis 

摘      要：The moon jellyfi sh Aurelia spp.is a worldwide distributed scyphozoan species that seasonally blooms in coastal waters.Although the strobilation is directly responsible for the scale of jellyfi sh bloom,the underlying mechanisms remain largely unknown.We exposed Aurelia coerulea polyps to 18 bioactive substances to test their ability to induce strobilation at the natural typically non-strobilation temperature of 21°C.Results revealed that A.coerulea polyps responded in four types.Type I—no change for estradiol,folic acid,iodine,retinoic acid,serotonin hydrochloride,and vitamin A.We suggested that 5-aza-2-deoxycytidine and N-acetyl-L-glutamic acid could not induce strobilation,since the percent of strobilated polyps in these two substances treatments was 3.3%and 1%,respectively.Type II—polyp body elongation for 3,5-diiodo-Ltyrosine,indole-3-acetic acid,L-dopamine,and noradrenaline treatments.Type III—transverse constrictions for L-thyroxine,progesterone,and melatonin treatments.Finally,Type IV—complete strobilation for 5-methoxy-2-methylindole,acetylcholine chloride,and indomethacin treatments,where the pre-strobilation periods were 2,4,and 2 days,and the mean numbers of ephyrae released per strobila were 4.7,5.7,and 5.7,respectively.The results reveal that indole derivatives,which contained methoxy or methyl pharmacophore,were the common strobilation inducer in the genus Aurelia.Iodinated organic compounds,catecholamine,acetylcholine chloride,and retinoic acid are species-specifi c strobilation inducer.Therefore,A.coerulea strobilation is regulated by neuronal and endocrine processes.Our fi ndings provide clues in understanding the mechanism of strobilation and contribute to developing specifi c strobilation antagonists in controlling moon jellyfi sh blooms.