Effect of decreasing temperature on the strobilation of Aurelia sp.1  

作　　者：SHI Yan YU Zhigang ZHEN Yu WANG Guoshan WANG Xungong MI Tiezhu 石岩;于志刚;甄毓;王国善;王勋功;米铁柱(College of Environmental Science and Engineering, Ocean University of China;Key Laboratory of Marine Environment and Ecology, Ministry of Education;Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology;Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education)

机构地区：[1]College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China [2]Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, China [3]Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology Qingdao 266071, China [4]Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao 266100, China

出　　处：《Journal of Oceanology and Limnology》2018年第2期465-472,共8页海洋湖沼学报（英文）

基　　金：Supported by the National Basic Research Program of China(973 Program)(No.2011CB403602);the Shandong Provincial Natural Science Foundation of China(No.ZR2014DM007);the Scientific and Technological Innovation Project of the Qingdao National Laboratory for Marine Science and Technology(No.2016ASKJ02)

摘　　要：The worldwide proliferation of marine jellyfish has become a crucial ecological and social issue, and as a cosmopolitan species, Aurelia spp. have received increasing scientific attentions. In the present study, the responses of strobilation in Aurelia sp. 1 to decreasing temperature were illuminated through the expression levels of the retinoid x receptor （RxR） gene and the gene encoding a secreted protein, CL390. We observed that a higher final temperature decreased the strobilation prophase and strobilation interphase periods, and the growth rate of the strobilae ratio increased with increasing CL390 gene expression. The ratio of strobilae at 12~C was highest, and the strobilae showed the higher releasing ratios at both 12℃ and 16℃ compared with those at 4℃ and 8℃. Furthermore, more ephyrae were released at the higher final temperature. Additionally, up-regulation and down-regulation of the CL390 gene were observed in response to the four decreasing temperatures. Although the four CL390 gene transcript levels increased more significantly than the transcript levels of the RxR gene, similar trends were observed in both genes.The worldwide proliferation of marine jellyfish has become a crucial ecological and social issue, and as a cosmopolitan species, A urelia spp. have received increasing scientific attentions. In the present study, the responses of strobilation in A urelia sp.1 to decreasing temperature were illuminated through the expression levels of the retinoid x receptor(Rx R) gene and the gene encoding a secreted protein, CL390. We observed that a higher final temperature decreased the strobilation prophase and strobilation interphase periods, and the growth rate of the strobilae ratio increased with increasing CL390 gene expression. The ratio of strobilae at 12°C was highest, and the strobilae showed the higher releasing ratios at both 12°C and 16°C compared with those at 4°C and 8°C. Furthermore, more ephyrae were released at the higher final temperature. Additionally, up-regulation and down-regulation of the CL390 gene were observed in response to the four decreasing temperatures. Although the four CL390 gene transcript levels increased more significantly than the transcript levels of the Rx R gene, similar trends were observed in both genes.

关 键 词：moon jellyfish strobila retinoid x receptor(RxR) CL390 

分 类 号：P[天文地球]