光、温对鼠尾藻卵子排放和幼孢子体生长的影响  

Effects of light and temperature on egg releasing and young sporophyte growth of Sargassum thunbergii

作　　者：梁洲瑞[1,2] 孙修涛[1] 王飞久[1] 汪文俊[1] 丁昌玲[1] 李涛[1] 刘坤[1,2] 

机构地区：[1]农业部海洋渔业资源可持续利用重点开放实验室中国水产科学研究院黄海水产研究所,青岛266071 [2]上海海洋大学水产与生命学院,201306

出　　处：《渔业科学进展》2012年第1期109-113,共5页Progress in Fishery Sciences

基　　金：国家"863"项目(2006AA10A416;2012AA100813);公益性行业(农业)专项(200903030)共同资助

摘　　要：以成熟的鼠尾藻生殖托为材料,研究了不同温度(13～23℃)、光照度(3000～12000lx)和光照周期(15L∶9D,12L∶12D,9L∶16D)对鼠尾藻排卵及幼孢子体生长的影响。结果显示,温度在20～23℃范围,有利于鼠尾藻卵子的排放;在3000～12000lx范围内,光照度越高,越有利于鼠尾藻卵子的排放;光周期不是影响卵子排放的主要因素,光照度是鼠尾藻幼孢子体生长的重要因子;温度是制约鼠尾藻幼孢子体生长的关键因子,水温低于16℃时不利于幼孢子体的快速生长。The mature receptacles of Sargassum thunbergii were used as materials in this experiment. The effects of temperature（13-23 ℃）, illumination （3 000-12 0001x） and photoperiod （15 L -9 D, 12 L ： 12 D, and 9 L ： 16 D） on egg releasing and young sporophyte growth of S. thunbergii were investigated. It was found that it is conducive to releasing eggs at 20-23 ℃. Between 3 000-120001x, higher illumination was more favorable for releasing eggs. Photoperiod was not the main factor of affecting the egg releasing speed. Illumination was an important but not a key factor for the growth of S. thunbergii young sporophyte. Temperature was a key factor for the growth of young sporophyte. Temperature below 16℃ was not conducive to the growth of young sporophyte.

关 键 词：鼠尾藻 卵子 孢子体 温度 光 排放 

分 类 号：Q945.53[生物学—植物学] Q945.4