Effect of temperature and irradiance on the growth and reproduction of Enteromorpha prolifera J.Ag.(Chlorophycophyta,Chlorophyceae)

被引:9
作者
付刚 [1 ,2 ]
姚建亭 [1 ]
刘福利 [1 ]
刘吉东 [1 ]
王秀良 [1 ]
付万冬 [1 ]
李大鹏 [1 ]
周名江 [1 ]
孙松 [1 ]
段德麟 [1 ]
机构
[1] Institute of Oceanology,Chinese Academy of Science
[2] College of Marine Life Sciences,Ocean University of China
关键词
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中图分类号
Q945 [植物生理学];
学科分类号
0903 ;
摘要
<正>Effect of temperature and irradiance on growth and reproduction of Enteromorpha prolifera that bloomed offshore along the Qingdao coast in summer 2008,was studied.It was showed that E. prolifera propagated mainly asexually with specific growth rate (SGR) of 10.47 at 25℃/40μmol m-2s-1. Under this condition,gametes with two flagellate formed and released in 5 days.At the beginning of the development,the unicell gamete divided into two cells with heteropolarity,and then the apical cell developed into thalli primordial cells,whereas the basal cell developed into rhizoid primordial cells.In 8-day culture,the monoplast gamete developed into juvenile germling of 240μm in length.Unreleased gametes can develop directly within the alga body.E.prolifera could either reproduce through lateral branching or fragmenting except apomixis revealed by Microscopic observation.On aged tissue of E. prolifera,although the degraded pigments partially remained in faded algal filaments,numerous vegetative cells could still divide actively in the algal tissues.
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页码:357 / 362
页数:6
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