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

作　　者：付刚 姚建亭 刘福利 刘吉东 王秀良 付万冬 李大鹏 周名江 孙松 段德麟 

机构地区：[1]Institute of Oceanology,Chinese Academy of Science [2]College of Marine Life Sciences,Ocean University of China

出　　处：《Chinese Journal of Oceanology and Limnology》2008年第4期357-362,共6页中国海洋湖沼学报（英文版）

基　　金：Supported by the National Key Technology Support Program,Qingdao Sci & Tech Bureau and National High Technology Research and Development Program of China (No.2006AA09Z21)

摘　　要：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℃/40 μmol 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 240 μm 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.开花的 Enteromorpha prolifera 的生长和复制上的温度和发光的效果沿着在夏天 2008 的 Qingdao 海岸近海，被学习。它被看那 E。在 25 ° C /40 &#956;mol m <SUP>&#8722;2</SUP 与 10.47 的特定的生长率(SGR ) 无性地主要宣传的 prolifera > s <SUP>&#8722;1</SUP> 。在这个条件下面，有二的配偶子鞭打在 5 形成了并且释放天。在发展的开始， unicell 配偶子与异种极性把房间划分了成二，然后顶端的房间开发了初发的房间进 thalli，而基础房间发展成假根的初发的房间。在 8 天的文化，单音的原浆配偶子在长度发展成 240 &#956;m 的少年细菌石楠。Unreleased 配偶子能在水藻身体以内直接发展。E。prolifera 也能通过除了显微镜的观察揭示的单性生殖的侧面的分叉或碎裂复制。在 E 的年老的织物上。prolifera 尽管降级的颜料部分留在褪色的海藻的细丝，众多的植物的房间能仍然在海藻的纸巾活跃地划分。

关 键 词：Enteromorpha prolifera growth REPRODUCTION gamete development 

分 类 号：Q945[生物学—植物学]