摘 要 ：由于研究技术与方法的不断改进 ,人们对海藻 (seaweeds)早期生活史方面的研究兴趣日益增大。评述了近年来海藻有性繁殖过程中配子释放和受精生态学问题。到达一定生理状态的海藻 ,通过对环境暗示应答而诱导配子形成。海藻生殖器官感受另一些特定的环境条件 ,通过有关信号传递机制 ,触发配子释放。海藻配子释放的时间及其所需的环境条件 ,依不同的种类而变化。配子同步释放以及各种适当的环境条件提高了受精频率和受精成功率 ,有利于受精的各种生物的和非生物的因素组合 ,形成了“机会窗 (the window of opportunity)”的概念。近年来的研究表明 ,海藻 (特别是红藻 )的自然受精成功率比以前所认为的要高得多。受精后合子 (胚 )的散布、集落与附着显著地影响其生存以及种群动态。对今后值得进一步研究的方面作了展望。
Abstract:Seaweeds (marine macroalgae) are distributed in the intertidal and subtidal zones of the coasted areas, being major contributors to primary productivity in these habitats. Although studies of benthic seaweeds have made essential contributions to ecological theory, attention has focused primarily upon adult interactions, and relative little attention is paid on the early stage of life history in seaweeds. One major cause is due to the technical difficult for research. However, new approaches and methods prod...