中文摘要：

用天然海水与海水晶配置成的人工海水按10：0，8：2，6：4，4：6，2：8，0：10的体积比配成6种不同的培养液，用它们培养野生型坛紫菜叶状体。培养30d后，叶状体的生长情况如下：在100％天然海水中培养的坛紫菜叶状体生长最快，其它组的生长快慢依次为：含20％〉40％〉60％〉80％的海水晶人工海水组。在100％海水晶人工海水组培养的叶状体5d后死亡。叶状体叶绿素α（Chl.α）含量在20％海水晶人工海水组中最高，其余各组的含量相差不大，但藻红蛋白（PE）和藻蓝蛋白（PC）含量均比100％天然海水组稍低。用上述6种培养液培养坛紫菜丝状体，结果表明在60％海水晶人工海水组中培养的自由丝状体鲜重增加最明显，生长情况最好，100％天然海水组增重最少，其余各组增重差异不明显。坛紫菜丝状体在100％海水晶人工海水中生长良好，这说明可以用海水晶人工海水来培养坛紫菜丝状体。

英文摘要：

The young gametophytic blades of the wild type in Porphyra haitanensis were cultured respectively in different culture solutions which were composed of nature seawater and artificial seawater in different proportions （ 10 ：0, 8：2,6：4,4：6,2：8,0： 10）, and being enriched with MES medium. After 30 days of culture, the growth of the blades was the fastest in 100% natural seawater, and the growth speed in the others was 20% 〉 40% 〉 60% 〉 80% of seawater crystal, respectively. However, the blades cultured in 100% seawater crystal died after 5 days. The content of chlorophyll a （Chl. a） was highest in the blades cultured in 20% seawater crystal, and no obvious differences in the content of Chl. a were found in the blades cultured in other culture solutions, while the contents of phycoerythrin and phycocyanin in the blades were a litter lower than those of the blades cultured in the 100% seawater. The free-living conchocelis of Porphyra haitanensis were cultured in the above six kinds of culture solutions. After five weeks of culture, the increase of the wet weight of the free-living conchocelis cultured in 60% seawater crystal was most significant, but least increase of wet weight appeared in conchocelis cultured in 100% natural seawater. The weight increase of conchocelis cultured in other culture solutions did not show significant differences. The free-living conchocelis of P. haitanensis grew well in 100% of seawater crystal, indicating that its conchocelis can be cultured in 100% of seawater crystal.