The results are reported in this paper of the observations made on the survival rate, division, development and regeneration of isolated cells from porphyra haitanensis ( Rhodophyta) radiated by ultraviolet radiation. 报道紫外线辐射离体培养的坛紫菜叶状体细胞,对细胞存活率,分裂和发育再生情况进行观察的结果。