The resuits show that UV-B radiation is lethal for Chlamydomonas nivalis, and that the contents of chlorophyll, carotenoid and astaxanthin increase after the radiation.

• 结果表明，UV-B辐射对极地雪藻具有一定的致死效应，UV-B辐射后雪藻细胞的叶绿素和类胡萝卜素含量增加，虾青素含量也显著提高。