Abstract
Chlamydomonas raudensis (UWO241) is a psychrophilic green alga found in the permanently ice-covered Lake Bonny, Antarctica. Because of the thick ice cap, which only blue-green light can pass through, the light environment in the lake is not disturbed throughout a year. It has been reported that C. raudensis is deficient in state transition, one of the plant photoacclimation mechanisms, due probably to the stable light environment. In this study, we investigated the differences in photoacclimation mechanisms between C. raudensis and model organism C. reinhardtii. We carried out the biochemical and spectroscopical analyses. The obtained results indicate that the psychrophile has a unique photoacclimation mode other than state transition.
