Abstract
The photosynthetic antenna complex is composed of the core and peripheral antenna. While size and composition of the core antenna are not influenced by the amount of light, those of the peripheral antenna could vary under the different light conditions. Details for this light acclimation have not been well understood.
We first isolated a complex of the photosystemII and the LHCII from a green alga C.reinhardtii grown under the normal conditions. The obtained complex was examined by SDS-PAGE. Bands corresponding to the antenna subunits were then determined by microsequencing. Seven subunits of LHCI and three of LHCII were identified together with information from the EST library. Composition of the subunits which constitutes for the peripheral antenna was further investigated by using the membranes prepared under different light conditions. Acclimation of the light harvesting antenna to environmental light will be discussed.
