10 % and 15 % sucrose layers were identified as light harvesting complexes ; 20 % and 30 % sucrose layers were identified as composed of active ps ii particles ; 40 % sucrose layer represented rather pure ps i complex 確定了10和15層帶的色素蛋白復(fù)合物為捕光色素復(fù)合物; 20和30層帶的復(fù)合物為ps顆粒,具有dcip的光還原活性; 40層帶復(fù)合物為去除了捕光色素的ps復(fù)合物。