Absorption , fluorescence emission and excitation spectra of five pigment - protein complexes were determined . photosynthetic electron transfer was measured from the dcip photoreduction . p700 concentration was assayed from the ferricyanide - oxdised minus ascorbate - reduced difference spectrum 测定裙带菜各色素蛋白复合物的吸收光谱、荧光发射光谱和荧光激发光谱,并进行了dcip的光还原测定和化学法的氧化还原差示光谱测定。