Abstract

The energy transfer( ET ) and electronic excitation transport( EET ) are two important ultrafast primary processes in PS II reaction centers. All kinds of ultrafast laser spectroscopy techniques are used in the dynamic study on PS II reaction center¹. Although many results have been obtained, much debate still exists on the structure and function of the reaction center, the physical mechanism and rates of the ET and EET². In this paper we report some experimental results on the ultrafast dynamic study on the ET and EET in the PS II reaction center. The PS II reaction center, D1/D2/cyt-b559 complex, is isolated and purified from the spinach, which contains 4 or 5 Chia molecules, 2 pheoa molecules, 1 β-carotene molecule.

© 1994 Optical Society of America