J Integr Plant Biol. ›› 1998, Vol. 40 ›› Issue (8): -.

• Research Articles •    

Studies on the Kinetic Properties of Photosystem Ⅱ Primary Reaction Using Fluorescence Spectroscopy with 470 fs Time Resolution

HOU Jian-Min,KUANG Ting-Yun, CHEN Yao-Dong, YE Tong, YANG Kun-Yun, CUI Yan, TANG Chong-Qin, WANG Shui-Cai, HOU Xun and TANG Pei-Song   

Abstract: The primary reaction kinetics of the isolated photosystem Ⅱ particles and photosystem Ⅱ core complexes from spinach ( Spinacia deracea Mill. ) was investigated using the time-resolved fluorescence spectroscopy with 470 fs time resolution. 2 to 4 lifetime components were detected by the multi-exponential curve fining method. These components were analyzed and discussed in terms of different kinetic processes. It is suggested that 3 ps component is attributed to the charge separation and 0.8 ps, 12 ps, 25 ps and 100 ps components are related to the energy transfer processes. A possible kinetic scheme in photosystem Ⅱ reaction center was proposed based upon the reported previously result.

Key words: Photosynthesis, Primary reaction, Photosystem Ⅱ, Time-resolved spectroscopy, Kinetics

Editorial Office, Journal of Integrative Plant Biology, Institute of Botany, CAS
No. 20 Nanxincun, Xiangshan, Beijing 100093, China
Tel: +86 10 6283 6133 Fax: +86 10 8259 2636 E-mail: jipb@ibcas.ac.cn
Copyright © 2021 by the Institute of Botany, the Chinese Academy of Sciences
Online ISSN: 1744-7909 Print ISSN: 1672-9072 CN: 11-5067/Q