Temperature-induced decoupling of phycobilisomes from reaction centers

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	Temperature-induced decoupling of phycobilisomes from reaction centers
	Li, Y; Zhang, JP; Xie, J; Zhao, JQ; Jiang, LJ
刊名	BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
	2001-04-02
卷号	1504 期号:2-3 页码:229-234
关键词	Phycobilisome-thylakoid Membrane Complex Photosystem Energy Transfer Decoupling
ISSN号	0005-2728
英文摘要	Temperature-induced decoupling of phycobilisomes (PBSs) from the reaction centers in the PBS-thylakoid membrane complexes was observed at 0 degreesC. The fluorescence yields of photosystem (PS) I and PSII decreased and that of PBSs increased with selective excitation of PBSs at 0 degreesC, while the yield of PBSs decreased and those of the two photosystems increased with selective excitation of chlorophyll a at room temperature (RT). It indicated that the decoupling of PBSs from the two photosystems led to changes of energy transfer efficiencies, which can be explained by partial detachment of PBSs from thylakoid membrane. The temperature-dependent processes were reversible, i.e. with temperature going up to RT, the complexes could restore to the functionally coupled state with a time constant about 30 s. Based on these results, it could be deduced that PBSs should be in parallel connection with the two photosystems. (C) 2001 Elsevier Science B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000167570500005
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/77277]
专题	中国科学院化学研究所
通讯作者	Zhao, JQ
作者单位	Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Li, Y,Zhang, JP,Xie, J,et al. Temperature-induced decoupling of phycobilisomes from reaction centers[J]. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS,2001,1504(2-3):229-234.
APA	Li, Y,Zhang, JP,Xie, J,Zhao, JQ,&Jiang, LJ.(2001).Temperature-induced decoupling of phycobilisomes from reaction centers.BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS,1504(2-3),229-234.
MLA	Li, Y,et al."Temperature-induced decoupling of phycobilisomes from reaction centers".BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1504.2-3(2001):229-234.