Significant energy transfer from CpcG2-phycobilisomes to photosystem I in the cyanobacterium Synechococcus sp PCC 7002 in the absence of ApcD-dependent state transitions

doi:10.1016/j.febslet.2012.05.038

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	Significant energy transfer from CpcG2-phycobilisomes to photosystem I in the cyanobacterium Synechococcus sp PCC 7002 in the absence of ApcD-dependent state transitions
	Deng, Guoping 1; Liu, Fei 1; Liu, Xianwei 1; Zhao, Jindong 1,2; Zhao, JD (reprint author), Peking Univ, Coll Life Sci, State Key Lab Prot & Plant Genet Engn, Beijing 100871, Peoples R China.
刊名	FEBS LETTERS
	2012-07-30
卷号	586 期号:16 页码:2342-2345
关键词	Apcd Cpcg Photosystem i Phycobilisome Quantum Efficiency State Transitions
ISSN号	0014-5793
DOI	10.1016/j.febslet.2012.05.038
文献子类	Article
英文摘要	Hemidiscoidal phycobilisomes (PBS), the major light harvesting complexes of photosynthesis in most cyanobacteria, are composed of rods and cores, which are linked by the linker CpcG1 (L-RC). Another type of PBS, CpcG2-PBS exits and their function in energy transfer has not been fully under-stood. We measured growth rates, absorption cross-sections and quantum efficiency of photosystem I in mutant strains of Synechococcus PCC sp. 7002 lacking the linker CpcG2. Our results showed that energy transfer from CpcG2-PBS to PSI in the absence of state transitions could be significant under PBS-absorbing light and energy transfer from two types of PBS is independent to each other. Evidence also suggested that CpcG2 anchors the CpcG2-PBS to thylakoid membranes. (C) 2012 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.; Hemidiscoidal phycobilisomes (PBS), the major light harvesting complexes of photosynthesis in most cyanobacteria, are composed of rods and cores, which are linked by the linker CpcG1 (L-RC). Another type of PBS, CpcG2-PBS exits and their function in energy transfer has not been fully under-stood. We measured growth rates, absorption cross-sections and quantum efficiency of photosystem I in mutant strains of Synechococcus PCC sp. 7002 lacking the linker CpcG2. Our results showed that energy transfer from CpcG2-PBS to PSI in the absence of state transitions could be significant under PBS-absorbing light and energy transfer from two types of PBS is independent to each other. Evidence also suggested that CpcG2 anchors the CpcG2-PBS to thylakoid membranes. (C) 2012 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
WOS关键词	ANABAENA SP PCC-7120 ; SP PCC-7002 ; EXCITATION-ENERGY ; PHYCOBILISOMES ; SYNECHOCYSTIS ; CHLOROPHYLL ; MEMBRANES ; ANTENNA ; MUTANT ; SHAPE
WOS研究方向	Biochemistry & Molecular Biology ; Biophysics ; Cell Biology
语种	英语
WOS记录号	WOS:000306694800022
资助机构	Ministry of Science and Technology[2007AA021405]; National Science Foundation of China[30230040] ; Ministry of Science and Technology[2007AA021405]; National Science Foundation of China[30230040] ; Ministry of Science and Technology[2007AA021405]; National Science Foundation of China[30230040] ; Ministry of Science and Technology[2007AA021405]; National Science Foundation of China[30230040]
公开日期	2012-09-25
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/17011]
专题	水生生物研究所_水生生物分子与细胞生物学研究中心_期刊论文
通讯作者	Zhao, JD (reprint author), Peking Univ, Coll Life Sci, State Key Lab Prot & Plant Genet Engn, Beijing 100871, Peoples R China.
作者单位	1.Peking Univ, Coll Life Sci, State Key Lab Prot & Plant Genet Engn, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Deng, Guoping,Liu, Fei,Liu, Xianwei,et al. Significant energy transfer from CpcG2-phycobilisomes to photosystem I in the cyanobacterium Synechococcus sp PCC 7002 in the absence of ApcD-dependent state transitions[J]. FEBS LETTERS,2012,586(16):2342-2345.
APA	Deng, Guoping,Liu, Fei,Liu, Xianwei,Zhao, Jindong,&Zhao, JD .(2012).Significant energy transfer from CpcG2-phycobilisomes to photosystem I in the cyanobacterium Synechococcus sp PCC 7002 in the absence of ApcD-dependent state transitions.FEBS LETTERS,586(16),2342-2345.
MLA	Deng, Guoping,et al."Significant energy transfer from CpcG2-phycobilisomes to photosystem I in the cyanobacterium Synechococcus sp PCC 7002 in the absence of ApcD-dependent state transitions".FEBS LETTERS 586.16(2012):2342-2345.