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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, Guoping1; Liu, Fei1; Liu, Xianwei1; Zhao, Jindong1,2; Zhao, JD (reprint author), Peking Univ, Coll Life Sci, State Key Lab Prot & Plant Genet Engn, Beijing 100871, Peoples R China.
2012-07-30
Source PublicationFEBS LETTERS
ISSN0014-5793
Volume586Issue:16Pages:2342-2345
AbstractHemidiscoidal 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.
SubtypeArticle
KeywordApcd Cpcg Photosystem i Phycobilisome Quantum Efficiency State Transitions
Department[Deng, Guoping; Liu, Fei; Liu, Xianwei; Zhao, Jindong] Peking Univ, Coll Life Sci, State Key Lab Prot & Plant Genet Engn, Beijing 100871, Peoples R China; [Zhao, Jindong] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
DOI10.1016/j.febslet.2012.05.038
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationMinistry 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]
Indexed BySCI
Language英语
WOS Research AreaBiochemistry & Molecular Biology ; Biophysics ; Cell Biology
WOS SubjectBiochemistry & Molecular Biology ; Biophysics ; Cell Biology
WOS IDWOS:000306694800022
WOS KeywordANABAENA SP PCC-7120 ; SP PCC-7002 ; EXCITATION-ENERGY ; PHYCOBILISOMES ; SYNECHOCYSTIS ; CHLOROPHYLL ; MEMBRANES ; ANTENNA ; MUTANT ; SHAPE
Funding OrganizationMinistry 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]
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/17011
Collection水生生物分子与细胞生物学研究中心_期刊论文
Corresponding AuthorZhao, JD (reprint author), Peking Univ, Coll Life Sci, State Key Lab Prot & Plant Genet Engn, Beijing 100871, Peoples R China.
Affiliation1.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
Recommended Citation
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.
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