中国科学院水生生物研究所机构知识库
Advanced  
IHB OpenIR  > 中科院水生所知识产出(2009年前)  > 期刊论文
学科主题: Biochemistry & Molecular Biology; Biophysics
题名: ApcD is necessary for efficient energy transfer from phycobilisomes to photosystem I and helps to prevent photoinhibition in the cyanobacterium Synechococcus sp PCC 7002
作者: Dong, Chunxia1; Tang, Aihui1; Zhao, Jindong1, 2; Mullineaux, Conrad W.3; Shen, Gaozhong4; Bryant, Donald A.4
通讯作者: Zhao, JD, Peking Univ, Coll Life Sci, State Key Lab Prot & Plant Genet Engn, Beijing 100871, Peoples R China
关键词: Cyanobacteria ; Phycobilisome ; Photosynthesis ; State transition ; Photosystem I ; Photosystem II ; Synechococcus sp PCC 7002
刊名: BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
发表日期: 2009-09-01
DOI: 10.1016/j.bbabio.2009.04.007
卷: 1787, 期:9, 页:1122-1128
收录类别: SCI
文章类型: Article
部门归属: [Dong, Chunxia; Tang, Aihui; 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, Peoples R China; [Mullineaux, Conrad W.] Queen Mary Univ London, Sch Biol Sci, London E1 4NS, England; [Shen, Gaozhong; Bryant, Donald A.] Penn State Univ, Dept Biochem & Mol Biol, University Pk, PA 16802 USA
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: The National Natural Science Foundation of China [30230040]; Ministry of Science and Technology of China [2009CB11850]; Wellcome Trust ; Biotechnology and Biological Sciences Research Council ; U.S. National Science Foundation [MCB-0519743]
类目[WOS]: Biochemistry & Molecular Biology ; Biophysics
研究领域[WOS]: Biochemistry & Molecular Biology ; Biophysics
摘要: Phyrobilisomes (PBS) are the major light-harvesting, protein-pigment complexes in cyanobacteria and red algae. PBS absorb and transfer light energy to photosystem (PS) II as well as PS I, and the distribution of light energy from PBS to the two photosystems is regulated by light conditions through a mechanism known as state transitions. In this study the quantum efficiency of excitation energy transfer from PBS to PS I in the cyanobacterium Synechococcus sp. PCC 7002 was determined, and the results showed that energy transfer from PBS to PS I is extremely efficient. The results further demonstrated that energy transfer from PBS to PS I occurred directly and that efficient energy transfer was dependent upon the allophycocyanin-B alpha subunit, ApcD. In the absence of ApcD, cells were unable to perform state transitions and were trapped in state 1. Action spectra showed that light energy transfer from PBS to PS I was severely impaired in the absence of ApcD. An apcD mutant grew more slowly than the wild type in light preferentially absorbed by phyrobiliproteins and was more sensitive to high light intensity. On the other hand, a mutant lacking ApcF, which is required for efficient energy transfer from PBS to PS II, showed greater resistance to high light treatment. Therefore, state transitions in cyanobacteria have two roles: (1) they regulate light energy distribution between the two photosystems; and (2) they help to protect cells from the effects of light energy excess at high light intensities. (C) 2009 Elsevier B.V. All rights reserved.
英文摘要: Phyrobilisomes (PBS) are the major light-harvesting, protein-pigment complexes in cyanobacteria and red algae. PBS absorb and transfer light energy to photosystem (PS) II as well as PS I, and the distribution of light energy from PBS to the two photosystems is regulated by light conditions through a mechanism known as state transitions. In this study the quantum efficiency of excitation energy transfer from PBS to PS I in the cyanobacterium Synechococcus sp. PCC 7002 was determined, and the results showed that energy transfer from PBS to PS I is extremely efficient. The results further demonstrated that energy transfer from PBS to PS I occurred directly and that efficient energy transfer was dependent upon the allophycocyanin-B alpha subunit, ApcD. In the absence of ApcD, cells were unable to perform state transitions and were trapped in state 1. Action spectra showed that light energy transfer from PBS to PS I was severely impaired in the absence of ApcD. An apcD mutant grew more slowly than the wild type in light preferentially absorbed by phyrobiliproteins and was more sensitive to high light intensity. On the other hand, a mutant lacking ApcF, which is required for efficient energy transfer from PBS to PS II, showed greater resistance to high light treatment. Therefore, state transitions in cyanobacteria have two roles: (1) they regulate light energy distribution between the two photosystems; and (2) they help to protect cells from the effects of light energy excess at high light intensities. (C) 2009 Elsevier B.V. All rights reserved.
关键词[WOS]: STATE TRANSITIONS ; EXCITATION-ENERGY ; SP PCC-7002 ; PHOTOSYNTHETIC APPARATUS ; THYLAKOID MEMBRANES ; ANACYSTIS-NIDULANS ; LIGHT ; MUTANT ; SYNECHOCYSTIS ; FLUORESCENCE
语种: 英语
WOS记录号: WOS:000267926900005
ISSN号: 0005-2728
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/7660
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
ApcD is necessary for efficient energy transfer from phycobilisomes to photosystem I and helps to prevent photoinhibition in the cyanobacterium Synechococcus sp PCC 7002.pdf(511KB)----开放获取--View Download

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, Peoples R China
3.Queen Mary Univ London, Sch Biol Sci, London E1 4NS, England
4.Penn State Univ, Dept Biochem & Mol Biol, University Pk, PA 16802 USA

Recommended Citation:
Dong, Chunxia; Tang, Aihui; Zhao, Jindong; Mullineaux, Conrad W.; Shen, Gaozhong; Bryant, Donald A..ApcD is necessary for efficient energy transfer from phycobilisomes to photosystem I and helps to prevent photoinhibition in the cyanobacterium Synechococcus sp PCC 7002,BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS,2009,1787(9):1122-1128
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Dong, Chunxia]'s Articles
[Tang, Aihui]'s Articles
[Zhao, Jindong]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Dong, Chunxia]‘s Articles
[Tang, Aihui]‘s Articles
[Zhao, Jindong]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: ApcD is necessary for efficient energy transfer from phycobilisomes to photosystem I and helps to prevent photoinhibition in the cyanobacterium Synechococcus sp PCC 7002.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2016  中国科学院水生生物研究所 - Feedback
Powered by CSpace