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Characterization of photosynthetic electron transport chain in bioenergy crop Jerusalem artichoke (Helianthus tuberosus L.) under heat stress for sustainable cultivation
Yan, Kun1,3; Chen, Peng1,4; Shao, Hongbo1,2; Zhao, Shijie3; Shao, HB (reprint author), Qingdao Univ Sci & Technol, Inst Life Sci, Zhengzhou Rd53, Qingdao 266042, Peoples R China.E-mail Addresses: shaohongbochu@126.com
2013-10-01
Source PublicationINDUSTRIAL CROPS AND PRODUCTS
ISSN0926-6690
Volume50Issue:.Pages:809-815
Contribution Rank[Yan, Kun; Chen, Peng; Shao, Hongbo] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Bioresources Utilizat;[Shao, Hongbo] Qingdao Univ Sci & Technol, Inst Life Sci;[Yan, Kun; Zhao, Shijie] Shandong Agr Univ, State Key Lab Crop Biol;[Chen, Peng] Chinese Acad Sci, Grad Univ.
AbstractIn order to explore the response of photosynthetic electron transport chain to heat stress, chlorophyll a fluorescence and modulated 820 nm reflection transients were examined in the leaves of Jerusalem artichoke (Helianthus tuberosus L.). J step was elevated at 43 degrees C, suggesting that electron transport beyond primary quinone electron acceptor of photosystem II (Q(A)) was inhibited. I step was elevated at 45 degrees C due to the lowered plastoquinol re-oxidation rate. Significant decrease in the QA reducing reaction centers per photosystem II (PSII) antenna chlorophyll and marked increase in relative variable fluorescence intensity at 300 mu s also occurred at 45 degrees C, indicating that the electron transport chain from PSII donor side to QA was injured. Overall, the fragment between QA and plastoquinol is the most susceptible to heat in the electron transport chain before photosystem I (PSI). The maximal photochemical capacity of PSI was not affected by heat stress even at 48 degrees C, and the interaction between PSII and PSI become unbalanced, when temperature rose to 45 degrees C. At 45 degrees C, prolonged PSI oxidation occurred in the expanding leaves because of the inhibited electron donation from PSII, however, PSI oxidation amplitude decreased in the expanded leaves. We infer that electron transport chain of PSI acceptor side is more sensitive to heat stress than the chain before PSI in the expanded leaves. Therefore, electrons in PSI reaction center could not be efficiently drained to the downstream at high temperature, and then PSI oxidation was blocked. (C) 2013 Elsevier B.V. All rights reserved.
KeywordJerusalem Artichoke Chlorophyll a Fluorescence Transient Photosystem i Photosystem Ii
Subject AreaAgriculture
DOI10.1016/j.indcrop.2013.08.012
Funding OrganizationNational Natural Science Foundation of China 41201292 41171216 ; Opening Foundation of the State Key Lab of Crop Biology, Shandong Agriculture University 2011KF02 ; CAS/SAFEA International Partnership Program for Creative Research Teams, One Hundred-Talent Plan of Chinese Academy of Sciences (CAS) ; National Major Basic Research Program of China 2013CB430403 ; CAS Visiting Professorship for Senior International Scientists 2012T1Z0010 ; Yantai Science & Technology Development Project 2011016 2010245 ; Yantai Double-hundred High-end Talent Plan XY-003-02 ; Science & Technology Development Plan of Shandong Province 010GSF10208 ; 135 Development Plan of VIC-CA
Indexed BySCI
WOS KeywordFLUORESCENCE RISE OJIP ; PHOTOSYSTEM-II ; HIGH-TEMPERATURE ; ENHANCED THERMOTOLERANCE ; CHLOROPHYLL FLUORESCENCE ; TRITICUM-AESTIVUM ; INDUSTRIAL CROP ; PEA LEAVES ; PLANTS ; WHEAT
SubtypeArticle
Language英语
WOS Research AreaAgriculture
WOS IDWOS:000326903600109
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/9036
Collection海岸带生物学与生物资源保护实验室
Corresponding AuthorShao, HB (reprint author), Qingdao Univ Sci & Technol, Inst Life Sci, Zhengzhou Rd53, Qingdao 266042, Peoples R China.E-mail Addresses: shaohongbochu@126.com
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Bioresources Utilizat, Yantai 264003, Peoples R China
2.Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China
3.Shandong Agr Univ, State Key Lab Crop Biol, Tai An 271018, Shandong, Peoples R China
4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
First Author AffilicationYantai Institute of Coastal Zone Research, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yan, Kun,Chen, Peng,Shao, Hongbo,et al. Characterization of photosynthetic electron transport chain in bioenergy crop Jerusalem artichoke (Helianthus tuberosus L.) under heat stress for sustainable cultivation[J]. INDUSTRIAL CROPS AND PRODUCTS,2013,50(.):809-815.
APA Yan, Kun,Chen, Peng,Shao, Hongbo,Zhao, Shijie,&Shao, HB .(2013).Characterization of photosynthetic electron transport chain in bioenergy crop Jerusalem artichoke (Helianthus tuberosus L.) under heat stress for sustainable cultivation.INDUSTRIAL CROPS AND PRODUCTS,50(.),809-815.
MLA Yan, Kun,et al."Characterization of photosynthetic electron transport chain in bioenergy crop Jerusalem artichoke (Helianthus tuberosus L.) under heat stress for sustainable cultivation".INDUSTRIAL CROPS AND PRODUCTS 50..(2013):809-815.
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