Characterization of photosynthetic electron transport chain in bioenergy crop Jerusalem artichoke (Helianthus tuberosus L.) under heat stress for sustainable cultivation

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 海岸带生物学与生物资源利用重点实验室 > 海岸带生物学与生物资源利用所重点实验室

	Characterization of photosynthetic electron transport chain in bioenergy crop Jerusalem artichoke (Helianthus tuberosus L.) under heat stress for sustainable cultivation
	Yan, Kun1,3 ; Chen, Peng 1,4; Shao, Hongbo 1,2; Zhao, Shijie 3
刊名	INDUSTRIAL CROPS AND PRODUCTS
	2013-10-01
卷号	50 期号:.页码:809-815
关键词	Jerusalem artichoke Chlorophyll a fluorescence transient Photosystem I Photosystem II
ISSN号	0926-6690
通讯作者	Shao, HB (reprint author), Qingdao Univ Sci & Technol, Inst Life Sci, Zhengzhou Rd53, Qingdao 266042, Peoples R China.E-mail Addresses: shaohongbochu@126.com
产权排序	[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.
英文摘要	In 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.
学科主题	Agriculture
研究领域[WOS]	Agriculture
关键词[WOS]	FLUORESCENCE RISE OJIP ; PHOTOSYSTEM-II ; HIGH-TEMPERATURE ; ENHANCED THERMOTOLERANCE ; CHLOROPHYLL FLUORESCENCE ; TRITICUM-AESTIVUM ; INDUSTRIAL CROP ; PEA LEAVES ; PLANTS ; WHEAT
收录类别	SCI
语种	英语
WOS记录号	WOS:000326903600109
公开日期	2016-04-26
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/9036]
专题	烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
作者单位	1.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
推荐引用方式 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.(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.