Estimation of the steady-state cyclic electron flux around PSI in spinach leaf discs in white light, CO2-enriched air and other varied conditions

doi:10.1071/FP13010

	Estimation of the steady-state cyclic electron flux around PSI in spinach leaf discs in white light, CO2-enriched air and other varied conditions
	Kou, Jiancun ; Takahashi, Shunichi ; Oguchi, Riichi ; Fan, Da-Yong ; Badger, Murray R.; Chow, Wah Soon 1
	2013
发表期刊	FUNCTIONAL PLANT BIOLOGY
ISSN	1445-4408
卷号	40 期号:10 页码:1018-1028
摘要	Cyclic electron flux (CEF) around PSI is essential for efficient photosynthesis and aids photoprotection, especially in stressful conditions, but the difficulty in quantifying CEF is non-trivial. The total electron flux through PSI (ETR1) and the linear electron flux (LEFO2) through both photosystems in spinach leaf discs were estimated from the photochemical yield of PSI and the gross oxygen evolution rate, respectively, in CO2-enriched air. Delta Flux = ETR1 - LEFO2 is an upper estimate of CEF. Infiltration of leaf discs with 150 mu M antimycin A did not affect LEFO2, but decreased DFlux 10-fold. Delta Flux was practically negligible below 350 mu mol photons m(-2) s(-1), but increased linearly above it. The following results were obtained at 980 mmol photons m(-2) s(-1). Delta Flux increased 3-fold as the temperature increased from 5 degrees C to 40 degrees C. It did not decline at high temperature, even when LEFO2 decreased. Delta Flux increased by 80% as the relative water content of leaf discs decreased from 100 to 40%, when LEFO2 decreased 2-fold. The method of using Delta Flux as a non-intrusive upper estimate of steady-state CEF in leaf tissue appears reasonable when photorespiration is suppressed.
关键词	antimycin A cyclic electron flow linear electron flow P700 photosystem I
学科领域	Plant Sciences
DOI	10.1071/FP13010
收录类别	SCI
语种	英语
WOS关键词	WATER-WATER CYCLE ; PHOTOSYSTEM-I ; CHLOROPHYLL FLUORESCENCE ; QUANTUM YIELD ; C-3 PLANTS ; TEMPERATURE-DEPENDENCE ; REDOX STATE ; TRANSPORT ; FLOW ; LEAVES
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000324338000005
出版者	CSIRO PUBLISHING
文献子类	Article
出版地	COLLINGWOOD
资助机构	China Scholarship Council Fellowship(China Scholarship Council) ; JSPS Postdoctoral Fellowship for Research Abroad(Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of Science) ; Knowledge Innovation Program of the Chinese Academy of Sciences(Chinese Academy of SciencesKnowledge Innovation Program of the Chinese Academy of Sciences) ; Australian Research Council(Australian Research Council) ; Grants-in-Aid for Scientific Research(Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of ScienceGrants-in-Aid for Scientific Research (KAKENHI))
作者邮箱	Badger, Murray R/C-8153-2009 ; Oguchi, Riichi/A-4685-2011 ; Chow, Wah Soon/D-2010-2009 ; Takahashi, Shunichi/F-6883-2010
作品OA属性	Green Submitted
引用统计	被引频次：43[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28189
专题	植被与环境变化国家重点实验室
作者单位	1.Northwest A&F Univ, Coll Anim Sci & Technol, Yangling 712100, Shaanxi, Peoples R China 2.Australian Natl Univ, Div Plant Sci, Res Sch Biol, Coll Med Biol & Environm, Canberra, ACT 0200, Australia 3.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Kou, Jiancun,Takahashi, Shunichi,Oguchi, Riichi,et al. Estimation of the steady-state cyclic electron flux around PSI in spinach leaf discs in white light, CO2-enriched air and other varied conditions[J]. FUNCTIONAL PLANT BIOLOGY,2013,40(10):1018-1028.
APA	Kou, Jiancun,Takahashi, Shunichi,Oguchi, Riichi,Fan, Da-Yong,Badger, Murray R.,&Chow, Wah Soon.(2013).Estimation of the steady-state cyclic electron flux around PSI in spinach leaf discs in white light, CO2-enriched air and other varied conditions.FUNCTIONAL PLANT BIOLOGY,40(10),1018-1028.
MLA	Kou, Jiancun,et al."Estimation of the steady-state cyclic electron flux around PSI in spinach leaf discs in white light, CO2-enriched air and other varied conditions".FUNCTIONAL PLANT BIOLOGY 40.10(2013):1018-1028.

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