Salt pretreatment alleviated salt-induced photoinhibition in sweet sorghum

doi:10.1007/s40626-015-0038-2

	Salt pretreatment alleviated salt-induced photoinhibition in sweet sorghum
	Yan, K; Zhao, SJ; Liu, ZN; Chen, XB; Yan, K (reprint author), Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res YIC, Shandong Prov Key Lab Coastal Environm Proc,YICCA, Yantai 264003, Peoples R China. kyan@yic.ac.cn
发表期刊	THEORETICAL AND EXPERIMENTAL PLANT PHYSIOLOGY
ISSN	2197-0025
	2015-06
卷号	27 期号:2 页码:119-129
关键词	Photosynthesis Psii Psi Na++
DOI	10.1007/s40626-015-0038-2
产权排序	[Yan, Kun; Chen, Xiaobing] Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res YIC, Shandong Prov Key Lab Coastal Environm Proc,YICCA, Yantai 264003, Peoples R China; [Zhao, Shijie] Shandong Agr Univ, State Key Lab Crop Biol, Tai An 271018, Shandong, Peoples R China; [Liu, Zhaoni] Yantai Univ, Coll Environm & Mat Engn, Yantai 264005, Peoples R China
作者部门	中科院海岸带环境过程与生态修复重点实验室
英文摘要	Sweet sorghum is an important energy crop. This study aimed to investigate the effects of salt pretreatment on the interaction between photosystem II (PSII) and photosystem I (PSI) upon salt stress. In this study, sweet sorghum was pretreated with 150 mM NaCl for 10 days, and subsequently, the pretreated plants were subjected to severe salt stress at 300 mM NaCl. PSII and PSI photoinhibition occurred in non-pretreated plants after 4 days of salt stress, as the maximum quantum yield of PSII (Fv/Fm) and the maximal photochemical capacity of PSI (Delta MR/MR0) significantly decreased, and their normal coordination was destroyed. The significant positive correlation between Fv/Fm and Delta MR/MR0 under salt stress indicated that PSII photoinhibition was in relation to PSI photoinhibition, and PSI photoinhibition might lead to PSII photoinhibition through inhibiting electron transport at the acceptor side of PSII. Salt stress did not induce PSII photoinhibition in salt-pretreated plants, and thus, salt pretreatment protected PSI against photoinhibition not by aggravating PSII photoinhibition. Salt pretreatment mitigated the decrease in CO2 assimilation, reduced the feedback inhibition on photosynthetic electron transport and then contributed to suppressing PSI and PSII photoinhibition in sweet sorghum under salt stress. Therefore, the normal coordination between PSII and PSI was maintained in salt-pretreated plants. In conclusion, salt pretreatment ensured normal PSII and PSI coordination by preventing photoinhibition in sweet sorghum under salt stress.
文章类型	期刊论文
资助机构	National Natural Science Foundation of China [41201292] ; Special Project of Commonweal Vocation (Ocean) [201105020]
收录类别	SCI
语种	英语
关键词[WOS]	PHOTOSYNTHETIC ELECTRON-TRANSPORT ; PHOTOSYSTEM-II ; CHLOROPHYLL FLUORESCENCE ; NACL PRETREATMENT ; STRESS ; TOLERANCE ; SALINITY ; PLANTS ; LEAVES ; GROWTH
研究领域[WOS]	Plant Sciences
WOS记录号	WOS:000361740300005
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/13814
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Yan, K (reprint author), Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res YIC, Shandong Prov Key Lab Coastal Environm Proc,YICCA, Yantai 264003, Peoples R China. kyan@yic.ac.cn
推荐引用方式 GB/T 7714	Yan, K,Zhao, SJ,Liu, ZN,et al. Salt pretreatment alleviated salt-induced photoinhibition in sweet sorghum[J]. THEORETICAL AND EXPERIMENTAL PLANT PHYSIOLOGY,2015,27(2):119-129.
APA	Yan, K,Zhao, SJ,Liu, ZN,Chen, XB,&Yan, K .(2015).Salt pretreatment alleviated salt-induced photoinhibition in sweet sorghum.THEORETICAL AND EXPERIMENTAL PLANT PHYSIOLOGY,27(2),119-129.
MLA	Yan, K,et al."Salt pretreatment alleviated salt-induced photoinhibition in sweet sorghum".THEORETICAL AND EXPERIMENTAL PLANT PHYSIOLOGY 27.2(2015):119-129.

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