Detection of Photosynthetic Performance of Stipa bungeana Seedlings under Climatic Change using Chlorophyll Fluorescence Imaging

doi:10.3389/fpls.2015.01254

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	Detection of Photosynthetic Performance of Stipa bungeana Seedlings under Climatic Change using Chlorophyll Fluorescence Imaging
	Song, Xiliang 3; Zhou, Guangsheng 2; Xu, Zhenzhu 3; Lv, Xiaomin 3; Wang, Yuhui 3
刊名	FRONTIERS IN PLANT SCIENCE
	2016
卷号	6
关键词	Stipa bungeana chlorophyll fluorescence imaging photosynthetic efficiency energy partitioning high temperature precipitation change
ISSN号	1664-462X
DOI	10.3389/fpls.2015.01254
文献子类	Article
英文摘要	In this study, the impact of future climate change on photosynthetic efficiency as well as energy partitioning in the Stipa bungeana was investigated by using chlorophyll fluorescence imaging (CFI) technique. Two thermal regimes (room temperature, To: 23.0/17.0 degrees C; High temperature, T-6: 29.0/23.0 degrees C) and three water conditions (Control, W-0; Water deficit, W-30; excess precipitation, W+30) were set up in artificial control chambers. The results showed that excess precipitation had no significant effect on chlorophyll fluorescence parameters, while water deficit decreased the maximal quantum yield of photosystem 11 (PSII) photochemistry for the dark adapted state (F-v/F-m) by 16.7%, with no large change in maximal quantum yield of PSII photochemistry for the light-adapted state (F-V'/F-m') and coefficient of the photochemical quenching (qp) at To condition. Under 16 condition, high temperature offset the negative effect of water deficit on F-v/F-m and enhanced the positive effect of excess precipitation on F-v/F-m, F-v'/F-m', and qp, the values of which all increased. This indicates that the temperature higher by 6 degrees C will be beneficial to the photosynthetic performance of S. bungeana. Spatial changes of photosynthetic performance were monitored in three areas of interest (AOIS) located on the bottom, middle and upper position of leaf. Chlorophyll fluorescence images (F-v/F-m, actual quantum yield of PSII photochemistry for the light-adapted state (Phi(PSII)), quantum yield of non-regulated energy dissipation for the light-adapted state (No) at To condition, and (Phi(PSII) at 16 condition) showed a large spatial variation, with greater value of Phi(NO) and lower values of F-v/F-m and Phi(PSII) in the upper position of leaves. Moreover, there was a closer relationship between Phi(PSII) and Phi(NO), suggesting that the energy dissipation by non-regulated quenching mechanisms played a dominant role in the yield of PSII photochemistry. It was also found that, among all measured fluorescence parameters, the F-v/F-m ratio was most sensitive to precipitation change at To, while Phi(PSII) was the most sensitive indicator at 16.
学科主题	Plant Sciences
出版地	LAUSANNE
WOS关键词	WATER RELATIONS ; PHOTOSYSTEM-II ; ELECTRON-TRANSPORT ; HIGH-TEMPERATURE ; ELEVATED CO2 ; IN-VIVO ; DROUGHT ; STRESS ; PLANTS ; LIGHT
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000368002300001
资助机构	national Basic research Program of ChinaNational Basic Research Program of China [2010CB951301] ; Chinese Academy of Sciences Strategic Priority Research Program Climate Change: Carbon Budget and Relevant Issues [XDA-05050408]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/24562]
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Meteorol Sci, China Meteorol Adm, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Song, Xiliang,Zhou, Guangsheng,Xu, Zhenzhu,et al. Detection of Photosynthetic Performance of Stipa bungeana Seedlings under Climatic Change using Chlorophyll Fluorescence Imaging[J]. FRONTIERS IN PLANT SCIENCE,2016,6.
APA	Song, Xiliang,Zhou, Guangsheng,Xu, Zhenzhu,Lv, Xiaomin,&Wang, Yuhui.(2016).Detection of Photosynthetic Performance of Stipa bungeana Seedlings under Climatic Change using Chlorophyll Fluorescence Imaging.FRONTIERS IN PLANT SCIENCE,6.
MLA	Song, Xiliang,et al."Detection of Photosynthetic Performance of Stipa bungeana Seedlings under Climatic Change using Chlorophyll Fluorescence Imaging".FRONTIERS IN PLANT SCIENCE 6(2016).