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A self-photoprotection mechanism helps Stipa baicalensis adapt to future climate change

文献类型：期刊论文

作者Song, Xiliang1; Zhou, Guangsheng2; Xu, Zhenzhu; Lv, Xiaomin1; Wang, Yuhui
刊名SCIENTIFIC REPORTS
出版日期2016
卷号6
ISSN号2045-2322
DOI10.1038/srep25839
文献子类Article
英文摘要We examined the photosynthetic responses of Stipa baicalensis to relative long-term exposure (42 days) to the predicted elevated temperature and water availability changes to determine the mechanisms through which the plant would acclimate to future climate change. Two thermal regimes (ambient and + 4 degrees C) and three irrigation levels (partial, normal and excess) were used in environmental control chambers. The gas exchange parameters, light response curves and A/Ci curves were determined. The elevated temperature and partial irrigation reduced the net photosynthetic rate due to a limitation in the photosynthetic capacity instead of the intercellular CO2 concentration. Partial irrigation decreased Rubisco activation and limited RuBP regeneration. The reduction in V-cmax increased with increasing temperature. Excess irrigation offset the negative effect of drought and led to a partial recovery of the photosynthetic capacity. Although its light use efficiency was restricted, the use of light and dark respiration by Stipa baicalensis was unchanged. We concluded that nonstomatal limitation was the primary reason for photosynthesis regulation in Stipa baicalensis under relative long-term climate change conditions. Although climate change caused reductions in the light use efficiency and photosynthetic rate, a self-photoprotection mechanism in Stipa baicalensis resulted in its high ability to maintain normal live activities.
学科主题Multidisciplinary Sciences
出版地BERLIN
WOS关键词PHOTOSYNTHETIC LIGHT-RESPONSE ; ELEVATED ATMOSPHERIC CO2 ; TEMPERATURE RESPONSE ; WATER-STRESS ; STOMATAL CONDUCTANCE ; HEAT-STRESS ; TRANSGENIC TOBACCO ; LEAF RESPIRATION ; RUBISCO ACTIVASE ; REDUCED AMOUNTS
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000375536100001
出版者NATURE PORTFOLIO
资助机构China Special Fund for Meteorological Research in the Public Interest [GYHY201506001-3] ; Chinese Academy of Sciences 'Strategic Priority Research Program-Climate Change: Carbon Budget and Relevant Issues' [XDA 05050408]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/25105]  
专题植被与环境变化国家重点实验室
作者单位1.China Meteorol Adm, Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China
3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Song, Xiliang,Zhou, Guangsheng,Xu, Zhenzhu,et al. A self-photoprotection mechanism helps Stipa baicalensis adapt to future climate change[J]. SCIENTIFIC REPORTS,2016,6.
APA Song, Xiliang,Zhou, Guangsheng,Xu, Zhenzhu,Lv, Xiaomin,&Wang, Yuhui.(2016).A self-photoprotection mechanism helps Stipa baicalensis adapt to future climate change.SCIENTIFIC REPORTS,6.
MLA Song, Xiliang,et al."A self-photoprotection mechanism helps Stipa baicalensis adapt to future climate change".SCIENTIFIC REPORTS 6(2016).

入库方式： OAI收割

来源：植物研究所

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