Responses of plant biomass, photosynthesis and lipid peroxidation to warming and precipitation change in two dominant species (Stipa grandis and Leymus chinensis) from North China Grasslands

doi:10.1002/ece3.1982

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Responses of plant biomass, photosynthesis and lipid peroxidation to warming and precipitation change in two dominant species (Stipa grandis and Leymus chinensis) from North China Grasslands
	Song, Xiliang; Wang, Yuhui; Lv, Xiaomin
刊名	ECOLOGY AND EVOLUTION
	2016
卷号	6 期号:6 页码:1871-1882
关键词	Biomass climate change Leymus chinensis lipid peroxidation photosynthesis precipitation change Stipa grandis warming
ISSN号	2045-7758
DOI	10.1002/ece3.1982
文献子类	Article
英文摘要	Influential factors of global change affect plant carbon uptake and biomass simultaneously. Although the effects from warming and precipitation change have been extensive studied separately, the responses of plant biomass, photosynthesis, and lipid peroxidation to the interaction of these factors are still not fully understood. In this study, we examined the physiological responses of two dominant plant species from grasslands of northern China with different functional traits to combinations of five simulated warming patterns and five simulated precipitation patterns in environment-controlled chambers. Our results showed that the biomass, net CO2 assimilation rate (P-n), maximal efficiency of photosystem II photochemistry (F-v/F-m), and chlorophyll content (Chl) of Stipa grandis and Leymus chinensis were enhanced by moderate warming and plus precipitation, but they declined drastically with high temperature and drought. High temperature and drought also led to significant malondialdehyde (MDA) accumulation, which had a negative correlation with leaf biomass. The lower level of lipid peroxidation in leaves of S. grandis suggests that this species is better protected from oxidative damage under heat stress, drought stress and their interactive conditions than L. chinensis. Using the subordinate function values method, we found S. grandis to be more sensitive to climate change than L. chinensis and the gross biomass and root biomass of S. grandis and the leaf biomass of L. chinensis were most sensitive to climate change. Furthermore, the P-n of both S. grandis and L. chinensis had a significant linear relationship with F-v/F-m and Chl, indicating that carbon assimilation may be caused by nonstomatal limitations.
学科主题	Ecology ; Evolutionary Biology
出版地	HOBOKEN
WOS关键词	HEAT-STRESS INJURY ; ELEVATED CO2 ; CHLOROPHYLL FLUORESCENCE ; OXIDATIVE STRESS ; PERENNIAL GRASS ; WATER RELATIONS ; ANTIOXIDANT METABOLISM ; LIPOXYGENASE ACTIVITY ; SUPEROXIDE-DISMUTASE ; INNER-MONGOLIA
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	WILEY
WOS记录号	WOS:000372488300025
资助机构	National Basic Research Program of ChinaNational Basic Research Program of China [2010CB951301] ; China Special Fund for Meteorological Research in the Public Interest [GYHY201406034] ; 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/2S10CLM1/25108]
专题	植被与环境变化国家重点实验室
作者单位	Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Song, Xiliang,Wang, Yuhui,Lv, Xiaomin. Responses of plant biomass, photosynthesis and lipid peroxidation to warming and precipitation change in two dominant species (Stipa grandis and Leymus chinensis) from North China Grasslands[J]. ECOLOGY AND EVOLUTION,2016,6(6):1871-1882.
APA	Song, Xiliang,Wang, Yuhui,&Lv, Xiaomin.(2016).Responses of plant biomass, photosynthesis and lipid peroxidation to warming and precipitation change in two dominant species (Stipa grandis and Leymus chinensis) from North China Grasslands.ECOLOGY AND EVOLUTION,6(6),1871-1882.
MLA	Song, Xiliang,et al."Responses of plant biomass, photosynthesis and lipid peroxidation to warming and precipitation change in two dominant species (Stipa grandis and Leymus chinensis) from North China Grasslands".ECOLOGY AND EVOLUTION 6.6(2016):1871-1882.