Different growth and physiological responses to experimental warming of two dominant plant species Elymus nutans and Potentilla anserina in an alpine meadow of the eastern Tibetan Plateau

	Different growth and physiological responses to experimental warming of two dominant plant species Elymus nutans and Potentilla anserina in an alpine meadow of the eastern Tibetan Plateau
	Shi, F. S. ; Wu, Y. ; Wu, N. ; Luo, P.
刊名	PHOTOSYNTHETICA
	2010
卷号	48 期号:3 页码:437-445
关键词	Elymus nutans experimental warming growth physiology Potentilla anserina
ISSN号	0300-3604
通讯作者	Wu, N, Chinese Acad Sci, Chengdu Inst Biol, ECORES Lab, POB 416, Chengdu 610041, Peoples R China
中文摘要	The effects of experimental warming on the growth and physiology of grass Elymus nutans and forb Potentilla anserina were studied by using open-top chambers (OTCs) in an alpine meadow of the eastern Tibetan Plateau. The warming treatment increased mean air and soil surface temperatures by 1.53A degrees C and 0.50A degrees C, respectively, but it reduced soil relative water content in the surface layer. Experimental warming enhanced the growth and gas exchange of E. nutans, while it reduced those of P. anserina. Experimental warming resulted in an increased efficiency of photosystem II (PSII) in E. nutans, while decreasing it in P. anserina; significantly stimulated non-photochemical quenching, antioxidative enzymes and non-enzymes in both species; and significantly reduced malondialdehyde content in E. nutans, while promoting it in P. anserina. The results of this study indicated that the two species showed different growth responses to experimental warming and their different physiological performances further indicated that experimental warming alleviated the negative effect of low temperature on the growth and development of E. nutans, but limited the competitive ability of P. anserina in the study region.
学科主题	Plant Sciences
收录类别	SCI
资助信息	National Natural Science Foundation of China [40971178, 30870396]; National "11^th Five-year Plan" Science & Technology Program of China
语种	英语
公开日期	2011-07-08
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/22504]
专题	成都生物研究所_生态研究
推荐引用方式 GB/T 7714	Shi, F. S.,Wu, Y.,Wu, N.,et al. Different growth and physiological responses to experimental warming of two dominant plant species Elymus nutans and Potentilla anserina in an alpine meadow of the eastern Tibetan Plateau[J]. PHOTOSYNTHETICA,2010,48(3):437-445.
APA	Shi, F. S.,Wu, Y.,Wu, N.,&Luo, P..(2010).Different growth and physiological responses to experimental warming of two dominant plant species Elymus nutans and Potentilla anserina in an alpine meadow of the eastern Tibetan Plateau.PHOTOSYNTHETICA,48(3),437-445.
MLA	Shi, F. S.,et al."Different growth and physiological responses to experimental warming of two dominant plant species Elymus nutans and Potentilla anserina in an alpine meadow of the eastern Tibetan Plateau".PHOTOSYNTHETICA 48.3(2010):437-445.