Physiological responses of Kobresia pygmaea to warming in Qinghai-Tibetan Plateau permafrost region

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Physiological responses of Kobresia pygmaea to warming in Qinghai-Tibetan Plateau permafrost region
	Yang, Y.1,2,3; Wang, G. X.1,2; Yang, L. D.1,2; Guo, J. Y.1,2; Li, N.1,2
刊名	ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY
	2012-02-01
卷号	39 页码:109-116
关键词	Active oxygen species Antioxidant capacities Non-structural carbohydrate Oxidative damage
ISSN号	1146-609X
通讯作者	王根绪
英文摘要	Kobresia pygmaea (C.B. Clarke) C.B. Clarke is one dominant herbaceous species in the alpine meadows of the Qinghai-Tibetan Plateau. From 2006 to 2009, a warming experiment was conducted in this permafrost region. Two 2-year warming treatments with an annual average warming of 2.1 degrees C and 4.4 degrees C, and one 4-year warming treatment with an annual average warming of 2.3 degrees C were established to examine physiological responses of K. pygmaea to warming. Our results indicated that 2-years of warming increased malondialdehyde and non-structural carbohydrates in the plants. There was no effect of 2-year warming on electrolyte leakage and free proline content. In the 2-year warming treatment, superoxide dismutase activity and peroxidase activity increased, ascorbate peroxidase activity and ascorbic acid only increased in 2-year high warming treatment, whereas in the 4-year warming treatment, active oxygen species, electrolyte leakage. UV-absorbing compounds and anthocyanins decreased. The 4-year warming treatment also significantly increased non-structural carbonhydrate and free proline accumulation for osmotic adjustment. The results of this study suggest that K. pygmaea could adapt to a warmer environment in the future. (C) 2012 Elsevier Masson SAS. All rights reserved.
学科主题	生态学
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Ecology
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	UV-B RADIATION ; PHASEOLUS-VULGARIS L. ; GLOBAL CLIMATE-CHANGE ; OPEN-TOP CHAMBERS ; WATER-STRESS ; PROLINE ACCUMULATION ; INTEGRATED APPROACH ; HYDROGEN-PEROXIDE ; POPULUS-CATHAYANA ; ATMOSPHERIC CO2
收录类别	SCI
语种	英语
WOS记录号	WOS:000302832700015
公开日期	2012-12-12
内容类型	期刊论文
源URL	[http://192.168.143.20:8080/handle/131551/4474]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China 3.Peking Univ, Dept Ecol, Coll Urban & Environm Sci, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Yang, Y.,Wang, G. X.,Yang, L. D.,et al. Physiological responses of Kobresia pygmaea to warming in Qinghai-Tibetan Plateau permafrost region[J]. ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY,2012,39:109-116.
APA	Yang, Y.,Wang, G. X.,Yang, L. D.,Guo, J. Y.,&Li, N..(2012).Physiological responses of Kobresia pygmaea to warming in Qinghai-Tibetan Plateau permafrost region.ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY,39,109-116.
MLA	Yang, Y.,et al."Physiological responses of Kobresia pygmaea to warming in Qinghai-Tibetan Plateau permafrost region".ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY 39(2012):109-116.