Physiological responses of Kobresia pygmaea to warming in Qinghai-Tibetan Plateau permafrost region
文献类型：期刊论文
| 作者 | Yang, Y.1,2,3 ; Wang, G. X.1,2; Yang, L. D.1,2; Guo, J. Y.1,2; Li, N.1,2
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| 刊名 | ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY
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| 出版日期 | 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. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | 生态学 |
| 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 |
| 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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