UV radiation is the primary factor driving the variation in leaf phenolics across Chinese grasslands
文献类型：期刊论文
| 作者 | Chen, Litong1; Niu, Kechang2,3; Wu, Yi2,3; Geng, Yan2,3; Mi, Zhaorong1; Flynn, Dan F. B.1,4; He, Jin-Sheng1,2,3 |
| 刊名 | ecology and evolution
 |
| 出版日期 | 2013-11-01 |
| 卷号 | 3期号:14页码:4696-4710 |
| 关键词 | Inner Mongolia leaf functional traits leaf phenolics Tibetan Plateau ultraviolet absorbing compounds UV radiation |
| ISSN号 | 2045-7758 |
| 通讯作者 | he, js (reprint author), chinese acad sci, northwest inst plateau biol, key lab adaptat & evolut plateau biota, 23 xinning rd, xining 810008, peoples r china. |
| 中文摘要 | due to the role leaf phenolics in defending against ultraviolet b (uvb) under previously controlled conditions, we hypothesize that ultraviolet radiation (uvr) could be a primary factor driving the variation in leaf phenolics in plants over a large geographic scale. we measured leaf total phenolics, ultraviolet-absorbing compounds (uvac), and corresponding leaf n, p, and specific leaf area (sla) in 151 common species. these species were from 84 sites across the tibetan plateau and inner mongolian grasslands of china with contrasting uvr (354 vs. 161mw/cm(2) on average). overall, leaf phenolics and uvac were all significantly higher on the tibetan plateau than in the inner mongolian grasslands, independent of phylogenetic relationships between species. regression analyses showed that the variation in leaf phenolics was strongly affected by climatic factors, particularly uvr, and soil attributes across all sites. structural equation modeling (sem) identified the primary role of uvr in determining leaf phenolic concentrations, after accounting for colinearities with altitude, climatic, and edaphic factors. in addition, phenolics correlated positively with uvac and sla, and negatively with leaf n and n: p. these relationships were steeper in the lower-elevation inner mongolian than on the tibetan plateau grasslands. our data support that the variation in leaf phenolics is controlled mainly by uv radiation, implying high leaf phenolics facilitates the adaptation of plants to strong irradiation via its uv-screening and/or antioxidation functions, particularly on the tibetan plateau. importantly, our results also suggest that leaf phenolics may influence on vegetation attributes and indirectly affect ecosystem processes by covarying with leaf functional traits. |
| 英文摘要 | due to the role leaf phenolics in defending against ultraviolet b (uvb) under previously controlled conditions, we hypothesize that ultraviolet radiation (uvr) could be a primary factor driving the variation in leaf phenolics in plants over a large geographic scale. we measured leaf total phenolics, ultraviolet-absorbing compounds (uvac), and corresponding leaf n, p, and specific leaf area (sla) in 151 common species. these species were from 84 sites across the tibetan plateau and inner mongolian grasslands of china with contrasting uvr (354 vs. 161mw/cm(2) on average). overall, leaf phenolics and uvac were all significantly higher on the tibetan plateau than in the inner mongolian grasslands, independent of phylogenetic relationships between species. regression analyses showed that the variation in leaf phenolics was strongly affected by climatic factors, particularly uvr, and soil attributes across all sites. structural equation modeling (sem) identified the primary role of uvr in determining leaf phenolic concentrations, after accounting for colinearities with altitude, climatic, and edaphic factors. in addition, phenolics correlated positively with uvac and sla, and negatively with leaf n and n: p. these relationships were steeper in the lower-elevation inner mongolian than on the tibetan plateau grasslands. our data support that the variation in leaf phenolics is controlled mainly by uv radiation, implying high leaf phenolics facilitates the adaptation of plants to strong irradiation via its uv-screening and/or antioxidation functions, particularly on the tibetan plateau. importantly, our results also suggest that leaf phenolics may influence on vegetation attributes and indirectly affect ecosystem processes by covarying with leaf functional traits. |
| 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] | ultraviolet-b radiation ; absorbing compounds ; screening compounds ; ozone depletion ; plant phenolics ; vulgare leaves ; enhanced uvb ; stoichiometry ; flavonoids ; defense |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000327304000008 |
| 公开日期 | 2014-05-09 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/3906]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China 2.Peking Univ, Coll Urban & Environm Sci, Dept Ecol, Beijing 100871, Peoples R China 3.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China 4.Univ Zurich, Inst Evolutionary Biol & Environm Studies, CH-8057 Zurich, Switzerland |
| 推荐引用方式 GB/T 7714 | Chen, Litong,Niu, Kechang,Wu, Yi,et al. UV radiation is the primary factor driving the variation in leaf phenolics across Chinese grasslands[J]. ecology and evolution,2013,3(14):4696-4710. |
| APA | Chen, Litong.,Niu, Kechang.,Wu, Yi.,Geng, Yan.,Mi, Zhaorong.,...&He, Jin-Sheng.(2013).UV radiation is the primary factor driving the variation in leaf phenolics across Chinese grasslands.ecology and evolution,3(14),4696-4710. |
| MLA | Chen, Litong,et al."UV radiation is the primary factor driving the variation in leaf phenolics across Chinese grasslands".ecology and evolution 3.14(2013):4696-4710. |
入库方式： OAI收割
来源：西北高原生物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。