Interactive effects of mechanical stress, sand burial and defoliation on growth and mechanical properties in Cynanchum komarovii
文献类型：期刊论文
| 作者 | Xu, L.; Yu, F. -H.; Werger, M.; Dong, M.; Anten, N. P. R. |
| 刊名 | PLANT BIOLOGY
 |
| 出版日期 | 2013 |
| 卷号 | 15期号:1页码:126-134 |
| 关键词 | Brushing drylands grazing relative growth rate thigmomorphogenesis |
| ISSN号 | 1435-8603 |
| DOI | 10.1111/j.1438-8677.2012.00629.x |
| 文献子类 | Article |
| 英文摘要 | In drylands, wind, sand burial and grazing are three important factors affecting growth and mechanical properties of plants, but their interactive effects have not yet been investigated. Plants of the semi-shrub Cynanchum komarovii, common in semi-arid parts of NE Asia, were subjected to brushing, burial and defoliation. We measured biomass allocation and relative increment rates of dry mass (RGR(m)), height (RGR(h)) and basal diameter (RGR(d)). We also measured the stem mechanical properties, Youngs modulus (E), second moment of area (I), flexural stiffness (EI) and breaking stress (sigma(b)), and scaled these traits to the whole-plant level to determine the maximum lateral force (F-lateral) and the buckling safety factor (BSF). Brushing increased RGR(m); neither burial nor defoliation independently affected RGR(m), but together they reduced it. Among buried plants, brushing positively affected stem rigidity and strength through increasing RGR(d), E, I and EI, and at whole plant level this resulted in a larger BSF and F-lateral. However, among unburied plants this pattern was not observed. Our results thus show that effects of mechanical stress and grazing on plants can be strongly modified by burial, and these interactions should be taken into account when considering adaptive significance of plant mechanical traits in drylands. |
| 学科主题 | Plant Sciences |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1438-8677 |
| WOS关键词 | BIOMASS ALLOCATION ; RESOURCE-ALLOCATION ; PLANT-RESPONSE ; LATERAL SHADE ; GAS-EXCHANGE ; WIND SPEEDS ; STEM ; THIGMOMORPHOGENESIS ; STIMULATION ; TOLERANCE |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000311848100016 |
| 出版者 | WILEY |
| 资助机构 | CAS(Chinese Academy of Sciences) ; Royal Netherlands Academy of Arts and Sciences (KNAW) ; National Natural Science Foundation of China (NSFC)(National Natural Science Foundation of China (NSFC)) |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/28157]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.[Xu, L.] Chinese Acad Sci, Grad Univ, Beijing, Peoples R China 2.Werger, M. 3.[Yu, F. -H.] Beijing Forestry Univ, Coll Nat Conservat, Beijing 100083, Peoples R China 4.Anten, N. P. R.] Univ Utrecht, Inst Environm Biol, Utrecht, Netherlands 5.[Xu, L. 6.Dong, M.] Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, L.,Yu, F. -H.,Werger, M.,et al. Interactive effects of mechanical stress, sand burial and defoliation on growth and mechanical properties in Cynanchum komarovii[J]. PLANT BIOLOGY,2013,15(1):126-134. |
| APA | Xu, L.,Yu, F. -H.,Werger, M.,Dong, M.,&Anten, N. P. R..(2013).Interactive effects of mechanical stress, sand burial and defoliation on growth and mechanical properties in Cynanchum komarovii.PLANT BIOLOGY,15(1),126-134. |
| MLA | Xu, L.,et al."Interactive effects of mechanical stress, sand burial and defoliation on growth and mechanical properties in Cynanchum komarovii".PLANT BIOLOGY 15.1(2013):126-134. |
入库方式： OAI收割
来源：植物研究所
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