Photosynthetic acclimation and leaf traits of Stipa bungeana in response to elevated CO2 under five different watering conditions
文献类型：期刊论文
| 作者 | Wang, H.; Zhou, G. S.; Jiang, Y. L.; Shi, Y. H.; Xu, Z. Z. |
| 刊名 | PHOTOSYNTHETICA
 |
| 出版日期 | 2017 |
| 卷号 | 55期号:1页码:164-175 |
| ISSN号 | 0300-3604 |
| 关键词 | climate change carbon balance gas exchange respiration chlorophyll fluorescence |
| DOI | 10.1093/pcp/pcx081 |
| 文献子类 | Article |
| 英文摘要 | Although plant performance under elevated CO2 (EC) and drought has been extensively studied, little is known about the leaf traits and photosynthetic performance of Stipa bungeana under EC and a water deficiency gradient. In order to investigate the effects of EC, watering, and their combination, S. bungeana seedlings were exposed to two CO2 regimes (ambient, CA: 390 ppm; elevated, EC: 550 ppm) and five levels of watering (-30%, -15%, control, +15%, +30%) from 1 June to 31 August in 2011, where the control water level was 240 mm. Gas exchange and leaf traits were measured after 90-d treatments. Gas-exchange characteristics, measured at the growth CA, indicated that EC significantly decreased the net photosynthetic rate (P (N)), water-use efficiency, nitrogen concentration based on mass, chlorophyll and malondialdehyde (MDA) content, while increased stomatal conductance (g (s)), intercellular CO2 concentration (C (i)), dark respiration, photorespiration, carbon concentration based on mass, C/N ratio, and leaf water potential. Compared to the effect of EC, watering showed an opposite trend only in case of P (N). The combination of both factors showed little influence on these physiological indicators, except for g (s), C (i), and MDA content. Photosynthetic acclimation to EC was attributed to the N limitation, C sink/source imbalance, and the decline of photosynthetic activity. The watering regulated photosynthesis through both stomatal and nonstomatal mechanisms. Our study also revealed that the effects of EC on photosynthesis were larger than those on respiration and did not compensate for the adverse effects of drought, suggesting that a future warm and dry climate might be unfavorable to S. bungeana. However, the depression of the growth of S. bungeana caused by EC was time-dependent at a smaller temporal scale. |
| 学科主题 | Plant Sciences ; Cell Biology |
| 电子版国际标准刊号 | 1573-9058 |
| 出版地 | 6 PRAGUE |
| WOS关键词 | ATMOSPHERIC CARBON-DIOXIDE ; CLIMATE-CHANGE ; USE EFFICIENCY ; GAS-EXCHANGE ; STOMATAL CONDUCTANCE ; CHLOROPHYLL FLUORESCENCE ; PRECIPITATION CHANGE ; ANTIOXIDANT SYSTEMS ; DROUGHT STRESS ; LOESS PLATEAU |
| 语种 | 英语 |
| 出版者 | ACAD SCIENCES CZECH REPUBLIC, INST EXPERIMENTAL BOTANY |
| WOS记录号 | WOS:000410155800011 |
| 资助机构 | State Key Development Program of Basic Research [2010CB951300] ; Strategic Priority Research Program-Climate Change: Carbon Budget and Related Issues of the Chinese Academy of SciencesChinese Academy of Sciences [XDA05050408] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/22046]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Shi, Y. H.] Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China 2.Jiang, Y. L. 3.[Wang, H. 4.Xu, Z. Z.] Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 5.[Wang, H.] Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.[Zhou, G. S. |
| 推荐引用方式 GB/T 7714 | Wang, H.,Zhou, G. S.,Jiang, Y. L.,et al. Photosynthetic acclimation and leaf traits of Stipa bungeana in response to elevated CO2 under five different watering conditions[J]. PHOTOSYNTHETICA,2017,55(1):164-175. |
| APA | Wang, H.,Zhou, G. S.,Jiang, Y. L.,Shi, Y. H.,&Xu, Z. Z..(2017).Photosynthetic acclimation and leaf traits of Stipa bungeana in response to elevated CO2 under five different watering conditions.PHOTOSYNTHETICA,55(1),164-175. |
| MLA | Wang, H.,et al."Photosynthetic acclimation and leaf traits of Stipa bungeana in response to elevated CO2 under five different watering conditions".PHOTOSYNTHETICA 55.1(2017):164-175. |
入库方式： OAI收割
来源：植物研究所
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。