The coupling effects of water deficit and nitrogen supply on photosynthesis, WUE, and stable isotope composition in Picea asperata
文献类型：期刊论文
| 作者 | Tang, Bo2,3; Yin, Chunying; Yang, Huan2; Sun, Yuyu2; Liu, Qing |
| 刊名 | ACTA PHYSIOLOGIAE PLANTARUM
 |
| 出版日期 | 2017 |
| 卷号 | 39期号:7 |
| 关键词 | Leaf gas exchange Stable isotope composition Water use efficiency Stomatal conductance |
| ISSN号 | 0137-5881 |
| DOI | 10.12705/666.18 |
| 文献子类 | Article |
| 英文摘要 | Water stress and nitrogen (N) availability are the two main factors limiting plant growth, and the two constrains can interact in intricate ways. Moreover, atmospheric N depositions are altering the availability of these limiting factors in many terrestrial ecosystems. Here, we studied the combined effects of different soil water availability and N supply on photosynthesis and water-use efficiency (WUE) in Picea asperata seedlings cultured in pots, using gas exchange, and stable carbon and nitrogen isotope composition (delta C-13 and delta N-15). Photosynthesis under light saturation (A(sat)) and stomatal conductance (g(s)) of P. asperata decreased as the soil moisture gradually diminished. Under severe water-stress condition, N addition decreased the Asat and gs, whereas the positive effects were observed in moderate water-stress and well-watered conditions. The effect of N addition on the intrinsic WUE (WUEi) deduced from gas exchange was associated with soil water availability, whereas long-term WUE evaluated by leaf delta C-13 only affected by soil water availability, and it would be elevated with soil moisture gradually diminished. Water deficit would restrict the uptake and further transport of N to the aboveground parts of P. asperata, and then increasing delta N-15. Therefore, delta N-15 in plant tissues may reflect changes in N allocation within plants. These results indicate that the effect of N enrichment on photosynthesis in P. asperata is largely, if not entirely, dependent on the severity of water stress, and P. asperata would be more sensitive to increasing N enrichment under low soil water availability than under high soil moisture. |
| 学科主题 | Plant Sciences ; Evolutionary Biology |
| 出版地 | HEIDELBERG |
| 电子版国际标准刊号 | 1861-1664 |
| WOS关键词 | GAS-EXCHANGE ; USE EFFICIENCY ; DURUM-WHEAT ; CLIMATE-CHANGE ; QUERCUS-SUBER ; CARBON ; DISCRIMINATION ; DROUGHT ; DELTA-C-13 ; RESPONSES |
| 语种 | 英语 |
| WOS记录号 | WOS:000418791300018 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31370495, 31070533] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/22323]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Chinese Acad Sci, Chengdu Inst Biol, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliz, Biodivers Conservat Key Lab Sichuan Prov, POB 416, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Bo,Yin, Chunying,Yang, Huan,et al. The coupling effects of water deficit and nitrogen supply on photosynthesis, WUE, and stable isotope composition in Picea asperata[J]. ACTA PHYSIOLOGIAE PLANTARUM,2017,39(7). |
| APA | Tang, Bo,Yin, Chunying,Yang, Huan,Sun, Yuyu,&Liu, Qing.(2017).The coupling effects of water deficit and nitrogen supply on photosynthesis, WUE, and stable isotope composition in Picea asperata.ACTA PHYSIOLOGIAE PLANTARUM,39(7). |
| MLA | Tang, Bo,et al."The coupling effects of water deficit and nitrogen supply on photosynthesis, WUE, and stable isotope composition in Picea asperata".ACTA PHYSIOLOGIAE PLANTARUM 39.7(2017). |
入库方式： OAI收割
来源：植物研究所
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