Nutrient supply has greater influence than sink strength on photosynthetic adaptation to CO2 elevation in white birch seedlings
文献类型：期刊论文
| 作者 | Zhang, Shouren1; Dang, Qing-Lai; Cao, Bing2 |
| 刊名 | PLANT SCIENCE
 |
| 出版日期 | 2013 |
| 卷号 | 203页码:55-62 |
| 关键词 | Photosynthetic up-regulation Foliar gas exchange In vivo carboxylation Chlorophyll fluorescence |
| ISSN号 | 0168-9452 |
| DOI | 10.1016/j.plantsci.2012.12.010 |
| 文献子类 | Article |
| 英文摘要 | To study the effects of source sink ratio and nutrient supply on photosynthetic acclimation to CO2 elevation, we subjected white birch seedlings to two levels of nutrient supply (high vs. low) and CO2 concentrations (ambient vs. doubled [CO2]) for two months and then shaded the lower canopy on half of the seedlings to reduce source/sink ratio for an additional month. The CO2 elevation significantly increased P-n and IWUE at both nutrient levels but the increase was greater in the high than low nutrient treatment. The CO2 elevation resulted in a down-regulation of V-cmax in the low nutrient treatment but up-regulation of J(max), TPU, (F'(m) - F)/F'(m) and J(c) in the high nutrient after 3 months of treatment. Both the CO2 elevation and high nutrient supply increased the partition of total electron transport to carboxylation at the expense of oxidation. The seedlings responded to the shading of the lower canopy by reducing biomass allocation to roots rather than making physiological adjustments to unshaded leaves in the upper canopy. Our results suggest that the direction of photosynthetic acclimation to CO2 elevation in white birch was nutrient-dependent and an increase in sink strength could reduce the feedback inhibition of photosynthesis. (c) 2012 Elsevier Ireland Ltd. All rights reserved. |
| 学科主题 | Biochemistry & Molecular Biology ; Plant Sciences |
| 出版地 | CLARE |
| 电子版国际标准刊号 | 1873-2259 |
| WOS关键词 | CARBON-DIOXIDE ; NITROGEN NUTRITION ; GROWTH EFFICIENCY ; FAGUS-SYLVATICA ; DOWN-REGULATION ; LEAF NITROGEN ; GAS-EXCHANGE ; PINUS-TAEDA ; ENRICHMENT ; ACCLIMATION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000315831400007 |
| 出版者 | ELSEVIER IRELAND LTD |
| 资助机构 | NSERC(Natural Sciences and Engineering Research Council of Canada (NSERC)) ; Canada Foundation for Innovation(Canada Foundation for InnovationCGIAR) ; Ontario Innovation Trust |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27970]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Lakehead Univ, Fac Nat Resources Management, Thunder Bay, ON P7B 5E1, Canada 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Ningxia Univ, Sch Agr, Dept Hort & Forestry, Yinchuan 750021, Ningxia, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Shouren,Dang, Qing-Lai,Cao, Bing. Nutrient supply has greater influence than sink strength on photosynthetic adaptation to CO2 elevation in white birch seedlings[J]. PLANT SCIENCE,2013,203:55-62. |
| APA | Zhang, Shouren,Dang, Qing-Lai,&Cao, Bing.(2013).Nutrient supply has greater influence than sink strength on photosynthetic adaptation to CO2 elevation in white birch seedlings.PLANT SCIENCE,203,55-62. |
| MLA | Zhang, Shouren,et al."Nutrient supply has greater influence than sink strength on photosynthetic adaptation to CO2 elevation in white birch seedlings".PLANT SCIENCE 203(2013):55-62. |
入库方式： OAI收割
来源：植物研究所
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