A new explanation of the N concentration decrease in tissues of rice (Oryza sativa L.) exposed to elevated atmospheric pCO(2)
文献类型：期刊论文
| 作者 | Pang, J; Zhu, JG; Xie, ZB; Liu, G; Zhang, YL; Chen, GP; Zeng, Q; Cheng, L |
| 刊名 | ENVIRONMENTAL AND EXPERIMENTAL BOTANY
 |
| 出版日期 | 2006-08-01 |
| 卷号 | 57期号:1-2页码:98-105 |
| 关键词 | elevated pCO(2) N concentration plant N loss root N uptake efficiency rice FACE |
| ISSN号 | 0098-8472 |
| DOI | 10.1016/j.envexpbot.2005.04.004 |
| 通讯作者 | Zhu, JG() |
| 英文摘要 | In this paper, four hypotheses to explain the N concentration decrease in plants exposed to elevated pCO(2) were tested by growing rice (Oryza sativa L.) in nutrient solution under two atmospheric carbon dioxide (CO2) concentrations (ambient and ambient + 200 mu mol mol(-1)) and two N levels (14 and 28 mg N L-1). Results showed that: (1) 'dilution' of N by enhanced biomass occurred in all tissues but leaves. (2) Elevated pCO(2) favored N allocation to ears over to stems and leaves, however, altered N partition between the shoot and the root was not observed. (3) The decline in transpiration rate should not be the key factor that led to the reduction in plant tissue N concentration under elevated pCO(2) - (4) Significantly increased total plant N uptake under elevated pCO(2) did not led to a significant increase of N yield due to increased plant N loss (defined as the difference between total N uptake and N yield). Elevated pCO(2) also decreased root N uptake efficiency (NRE). Increased plant N loss and decreased NRE at elevated pCO(2) may play major roles in N concentration decrease in tissues of rice. (c) 2005 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | AIR CO2 ENRICHMENT ; NITROGEN CONCENTRATION ; PLANT-TISSUES ; WATER STATUS ; WHEAT ; GROWTH ; BIOMASS ; SOIL ; REQUIREMENTS ; ALLOCATION |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
| WOS类目 | Plant Sciences ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000238089100012 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558597 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Zhu, JG |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Hubei Univ, Rac Resource & Environm, Wuhan 430062, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pang, J,Zhu, JG,Xie, ZB,et al. A new explanation of the N concentration decrease in tissues of rice (Oryza sativa L.) exposed to elevated atmospheric pCO(2)[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2006,57(1-2):98-105. |
| APA | Pang, J.,Zhu, JG.,Xie, ZB.,Liu, G.,Zhang, YL.,...&Cheng, L.(2006).A new explanation of the N concentration decrease in tissues of rice (Oryza sativa L.) exposed to elevated atmospheric pCO(2).ENVIRONMENTAL AND EXPERIMENTAL BOTANY,57(1-2),98-105. |
| MLA | Pang, J,et al."A new explanation of the N concentration decrease in tissues of rice (Oryza sativa L.) exposed to elevated atmospheric pCO(2)".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 57.1-2(2006):98-105. |
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来源：南京土壤研究所
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