| Nitrate supply affects root growth differentially in two rice cultivars differing in nitrogen use efficiency | |
| Song, Wenjing1; Makeen, Kousar1; Wang, Dongsheng1,3; Zhang, Chenming1; Xu, Yehong1; Zhao, Haijuan1; Tu, Erdi1; Zhang, Yali1,2; Shen, Qirong1; Xu, Guohua1 | |
| 刊名 | PLANT AND SOIL
 |
| 2011-06-01 | |
| 卷号 | 343期号:1-2页码:357-368 |
| 关键词 | Auxin Nitrate Rice Root initiation |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-011-0723-0 |
| 通讯作者 | Zhang, Yali(ylzhang@njau.edu.cn) |
| 英文摘要 | Partial nitrate nutrition was testified to improve rice (Oryza sativa L.) growth. However, how partial nitrate nutrition is related to root growth in rice cultivars with different N-use efficiency is still unclear. Two rice cultivars, Nanguang (high N-use efficiency) and Elio (low N-use efficiency), were grown on six ratios of NH (4) (+) /NO (3) (-) in the solution. The response of root growth to partial nitrate nutrition was investigated and N status and auxin concentration were recorded in order to elucidate the mechanisms by which the optimal ratio of NH (4) (+) /NO (3) (-) that controls the architecture of the root system. The length of adventitious and lateral roots was stimulated only in cv. Nanguang by partial nitrate nutrition. Nitrate-stimulated root length in Nanguang resulted mainly from root initiation rather than root elongation. Root biomass was similar between two rice cultivars under NH (4) (+) supplied, while higher root biomass was observed in cv. Nanguang than in cv. Elio under 25% nitrate supplied for 10 weeks. Significant IAA increase was recorded in cv. Nanguang under 25% nitrate presence in the nutrition compared to under sole NH (4) (+) solution. The presence of nitrate increased root initiation in the rice with high N-use efficiency, which led to faster biomass accumulation and higher N-use efficiency at later growth stages. |
| 收录类别 | SCI |
| WOS关键词 | ARABIDOPSIS-THALIANA ; AUXIN TRANSPORT ; AEROBIC SOIL ; ARCHITECTURE ; PATHWAYS ; SYSTEM ; AVAILABILITY ; CYTOKININ ; NUTRITION ; RESPONSES |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS类目 | Agronomy ; Plant Sciences ; Soil Science |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000290688000026 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2559018 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Zhang, Yali |
| 作者单位 | 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 21008, Peoples R China 3.Inst Sci Vegetales, Nanjing 210042, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Wenjing,Makeen, Kousar,Wang, Dongsheng,et al. Nitrate supply affects root growth differentially in two rice cultivars differing in nitrogen use efficiency[J]. PLANT AND SOIL,2011,343(1-2):357-368. |
| APA | Song, Wenjing.,Makeen, Kousar.,Wang, Dongsheng.,Zhang, Chenming.,Xu, Yehong.,...&Xu, Guohua.(2011).Nitrate supply affects root growth differentially in two rice cultivars differing in nitrogen use efficiency.PLANT AND SOIL,343(1-2),357-368. |
| MLA | Song, Wenjing,et al."Nitrate supply affects root growth differentially in two rice cultivars differing in nitrogen use efficiency".PLANT AND SOIL 343.1-2(2011):357-368. |
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