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241227s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2024.154411
|2 doi
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|a pubmed24n1643.xml
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|a (PII)S0176-1617(24)00242-6
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|a DE-627
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|a eng
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|a Zhang, Wen
|e verfasserin
|4 aut
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|a Partial replacement by ammonium nutrition enhances Brassica napus growth by promoting root development, photosynthesis, and nitrogen metabolism
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 25.12.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Copyright © 2024 Elsevier GmbH. All rights reserved.
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|a Nitrogen (N) is crucial for plant growth, available primarily as nitrate (NO3-) and ammonium (NH4+). However, its presence in soil is often limited, necessitating strategies to augment N availability. This study delves into the enigmatic interplay between NO3- and NH4+ in fostering the growth of Brassica napus, an important oil crop worldwide. Here, we examined the growth responses of 49 B. napus varieties to five NH4+:NO3- ratios (12:0, 9:3, 3:9, 1:11, 0:12). In general, the biomass of 49 rapeseed varieties increased with the decrease of NH4+ to NO3- ratios in the growth environment. However, different varieties may respond diversely to the mixed N sources, or sole NO3- or NH4+ condition. For some cultivars, the mixed N supply significantly enhanced the plant growth compared with the sole NO3- conditions. Thus, we further investigate the morphological, physiological and molecular response of rapeseed to the mixed N source condition using sole NO3- as a control. The results show that partial replacement by ammonium nutrition in the environment can promote rapeseed root development, net photosynthetic rate and NO3- reduction compared to NO3--only conditions. Using transcriptome analysis, we found a total of 399 and 465 genes which were differentially expressed in root and shoot under A1N11 compared to A0N12 treatments, respectively. Genes involved in photosynthesis, N uptake and assimilation were upregulated by mixed N supplies. These findings highlight that the mixed N supply primarily stimulates B. napus growth by enhancing root development, photosynthesis and N metabolism in the shoot. Such insights are crucial for optimizing N form selection in B. napus to enhance plant performance and N use efficiency
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|a Journal Article
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|a Ammonium
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| 650 |
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|a Brassica napus
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|a Nitrate
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| 650 |
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|a Nitrogen metabolism
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| 650 |
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|a Photosynthesis
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| 700 |
1 |
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|a Munyaneza, Venuste
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Dandan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Chenfeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Siyuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Han, Mingcun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Xu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kant, Surya
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ding, Guangda
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 304(2024) vom: 16. Dez., Seite 154411
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:304
|g year:2024
|g day:16
|g month:12
|g pages:154411
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|u http://dx.doi.org/10.1016/j.jplph.2024.154411
|3 Volltext
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