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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2017.04.009
|2 doi
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|a pubmed25n0907.xml
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|a (DE-627)NLM272354503
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|a (NLM)28554469
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|a (PII)S0168-9452(17)30115-2
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Vicente, Rubén
|e verfasserin
|4 aut
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| 245 |
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|a Improved responses to elevated CO2 in durum wheat at a low nitrate supply associated with the upregulation of photosynthetic genes and the activation of nitrate assimilation
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 29.12.2017
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2017 Elsevier B.V. All rights reserved.
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|a Elevated CO2 often leads to photosynthetic acclimation, and N availability may alter this response. We investigated whether the coordination of shoot-root N assimilation by elevated CO2 may help to optimize the whole-plant N allocation and maximize photosynthesis in hydroponically-grown durum wheat at two NO3- supplies in interaction with plant development. Transcriptional and biochemical analyses were performed on flag leaves and roots. At anthesis, the improved photosynthetic acclimation response to elevated CO2 at low N was associated with increased Rubisco, chlorophyll and amino acid contents, and upregulation of genes related to their biosynthesis, light reactions and Calvin-Benson cycle, while a decrease was recorded at high N. Despite the decrease in carbohydrates with elevated CO2 at low N and the increase at high N, a stronger upward trend in leaf NR activity was found at low rather than high N. The induction of N recycling-related genes was accompanied by an amino acids decline at high N. At the grain-filling stage, the photosynthetic acclimation to elevated CO2 at high N was associated with the downregulation of both N assimilation, mainly in roots, and photosynthetic genes. At low N, enhanced root N assimilation partly compensated for slower shoot N assimilation and maximized photosynthetic capacity
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|a Journal Article
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|a Elevated CO(2)
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|a Gene expression
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|a Nitrate
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|a Nitrate reductase activity
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|a Photosynthetic acclimation
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|a Triticum durum
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|a Nitrates
|2 NLM
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|a Plant Proteins
|2 NLM
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|a Carbon Dioxide
|2 NLM
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|a 142M471B3J
|2 NLM
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| 650 |
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|a Nitrate Reductase
|2 NLM
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| 650 |
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|a EC 1.7.99.4
|2 NLM
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| 650 |
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|a Ribulose-Bisphosphate Carboxylase
|2 NLM
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| 650 |
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|a EC 4.1.1.39
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 700 |
1 |
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|a Pérez, Pilar
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Martínez-Carrasco, Rafael
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Morcuende, Rosa
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 260(2017) vom: 15. Juli, Seite 119-128
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnns
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| 773 |
1 |
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|g volume:260
|g year:2017
|g day:15
|g month:07
|g pages:119-128
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| 856 |
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|u http://dx.doi.org/10.1016/j.plantsci.2017.04.009
|3 Volltext
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