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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2021.04.023
|2 doi
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|a pubmed25n1084.xml
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|a (DE-627)NLM325431698
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|a (NLM)33991861
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|a (PII)S0981-9428(21)00222-9
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Zhang, Yanyang
|e verfasserin
|4 aut
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|a The N uptake-associated physiological processes at late growth stage in wheat (Triticum aestivum) under N deprivation combined with deficit irrigation condition
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|c 2021
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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 01.06.2021
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|a Date Revised 01.06.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2021 Elsevier Masson SAS. All rights reserved.
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|a Elucidating physiological mechanisms underlying the plant N uptake benefits breeding of high N use efficiency (NUE) crop cultivars. In this study, we investigated the growth and N uptake-associated processes in wheat under N deprivation and deficit irrigation, using two contrasting NUE cultivars. Compared with sufficient-N (SN), deficient-N (DN) treatment reduced plant biomass, N accumulation, and yields in two cultivars (high NUE Shinong 086 and N deprivation-sensitive Jimai 585), suggesting that N deprivation negatively regulates plant growth and N uptake. Shinong 086 was better on growth and N uptake-associated traits than Jimai 585 due to the improved root biomass across soil profile, which was consistent with the decrease of available N contents in soil layers. These results suggested that the improved root system architecture (RAS) enhances plant acquirement for soil N under N- and water-deprivation condition, contributing to the plant N uptake and yield formation capacities. Transcriptome investigation revealed that numerous genes were differentially expressed (DE) in the N-deprived Shinong 086 plants, which involve the regulation of complicate biochemical pathways. These results suggested that the modified RAS and N uptake in high NUE plants are accomplished underlying the regulation of numerous DE genes. TaWRKY20, a gene in ZFP transcription factor family, was functionally characterized for the role in mediating plant N uptake. Overexpression of it conferred plants improved growth and N uptake under DN due to its regulation on TaNRT2.1 and TaNRT2.2, two nitrate transporter genes. Our investigation provides insights in high NUE mechanisms in wheat under N deprivation
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|a Journal Article
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|a Differentially expressed gene
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|a Growth feature
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|a N deprivation
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|a N uptake
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|a Wheat (Triticum astivum L.)
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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 Zhao, Yingjia
|e verfasserin
|4 aut
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|a Sun, Liyong
|e verfasserin
|4 aut
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| 700 |
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|a Han, Peng
|e verfasserin
|4 aut
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| 700 |
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|a Bai, Xinyang
|e verfasserin
|4 aut
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| 700 |
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|a Lin, Ruize
|e verfasserin
|4 aut
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| 700 |
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|a Xiao, Kai
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 164(2021) vom: 15. Juli, Seite 160-172
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnas
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| 773 |
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|g volume:164
|g year:2021
|g day:15
|g month:07
|g pages:160-172
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|u http://dx.doi.org/10.1016/j.plaphy.2021.04.023
|3 Volltext
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