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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erab317
|2 doi
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|a pubmed24n1092.xml
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|a (DE-627)NLM327744480
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|a (NLM)34228101
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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 Wang, Miaomiao
|e verfasserin
|4 aut
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|a Uptake of nitrogen forms by diploid and triploid white poplar depends on seasonal carbon use strategy and elevated summer ozone
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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 24.11.2021
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|a Date Revised 24.11.2021
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|a published: Print
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|a Dryad: 10.5061/dryad.qfttdz0gd
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|a Citation Status MEDLINE
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|a © The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a The ability of plants to acquire soil nitrogen (N) sources is plastic in response to abiotic and biotic factors. However, information about how plant preferences among N forms changes in response to internal plant N demand through growth phases, or to environmental stress such as ozone (O3), is scarce. Diploid and triploid Chinese white poplar were used to investigate N form preferences at two key developmental periods (spring, summer) and in response to summer O3 (ambient, 60 ppb above ambient). We used stable isotopes to quantify NH4+, NO3- and glycine N-uptake rates. Carbon acquisition was recorded simultaneously. Both ploidy levels differed in growth, N form preferences, and N and C use strategies. Diploid white poplars grew faster in spring but slower in summer compared with triploids. Diploid white poplars also showed plasticity among N form preferences through the season, with no preferences in spring, and NO3- preferred in summer, while triploids showed an overall preference for NO3-. Carbon acquisition and NO3- uptake were inhibited in both ploidy levels of poplar at elevated O3, which also reduced diploid total N uptake. However, triploid white poplars alleviated N uptake reduction, switching to similar preferences among N forms. We conclude that N form preferences by white poplar are driven by internal C and N use in response to nutrient demands, and external factors such as O3
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Amino acids
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|a N preferences
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|a ammonium
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|a nitrate
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|a photosynthesis
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|a relative growth rate
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|a Ozone
|2 NLM
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|a 66H7ZZK23N
|2 NLM
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|a Carbon
|2 NLM
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|a 7440-44-0
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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|a N762921K75
|2 NLM
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| 700 |
1 |
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|a Li, Guolei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Feng, Zhaozhong
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Yong
|e verfasserin
|4 aut
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| 700 |
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|a Xu, Yansen
|e verfasserin
|4 aut
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| 700 |
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|a Uscola, Mercedes
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 72(2021), 20 vom: 26. Okt., Seite 7180-7190
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:72
|g year:2021
|g number:20
|g day:26
|g month:10
|g pages:7180-7190
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|u http://dx.doi.org/10.1093/jxb/erab317
|3 Volltext
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