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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erw219
|2 doi
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|a pubmed24n1344.xml
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|a (DE-627)NLM26100624X
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|a (NLM)27255929
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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 Lihavainen, Jenna
|e verfasserin
|4 aut
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| 245 |
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|a Artificially decreased vapour pressure deficit in field conditions modifies foliar metabolite profiles in birch and aspen
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|c 2016
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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 03.11.2017
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|a Date Revised 24.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © The Author 2016. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a Relative air humidity (RH) is expected to increase in northern Europe due to climate change. Increasing RH reduces the difference of water vapour pressure deficit (VPD) between the leaf and the atmosphere, and affects the gas exchange of plants. Little is known about the effects of decreased VPD on plant metabolism, especially under field conditions. This study was conducted to determine the effects of artificially decreased VPD on silver birch (Betula pendula Roth.) and hybrid aspen (Populus tremula L.×P. tremuloides Michx.) foliar metabolite and nutrient profiles in a unique free air humidity manipulation (FAHM) field experiment during the fourth season of humidity manipulation, in 2011. Long-term exposure to decreased VPD modified nutrient homeostasis in tree leaves, as demonstrated by a lower N concentration and N:P ratio in aspen leaves, and higher Na concentration and lower K:Na ratio in the leaves of both species in decreased VPD than in ambient VPD. Decreased VPD caused a shift in foliar metabolite profiles of both species, affecting primary and secondary metabolites. Metabolic adjustment to decreased VPD included elevated levels of starch and heptulose sugars, sorbitol, hemiterpenoid and phenolic glycosides, and α-tocopherol. High levels of carbon reserves, phenolic compounds, and antioxidants under decreased VPD may modify plant resistance to environmental stresses emerging under changing climate
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Betula
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|a GC-MS
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|a Populus
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|a VPD.
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| 650 |
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|a metabolite profiling
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|a mineral nutrients
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| 650 |
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|a relative humidity
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|a Antioxidants
|2 NLM
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|a Glycosides
|2 NLM
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| 650 |
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|a Phenols
|2 NLM
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| 650 |
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|a Sorbitol
|2 NLM
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| 650 |
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|a 506T60A25R
|2 NLM
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| 650 |
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|a Starch
|2 NLM
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| 650 |
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|a 9005-25-8
|2 NLM
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| 650 |
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|a alpha-Tocopherol
|2 NLM
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| 650 |
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7 |
|a H4N855PNZ1
|2 NLM
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| 700 |
1 |
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|a Keinänen, Markku
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Keski-Saari, Sarita
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kontunen-Soppela, Sari
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sõber, Anu
|e verfasserin
|4 aut
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| 700 |
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|a Oksanen, Elina
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 67(2016), 14 vom: 01. Juli, Seite 4367-78
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
1 |
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|g volume:67
|g year:2016
|g number:14
|g day:01
|g month:07
|g pages:4367-78
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| 856 |
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|u http://dx.doi.org/10.1093/jxb/erw219
|3 Volltext
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