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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2020.02.011
|2 doi
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|a pubmed24n1022.xml
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|a (DE-627)NLM306727110
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|a (NLM)32078898
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|a (PII)S0981-9428(20)30065-6
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|a DE-627
|b ger
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|e rakwb
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|a eng
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|a Fernández de Simón, Brígida
|e verfasserin
|4 aut
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|a Rising [CO2] effect on leaf drought-induced metabolome in Pinus pinaster Aiton
|b Ontogenetic- and genotypic-specific response exhibit different metabolic strategies
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|c 2020
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|a Text
|b txt
|2 rdacontent
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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 Completed 17.07.2020
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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 © 2020 Elsevier Masson SAS. All rights reserved.
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|a Rising atmospheric CO2 concentrations ([CO2]) together with water deficit can influence ecological interactions of trees through an array of chemically driven changes in plant leaves. In four drought stressed Pinus pinaster genotypes, grown under two levels of atmospheric [CO2] (ambient (aCO2) and enriched (eCO2)) the metabolome of adult and juvenile needles was analyzed to know if the metabolic responses to this environmental situation could be genotype-dependent and vary according to the stage of needle ontogeny. Drought had the highest incidence, followed by needle ontogeny, being lower the eCO2 effect. The eCO2 reduced, eliminated or countered the 50 (adult needles) - 44% (juvenile) of the drought-induced changes, suggesting that CO2-enriched plants could perceived less oxidative stress under drought, and proving that together, these two abiotic factors triggered a metabolic response different from that under single factors. Genotype drought tolerance and ontogenetic stage determined the level of metabolite accumulation and the plasticity to eCO2 under drought, which was mainly reflected in antioxidant levels and tree chemical defense. At re-watering, previously water stressed plants showed both, reduced C and N metabolism, and a "drought memory effect", favoring antioxidants and osmolyte storage. This effect showed variations regarding genotype drought-tolerance, needle ontogeny and [CO2], with remarkable contribution of terpenoids. Chemical defense and drought tolerance were somehow linked, increasing chemical defense during recovery in the most drought-sensitive individuals. The better adaptation of trees to drought under eCO2, as well as their ability to recover better from water stress, are essential for the survival of forest trees
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|a Journal Article
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|a CO(2)
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|a Drought
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|a Genotype
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|a Heteroblasty
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|a Metabolic profiling
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|a Needle
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|a Pinus pinaster
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| 650 |
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a Carbon Dioxide
|2 NLM
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| 650 |
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|a 142M471B3J
|2 NLM
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| 700 |
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|a Sanz, Miriam
|e verfasserin
|4 aut
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|a Sánchez-Gómez, David
|e verfasserin
|4 aut
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| 700 |
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|a Cadahía, Estrella
|e verfasserin
|4 aut
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| 700 |
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|a Aranda, Ismael
|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 149(2020) vom: 25. Apr., Seite 201-216
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:149
|g year:2020
|g day:25
|g month:04
|g pages:201-216
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|u http://dx.doi.org/10.1016/j.plaphy.2020.02.011
|3 Volltext
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