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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2016.02.013
|2 doi
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|a pubmed25n0858.xml
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|a (DE-627)NLM25767053X
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|a (NLM)26897116
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|a (PII)S0981-9428(16)30038-9
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a de Miguel, Marina
|e verfasserin
|4 aut
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| 245 |
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|a Organ-specific metabolic responses to drought in Pinus pinaster Ait
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|c 2016
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| 336 |
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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 13.12.2016
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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 © 2016 Elsevier Masson SAS. All rights reserved.
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|a Drought is an important driver of plant survival, growth, and distribution. Water deficit affects different pathways of metabolism, depending on plant organ. While previous studies have mainly focused on the metabolic drought response of a single organ, analysis of metabolic differences between organs is essential to achieve an integrated understanding of the whole plant response. In this work, untargeted metabolic profiling was used to examine the response of roots, stems, adult and juvenile needles from Pinus pinaster Ait. full-sib individuals, subjected to a moderate and long lasting drought period. Cyclitols content showed a significant alteration, in response to drought in all organs examined, but other metabolites increased or decreased differentially depending on the analyzed organ. While a high number of flavonoids were only detected in aerial organs, an induction of the glutathione pathway was mainly detected in roots. This result may reflect different antioxidant mechanisms activated in aerial organs and roots. Metabolic changes were more remarkable in roots than in the other organs, highlighting its prominent role in the response to water stress. Significant changes in flavonoids and ascorbate metabolism were also observed between adult and juvenile needles, consistent with previously proven differential functional responses between the two developmental stages. Genetic polymorphisms in candidate genes coding for a Myb1 transcription factor and a malate dehydrogenase (EC 1.1.1.37) were associated with different concentration of phenylalanine, phenylpropanoids and malate, respectively. The results obtained will support further research on metabolites and genes potentially involved in functional mechanisms related to drought tolerance in trees
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Aerial organs
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|a Drought
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|a Genotype
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|a Heterophylly
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|a Metabolic profiling
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|a Pinus pinaster
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|a Root
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|a Plant Proteins
|2 NLM
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|a Transcription Factors
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a Malate Dehydrogenase
|2 NLM
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| 650 |
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|a EC 1.1.1.37
|2 NLM
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| 700 |
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|a Guevara, M Ángeles
|e verfasserin
|4 aut
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|a Sánchez-Gómez, David
|e verfasserin
|4 aut
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|a de María, Nuria
|e verfasserin
|4 aut
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|a Díaz, Luis Manuel
|e verfasserin
|4 aut
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|a Mancha, Jose A
|e verfasserin
|4 aut
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|a Fernández de Simón, Brígida
|e verfasserin
|4 aut
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|a Cadahía, Estrella
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|a Desai, Nalini
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|a Aranda, Ismael
|e verfasserin
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|a Cervera, María-Teresa
|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 102(2016) vom: 15. Mai, Seite 17-26
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:102
|g year:2016
|g day:15
|g month:05
|g pages:17-26
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|u http://dx.doi.org/10.1016/j.plaphy.2016.02.013
|3 Volltext
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|d 102
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