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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2017.12.013
|2 doi
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|a pubmed24n0930.xml
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|a (DE-627)NLM279057180
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|a (NLM)29241147
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|a (PII)S0981-9428(17)30406-0
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Krzyzaniak, Yuko
|e verfasserin
|4 aut
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|a Combined enzymatic and metabolic analysis of grapevine cell responses to elicitors
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|c 2018
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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 09.07.2018
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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 © 2017 Elsevier Masson SAS. All rights reserved.
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|a Elicitors trigger plant defense responses, including phytoalexin production and cell-wall reinforcement. Primary metabolism plays an important role in these responses as it fuels the associated energetic costs and provides precursors for the synthesis of the numerous secondary metabolites involved in defenses against pathogens. In this context, we aimed to determine whether oligosaccharidic elicitors differing in their capacity to activate defense-associated secondary metabolism in grapevine would differently impact primary metabolism. To answer this question, cell suspensions were treated with two elicitors: an oligogalacturonide, and the β-glucan laminarin. Enzymatic activity assays together with targeted (HPLC) and global (GC-MS) analyses of metabolites were next performed to compare their impact on plant primary or secondary metabolism. The results showed that the oligogalacturonide, which induced the highest level of the phytoalexin resveratrol and the highest activity of stilbene synthase, also induced the highest activity of shikimate hydroxycinnamoyltransferase, a key enzyme involved in the synthesis of lignin. The oligogalacturonide-induced defenses had a significant impact on primary metabolism 24 h following elicitor treatment, with a reduced abundance of pyruvate and 2-oxoglutarate, together with an increase of a set of metabolites including carbohydrates and amino acids. Interestingly, an accumulation of galacturonate and gentiobiose was observed in the oligogalacturonide- and laminarin-treated cells, respectively, suggesting that both elicitors are rapidly hydrolyzed in grapevine cell suspension cultures
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|a Journal Article
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|a Elicitation
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|a Grapevine cells
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|a Laminarin
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|a Oligogalacturonide
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|a Primary metabolism
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|a Stilbenes
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| 650 |
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|a Vitis vinifera
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| 650 |
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|a Plant Proteins
|2 NLM
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| 700 |
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|a Negrel, Jonathan
|e verfasserin
|4 aut
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|a Lemaitre-Guillier, Christelle
|e verfasserin
|4 aut
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| 700 |
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|a Clément, Gilles
|e verfasserin
|4 aut
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|a Mouille, Grégory
|e verfasserin
|4 aut
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|a Klinguer, Agnès
|e verfasserin
|4 aut
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|a Trouvelot, Sophie
|e verfasserin
|4 aut
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|a Héloir, Marie-Claire
|e verfasserin
|4 aut
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|a Adrian, Marielle
|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 123(2018) vom: 01. Feb., Seite 141-148
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:123
|g year:2018
|g day:01
|g month:02
|g pages:141-148
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|u http://dx.doi.org/10.1016/j.plaphy.2017.12.013
|3 Volltext
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|d 123
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