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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2012.05.016
|2 doi
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|a pubmed25n0728.xml
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|a eng
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|a Boubakri, Hatem
|e verfasserin
|4 aut
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|a Thiamine induced resistance to Plasmopara viticola in grapevine and elicited host-defense responses, including HR like-cell death
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|c 2012
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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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|a Date Completed 30.11.2012
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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 © 2012 Elsevier Masson SAS. All rights reserved.
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|a Recently, thiamine (VitaminB1) has been shown to induce resistance against Pseudomonas syringae in Arabidopsis plants through priming of defense responses. In this paper, we have demonstrated the efficiency of thiamine to induce resistance against downy mildew caused by the oomycete Plasmopara viticola in a susceptible Vitis vinifera cultivar "Chardonnay" under glasshouse controlled conditions by providing a dual mode of action involving direct antifungal activity and elicitation of host-defense responses. Thiamine-induced defense responses included the generation of hydrogen peroxide (H(2)O(2)) in both grapevine suspension cultured cells (SCC) and plant leaves, upregulation of an array of defense-related genes and the induction of other defense responses at subcellular level such as callose deposition in stomata cells, phenolic compounds accumulation and hypersensitive response (HR) like-cell death. Epifluorescence microscopy studies revealed dramatic changes in P. viticola individual developmental stages during its colonization of the intercellular space of the leaf mesophyll in thiamine-treated plants. Collectively, our report evidenced the efficiency of thiamine in the control of downy mildew in grapevine by direct and indirect effects, suggesting that thiamine could be an attractive alternative to chemical fungicides in disease management in vineyards
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Hydrogen Peroxide
|2 NLM
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|a BBX060AN9V
|2 NLM
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|a Thiamine
|2 NLM
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|a X66NSO3N35
|2 NLM
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|a Wahab, Mohamed Ali
|e verfasserin
|4 aut
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|a Chong, Julie
|e verfasserin
|4 aut
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|a Bertsch, Christophe
|e verfasserin
|4 aut
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|a Mliki, Ahmed
|e verfasserin
|4 aut
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|a Soustre-Gacougnolle, Isabelle
|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 57(2012) vom: 16. Aug., Seite 120-33
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|x 1873-2690
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|g volume:57
|g year:2012
|g day:16
|g month:08
|g pages:120-33
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|u http://dx.doi.org/10.1016/j.plaphy.2012.05.016
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