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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2019.09.048
|2 doi
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|a pubmed24n1007.xml
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|a (DE-627)NLM302135014
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|a (NLM)31606717
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|a (PII)S0981-9428(19)30400-0
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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 Baró-Montel, Núria
|e verfasserin
|4 aut
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|a Double-sided battle
|b The role of ethylene during Monilinia spp. infection in peach at different phenological stages
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|c 2019
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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
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|2 rdacarrier
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|a Date Completed 20.02.2020
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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 © 2019 Elsevier Masson SAS. All rights reserved.
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|a Controversy exists on whether ethylene is involved in determining fruit resistance or susceptibility against biotic stress. In this work, the hypothesis that ethylene biosynthesis in peaches at different phenological stages may be modulated by Monilinia spp. was tested. To achieve this, at 49 and 126 d after full bloom (DAFB), ethylene biosynthesis of healthy and infected 'Merryl O'Henry' peaches with three strains of Monilinia spp. (M. fructicola (CPMC6) and M. laxa (CPML11 and ML8L) that differ in terms of aggressiveness) was analysed at the biochemical and molecular level along the course of infection in fruit stored at 20 °C. At 49 DAFB, results evidenced that infected fruit showed inhibition of ethylene production in comparison with non-inoculated fruit, suggesting that the three Monilinia strains were somehow suppressing ethylene biosynthesis to modify fruit defences to successfully infect the host. On the contrary, at 126 DAFB ethylene production increased concomitantly with brown rot spread, and values for non-inoculated fruit were almost undetectable throughout storage at 20 °C. The expression of several target genes involved in the ethylene biosynthetic pathway confirmed that they were differentially expressed upon Monilinia infection, pointing to a strain-dependent regulation. Notably, Prunus persica 1-aminocyclopropane-1-carboxylic acid (ACC) synthase (ACS) (PpACS) family was the most over-expressed over time, demonstrating a positive ethylene regulation, especially at 126 DAFB. At this phenological stage it was demonstrated the ability of Monilinia spp. to alter ethylene biosynthesis through PpACS1 and benefit from the consequences of an ethylene burst likely on cell wall softening. Overall, our results put forward that infection not only among different strains but also at each stage is achieved by different mechanisms, with ethylene being a key factor in determining peach resistance or susceptibility to brown rot
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|a Journal Article
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|a 1-Aminocyclopropane-1-carboxylic acid
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|a ACC
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|a ACC oxidase
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|a ACC synthase
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|a ACO
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|a ACS
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|a Gene expression analysis
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|a Host-pathogen interaction
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|a Prunus persica
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|a brown rot
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|a Ethylenes
|2 NLM
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|a ethylene
|2 NLM
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|a 91GW059KN7
|2 NLM
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|a Amino Acid Oxidoreductases
|2 NLM
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|a EC 1.4.-
|2 NLM
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|a 1-aminocyclopropane-1-carboxylic acid oxidase
|2 NLM
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|a EC 1.4.3.-
|2 NLM
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1 |
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|a Vall-Llaura, Núria
|e verfasserin
|4 aut
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|a Giné-Bordonaba, Jordi
|e verfasserin
|4 aut
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|a Usall, Josep
|e verfasserin
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|a Serrano-Prieto, Sandra
|e verfasserin
|4 aut
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|a Teixidó, Neus
|e verfasserin
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|a Torres, Rosario
|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 144(2019) vom: 15. Nov., Seite 324-333
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:144
|g year:2019
|g day:15
|g month:11
|g pages:324-333
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|u http://dx.doi.org/10.1016/j.plaphy.2019.09.048
|3 Volltext
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|d 144
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