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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1111/nph.12270
|2 doi
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|a pubmed24n0756.xml
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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 Evangelisti, Edouard
|e verfasserin
|4 aut
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| 245 |
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|a The Phytophthora parasitica RXLR effector penetration-specific effector 1 favours Arabidopsis thaliana infection by interfering with auxin physiology
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|c 2013
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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 15.01.2014
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|a Date Revised 09.04.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2013 INRA. New Phytologist © 2013 New Phytologist Trust.
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|a Pathogenic oomycetes have evolved RXLR effectors to thwart plant defense mechanisms and invade host tissues. We analysed the function of one of these effectors (Penetration-Specific Effector 1 (PSE1)) whose transcript is transiently accumulated during penetration of host roots by the oomycete Phytophthora parasitica. Expression of PSE1 protein in tobacco (Nicotiana tabacum and Nicotiana benthamiana) leaves and in Arabidopsis thaliana plants was used to assess the role of this effector in plant physiology and in interactions with pathogens. A pharmacological approach and marker lines were used to charcterize the A. thaliana phenotypes. Expression of PSE1 in A. thaliana led to developmental perturbations associated with low concentrations of auxin at the root apex. This modification of auxin content was associated with an altered distribution of the PIN4 and PIN7 auxin efflux carriers. The PSE1 protein facilitated plant infection: it suppressed plant cell death activated by Pseudomonas syringae avirulence gene AvrPto and Phytophthora cryptogea elicitin cryptogein in tobacco and exacerbated disease symptoms upon inoculation of transgenic A. thaliana plantlets with P. parasitica in an auxin-dependant manner. We propose that P. parasitica secretes the PSE1 protein during the penetration process to favour the infection by locally modulating the auxin content. These results support the hypothesis that effectors from plant pathogens may act on a limited set of targets, including hormones
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|a Journal Article
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|a Fungal Proteins
|2 NLM
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|a Indoleacetic Acids
|2 NLM
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|a Proteins
|2 NLM
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|a cryptogein protein, Phytophthora cryptogea
|2 NLM
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| 700 |
1 |
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|a Govetto, Benjamin
|e verfasserin
|4 aut
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| 700 |
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|a Minet-Kebdani, Naïma
|e verfasserin
|4 aut
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| 700 |
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|a Kuhn, Marie-Line
|e verfasserin
|4 aut
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| 700 |
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|a Attard, Agnès
|e verfasserin
|4 aut
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| 700 |
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|a Ponchet, Michel
|e verfasserin
|4 aut
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| 700 |
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|a Panabières, Franck
|e verfasserin
|4 aut
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| 700 |
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|a Gourgues, Mathieu
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 199(2013), 2 vom: 21. Juli, Seite 476-489
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:199
|g year:2013
|g number:2
|g day:21
|g month:07
|g pages:476-489
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|u http://dx.doi.org/10.1111/nph.12270
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