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|a 10.1093/jxb/eraf145
|2 doi
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|a pubmed25n1588.xml
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|a (DE-627)NLM386494878
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|a (NLM)40176293
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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 |
1 |
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|a Zhang, Weiqi
|e verfasserin
|4 aut
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| 245 |
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|a The CAPE1 peptide confers resistance against bacterial wilt in tomato
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|c 2025
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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 01.10.2025
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|a Date Revised 03.10.2025
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2025. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a Bacterial wilt caused by Ralstonia solanacearum is one of the most destructive bacterial diseases for which no effective treatment exists. There is an urgent need to understand the basis of resistance against this pathogen in order to engineer efficient strategies in the field. We previously demonstrated that resistant tomato plants limit bacterial movement in the apoplast and the xylem. As a first step to dissect the underlying mechanisms, we analysed the apoplast proteome upon challenge with R. solanacearum in the susceptible tomato cultivar Marmande and the resistant cultivar Hawaii 7996. Here, we described the xylem proteome in these same cultivars and compared it with the apoplastic proteome, revealing variety-dependent and infection-dependent changes. This proteomic analysis led to the identification of pathogenesis-related 1 (PR1) proteins as highly induced upon infection. Since PR1b was the most abundant PR1 protein in both the apoplast and the xylem, we concentrated on this family member to study the role of PR1s in the interaction between tomato and R. solanacearum. Surprisingly, lack of PR1b resulted in enhanced resistance to R. solanacearum in tomato, which could be due to an up-regulation of homologous genes in a compensatory effect as has been reported before. PR1 processing by an unknown protease in tomato results in the generation of the CAPE peptide. Treatment of tomato plants with the CAPE1 peptide resulted in restriction of R. solanacearum growth, via defence gene reprogramming. Future work in the lab will help determine which tomato secreted proteases cleave PR1s to generate CAPEs
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|a Journal Article
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|a Ralstonia solanacearum
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|a Solanum lycopersicum
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| 650 |
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|a Bacterial wilt
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| 650 |
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4 |
|a PR1 proteins
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| 650 |
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4 |
|a tomato disease resistance
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| 650 |
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4 |
|a xylem proteome
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Proteome
|2 NLM
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| 700 |
1 |
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|a Planas-Marquès, Marc
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liang, Moyan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Qingshan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Vermeulen, Annemarie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kaschani, Farnusch
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kaiser, Markus
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Takken, Frank L W
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Coll, Nuria S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Valls, Marc
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 76(2025), 15 vom: 01. Okt., Seite 4340-4358
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnas
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| 773 |
1 |
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|g volume:76
|g year:2025
|g number:15
|g day:01
|g month:10
|g pages:4340-4358
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| 856 |
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|u http://dx.doi.org/10.1093/jxb/eraf145
|3 Volltext
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