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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erz562
|2 doi
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|a pubmed24n1026.xml
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|a (DE-627)NLM307976785
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|a (NLM)32211785
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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 Planas-Marquès, Marc
|e verfasserin
|4 aut
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|a Four bottlenecks restrict colonization and invasion by the pathogen Ralstonia solanacearum in resistant tomato
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|c 2020
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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 14.05.2021
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|a Date Revised 07.12.2022
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|a published: Print
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|a ErratumIn: J Exp Bot. 2022 Jun 2;73(11):3823. - PMID 35349680
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|a Citation Status MEDLINE
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|a © The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a Ralstonia solanacearum is a bacterial vascular pathogen causing devastating bacterial wilt. In the field, resistance against this pathogen is quantitative and is available for breeders only in tomato and eggplant. To understand the basis of resistance to R. solanacearum in tomato, we investigated the spatio-temporal dynamics of bacterial colonization using non-invasive live monitoring techniques coupled to grafting of susceptible and resistant varieties. We found four 'bottlenecks' that limit the bacterium in resistant tomato: root colonization, vertical movement from roots to shoots, circular vascular bundle invasion, and radial apoplastic spread in the cortex. Radial invasion of cortical extracellular spaces occurred mostly at late disease stages but was observed throughout plant infection. This study shows that resistance is expressed in both root and shoot tissues, and highlights the importance of structural constraints to bacterial spread as a resistance mechanism. It also shows that R. solanacearum is not only a vascular pathogen but spreads out of the xylem, occupying the plant apoplast niche. Our work will help elucidate the complex genetic determinants of resistance, setting the foundations to decipher the molecular mechanisms that limit pathogen colonization, which may provide new precision tools to fight bacterial wilt in the field
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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|a Ralstonia solanacearum
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|a Bacterial wilt
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|a disease resistance
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|a tomato
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|a vascular pathogen
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| 650 |
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|a xylem
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| 700 |
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|a Kressin, Jonathan P
|e verfasserin
|4 aut
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| 700 |
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|a Kashyap, Anurag
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Panthee, Dilip R
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Louws, Frank J
|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 |
0 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 71(2020), 6 vom: 25. März, Seite 2157-2171
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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|g volume:71
|g year:2020
|g number:6
|g day:25
|g month:03
|g pages:2157-2171
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|u http://dx.doi.org/10.1093/jxb/erz562
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