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Expression profiling of the host response to bacterial infection : the transition from basal to induced defence responses inRPM1-mediated resistance
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Torres, Marta de, Sanchez, Pedro, Fernandez-Delmond, Isabelle and Grant, Murray (2003) Expression profiling of the host response to bacterial infection : the transition from basal to induced defence responses inRPM1-mediated resistance. The Plant Journal, 33 (4). pp. 665-676. doi:10.1046/j.1365-313X.2003.01653.x ISSN 0960-7412.
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Official URL: http://dx.doi.org/10.1046/j.1365-313X.2003.01653.x
Abstract
Changes in transcription in leaves of Arabidopsis thaliana were characterised following challenge with strains of Pseudomonas syringae pv. tomato DC3000 allowing differentiation of basal resistance (hrpA mutants), gene-specific resistance (RPM1-specified interactions) and susceptibility (wild-type pathogen). In planta avirulence gene induction, changes in host [Ca2+]cyt and leaf collapse were used to delineate the transition from infection to induced resistance. The plant responds rapidly, dynamically and discriminately to infection by phytopathogenic bacteria. Within the first 2 h host transcriptional changes are common to all challenges indicating that Type III effector function does not contribute to early events in host transcriptome re-programming. The timing of induction for specific transcripts was reproducible, hierarchical and modulated at least in part through EDS1 function. R gene-specific transcripts were not observed until 3 h after inoculation. Intriguingly, the R gene-specific response proteins are expected to localise to diverse cellular addresses indicative of a global impact on cellular homeostasis. The altered transcriptional response rapidly manifests into initial symptoms of leaf collapse within 2 h, although establishment of the full macroscopic HR occurs significantly later.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||
| Journal or Publication Title: | The Plant Journal | ||||
| Publisher: | Wiley-Blackwell Publishing Ltd. | ||||
| ISSN: | 0960-7412 | ||||
| Official Date: | 2003 | ||||
| Dates: |
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| Volume: | 33 | ||||
| Number: | 4 | ||||
| Page Range: | pp. 665-676 | ||||
| DOI: | 10.1046/j.1365-313X.2003.01653.x | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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