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Defining avr/R gene independent bacterial elicitors of plant defence; contributors to defence potentiation?
Reference
P16562
Principal Investigator / Supervisor
Professor Luis Mur
Co-Investigators /
Co-Supervisors
Dr Paul Kenton
,
Professor John Mansfield
Institution
Aberystwyth University
Department
Inst of Biological, Environ & Rural Sci
Funding type
Research
Value (£)
132,280
Status
Completed
Type
Research Grant
Start date
01/10/2002
End date
01/10/2004
Duration
24 months
Abstract
Potentiation is a key element in plant resistance to pathogens and is established via a non-avr dependent mechanism. Such eliciting factors encoded by the bacterium will be targeted by mutagenesis of P. s pv. phaseolicola hrpL strains where the avr protein is not delivered into the plant cell. As the hrpL activates the AoPRT-L promoter, non-avr elicitation mutants will fail to elicit cell death on AoPRT-L avrPpiA1 transgenic tobacco. Avirulence gene- independent elicitation (aie) mutants will be assessed for the ability to confer to a potentiated state (potentiation elicitation). Responses by Arabidopsis to expressed AIE/PE proteins and non-hrp mutants where the AIE/PE ORF has been disrupted will be extensively characterised. Isolation of AIP/PE factors is an essential preliminary to future functional genomic analyses of potentiation.
Summary
unavailable
Committee
Closed Committee - Plant & Microbial Sciences (PMS)
Research Topics
X – not assigned to a current Research Topic
Research Priority
X – Research Priority information not available
Research Initiative
X - not in an Initiative
Funding Scheme
X – not Funded via a specific Funding Scheme
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