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Transported benzoic acid as a possible mobile signal and source of SA in systemic acquired resistance
Reference
P05871
Principal Investigator / Supervisor
Professor John Draper
Co-Investigators /
Co-Supervisors
Institution
Aberystwyth University
Department
Inst of Biological, Environ & Rural Sci
Funding type
Research
Value (£)
188,599
Status
Completed
Type
Research Grant
Start date
01/09/1996
End date
31/05/2001
Duration
57 months
Abstract
Salicylic acid (SA) is necessary for systemic acquired resistance (SAR) after local pathogen attack. The origin of SA in SAR tissues and identity of systemic signal originating from infected leaves is unclear. We have evidence that benzoic acid (BA) originating from TMV lesions may be both a mobile signal and a major source of SA in systemic tissue. We will examine directly the role of BA by expressing an enzyme (BA4H) which converts it to non-active 4- hydroxybenzoic acid. By removing BA in particular cell types (early and late around lesions, constitutively, phloem-specific) by driving BA4H from different promoters and by use of grafting experiments we will ask specific questions relating to both transport of BA and SA and origin of SA in SAR tissues.
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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