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The interactive role of root-sourced aba and ethylene in mediating whole plant responses to soil compaction
Reference
P08455
Principal Investigator / Supervisor
Professor Jeremy Roberts
Co-Investigators /
Co-Supervisors
Professor Colin Black
,
Dr Ian Taylor
Institution
University of Nottingham
Department
Sch of Biosciences
Funding type
Research
Value (£)
131,185
Status
Completed
Type
Research Grant
Start date
01/11/1997
End date
01/11/2000
Duration
36 months
Abstract
The aim is to determine interactions between ABA and ethylene in providing signals to the shoot that roots are experiencing stress due to mechanical impedance. Availability of wild- type and ABA-deficient mutants of tomato, in addition to genetically altered material with an impaired or enhanced capacity to synthesise ethylene, places us in a unique position to establish the roles of these PGRs in the response to soil compaction. Changes in their production at the molecular level will be examined by measuring expression of ABA and ethylene biosynthesis genes in root and shoot tissue. Detailed analyses of ABA, ACC and ethylene concentrations and delivery rates when roots encounter transitions between different compaction layers will be related to changes in leaf growth rates, water status, photosynthesis and stomatal function to establish a mechanistic understanding of the responses.
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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