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The role of Na channels in the plasma membrane of wheat roots
Reference
P09267
Principal Investigator / Supervisor
Professor Mark Tester
Co-Investigators /
Co-Supervisors
Institution
University of Cambridge
Department
Plant Sciences
Funding type
Research
Value (£)
122,808
Status
Completed
Type
Research Grant
Start date
29/05/1998
End date
29/05/2000
Duration
24 months
Abstract
Sodium influx across the plasma membrane of glycophytes has proved difficult to characterise using whole root and patch clamp techniques. Using the planar lipid bilayer technique we have obtained preliminary data on a sodium-permeable channel from the plasma membrane of wheat root. The calcium sensitivity of single channel currents is identical to that observed in roots, and so the channel may account for both the calcium- dependent and independent pathways invoked in toxic sodium uptake. Comprehensive comparison of single channel and whole root cation fluxes in both low and high salt conditions, using bilayer and radioactive tracer flux techniques, will elucidate the physiological role of the channel and provide a basis for future manipulation of salinity tolerance in wheat.
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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