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Regulation of ion channels in maize roots during water stress
Reference
P06568
Principal Investigator / Supervisor
Professor Mark Tester
Co-Investigators /
Co-Supervisors
Institution
University of Cambridge
Department
Plant Sciences
Funding type
Research
Value (£)
138,204
Status
Completed
Type
Research Grant
Start date
11/02/1997
End date
11/02/2000
Duration
36 months
Abstract
We have characterised K+-selective channels in the cortex and stele of maize roots which are likely to catalyse the transport of K+ from the soil to the shoot in the intact plant. Water stress and the stress hormone, ABA, alter activity of K+ channels in the stele to reduce ion transport to the shoot; this is of particular interest in the study of the molecular processes involved in drought tolerance in maize. (Low water supply is a major limiter of maize productivity.) The ABA effects are also notable in being opposite to those observed in guard cells and are therefore of general interest because of the novel signalling pathways which must be involved. We will study this using mainly electrophysiological techniques.
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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