Award details

Regulation of a calcium channel in relation to polarised growth of root hairs

Reference	P11117
Principal Investigator / Supervisor	Professor Colin Brownlee
Co-Investigators / Co-Supervisors	Professor Julia Davies
Institution	Marine Biological Association
Department	The Laboratory
Funding type	Research
Value (£)	110,976
Status	Completed
Type	Research Grant
Start date	08/08/1999
End date	08/08/2002
Duration	36 months

Abstract

Root hair growth is by polarised apical extension, a process which is inextricably linked to the presence of an apex-high cytosolic free calcium gradient. It has been supposed, but never demonstrated, that this gradient is established through the activity of calcium channels in the root hair apical plasma membrane. We have identified such a calcium entry pathway in protoplasts released by UV laser microsurgery from the apices of Arabidopsis thaliana root hairs. In this joint research programme between the MBA and the University of Cambridge, we shall combine the first electrophysiological characterisation of a root hair calcium channel with in vivo measurements of free calcium dynamics by confocal laser microscopy. This will permit a unique determination of the functional significance of this channel in root hair growth, development and response to phytohormonal signalling. (Joint with grant P10997).

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

Associated awards:

P10997 Regulation of a calcium channel in relation to polarised growth of root hairs

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