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Phosphoinositides and the transduction of light signals in duckweeds

ReferenceC04062
Principal Investigator / Supervisor Dr David Ernest Hanke
Co-Investigators /
Co-Supervisors
Institution University of Cambridge
DepartmentPlant Sciences
Funding typeResearch
Value (£) 167,094
StatusCompleted
TypeResearch Grant
Start date 01/10/1995
End date 04/01/1999
Duration41 months

Abstract

We have discovered clear, repeatable effects of white and red light signals on the labelling pattern of phosphonositides in dormancy-breaking in turions of Spirodela polyrhiza. We propose to test the hypothesis that phosphoinositide headgroup turnover and Ins (1,4,5) P3 are involved in the transduction of light signals by studies of the action spectra, a full analysis of turnover using the labelling patterns of individual compounds from (3H) Ins and (32P) Pi, and binding assays for Ins (1,4,5) P3. The investigation will be extended to other well- characterised light-responses of duckweeds: circadian clock phase re-setting and photoperiodicinduction in Lemna gibba and L. paucicostrata.

Summary

unavailable
Committee Closed Committee - Biochemistry & Cell Biology (BCB)
Research TopicsX – not assigned to a current Research Topic
Research PriorityX – Research Priority information not available
Research Initiative X - not in an Initiative
Funding SchemeX – not Funded via a specific Funding Scheme
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