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Light signalling and intercompartmental communication between chloroplasts and the nucleus
Reference
P16510
Principal Investigator / Supervisor
Professor Simon Moller
Co-Investigators /
Co-Supervisors
Institution
University of Leicester
Department
Biology
Funding type
Research
Value (£)
191,468
Status
Completed
Type
Research Grant
Start date
06/08/2002
End date
06/08/2005
Duration
36 months
Abstract
Plastids communicate with the nucleus by means of retrograde plastid signals. The far-red (FR) light insensitive Arabidopsis mutant laf6, disrupted in a plastid-localised ABC-like protein (atABC1), accumulates the plastid signal protoporphyrin IX (proto IX) and has attenuated nuclear gene expression. Our data suggests that proto IX accumulation results in hypocotyl elongation in response to FR light. We will use biochemical and protein-protein interaction studies to elucidate how atABC1 regulates proto IX retrograde signalling in Arabidopsis. A new genetic screen for mutants insensitive to increased proto IX levels will yield insight into the role of chloroplasts in photomorphogenic responses such as gene expression and hypocotyl elongation.
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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