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The gibberellin pathway as a mediator of plant homeobox function
Reference
G14026
Principal Investigator / Supervisor
Professor Miltos Tsiantis
Co-Investigators /
Co-Supervisors
Institution
University of Oxford
Department
Plant Sciences
Funding type
Research
Value (£)
184,984
Status
Completed
Type
Research Grant
Start date
01/08/2001
End date
31/07/2004
Duration
36 months
Abstract
Using an inducible KNOTTED1-homebox (KNOX) Arabidopsis line, we have established that gibberellin (GA) will suppress the lobed leaf phenotypes resulting from KNOX misexpression. To further understand this effect, we will study the genetic interactions between Arabidopsis GA mutants and leaf mutants/transgenic lines that misexpress KNOX genes. Similar analyses will be performed using KNOX-loss-of-function mutants. In all cases, GA responsive gene expression will be monitored as well as changes in GA biosynthetic gene expression and GA levels. Finally, we will test whether recreating a hormonal environment of reduced GA and increased cytokinin is sufficient to elicit the lobed leaf phenotype conferred by KNOX overexpression in Arabidopsis. These experiments will provide insight into the way growth regulator and KNOX defined pathways are integrate to control plant development.
Summary
unavailable
Committee
Closed Committee - Genes & Developmental Biology (GDB)
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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