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The organogenic activity of compound leaves: interplay between KNOX proteins and growth hormones

ReferenceP18044
Principal Investigator / Supervisor Professor Miltos Tsiantis
Co-Investigators /
Co-Supervisors
Institution University of Oxford
DepartmentPlant Sciences
Funding typeResearch
Value (£) 190,756
StatusCompleted
TypeResearch Grant
Start date 17/02/2003
End date 16/03/2006
Duration37 months

Abstract

Tomato leaves display prolonged organogenic activity resulting in compound leaf production. On current evidence, expression of KNOX homeodomain proteins in leaves may be involved in specifying dissected leaf morphology. Furthermore, KNOX is known to modify gibberellin (GA) biosynthesis in apical meristems and to increase cytokinin content. We propose to study the genetic interactions between tomato GA mutants and lines that misexpress KNOX genes. We will monitor the GA status of the KNOX mutants as well as expression of genes for GA biosynthesis, catabolism and response. Finally, we will test whether KNOX- mediated stimulation of cytokinin biosynthesis is also required for elaboration of the compound leaf form. The experiments will provide insight into the way growth regulators and KNOX pathways are integrated to control leaf development. (Joint with grant 18038).

Summary

unavailable
Committee Closed Committee - Plant & Microbial Sciences (PMS)
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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