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Genetic regulation of sink strength in maize and potato

ReferenceCE08126
Principal Investigator / Supervisor Professor Nigel Halford
Co-Investigators /
Co-Supervisors
Institution Rothamsted Research
DepartmentRothamsted Research Department
Funding typeResearch
Value (£) 422,404
StatusCompleted
TypeResearch Grant
Start date 09/03/1998
End date 30/09/2002
Duration54 months

Abstract

Sucrose synthase (SuSy) activity is closely correlated with sink strength and starch accumulation in many crop storage organs. We have shown that SNF1-related protein kinase activity is required for SuSy gene expression in potato tubers, suggesting strongly that these protein kinases play a pivotal role in the determination of sink strength. We aim to manipulate this regulatory mechanism in potato tubers and maize seeds by introducing antisense and mutant forms of the protein kinase itself and the transcription factor through which it controls SuSy expression. Effects on sink strength, starch accumulation (with a view to modifying starch content), development and storage (in particular, carbohydrate metabolism in stored potato tubers) will be assessed.

Summary

unavailable
Committee Closed Committee - Genes & Developmental Biology (GDB)
Research TopicsX – not assigned to a current Research Topic
Research PriorityX – Research Priority information not available
Research Initiative Cell Engineering - GDB Committee (CE) [1994-1996]
Funding SchemeX – not Funded via a specific Funding Scheme
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