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Quantitative studies of interpolymeric transglycosylation (IPT) of xyloglucans during plant cell growth

ReferenceP05842
Principal Investigator / Supervisor Professor Stephen Fry
Co-Investigators /
Co-Supervisors
Institution University of Edinburgh
DepartmentInst of Cell and Molecular Biology
Funding typeResearch
Value (£) 127,737
StatusCompleted
TypeResearch Grant
Start date 13/05/1996
End date 13/05/1999
Duration36 months

Abstract

Xyloglucans are major structural polysaccharides of the expanding cell walls of higher plants. Xyloglucan endotransglycosylases (XETs) catalyse interpolymeric transglycosylation (IPT) in vitro, but IPT has not yet been detected or quantified in vivo, although it is at the centre of much current thinking about the mechanism and control of plant cell expansion and fruit ripening. This work aims to validate quantitatively a novel dual-labelling method (density/radioactivity) for assaying IPT in vitro, and then to monitor the effects of several biological effectors on the rate of IPT in vivo in cultured rose cells. We will then apply the methods to the detection of IPT in living plant organs in relation to growth regulation. An important objective of the work is to test the proposed role for the IPT in the integration of xyloglucan into the accreting cell wall.

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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