BBSRC Portfolio Analyser
Award details
Release of organic acid to the rhizosphere: a role for anion channels
Reference
BRE13629
Principal Investigator / Supervisor
Dr Stephen Roberts
Co-Investigators /
Co-Supervisors
Mr Matthew Roberts
,
Professor Dale Sanders
Institution
Lancaster University
Department
Biological Sciences
Funding type
Research
Value (£)
209,216
Status
Completed
Type
Research Grant
Start date
01/06/2001
End date
31/05/2004
Duration
36 months
Abstract
Organic acids secreted by roots into the rhizosphere can play key roles in phosphate and iron nutrition and tolerance to aluminium. Surprisingly a systematic study of the pathways by which organic acids cross the plasma membrane of root cells has never been made. Anion channels in Arabidopsis roots will be characterised with respect to organic acid permeation, gating, and pharmacology using a combination of patch clamp and cell marking techniques. Activity will be related to net organic acid release in plants of differing nutritional status. Anion channels will be identified by functional complementation screens of a yeast anion efflux mutant, their properties compared with those in planta. Physiological roles of cloned channels will be assessed by characterising overexpressing and knockout lines.
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
Biological Interactions in the Root Environment (BRE) [2000]
Funding Scheme
X – not Funded via a specific Funding Scheme
I accept the
terms and conditions of use
(opens in new window)
export PDF file
back to list
new search