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FEBS Lett. 2007 May 25;581(12):2255-62. Epub 2007 Mar 30.

The roles of organic anion permeases in aluminium resistance and mineral nutrition.

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  • 1CSIRO Plant Industry, GPO Box 1600, Canberra, ACT 2601, Australia. Manny.Delhaize@csiro.au

Abstract

Soluble aluminium (Al(3+)) is the major constraint to plant growth on acid soils. Plants have evolved mechanisms to tolerate Al(3+) and one type of mechanism relies on the efflux of organic anions that protect roots by chelating the Al(3+). Al(3+) resistance genes of several species have now been isolated and found to encode membrane proteins that facilitate organic anion efflux from roots. These proteins belong to the Al(3+)-activated malate transporter (ALMT) and multi-drug and toxin extrusion (MATE) families. We review the roles of these proteins in Al(3+) resistance as well as their roles in other aspects of mineral nutrition.

PMID:
17418140
[PubMed - indexed for MEDLINE]
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