FEBS Letters
Volume 581, Issue 12 , Pages 2255-2262, 25 May 2007

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

CSIRO Plant Industry, GPO Box 1600, Canberra, ACT 2601, Australia

Received 13 February 2007; received in revised form 14 March 2007; accepted 16 March 2007. published online 29 March 2007.

Edited by Julian Schroeder and Ulf-Ingo Flügge

Abstract 

Soluble aluminium (Al3+) is the major constraint to plant growth on acid soils. Plants have evolved mechanisms to tolerate Al3+ and one type of mechanism relies on the efflux of organic anions that protect roots by chelating the Al3+. Al3+ 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 Al3+-activated malate transporter (ALMT) and multi-drug and toxin extrusion (MATE) families. We review the roles of these proteins in Al3+ resistance as well as their roles in other aspects of mineral nutrition.

Keywords: Aluminium tolerance, ALMT, MATE, Malate, Citrate, Transport

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PII: S0014-5793(07)00311-0

doi:10.1016/j.febslet.2007.03.057

FEBS Letters
Volume 581, Issue 12 , Pages 2255-2262, 25 May 2007

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