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The roles of organic anion permeases in aluminium resistance and mineral nutrition
Author(s) -
Delhaize Emmanuel,
Gruber Benjamin D.,
Ryan Peter R.
Publication year - 2007
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2007.03.057
Subject(s) - efflux , permease , transporter , biochemistry , chemistry , gene , mineral , amino acid , aluminium , organic cation transport proteins , biology , chelation , organic anion , organic acid , ion , inorganic chemistry , organic chemistry
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.