TY - JOUR
T1 - Aluminium tolerance in plants and the complexing role of organic acids
AU - Ma, Jian Feng
AU - Ryan, Peter R.
AU - Delhaize, Emmanuel
N1 - Funding Information:
We are grateful to Hirohito Ueno for help in preparation of figures. We also thank Julie Hayes and Hiroyuki Koyama for critical reading of the manuscript. Part of this work was supported by a Grant-in-Aid for General Scientific Research (grant no. 13660067 to J.F.M.) from the Ministry of Education, Science, Sports and Culture of Japan), by Sunbor grants, and by the Sumitomo foundation.
PY - 2001
Y1 - 2001
N2 - The aluminium cation Al3+ is toxic to many plants at micromolar concentrations. A range of plant species has evolved mechanisms that enable them to grow on acid soils where toxic concentrations of Al3+ can limit plant growth. Organic acids play a central role in these aluminium tolerance mechanisms. Some plants detoxify aluminium in the rhizosphere by releasing organic acids that chelate aluminium. In at least two species, wheat and maize, the transport of organic acid anions out of the root cells is mediated by aluminium-activated anion channels in the plasma membrane. Other plants, including species that accumulate aluminium in their leaves, detoxify aluminium internally by forming complexes with organic acids.
AB - The aluminium cation Al3+ is toxic to many plants at micromolar concentrations. A range of plant species has evolved mechanisms that enable them to grow on acid soils where toxic concentrations of Al3+ can limit plant growth. Organic acids play a central role in these aluminium tolerance mechanisms. Some plants detoxify aluminium in the rhizosphere by releasing organic acids that chelate aluminium. In at least two species, wheat and maize, the transport of organic acid anions out of the root cells is mediated by aluminium-activated anion channels in the plasma membrane. Other plants, including species that accumulate aluminium in their leaves, detoxify aluminium internally by forming complexes with organic acids.
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U2 - 10.1016/S1360-1385(01)01961-6
DO - 10.1016/S1360-1385(01)01961-6
M3 - Review article
C2 - 11378470
AN - SCOPUS:0035209879
VL - 6
SP - 273
EP - 278
JO - Trends in Plant Science
JF - Trends in Plant Science
SN - 1360-1385
IS - 6
ER -