Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 273-278 |
| Number of pages | 6 |
| Journal | Trends in Plant Science |
| Volume | 6 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2001 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Genetics
Cite this
Aluminium tolerance in plants and the complexing role of organic acids. / Ma, Jian Feng; Ryan, Peter R.; Delhaize, Emmanuel.
In: Trends in Plant Science, Vol. 6, No. 6, 2001, p. 273-278.Research output: Contribution to journal › Article
}
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
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.
UR - http://www.scopus.com/inward/record.url?scp=0035209879&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035209879&partnerID=8YFLogxK
U2 - 10.1016/S1360-1385(01)01961-6
DO - 10.1016/S1360-1385(01)01961-6
M3 - Article
VL - 6
SP - 273
EP - 278
JO - Trends in Plant Science
JF - Trends in Plant Science
SN - 1360-1385
IS - 6
ER -