Journal ArticleDOI
Aluminium tolerance in plants and the complexing role of organic acids
TLDR
A range of plant species has evolved mechanisms that enable them to grow on acid soils where toxic concentrations of Al(3+) can limit plant growth, and organic acids play a central role in these aluminium tolerance mechanisms.About:
This article is published in Trends in Plant Science.The article was published on 2001-06-01. It has received 1182 citations till now. The article focuses on the topics: Organic acid & Aluminium.read more
Citations
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Journal ArticleDOI
Cellular mechanisms for heavy metal detoxification and tolerance
TL;DR: A broad overview of the evidence for an involvement of each mechanism in heavy metal detoxification and tolerance is provided.
Journal ArticleDOI
How do crop plants tolerate acid soils? Mechanisms of aluminum tolerance and phosphorous efficiency.
TL;DR: This review examines the current understanding of the physiological, genetic, and molecular basis for crop Al tolerance, as well as reviews the emerging area of P efficiency, which involves the genetically based ability of some crop genotypes to tolerate P deficiency stress on acid soils.
Journal ArticleDOI
Root exudation and rhizosphere biology.
TL;DR: The authors' understanding of the biology, biochemistry, and genetic development of roots has considerably improved during the last decade, and the processes mediated by roots in the rhizosphere such as the “spatially aggregating” process are understood more fully.
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A long way ahead: understanding and engineering plant metal accumulation.
TL;DR: Some plants can hyperaccumulate metal ions that are toxic to virtually all other organisms at low dosages, and this trait could be used to clean up metal-contaminated soils.
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Role of silicon in enhancing the resistance of plants to biotic and abiotic stresses
TL;DR: The role of Si in conferring resistance to mutiple stresses is described and genetic modification of the root ability to take up Si has been proposed to obtain plants resistant to multiple stresses.
References
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Journal ArticleDOI
Function and mechanism of organic anion exudation from plant roots
TL;DR: The benefits that plants derive from the presence of organic anions in the rhizosphere are described and the potential for biotechnology to increase organic anion exudation is highlighted.
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Aluminum Toxicity and Tolerance in Plants
Emmanuel Delhaize,Peter R. Ryan +1 more
TL;DR: Recent progress that has been made in the understanding of Al toxicity and the mechanisms of Al tolerance in plants are reviewed.
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Aluminum Tolerance in Wheat (Triticum aestivum L.) (II. Aluminum-Stimulated Excretion of Malic Acid from Root Apices)
TL;DR: There was a consistent correlation of Al tolerance with high rates of malic acid excretion stimulated by Al in a population of seedlings segregating for Al tolerance, consistent with the hypothesis that the Alt1 locus in wheat encodes an Al tolerance mechanism based on Al-stimulated excretion ofmalic acid.
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The chemistry of aluminum as related to biology and medicine.
TL;DR: Al3+ is expected to complex with oxygen donor ligands, especially phosphates, and it does so in soils, in the gastrointestinal tract, and in cells, and an appreciable fraction occurs as a neutral complex that may pass through membranes and provide a vehicle for Al3+ absorption into the body.