Recent advances in aluminum toxicity and resistance in higher plants

By V. Vitorello, Flávia R. Capaldi, Vanderlei Antonio Stefanuto. 2005

252 citations recorded by the source corpus.

Aluminum toxicity is a major soil constraint to food and biomass production throughout the world. Considerable advances in the understanding of the mechanism of resistance involving exudation of organic acids have been made in recent years. However, despite intense research efforts, there are many aspects of Al toxicity that remain unclear. This article reviews the features of the chemistry of Al relevant to its toxicity followed by an examination of the mechanisms of toxicity and resistance. Emphasis, however, is given to the mechanisms of Al toxicity, since resistance has been covered recently by several reviews. Some topics which are specifically discussed in this review are: a) The possible role of cellular effects of low pH in Al toxicity, which has been largely ignored and needs to be addressed; b) The relevance of non-genotypic (cell-to-cell) variations in sensitivity to Al; c) Evidence indicating that although Al may well exert its toxic effects in the cell wall, it is highly unlikely that Al does so in a non-specific manner by mere exchangeable binding; and d) The hypothesis that the primary target of Al toxicity resides in the cell wall-plasma membrane-cytoskeleton (CW-PM-CSK) continuum has the potential to integrate and conciliate much of the apparently conflicting results in this field.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/179a931fa115f316373c771f65e3da98e423243e

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In Plant Science

1. R. Azevedo
2. P. L. Gratão
3. P. Lea
4. S. S. Gaurav
5. Yoko Yamamoto
6. Ashwani Kumar
7. N. Gupta
8. M. Haridasan

Citations in the corpus

• Making the life of heavy metal-stressed plants a little easier. (2005, background): “Aluminium (Al) is considered one of the most abundant elements in the Earth’s crust and is a major growth-limiting factor for plants in acid soils (Vitorello et al. 2005).”
• Aluminum toxicity in plant cells: Mechanisms of cell death and inhibition of cell elongation (2018, background): “Since Al ions seem to affect several targets, including carboxyl residues of pectin in the cell wall, phospholipids in the plasma membrane, glutamate, and aspartate residues in various proteins and phosphate residues in nucleotide and nucleic acids, the molecular mechanisms of Al toxicity in plants ”
• Nutritional adaptations of native plants of the cerrado biome in acid soils (2008, background): “LEVELS IN SOILS Aluminum toxicity is an important research topic since many cultivated plants are susceptible in acid soils and their growth and yield are adversely affected by high levels of available Al in the soil (Mariano et al., 2005; Silva et al., 2002; Vitorello et al., 2005).”
• Molecular Basis of Aluminium Toxicity in Plants: A Review (2013, background): “Acidic soil occurs naturally in tropical and subtropical zones, but in temperate zones, it is the result of acid rain in the industrial regions of the USA, Canada and Europe [5] and this is an increasing problem.”