Aluminum resistance in two cultivars of Zea mays L.: Root exudation of organic acids and influence of phosphorus nutrition

By A. Gaume, F. Mächler, E. Frossard. Plant and Soil, 2001

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Rhizodeposition of organic C by plants: mechanisms and controls (2003, background): “The chelating properties of organic acids are also a central mechanism involved in rhizo-sphere detoxification, as demonstrated in aluminium-tolerant plants [7, 41, 93].”
Release of phenols from Lupinus albus L. roots exposed to Cu and their possible role in Cu detoxification (2003, unknown): “Ligands that have been described previously are, e.g., phosphate groups or phenols (Gaume et al., 2001; Heim et al., 1999; Horst, 1995).”
Phosphorus uptake and rhizosphere properties of intercropped and monocropped maize, faba bean, and white lupin in acidic soil (2010, background): “Carboxylates in rhizosphere Maize has been showed to increase carboxylate exudation under P deficiency and Al stress (Gaume et al. 2001a, b).”
Influence of Microorganisms on Phosphorus Bioavailability in Soils (2005, background): “A wealth of articles describe the exudation of phosphorus-mobilizing substances by plant roots (Johnson et al. 1996; Zhang et al. 1997; Neumann and Romheld 1999; Gaume et al. 2001; Ishikawa et al. 2002).”
Plant improvement for tolerance to aluminum in acid soils – a review (2003, background): “Activation of organic accumulate Al when grown in acid soils rich in Al acid efflux occurs rapidly without any measurable (Foy et al., 1992, 1993; Gaume et al., 2001; Jensen et delay after exposure to Al in several plant species, al., 2002; Watanabe and Osaki, 2002).”