Abstract
Seedlings of Picea abies were grown in nutrient solutions containing a range of Al supply. Root elongation was initially inhibited by all Al supplies, but at exposures below 400 μM recovered to the control value over the course of the treatment period. Exposure to aluminium decreased the contents of Mg and Ca in both roots and needles of the seedlings. The uptake of Al into the roots was strongly pH dependent. At low pH values despite a low Al content in the roots, an effect of Al on Mg contents could still be shown. In investigations of 45Ca uptake into roots Al decreased uptake, whereas Hg increased uptake. It is suggested that Al inhibits Mg uptake by displacing Mg in the apoplast of the root cortex as well as inhibiting uptake of Mg at the plasma membrane.
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© 1991 Springer Science+Business Media Dordrecht
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Godbold, D.L. (1991). Aluminium decreases root growth and calcium and magnesium uptake in Picea abies seedlings. In: Wright, R.J., Baligar, V.C., Murrmann, R.P. (eds) Plant-Soil Interactions at Low pH. Developments in Plant and Soil Sciences, vol 45. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3438-5_84
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DOI: https://doi.org/10.1007/978-94-011-3438-5_84
Publisher Name: Springer, Dordrecht
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