Inhibition of phosphate uptake in corn roots by aluminum-fluoride complexes

From: Plant Physiology | Date: August 1, 2002| Author: Facanha, Arnoldo Rocha; Okorokova-Facanha, Anna L | Copyright information

Inhibition of Phosphate Uptake in Corn Roots by Aluminum-Fluoride Complexes1

F forms stable complexes with Al at conditions found in the soil. Fluoroaluminate complexes (AlF^sub x^) have been widely described as effective analogs of inorganic phosphate (Pi) in Pi-binding sites of several proteins. In this work, we explored the possibility that the phytotoxicity of AlF^sub x^ reflects their activity as Pi analogs. For this purpose, ^sup 32^P-labeled phosphate uptake by excised roots an...