ABSTRACT
The effect of aluminum (Al) on phosphate homeostasis and induction of acid phosphatase activity and isoenzymes was analyzed in root tips of Lotus japonicus. The rapid uptake of phosphate as well as the decrease of soluble inorganic phosphate in tissues suggested, that the presence of Al in root apoplast causes precipitation of the most of absorbed phosphate. Acid phosphatase (ACP) isoenzymes are affected differentially during low pH and Al stress and both Al induced increases and decreases of ACP isoenzyme activities were observed.
ACKNOWLEDGMENTS
The authors are grateful for financial support given by FP6-2003-INCO-DEV2-517617 from the European Union.