Inhibition of Ca2+ and Zn2+ Uptake by Mn2+ in Excised Rice Roots
نویسندگان
چکیده
The effects of varying concentrations of Mn2* on the absorption of divalent cations, viz., Ca2+ and Zn2+ from 2 concentrations were studied. Mn2+ at all concentrations tested were inhibitory to Ca2+ uptake from 0.1 and 5 mM CaCl2 . However, when Ca2+ uptake was measured at concentrations ranging from 0.05 to 10 mM CaCl2, MnCl2 only at high concentration of 5 mM, inhibited Ca ab sorption. Zn2+ uptake from 0.1 mM ZnCl2 was decreased by all concentrations of Mn2+.
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