Uptake of manganese(II) and zinc(II) by chlorophylla (Chl) was investigated using a radiotracer technique in order to elucidate
its ability of scavenging metals released into the soil environment. Two possibilities were considered for the metal uptake:
(1) substitutional complexation with Chl and (2) inclusion of the metals into Chl aggregates. It was found that manganese(II)
was not trapped appreciably by both Chl itself and its aggregates. Magnesium of Chl was exchanged with zinc(II) in aqueous
phase giving Zn−Chl at pH values higher than 7. Zinc(II) was found to be trapped by Chl aggregates depending on the pH of
the aqueous phase.