Penetration of Iron and Some Organic Substances Through Isolated Cuticular Membranes

AUTOR(ES)

Kannan, Seshadri

RESUMO

Cuticular membranes were isolated enzymically from tomato fruits and from the dorsal and ventral surfaces of the leaves of Euonymus japonicus. Penetration of Fe from FeSO4 and FeEDDHA (ferric ethylenediamine di(o-hydroxyphenylacetate) in the absence and presence of urea through the isolated cuticular membranes was studied. Fe from FeSO4 penetrated more rapidly through the cuticles than Fe from FeEDDHA. Urea reduced the penetration of Fe from FeSO4 and FeEDDHA. Binding of Fe on the inner surfaces of tomato fruit cuticles was also reduced by EDDHA.

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