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. 1969 Oct;44(10):1457-60.
doi: 10.1104/pp.44.10.1457.

Factors related to iron absorption by enzymically isolated leaf cells

S Kannan  1
Affiliations

Factors related to iron absorption by enzymically isolated leaf cells

S Kannan. Plant Physiol. 1969 Oct.

Abstract

The rate of Fe absorption by cells enzymically isolated from tobacco leaves is correlated with the age of the leaves from which the cells are derived. The cells obtained from younger leaves absorb Fe more rapidly than those from older ones. Ca inhibits Fe and Mn absorption. Fe and Mn are mutually antagonistic in their absorption by leaf cells. Ca enhances the inhibition of Mn absorption by Fe, but reduces the inhibition of Fe absorption by Mn. The affinity constant for Fe absorption by leaf cells is low. The chelate EDDHA (ethylenediamine di(o-hydroxyphenylacetate) competitively inhibits Fe absorption.

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References

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