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Plant Physiology 44:1457-1460 (1969) © 1969 American Society of Plant Biologists Factors Related to Iron Absorption by Enzymically Isolated Leaf Cells 1a Department of Horticulture, Michigan State University, East Lansing Michigan
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.
2 Present address: Biology Division, Bhabha Atomic Research Centre, Bombay 85, India. 1 Michigan Agricultural Experiment Station Journal Article No. 4867. This article has been cited by other articles:
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