DISTRIBUTION OF MICRONUTRIENT METALS IN LEAVES AND CHLOROPLAST FRAGMENTS

Abstract

In the course of an investigation of the extracellular reactions in the light and in the dark of chloroplasts, attention was directed to the possible catalytic role of one or more of the micronutrient metals, Fe, Mn, Cu, Zn and Mo, in the cellular activities of these cytoplasmic bodies. A knowledge of the relative distribution of these micronutrients in the leaf and in the chloroplasts is desirable when considering the possible parti-pipation of one or more of these elements in such reactions. With this is view leaves and chloroplast fragments of sugar beets and chard were analyzed for these elements. Fe and Cu were found to be concd. in the chloroplasts.