“…Reabsorption of iron released from disintegrated plastids during senescence and in abscission zone. During that period an increase or temporary supply of surplus iron is present as a result of many catabolic reactions (Barton, 1970;Maramorosch and Hirumi, 1973-Gailhofer and Thaler, 1974Ljubesic, 1976;Wildman and Hunt, 1976;Toyama, 1980;Singh and Greer, 1980). III.…”