Aufnahme und Verlagerung von Eisen bei Bohnenpflanzen in Abhängigkeit von Transpiration und Stoffwechselaktivität

Distribution pattern of root‐supplied59iron in iron‐sufficient and iron‐deficient bean plants

“…In the xylem sap, Fe is mainly transported in form of Fe 111 , associated mostly with citrate (Tiffin, 1972). In pea or bean plants, Fe transport from roots to the shoot is distinctly influenced by transpiration (Branton and Jacobsen, 1962;Schultz and Marschner, 1969). Iron is also fairly mobile in the phloem as shown by substantial concentrations of Fe in the phloem sap (Hocking, 1980) and by retranslocation of foliar-applied Fe (Martens and Westermann, 1991).…”