Fig. 4. The influence of growth conditions on total ascorbate (A), the reduced (ASA) : oxidized (DHA) ascorbate ratio (B), total glutathione (C) and the reduced (GSH) : oxidized (GSSG) glutathione ratio (D) of B. × erythrophylla leaves that developed in the shade (Shade), developed in the shade and were then transferred to full sunlight (Transferred), or developed in full sunlight (Sun). Mean values ± s.e. (n = 5).