Fig. 4From: Resveratrol improves the iron deficiency adaptation of Malus baccata seedlings by regulating iron absorptionEffects of exogenous Res on rhizosphere pH and FCR activity under Fe deficiency stress. a The rhizosphere pH staining of the roots after Fe deficiency and exogenous Res treatment for 24 days. The arrows indicated the rhizosphere. The activities of H+-ATPase (b) and FCR (c) in roots after Fe deficiency and exogenous Res treatment for 24 days. FW means fresh weight. Data represent the means ± SD of triplicate experiments. Different lowercase letters indicate significant differences, according to Fisher’s LSD (P < 0.05)Back to article page