Fig. 5From: Adaptive responses of carbon and nitrogen metabolisms to nitrogen-deficiency in Citrus sinensis seedlingsEffects of N supply on mean (± SE, n = 4) concentrations of organic acids in leaves and roots. a and e Leaf and root malate. b and f Leaf and root citrate. c and g Leaf and root isocitrate. d and h Leaf and root malate + citrate + isocitrateBack to article page