Fig. 2From: Low pH-responsive proteins revealed by a 2-DE based MS approach and related physiological responses in Citrus leavesLeaf concentrations of nonstructural carbohydrates in response to low pH. a glucose; b fructose; c sucrose; d total soluble sugars (the summation of glucose, fructose and sucrose); e starch; f total nonstructural carbohydrates (TNC; the summation of glucose, fructose, sucrose and starch). Bars represent means ± SE (n = 8). Different letters above the bars indicate a significant difference at P < 0.05Back to article page