Figure 4

Contents of carbohydrates (a), soluble protein (b) and amino acid (c) in LS1 and LS2 roots under hypoxia. Carbohydrates and amino acid contents were displayed by relative contents normalized to internal standard (ribitol). Soluble protein content was displayed by % of the control. Statistically significant difference between treatments and controls were indicated by black asterisks, statistically significant difference between LS1 and LS2 were indicated by red asterisks. One asterisks and double asterisks indicated significant difference at p < 0.05 and p < 0.01 levels, respectively.