Fig. 4

The mutation of OsPT4 decreased the amino acid concentration in germinating seeds. Seeds of the WT and OsPT4 mutants were grown hydroponically in nutrient rich solution. The germinating seeds were harvested for assaying the concentration of amino acid on 3 and 7 days after germination. Values are means 4 replicates, ± SE (n = 4). Each replicates used 10 seeds. Different letters indicates that the values differ significantly between WT and OsPT4 mutants (**P < 0.01; ***P < 0.005; Student’s t-test). ns = not significant