Fig. 4.

The contents of lysine, total amino acids and proteins in mature seeds of transgenic and wild-type rice. A Free lysine content (μg/g dry seed weight). B Percentage of total lysine per total free amino acids (in weight). C Total free amino acid content (μg/g dry seed weight). D Total lysine content (mg/g dry seed weight). E Percentage of total lysine per total proteins (in weight). F Total protein content (mg/g dry seed weight). Error bars represent SDs of three biological replicates, and the different letters indicate statistical significance among transgenic plants and wild type at P < 0.05.