Fig. 6: Accumulations of soluble sugars and amino acids in the leaves of MdATG8i-overexpressing apple lines and WT plants after 80 days of normal or drought stress conditions.

Comparisons of sorbitol (a), sucrose (b), glucose (c), proline (d), histidine (e), tyrosine (f), valine (g), arginine (h), and glutamine (i) contents between WT and MdATG8i-overexpressing apple plants. The data are shown as the means of three replicates with SDs. Values with different letters differed significantly at P < 0.05 according to Tukey’s multiple range test.