Figure 3.

Effects of TOR inhibition on the accumulation of starch and anthocyanins in M. hupehensis plants under low N stress. (A) Staining of starch in leaves after low N treatment with exogenous AZD8055 for 35 days. (B) Starch content in leaves after low N treatment with exogenous AZD8055 for 35 days. (C) Red colors of stems after low N treatment with exogenous AZD8055 for 35 days. (D) Content of anthocyanins in plants after low N treatment with exogenous AZD8055 for 35 days. Data are mean ± standard error of five replicate samples. Different lowercase letters indicate statistically significant differences between treatments according to Tukey’s multiple range test (P < .05). NC, plants with no treatment; 0A, low N stress treatment (0.2 mM N); 1A and 10A, low N stress with 1 μM (1A) and 10 μM (10A) AZD8055 treatments.