Figure 5. Effects of DNA methyltransferase inhibitors 5-azacytidine on growth and ATR accumulation of rice.

Seven day-old seedlings were pretreated with 20 μM 5-azacitidine (AZA) for 16 h and then exposed to 0.4 mg L⁻¹ atrazine for 4 d. (A,B) Phenotypes of growth; (C) biomass (fresh weight); (D) chlorophyll content; (E) shoot and root elongation; (F) membrane permeability; and (G) ATR content in plants. Values are the means ± SD with three replicates. Means followed by different capital letters (shoot), lower case letters (root) and asterisks are significantly different within the treatments (p < 0.05, ANOVA).