Fig. 6

Melatonin positively regulates cell density and biomass of tyd4. A Cell density dynamics of tyd4 cultured with 1.0 μM ABA, 1.0 μM GA, or 1.0 μM MT; B biomass of tyd4 cultured with 1.0 μM ABA, 1.0 μM GA, or 1.0 μM MT; C biomass of tyd4 cultured with 0.1 μM ABA, 1.0 μM ABA, or 10.0 μM ABA; D biomass of tyd4 cultured with 0.1 μM GA, 1.0 μM GA, or 10.0 μM GA; E biomass of tyd4 cultured with 0.1 μM MT, 1.0 μM MT, or 10.0 μM MT. ABA, abscisic acid. GA, gibberellin 3. MT, melatonin. The same letter in the top of the bar indicated no significant difference, while different letters indicated significant difference at the level of 0.05, based on Duncan’s multiple range test