Fig. 3.

Drought tolerance of WT and OsNAC2 overexpression plants. Seeds were germinated in water and transferred to Kimura B nutrient solution. Two-week-old seedlings were treated in Kimura B nutrient solution containing 10% PEG 6000. Plants before treatment (a, e), 10% PEG-treated for 3 d (b, f), and after 8 d treatment and then recovery for 8 d (c, g), are shown. d: The survival rate of WT and transgenic lines treated with 10% PEG 6000 in c and g. Error bars show the SD of three biological replicates (n = 60). ** P < 0.01 (t-test). h: The phenotype of WT and OsNAC2 overexpression line ZUOErN3 plants treated with 15% PEG 6000 for 5 d and allowed to recover for 7 d. Three independent experiments were performed. ZUONrE3, ZUOErN4: OsNAC2 overexpression plants