Figure 3.

Performance of 35S-OsSIK2 transgenic plants and the sik2 mutant under salt stress. A, Comparison of seedling growth under salt stress. For 35S-OsSIK2 transgenic plants, 14-d-old seedlings in pots were soaked in 0.6% NaCl for 14 d and then recovered for 7 d. For sik2, 14-d-old seedlings were soaked in 0.5% NaCl for 18 d and then allowed to recover for 10 d. Numbers below the images indicate survival rates. B, Chlorophyll content in 14-d-old plants treated with 200 mm NaCl for 24 h. Each column represents an average of three replicates. Error bars indicate sd. Asterisks indicate significant differences from the corresponding controls (Nip or TP309) at *P < 0.05 and **P < 0.01. fw, Fresh weight.