Figure 4.

Overexpression of sHSP22 confers reduced sensitivity to ABA. A, Root phenotype of sHSP22 overexpression seedlings and vector control grown horizontally on half-strength MS medium with or without various ABA concentrations (0, 0.5, 1.0, and 1.5 μm). Representative seedlings were shown after 9 d of growth. Bar = 0.5 cm. B, Statistics assay of relative primary root length of seedlings shown in A. Error bars represent ±sd of one biological replicate (n = 30); three biological experiments were performed. **P < 0.01 and *P < 0.05.