Fig. 4.

Hypersensitivity of TaNAC29-overexpression (OE) lines to ABA. a Phenotypes of WT, VC (vector control) and OE plants grown for 8 d on medium supplemented with 0 or 10 μM ABA (I) and primary root length (II). Values are means ± SE (n = 20 to 25 plants). Asterisks indicate statistically significant differences from WT (*P < 0.05). b Seedlings of WT, VC and TaNAC29-overexpression lines observed 8 d after germination on 1/2 MS medium supplemented with 0 or 2 μM ABA (I) and quantitative analysis of seedling emergence rate (II). Values are means ± SE (n = 60 to 90 seeds). Asterisks indicate statistically significant differences from WT (**P < 0.01). Comparison of root length of WT, VC and TaNAC29-overexpression lines (III). Three independent experiments were performed, each evaluating 60 to 90 seeds