Figure 5.

Expression of gene IAA in wheat. Real time quantitative RT-PCR was used to assess gene IAA expression in root apexes (0–20 mm) of wheat lines ET8. Four-day-old wheat seedlings were exposed to 0.5 mM CaCl₂ solution (pH 4.5) containing 0 (CK), 25, 50 or 100 μM AlCl₃ for 24 h (A). Four-day-old wheat seedlings were exposed to 0.5 mM CaCl₂ solution (pH 4.5) containing 0 or 50 μM AlCl₃ for 0 (CK), 6, 12 and 24 h (B). Data are means ± SD (n = 3). Small letter differences in the same figure mean significant difference at P < 0.05.