Induced expression of TLD1 in response to stress and phytohormone treatment. Two-week-old wild-type rice seedlings were treated for the indicated number of hours with drought (roots exposed to air without water; A), 200 mm NaCl (B), cold (4°C; C), 50 μm ABA (D), 500 μm SA (E), 10 μm 24-epibrassinolide (BL; F), or 50 μm GA (G). The mRNA expression of TLD1 relative to that at 0 h was determined by qRT-RCR.