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Stress-tolerance assays of AaDREB1 overexpressing transgenic Arabidopsis. Ten-day-old seedlings of AaDREB1 transgenic lines (T17, T122, T196) and the empty vector control plants (WT) were treated with either 100 mM NaCl for 12 days, 10% PEG for 10 days, or exposed to 4 °C for 20 h, then grown under normal growth conditions for 3 days. Scale bar represents 1.5 cm.
