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Water stress tolerance of WT and trxy mutant plants. After 3 weeks of growth under (A) standard conditions; (B) plants watering was stopped for 9 days and then (C) rehydrated for 24 h before (D) plant survival was monitored. Data correspond to means ± SD (n = 6). The asterisk (*) indicates a mutant sample significantly different from wild-type (p < 0.05). White arrows, blue circles, blue squares and red circles indicate wild-type (Col), trxy1-1, trxy1-2 and trxy2 plants, respectively.
