Overexpression or knockdown of OsTRXh1 leads to an ABA-insensitive phenotype and an ABA-induced inhibition of seed germination. A, Germination performance of wild-type (WT), OsTRXh1 overexpression (OX), and RNAi seeds on 1/2 MS medium containing 5 μm ABA at 6 d after initiation. B, Germination rate of wild-type, OsTRXh1 overexpression, and RNAi seeds on 1/2 MS medium containing 0, 1, 3, and 5 μm ABA. The data represent means ± se of three independent experiments, with 30 seeds per experiment. [See online article for color version of this figure.]