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Expression levels of the Ethylene Responsive Factor 1 (ERF1), ERF2, and ERF10 in roots treated with 40% PEG (–1.76 MPa) of the the wild-type (WT) and lines overexpressing (35S:Pgb1) or down-regulating (Pgb1-RNAi) AtPgb1. Values are normalized to the WT at 0 h (set at 1), and are means ±SE of three biological replicates.
