FIGURE 5.

The effect of silver nitrate on ethylene growth response kinetics of triple etr1-6;etr2-3;ein4-4 mutants transformed with cDNA for ETR1, ERS2, ERS2 EIN4, or ETR2. All constructs were under the promoter control of ETR1. Each panel (A–E) shows data for one seed line as designated. The transformed seedlings were grown in air for 1 h followed by application of 1 μl/liter ethylene (arrow) for 5 h. The hypocotyl response kinetics of seedlings grown on 100 μm silver nitrate are compared with seedlings grown in the absence of added silver nitrate. Data represent the mean ± S.E. from at least 5 seedlings total from at least four separate experiments. Lines were drawn by hand.