Time-dependency of fln1 complementation with DEX treatment. (A) Seeds from FLN1/fln1-1 FLN1-HA line 2 were plated, stratified for 2 days at 4 °C, then incubated at RT. DEX was added at the indicated time after incubation at RT and photographed at 7 days. (B) Photographs of seedlings at 1, 2 and 3 days after germination immediately prior to DEX addition, showing the extent of seedling growth at time of DEX application. The experiment in (A) was performed 3 times with 3 independent lines and results were similar for all lines and replicas. Representative pictures are shown.