Figure 6.

Expression of FLAs in response to a variety of hormones and stress treatments. A, RNA from 2-week-old roots (0), root segments incubated for 4 d on CIM and SIM for 14 d. B, RNA extracted from 11-d-old seedlings grown on 0 or 50 μm abscisic acid (ABA) for 2 d. C, RNA from leaves incubated for 0 or 30 min or 4 h on a solution containing the inhibitor of mitochondrial electron transport, AA. RNA gel blots were hybridized with gene-specific probes for FLA1, FLA2, and FLA8. Exposure times were 2 h, except for the AA blot, which was a 1 h exposure. The staining of rRNAs with ethidium bromide in the lower panels shows the loading in each sample.