Fig. 5.

Hypocotyl response of seedlings with altered levels of PAR1 or PAR2 to hormone application. Hypocotyl length of wild-type (wt), PAR1-RNAi (A), par2-1 (B), or PAR1 and PAR2 overexpressor (C) seedlings germinated and grown under W for 7 d on medium supplemented with increasing concentrations of PIC (upper panels) or EBL (lower panels). Hypocotyl length was measured for each line and treatment. Values are means ±SE. Black asterisks indicate significant differences (Student’s t-test) relative to the corresponding wild-type plants; red asterisks indicate significant differences (two-way ANOVA) between genotypes in response to the corresponding hormone applied (*P<0.05, **P<0.01). (This figure is available in colour at JXB online.)