Figure 8

ABA inhibits germination and growth of cycam1 seedlings. WT, cycam1-1 and cycam1-2 seedlings were grown on MS medium supplemented with 50, 100 and 200 nM ABA under LD conditions. ABA (100-200 nM) inhibited germination and growth of cycam1-1 and cycam1-2 more than the WT (A). At 200 nM ABA, the expansion of cycam1, but not WT cotyledons was inhibited (A). Fresh weight of WT, cyam1-1 and cycam1-2 seedlings exposed to 100 nM ABA (or mock treatment) for 3 weeks. (B). Asterisks indicate significant differences, as determined by Student’s t-test (** P < 0.01).