Figure 6.

SA antagonizes ABA‐mediated suppression of seed germination. (a) Germination rate of Arabidopsis wild‐type seeds on MS medium containing no hormone or in the presence of 1 μM ABA, 10 μM SA, or 1 μM ABA plus 10 μM SA. (b) Comparison of germination rate between wild‐type and sid2‐1 on MS medium containing no hormone or in the presence of 1 μM ABA or 1 μM ABA plus 10 μM SA. The germination time course for wild‐type seeds is shown with a solid line, while for sid2‐1 it is shown with a broken line (n = 40 seeds). The percentage of germinated seeds was determined at 36, 48, 60, 72, 84, 96, 108, and 120 hr postplating. The experiments were independently repeated at least twice