Figure 6: Effects of GAs on decreased fertility in the gtr1 mutant.

(a) gtr1 buds were treated with 50 μM GA₃, JA-Ile or MeJA as indicated. The top panel shows representative primary inflorescences. The bottom panel shows representative siliques. Stars indicate siliques rescued by hormone treatment. Scale bar, 10 mm. (b) Phenotypes of gtr1 flowers after hormone treatment as indicated. Scale bar, 1 mm (top panel) and 0.5 mm (bottom panel). (c) Phenotypes of gtr1 siliques treated with 50 μM GA_1, GA₄ and GA₈ as indicated. The top panel shows representative primary inflorescences. The bottom panel shows representative siliques. Stars indicate siliques rescued by hormone treatment. Scale bar, 10 mm.