Fig. 2.

Phenocopy of na1 mutant characteristics by BR inhibitors. (A) Mesocotyl length of wild type (WT), d5, and na1-1 plants grown in vermiculite in the light or dark for 8 d in the absence or presence of 250 μM GA₃ and 50 μM PCZ, respectively. Asterisk indicates significant difference between na1 dark and na1 dark + GA (P = 0.002; n ≥ 10). (B) Height of light-grown WT, d5, and na1-1 plants with and without PCZ. (C and E) Dwarf phenotypes of WT (C) and na1-1 (E) grown for 27 d in soil with 75 μM PCZ. (D) na1-1 control without PCZ. (Scale bars, 20 cm.) (F and H) Tassels of WT (F) and na1-1 (H) plants grown in Turface with 500 μM PCZ. (G) na1-1 control without PCZ. (A and B) Data are means ± SD; n = 10–19 (A) and n = 12 (B).