Figure 1.

Genetic screen and phenotypic characterization of drr1 mutants. A, Photograph of an agar plate supplied with 30 μm N-isobutyl decanamide showing a putative drr1 mutant with long primary root. B, Five 14-d-old wild-type (Ws) and drr1 seedlings grown side by side on the surface of agar plates containing 0.2 × MS medium lacking N-isobutyl decanamide. C to E, Photographs of agar plates supplied with 20 μm (C), 25 μm (D), or 30 μm (E) N-isobutyl decanamide, showing five wild-type (left) and drr1 (right) plants grown side by side. Photographs in B and C are representative individuals of four plates per treatment. Bars = 1 cm. [See online article for color version of this figure.]