Figure 8.

abi4 Plants Are Insensitive to ABA and Cytokinin.

(A) and (B) One-week-old seedlings of the indicated lines were transferred to fresh 0.5× MS medium containing 10 μM ABA (A) or 10 μM zeatin (B). Plants were photographed 1 week later. 1, wild type; 2, abi4-1 mutant; 3, abi4-102 mutant; 4, abi4-103 mutant. Bars = 5 mm.

(C) LR density in abi4 mutants. White bars, no treatment control; gray bars, ABA treatment; black bars, zeatin treatment. The data represent the mean ± se of n = 3 independent experiments each containing 20 plants per treatment. Bars with different letters represent statistically different values by Tukey’s HSD post-hoc test (P ≤ 0.05). WT, wild type.

[See online article for color version of this figure.]