FIG. 2.

Antifungal activities of the phenylpyrrole fludioxonil and the polyketide ambruticin on A. brassicicola isolates. Conidia or mycelium from WT isolates and AbNIK1 mutants of A. brassicicola was exposed to either fludioxonil (F) or ambruticin (A) at various concentrations (0.01 to 10 mg/liter). For each condition, the reduction in germination or radial growth was expressed as a percentage relative to the dimethyl sulfoxide control. In the diagram, the color intensity is proportional to the inhibitory activity. Correspondences between color intensities and the percentages of fungal growth inhibition are given in the scale at the bottom.