Figure 3.

In vitro antifungal activities of the endophytic P. polymyxa SK1 against four fungal pathogens. A 5 mm fungus plug was inoculated into the center of the PDA medium surrounded by four spots of bacterial inoculum. Plates (a), (b), (c), and (d) are controls of Fusarium oxysporum, Botryosphaeria dothidea, Botrytis cinerea, and Fusarium fujikuroi, respectively. Plates (e), (f), (g), and (h) contain dual cultures of SK1 and the fungal pathogens. Antifungal activities were measured as theange of coloration from y size of the zones of inhibition of the pathogenic fungi. Zones of inhibitions were expressed as percentages.