Figure 4: The mycelial growth and the number of macroconidia of F. oxysporum were significantly increased when treated with FA at a concentration of 100 μmol·L−1.
(A) Agar plugs (0.7 cm diameter) of a 7-day-old colony of FO were placed in wells with different concentrations of ferulic acid. After a 72-h incubation at 26 °C in the dark, the colony diameter was estimated (cm). (B) FO (1 × 104 macroconidia per ml) was cultured in liquid potato dextrose medium mixed with six different concentrations of FA solution. The sporulation of FO macroconidia in the six treatments was measured by a haemocytometer after incubation at 26 °C in the dark with shaking. Each treatment was performed in triplicate. The error bars represent the standard error of the mean. Different letters indicate significant differences between groups according to a one-way ANOVA followed by a post-hoc LSD test (P < 0.05).
