Figure 6.

Effect of orfamides (orfamide A, orfamide B, and orfamide G) on the viability of zoospores of the oomycete pathogens Pythium ultimum and Phytophthora porri CBS 127099 (B). Zoospores of both pathogens were incubated in the presence of increasing concentrations of orfamide A and B and the time (in seconds) that it took to observe lysis was recorded immediately under an Olympus BX51 microscope. Data are the mean of three repetitions. Vertical bars indicate standard deviations. Different letters indicate significant differences among different treatments for that specific concentration (Tukey's test, α = 0.05).