Figure 1 Growth of GSB
pathogenic fungi and accumulation of
H2O2 and O2- in leaves
of PI511890 and Payzawat. A : Growth of GSB pathogens on the
leaves of Payzawat and PI511890 (40 ×). Co, Gt, Ap, Hy, Ih, and S
represent conidium, germ tube,
appresorium, hyphae, infection
hyphae, and stoma, respectively. B : Leaves of Payzawat and
PI511890 stained by diaminobenzidine at different time points afterS. cucurbitacearum inoculation. Payzawat-control and
PI511890-control are the control groups sprayed with
ddH2O. Payzawat-treatment and PI511890-treatment are the
treatment groups sprayed with the GSB suspension of 5 ×
105 spores/mL. C : Leaves of Payzawat and
PI511890 stained by nitroblue tetrazolium at different time points afterS. cucurbitacearum inoculation. D : Boxplots for
H2O2 accumulation quantified by Image J
at different time points after S. cucurbitacearum inoculation.E : Boxplots for O2- accumulation quantified
by Image J at different time points after S. cucurbitacearuminoculation. Least significant difference method was used for multiple
comparisons of the means after ANOVA analysis. Ns represents no
significance (p > 0.05). * represents p < 0.05.
** represents p < 0.01. *** represents p < 0.001.