Fig. 4
From: Salt stress-induced polyamine biosynthesis contributes to blast resistance in rice
OsSAMDC-OX transgenic rice plants displays enhanced disease resistance against M. oryzae. a–c Disease phenotype, lesion number, and relative fungal biomass of OsSAMDC-OX and -RNAi lines upon M. oryzae infection. Two independent lines of OsSAMDC-OX-3 and OX-5, and RNAi-2 and RNAi-3 were used for inoculation assays. Conidial suspensions (1 × 105 conidia/mL in 0.02% Tween-20) were sprayed onto the leaf surface of 2-week-old seedlings for 5-d. Images were taken at 5 dpi. Values are means ± SD (n = 3). Different letters indicate the significant differences based on one-way ANOVA with Tukey’s HSD test. d, e Disease symptoms and lesion length of the OsSAMDC transgenic lines by punch inoculation with M. oryzae conidia. Images were taken at 5 dpi