Recently, it has been demonstrated that BTHtreatment of tomato plants protected them againstthe root rot disease caused by Fusarium oxysporumf.sp. radicis-lycoperisici (Benhamou & Bélanger,1998). Little attention has been given to inducedresistance in plants against bacterial pathogens ofthe Xanthomonas genus (Siegrist et al., 1997).Furthermore, in the Poaceae family, very few studieshave been made on induced resistance in rice plants.