Tomato-Fusarium oxysporum interactions: II. Chitosan and MSB induced resistance against fol in young tomato plants (original) (raw)

Chitosan, chitosan hydrolysates, and menadione sodium bisulfite (MSB) were evaluated for their combined effects on the development of Fusarium wilt in young tomato plants. Experiments indicated that these treatments effectively protected plants from disease, with the most significant results observed in foliage sprays using chitosan hydrolysates and MSB (0.25 + 0.05 g/L, respectively). The induction of systemic resistance was identified as a key defense mechanism against Fusarium oxysporum f.sp. lycopersicii (FOL), accompanied by measurable enzymatic responses linked to host defense.