Archives of Phytopathology And Plant Protection Biochemical characterisation of grain mould resistant and susceptible genotypes and PGPR-induced resistance in the host to Curvularia lunata and Fusarium proliferatum Running head (recto): Induced grain mold

Abstract Resistance to biotic stresses in plants is either due to the presence of preformed biochemical compounds or induced in response to external stimulus. In this study, thirteen grain mold resistant and seven susceptible lines of sorghum were analyzed for biochemical defense mechanism. The levels of total phenols and phenyl alanine ammonia lyase (PAL) were almost same in the resistant and susceptible genotypes. However, two additional isoforms of peroxidase were found in the three of the thirteen resistant genotypes. The isoform peroxidase corresponding to the R f value o