Infection process in sheath blight of rice caused by Rhizoctonia solani

When Rhizoctonia solani is inoculated on inner surface of rice sheath it first colonized the surface before producing the infection structures like lobate appressoria, bulbous appressoria and infection cushion. The most frequent penetration was by hyphal tips followed by lobate apressoria. Colonization of epidermal and mesophyll cells was both intra- and inter-cellular. Intra