Abstract:

       We employed the strain, BNR-1, of Nonpathogenic Binucleate Rhizoctonia species to inoculate the roots of wheat and to determine the change of wheat defense enzyme activity in a certain vegetative period. Results show that the activities of peroxidase(POD), polyphenoloxidase(PPO), phenylalanine ammonialyase(PAL), chitinase and β-1,3-glucanase of wheat samples are significantly enhanced after they are processed by BNR-1. Moreover, their sharp eyespot incidence is dramatically decreased after they are processed by BNR-1.

Key words: Nonpathogenic Binucleate Rhizoctonia species, peroxidase, polyphenoloxidase, phenylalanine ammonialyase, chitinase, β-1,3-glucanase