BIOCHEMICAL RESPONSES OF MULBERRY INDUCED BY FOLIAR INFACTION WITH PHYLLACTINIA CORYLEAG.M. VIDYASAGAR`, D. KOTRESHA, NARAYAN HOSMANI AND SHIVANAND S. SKAPALAbstract The middle aged powdery mildew infected leaves of mulberry variety IA cultivated at Ka ma taka State Sericulture Research and Development Institute, Kadaganchi,Gulbarga, were analyzed to know the change in chlorophyll, protein, phenol and flavonol content at five different btages of infection. The results obtained revealed that as the level of infection increased, the amount of chlorophyll and protein decreased significantly. However, the phenol content increased till the 2nd stage of infection and then a gradual decrease was observed. Fla vonol content increased significantly along with disease seventy. Six enzymes activity have been determined. The activity of amylase, acid phosphatase and alkaline phosphatase decreased in powdery mildew infected leaves as compared to healthy. Whemas, the activity of protease, peroxidase and polyphenol oxidase was found to be increased.
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