Role of oxidative enzymes and biochemical constituents in imparting resistance to french bean varieties against bean anthracnose
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Authors
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SACHIN GUPTA*, S.A. MALLICK, MONI GUPTA
Abstract
Enzyme activity and biochemical constituents of healthy and anthracnose infected leaves/ pods of two resistant french bean cultivars viz. Kenutcky Wonder and Pant Anupama and two susceptible ones viz. Contendor and Laxmi were evaluated. The results revealed that higher amount of oxidative enzymes (catalase, polyphenol oxidase, peroxidase) were present in diseased leaves than healthy ones and resistant varieties showed higher enzyme activity than their susceptible counter parts. In case of biochemical constituents, higher amount of total, reducing and non-reducing sugars, phenol content were present in resistant cultivars than susceptible ones. Higher amount of total and ortho-dihydric phenols and protein content was observed in diseased pods as compared to healthy pods. Higher content of chlorophyll was observed in healthy leaves of resistant varieties as compared to diseased leaves.
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