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Journal of Biological Sciences
Year: 2003  |  Volume: 3  |  Issue: 5  |  Page No.: 508 - 514

Changes in Some Biochemical Parameters of Mulberry (Morus sp.) Leaves after Infected with Leaf Spot Disease

Lipika Ghosh, M.S. Alam, M.R. Ali, A.M. Shohael, F. Alam and R. Islam    

Abstract: The biochemical parameters such as moisture, ash, protein, fat, carbohydrate, Vitamin-C, phenol, pectin and mineral contents of healthy and leaf spot disease infected mulberry (Morus sp.) leaves were analyzed. Most of these nutrient contents in mulberry leaves were affected greatly with the infection of fungi. Total sugar, reducing sugar, non-reducing sugar, starch, moisture, ash, protein and lipid contents were found to be decreased in infected mulberry leaves due to leaf spot disease caused by Cercospora moricola Cooke and these contents were decreased by 8.58, 1.6, 60.09, 20.22, 24.52, 38.16, 33.84 and 40.26%, respectively. Among the contents, only Vitamin-C, phenol, pectin and mineral contents were found to be increased in infected samples over healthy samples and these contents were increased by 90, 84.21, 35 and 39.97%, respectively. The changes of total sugar, reducing sugar, non-reducing sugar, starch, protein, ash and lipid contents decreased remarkably but those of Vitamin-C, phenol, pectin and mineral contents increased significantly in leaves of disease affected mulberry as compared to those in healthy mulberry.

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