Biodeterioration of active principles of Catharanthus roseus by Colletotrichum Gloeosporoides
S. K. Pandey and A. K. Roy
University Department of Botany
T.M. Bhagalpur University, Bhagalpur, Bihar, India
ABSTRACTS Majority of the members of Coelomycetes are diseases causing mostly associated with leaf spots. Leaf spot diseases are the expressions of abnormal metabolic changes due to loss of photosynthetic area. Such symptoms are produced as a result of physiological disorders in the host. These disorders may be due to nutritional imbalance or due to living organisms, usually active in localized areas of the host. Leaf spot diseases are known to cause severe damage to the plants of great economic and ornamental value. Cultivated plants are usually more susceptible to such diseases. These diseases, which deprive the plants of the aesthetic value and cause a decrease in photosynthetic area, require greater probe and attention. A general survey undertaken by the research team of TMBU under AICOPTAX Program, MoEF, New Delhi showed greater frequency of Coelomycetous fungi. Particularly Colletotrichum gloeosporoides which have been selected in the present research work for the study in detail. A general pattern of decrease of sugars, biomass and alkaloid contents were observed after pathological studies of C. roseus. The percentage decrease in Total Sugar was found 30.36%, Reducing Sugar 28.57%, Non-Reducing Sugar 30.61%, biomass (7%) Alkaloids 21% under pathogenesis.