Paper Type |
Contributed Paper |
Title |
Antifungal and Cytotoxic Activity ofEverniastrum cirrhatum (Fr.) Hale |
Author |
Prasith Kekuda T. Ramamoorthy, Raghavendra H. LakshmanaShetty, Swathi Devidas, Venugopal T. Mudduraj |
Email |
raghavendra.hl@rediffmail.com |
Abstract: Everniastrum cirrhatum (Fr.) Hale (Parmeliaceae) is a foliose macrolichen which usually grows on the barks of trees in temperate regions. In the present study, we report for the first time antifungal and cytotoxic activity of E. cirrhatum. The dried lichen material was powdered and extracted with methanol using by soxhlet apparatus. Antifungal activity of extract (10-100 mg/ml) was tested against two clinical fungal isolates namely Candida albicans and Cryptococcus neoformans by well-in-agar method. Cytotoxic activity of extract (0-1,000 μg/ml) was assessed against the brine shrimp Artemia nauplii. Antifungal activity of methanol extract revealed that the growth of the fungi was affected in a dose dependent manner. The susceptibility to methanol extract was higher in case of C. neoformans. In cytotoxic study, the degree of lethality of extract was found to be concentration dependent. Highest mortality of shrimp (100%) was observed in case of extract concentration 1,000 μg/ml. LC50 value for extract was found to be 47.06 μg/ml and thus the extract is toxic. Preliminary phytochemical analysis of methanol extract by chemical tests revealed the presence of alkaloids, saponins, tannins and terpenoids. In our study, the extract was potent as it produced marked antifungal and cytotoxic activity which may be attributed to the presence of secondary metabolites. In suitable form, the lichen could be used for the treatment fungal infections and cancer. Further, detailed investigations on active principles in the lichen extract and their bio-efficacy could provide leads to interesting antifungal and cytotoxic or anti-tumor drugs. |
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Start & End Page |
76 - 83 |
Received Date |
2011-01-07 |
Revised Date |
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Accepted Date |
2011-07-25 |
Full Text |
Download |
Keyword |
Everniastrum cirrhatum (Fr.) hale, well-in-agar method, cytotoxicity, brine shrimp lethality, Artemia nauplii, LC50 |
Volume |
Vol.39 No.1 (JANUARY 2012) |
DOI |
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Citation |
Ramamoorthy P.K.T., Lakshmanashetty R.H., Devidas S. and Mudduraj V.T., Antifungal and Cytotoxic Activity ofEverniastrum cirrhatum (Fr.) Hale, Chiang Mai J. Sci., 2012; 39(1): 76-83. |
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