ANTIMICROBIAL STUDIES ON DRYNARIA QUERCIFOLIA (L.) J. Sm. LEAF AND RHIZOME EXTRACT

Author(s): K.K.Seena and V.T.Valsamma

Abstract: The results of the preliminary screening experiments proved that Drynaria quercifolia (L.) J. Sm., exhibited considerable antibacterial activity. The plant was selected for detailed study because, the plant had been ethnobotanically relevant, non-toxic, easily available and a widely spread vegetation. A single species for the genus Drynaria was reported according to the biodiversity documentation of Kerala, Pteridophyes by (Easa, 2003). The acetone extract of Drynaria rhizomes shows anti-bacterial property against Vibrio cholerae and antifungal property against Aspergillus sp. The acetone extract of rhizome indicates anti-bacterial property by producing maximum zone of inhibition by 3 cm in diameter. The water extract of rhizome shows negative result with absence of anti-bacterial property. The acetone extract of leaf was less when compared with rhizome extract. The anti-fungal activity of Drynaria rhizome was also high in acetone extract than in water extract. The rhizome extract prevented the fungal growth. The rhizome can use effectively for preventing the growth of the fungus than the leaf because the extract shows less anti-fungal property. So the present study clearly indicates the anti-microbial efficiency of rhizome and leaf extract of Drynaria quercifolia (L.) J. Sm.

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