Abstract

VIVOT, Eduardo P.  and  CRUANES, María J.. Antimicrobial and antiviral activities of extracts from several plant species present in Entre Ríos. Cienc. docencia tecnol. [online]. 2008, n.37, pp.177-189. ISSN 1851-1716.

The ethnobotanical background of many plants used as antiseptic present in the Province of Entre Rios (Argentina) facilitated the selection of someones pertaining to the vascular genres Myrcianthes pungens, Myrsine laetevirens, Tessaria integrifolia, Acanthospermum australe, Arctium minus y Polygonum punctatum. The plant extracts were tested in their antimicrobial activity through the diffusion tests against six bacterial and two fungal species. The antiviral activity against virus F (HSV-1) strain and Sabin (PV-1) was also tested. A fraction of the ethanol extracts of A. minus showed activity against Bacillus subtilis, Staphylococcus aureus and Micrococcus luteus. Two fractions of dichloromethane extracts of P. punctatum showed activity against B. subtilis and S. aureus. In the second division they showed no activity against B. subtilis, Micrococcus luteus and S. aureus. Concerning to antifungal activity, the first two fractions were active against A. niger and C. albicans. Preliminary results show antiviral activity of T. integrifolia extracts. The results achieved justify future studies.

Keywords : Ethnobotany; Medicinal plants; Antifungal activity; Antibacterial activity; Entre Rios.

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