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Revista Cubana de Farmacia

Print version ISSN 0034-7515On-line version ISSN 1561-2988

Abstract

MURILLO ARANGO, Walter; ACEVEDO RUIZ, José Miguel  and  PELAEZ JARAMILLO, Carlos Alberto. Fungicidal activity of Eucalyptus tereticornis essential oil on the pathogenic fungus Fusarium oxysporum. Rev Cubana Farm [online]. 2011, vol.45, n.2, pp.264-274. ISSN 0034-7515.

The objective of present paper was to determine the antifungal activity of the Eucalyptus tereticornis (Myrtaceae) essential oil and two fractions on the Fusarium oxysporum mushroom, a pathogen with clinical and agricultural significance. The total citronelal (44.8 %) and geraniol (9.78 %) essential oil had a fungicidal effect at a 3 g/L concentration and a fungicidal activity at small concentrations. The A and B fractions composed most of p-mentane-3,8-diol (18.95 %) and geraniol acetate (24.34 %), respectively were more active than the total extract. The observations at microscopic level showed damages and changes in hyphae and chlamydospores, as well as a decrease in the number of conidia. The observed fungicidal activity and the morphologic damages were dependent on the concentration.

Keywords : Eucalyptus tereticornis; Fusarium oxysporum; fungicidal activity; essential oils.

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