Fungicidal activity of Eucalyptus tereticornis essential oil on the pathogenic fungus Fusarium oxysporum

ABSTRACT: 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.

• Autores: Murillo Arango, Walter; Acevedo Ruíz, José Miguel; Peláez Jaramillo, Carlos Alberto
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2011
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: eng
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/28285
• Acceso en línea: http://hdl.handle.net/10495/28285
• Palabra clave: Fusarium oxysporum; Essences and essential oils; Eucalyptus tereticornis; Fungicidas; fungicides; http://aims.fao.org/aos/agrovoc/c_3146; http://id.loc.gov/authorities/subjects/sh85052586; http://id.loc.gov/authorities/subjects/sh85044920
• Rights: openAccess
• License: http://creativecommons.org/licenses/by-nc/2.5/co/