The effect of plant extracts on in vitro phytopathogenic fungal growth

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Published: Jul 5, 2013
Keywords:
bioplaguicides, crop extracts, antifungal activity

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Aida T. Rodríguez
Instituto Nacional de Ciencias Agrícolas

Abstract

Many botanical species show a regulatory action on a wide range of pests and diseases. This effect has been associated to the presence of a group of secondary metabolites at the different parts of plants. These substances provide them with a natural antimicrobial protection. So, the possibility to use these substances in the integrated pest management is studied in this paper. Hydroalcoholic plant extracts of Acacia farnesiana, Parthenium hysterophorus and Pluchea carlinensis were obtained. The corresponding qualitative chemical analysis was performed by a phytochemical screening and the antifungal effect of each extract was also determined on four phytopathogenic fungi by means of micelial growth inhibition percentage through time. Results showed that the three plant extracts have a high antifungal activity on Pyricularia grisea and Phytophthora parasitica var. nicotianae. Its effect on other fungi depends upon the kind of plant extract and evaluative time. Besides, all extracts proved to have renowned antimicrobially active metabolites in their chemical composition.

Article Details

How to Cite
Rodríguez, A. T. (2013). The effect of plant extracts on in vitro phytopathogenic fungal growth. Cultivos Tropicales, 21(2), 79–82. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/744
Issue
Vol. 21 No. 2 (2000)
Section
Original Article

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