Resumen

GAONA DUARTE, Vicente Gabriel et al. Growth and tolerance of Trichoderma asperelloides TF5 in potato dextrose agar (PDA) at different concentrations of cypermethrin. Investig. estud. UNA [online]. 2025, vol.16, n.1, pp.4-14. ISSN 2070-0415.  https://doi.org/10.18004/rdgic.investig.estud.una.2025.junio.2916014634.

The continuous and excessive use of pyrethroid insecticides has generated numerous environmental and public health problems, making their removal from the environment a topic of interest. Biological resources such as microorganisms or enzymes, with the ability to degrade or eliminate pesticides, have become a powerful tool for the remediation of environments contaminated with these compounds. The objective of this research was to evaluate the tolerance of Trichoderma asperelloides TF5 to various concentrations of cypermethrin and to analyze its potential for use in bioremediation. For the study, a solid culture medium (PDA) with cypermethrin concentrations of 10, 100, 200, 500, 1000, and 2000 mg/L was used. Mycelial growth and the percentage of growth inhibition of Trichoderma were evaluated as a function of the different concentrations. The results demonstrated, based on a linear regression graph, that 50% inhibition of mycelial growth is achieved with a concentration of 1150 mg/L, a concentration comparable to that used in the field. Therefore, Trichoderma asperelloides TF5, due to its demonstrated tolerance, shows promising potential for application in bioremediation processes.

Palabras clave : insecticide; pyrethroid; tolerance; bioremediation; mycoremediation.

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