ESTUDIO DE LA ACTIVIDAD ANTIFÚNGICA DE DIFERENTES DERIVADOS ANILINOPIRIMIDÍNICOS.
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2020-10-13
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Jaén: Universidad de Jaén
Resumen
Enfermedades causadas por hongos fitopatógenos reducen el rendimiento de los cultivos a la vez que causan importantes pérdidas económicas. La resolución más efectiva de estas enfermedades necesita el empleo de agroquímicos, pudiendo ser tóxicos en exceso para el hombre y el medio ambiente. Por ende, es necesaria la búsqueda de alternativas eficientes y respetuosas con la naturaleza para su control. Este estudio evaluó la actividad de seis derivados pirimidínicos (4i-j, 6i-k y 6m) sobre cinco hongos fitopatógenos (Fusarium oxysporum, Rhizopus sp., Pseudocercospora cladosporioides y aislados de Verticillium dahliae). También se determinó el efecto antifúngico del derivado con mayor efectividad a distintas concentraciones y, finalmente, se estudió la toxicidad de todos los principios activos ensayados sobre la germinación y crecimiento de semillas de Lactuca sativa. Todas las materias activas presentaron capacidad inhibitoria del crecimiento fúngico, siendo 4i la más eficaz.
Diseases caused by phytopathogenic fungi reduce crop yields while causing significant economic losses. The most effective resolution of these diseases requires the use of agrochemicals, which can be excessively toxic to humans and the environment. Therefore, it is necessary to search for efficient and nature-friendly alternatives for their control. This study evaluated the activity of six pyrimidine derivatives (4i-j, 6i-k and 6m) on five phytopathogenic fungi (Fusarium oxysporum, Rhizopus sp., Pseudocercospora cladosporioides and isolates of Verticillium dahliae). Moreover, the antifungal effect of the derivative more effective was determined to be at different concentrations and, finally, the toxicity of all the active ingredients tested on the germination and growth of Lactuca sativa seeds was studied. Every active ingredient showed an inhibitory capacity of the fungal growth, being 4i the most effective one.
Diseases caused by phytopathogenic fungi reduce crop yields while causing significant economic losses. The most effective resolution of these diseases requires the use of agrochemicals, which can be excessively toxic to humans and the environment. Therefore, it is necessary to search for efficient and nature-friendly alternatives for their control. This study evaluated the activity of six pyrimidine derivatives (4i-j, 6i-k and 6m) on five phytopathogenic fungi (Fusarium oxysporum, Rhizopus sp., Pseudocercospora cladosporioides and isolates of Verticillium dahliae). Moreover, the antifungal effect of the derivative more effective was determined to be at different concentrations and, finally, the toxicity of all the active ingredients tested on the germination and growth of Lactuca sativa seeds was studied. Every active ingredient showed an inhibitory capacity of the fungal growth, being 4i the most effective one.