Phytophthora_infestans
Estudiante de pregrado obtuvo el premio Frank L. Howard Fellowship

 

 

La estudiante de Biología y Microbiología Juliana Gonzalez Tobon, recibió el pasado 5 de febrero el reconocimiento Frank L. Howard Undergraduate Fellowship, por parte de la American Phytopathological Society, por su investigacion de la evaluación de ARNs pequeños no codificantes como posible mecanismo epigenético mediando el fenómeno de resistencia adquirida en Phytophthora infestans.

 

Phytophthora infestans, a plant pathogenic oomycete, is the causal agent of late blight disease of potatoes and tomatoes. This disease causes devastating economical losses each year and control is mainly achieved by the use of fungicides. Previous studies have reported that sensitive isolates to the phenylamide fungicide, mefenoxam, become tolerant after a single passage on mefenoxam-containing medium. The acquired resistance of the sensitive isolates appeared to have a cost on the rate of mycelial growth and declined slightly with subsequent culturing on medium free of mefenoxam. So far I have begun to investigate whether the same phenomenon is observed when exposing sensitive isolates of P. infestans to sublethal concentrations of fluopicolide and propamocarb, two systemic fungicides, with modes of action different to that of mefenoxam. The research proposal I am describing below seeks to elucidate whether the phenomenon of mefenoxam-acquired resistance may be explained by an epigenetic mechanism.

 

Más información:

Juliana  Gonzalez Tobon
j.gonzalez10@uniandes.edu.co

Giovanna   Danies Turano
Directora de la investigación
g-danies@uniandes.edu.co