Alteraciones bioquímicas en hojas de maíz expuestas a herbivoría de Spodoptera frugiperda (Lepidoptera: Noctuidae) y tratadas con diluciones altamente dinamizadas
DOI:
https://doi.org/10.33240/rba.v21i1.58984Palabras clave:
Homeopatía, Cogollero, Inducción de resistencia, NosodeResumen
La oruga Spodoptera frugiperda provoca pérdidas significativas en la producción de biomasa y de granos de maíz. Altas diluciones dinamizadas pueden actuar como sustancias inductoras de resistencia de las plantas a los insectos. Este estudio evaluó las alteraciones bioquímicas en hojas de maíz tratadas con altas diluciones dinamizadas preparadas con la oruga S. frugiperda en las potencias 6, 12, 15 y 18 CH (Centesimal Hahnemanniana) y expuestas a la herbivoría de S. frugiperda. Las plantas de maíz recibieron los tratamientos vía riego y, en el estadio V3 (tres hojas), fueron infestadas con orugas de 4º instar. Las hojas se recolectaron antes y después de la herbivoría para la evaluación de proteína, de la enzima guaiacol peroxidasa (POD) y de la fenilalanina amonio-liasa (FAL). A los siete días tras el inicio de la herbivoría, las plantas que recibieron los tratamientos mostraron aumento en la concentración de proteínas y en la actividad de la POD. Así, se observó que las diluciones dinamizadas de orugas de S. frugiperda contribuyen a la inducción de la resistencia de las plantas de maíz y, en consecuencia, a la reducción de los daños causados por S. frugiperda.
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