Evaluación del contenido de clorofila y la estabilidad de la membrana bajo estrés oxidativo inducido por el herbicida glifosato como indicadores de tolerancia a la sequía en algunas líneas avanzadas de trigo duro (Triticum durum L.): estudio in vitro

Palabras clave: fuga de electrolitos, pérdida de clorofila, tolerancia, sensibilidad

Resumen

El estrés oxidativo causado por el glifosato es un fenómeno químico y fisiológico complejo y se desarrolla como resultado de la sobre producción y acumulación de especies reactivas del oxígeno (ROS). Este estudio se llevó a cabo in vitro en el Instituto Nacional de Investigación Agronómica de Argelia (INRAA) Setif, para seleccionar el trigo duro (Triticum durum L.) más susceptible bajo estrés oxidativo inducido por el herbicida glifosato mediante la evaluación de la degradación del contenido de clorofila y la fuga de la membrana celular. Los genotipos mostraron variaciones significativas en casi todos los rasgos estudiados. El índice de pérdida de clorofila osciló entre el 26,42 % del genotipo G5 y el 48,75 % de la variedad local Boutaleb, y los valores del índice de sensibilidad al glifosato se situaron entre 0,65 y 1,2. La línea avanzada G5 resultó ser la más tolerante al estrés oxidativo, con el menor índice de pérdida de clorofila y el menor índice de sensibilidad al glifosato. Además, la línea avanzada G4 registró la mayor pérdida de electrolitos (80,16 %), mientras que G6 mostró la estimación más baja (50,77 %). Por lo tanto, las líneas avanzadas G5 y G6 parecen las más adecuadas para las condiciones de crecimiento.

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Publicado
2023-02-04
Cómo citar
Benkadja, S., Oulmi, A., Frih, B., Bendada, H., Guendouz, A., & Benmahammed, A. (2023). Evaluación del contenido de clorofila y la estabilidad de la membrana bajo estrés oxidativo inducido por el herbicida glifosato como indicadores de tolerancia a la sequía en algunas líneas avanzadas de trigo duro (Triticum durum L.): estudio in vitro. Revista De La Facultad De Agronomía De La Universidad Del Zulia, 40(1), e234007. Recuperado a partir de https://produccioncientificaluz.org/index.php/agronomia/article/view/39652
Sección
Producción Vegetal