José Adrian Perez-Robles, Carlos Alberto Lecona-Guzmán^*, Víctor Manuel Ruíz-Valdiviezo, Joaquín Adolfo Montes-Molina^*

Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2503-2518, 2023, DOI:10.32604/phyton.2023.029784 - 28 July 2023

Abstract The objective to this work was to evaluate the enzymatic activity in the culture of Solanum lycopersicum L. infected with Fusarium oxysporum after the combined application of Beauveria bassiana and plant extracts. Solanum lycopersicum plantlets were transplanted 15 days after the emergency. Five days after transplanting, Beauveria bassiana spores were applied at a concentration of 1 × 10⁷ spores mL⁻¹ onto soil (along with A. indica (N) and P. auritum (H) leaf extracts) where S. lycopersicum plants were planted. Eight days after transplanting, spores of F. oxysporum strain were applied at a concentration of 1 × 10⁶ spores mL⁻¹ to soil where S. lycopersicum plants were growing.… More >

Henry López-López¹, Nancy Ruiz-Lau², Rocío Meza-Gordillo¹, Víctor Manuel Ruiz-Valdiviezo¹, Joseph Galthier Robledo-Luchetti¹, Carlos Alberto Lecona-Guzmán¹, Juan José Villalobos-Maldonado¹, Luc Dendooven³, Joaquín Adolfo Montes-Molina^1,*

Phyton-International Journal of Experimental Botany, Vol.92, No.4, pp. 1235-1255, 2023, DOI:10.32604/phyton.2023.025716 - 06 January 2023

Abstract The objective of this work was to evaluate the effect of Beauveria bassiana (Bb 1205) on controlling Fusarium oxysporum f. sp. lycopersici (Fol 17108) in tomato plants in greenhouse conditions. Inoculation of Bb 1205 was the most promising among the agronomic variables and expression of the activity of the enzymes β-1,3-glucanases and chitinases. Inoculation of Bb 1205 occurred at a concentration of 1 × 10⁸ conidia·mL⁻¹, which was administered onto the leaves, directly into the soil and via injection. Infection with Fol 17108 occurred with 1 × 10⁶ spores·mL⁻¹, which were added directly to the soil. Spectrophotometry was used for measuring agronomic… More >