The activity of detoxifying enzymes in larvae of the locusts locusta migratoria l. the development of fungal infections of metarhizium anisopliae

Abstract

The analysis of the activity of nonspecific esterases and glutathione-S-transferase in homogenates of the whole body, lymph and fat body in larvae of the locusts Locusta migratoria L. the development of fungal infections of Metarhizium anisopliae (Metsch.) Sorokin. It is established that exposure to a lethal dose of the fungus (LC80), followed by stimulation of detoxifying enzymes in the homogenate of the whole body of larvae of L. migratoria on the third day after infection. It is shown that there is an increase of activity of nonspecific esterases and glutathione-S-transferase in the lymph and fat body of infected insects on day 3 of infection. By the sixth day of mycosis in the “hot” during the infection process in insects a decrease in enzyme activity to control values. Activation of components of the detoxification system in the initial phase of acute fungal infections may indicate involvement of detoxifying enzymes in the defense reactions of insects against fungal infection.