Short communication: Ascorbyl/ascorbate ratio as a marker of oxidative stress in larvae (Apis mellifera) exposed to Paenibacillus larvae

This study aimed to assess the oxidative stress levels in larvae exposed to three different strains of P. larvae through their diet by examining the ascorbyl radical (A) to ascorbate anion (AH¯) ratio. The results revealed that larvae inoculated with P. larvae exhibited a lower value of this index compared to uninoculated ones. Interestingly, the level of A remained constant, while the concentration of AH¯ increased. Said increase correlated with the virulence of the specific P. larvae strain used in the inoculation. These findings suggest a potential link between AH¯ molecules and a defense response in A. mellifera larvae against infection, consistent with their resistance to P. larvae (LD50).PMID:37640200 | DOI:10.1016/j.cbpb.2023.110896

Source: Comparative biochemistry and physiology. Part B, Biochemistry and molecular biology. - August 28, 2023 Category: Biochemistry Authors: Mar ía de la Paz Moliné Matias E Aguirre Enzo Dom ínguez Paloma Moran Giardini Natalia J Fern ández Natalia Damiani M Sandra Churio Liesel B Gende Source Type: research