Effects of widespread pesticide exposure on the gut microbiota of the spiny toad - B. spinosus
Résumé
With the raise of the first synthetic pesticides in the 1970s, concerns raised about their potential impact on the environment and on the biodiversity. The fate of these pesticides and their metabolites remains poorly studied, as well as the potential consequences they could have on non-target organisms.
This study aims to understand the impact of the pesticide nicosulfuron and of the main metabolite of glyphosate, AMPA, on the microbiota’s communities of the toad Bufo spinosus.
Due to their physiological features and their lifestyle, amphibians are the most likely to be affected by an exposition to low concentrations of pesticides. In this study, 79 spiny toads were exposed or not to sublethal concentrations of nicosulfuron and AMPA (1µg/L and 3µg/L respectively).
We performed a microbiota analysis on the stool of these toads using long-read sequencing on bacterial 16S rRNA gene and will present our preliminary results on this poster.