Chitosan suppresses the dissemination of antibiotic resistance genes exacerbated by fungicide in the soil-earthworm system
he objectives of this study were (1) to study the dissipation behaviors of MET in soil and accumulation of MET in earthworm gut after application of CHI, (2) to investigate the effects of MET and CHI on soil and earthworm gut resistome, and (3) to track changes in microbial communities, with a focus on ARG hosts, especially pathogens, when exposed to MET and CHI. This study broadens our understanding of the potential ecological risks associated with fungicides and provides novel insights into controlling fungicide residues and ARG pollution in soil and soil fauna.