Physiological Responses of Serratia marcescens to Magnetic Biochars and Coexisting Microplastics and the Relationships with Antibiotic Resistance Genes.

ABSTRACT: Magnetic biochars (MBCs) have been shown to inhibit the horizontal transfer of antibiotic resistance genes (ARGs) in soils, both with and without microplastics (MPs); however, the underlying molecular biological mechanisms remain unclear. This study examined the effects of MBCs and coexisting polybutylene adipate terephthalate microplastics (PBAT MPs) on the physiological characteristics of Serratia marcescens ZY01 (a host strain carrying the tet gene) and further investigated their relationships with the absolute abundance of the tet gene in soil. The results demonstrated that MBCs promoted prodigiosin synthesis in Serratia marcescens ZY01 by mediating the electron transfer process, the effect of which was further enhanced in the presence of PBAT MPs. In treatm

SUBMITTER: Zhang G 

PROVIDER: S-EPMC12845968 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature