Bidirectional Regulation of Biofilm Formation and Enhanced Denitrification by Designed AHL Engineered Bacteria

Exogenous addition of acyl homoserine lactones (AHLs) can enhance biofilm performance, albeit at a considerable cost. In this study, four genetically engineered microbes were developed, consisting of two quorum sensing (QS) strains and two quorum quenching (QQ) strains.