Our research involves multiple aspects of molecular microbiology including quorum sensing (QS), virulence in bacterial pathogens, regulation and biosynthesis of antibiotics and other secondary metabolites, protein secretion systems, gas vesicles and flotation, bacteriophages, toxin-antitoxin systems and anti-viral abortive infection. We work on various Gram-negative enterobacteria, including the phytopathogens, Erwinia (Pectobacterium) and Dickeya, Serratia species (which can be opportunistic human pathogens) Citrobacter rodentium (the murine pathogen), Yersinia and a spectrum of phages infecting bacteria of medical, agricultural or industrial biotechnology interest (including Pseudomonas and Streptomyces).