Dr. Subahdeep Chatterjee’s group discovered reversible non-genetic heterogeneity in bacterial social communication systems that coordinate virulence and lifestyle transitions during plant disease.  The fundamental findings have implications for bacterial disease management, including those of medical importance, and they give key insights on microbial evolution. Dr.Chatterjee is studying the dynamics of cell-cell signaling (quorum sensing) in bacteria to understand how a single cell in a population integrates QS-signals and performs social behavior.