An Alternative Quorum-Sensing Mechanism (image) Princeton University Share Print E-Mail Caption Caption: Compared to a typical, or wild-type (WT) colony (left), P. aeruginosa cells lacking RhlR form a much more wrinkled biofilm (middle), while cells lacking RhlI form a biofilm that is abnormally smooth (right). Credit Mukherjee et al., 2017. Usage Restrictions Mukherjee et al., 2017. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.