Sink-Source TM7x (IMAGE) Forsyth Institute Caption This image shows the "sink-source" dynamic between host bacterium (Schaalia odontolytica XH001) and lytic phage LC001. This dynamic is caused by the co-existence of phage-sensitive XH001 and the phage-resistant XH001 subpopulation, which forms episymbiosis with the nanosized TM7x. Credit Credit: Xuesong He, PhD, DDS/ ADA Forsyth Institute Usage Restrictions No restriction License Original content 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.