Beautiful <I>Bacillus subtilis</I> Colony (IMAGE) Harvard University Caption This is a top view of a Bacillus subtilis colony in conditions where extracellular matrix is produced, leading to biofilm formation. Credit Hera Vlamakis, Harvard School of Engineering and Applied Sciences Usage Restrictions None License Licensed 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.