Biofilm stripe patterns (IMAGE) University of California - San Diego Caption UC San Diego researchers found that Bacillus subtilis, a bacterium found in soil, creates concentric rings reminiscent of developmental “stripes” created by a segmentation clock. The researchers discovered that bacterial biofilms use a clock-and-wavefront process for cell patterning similar to plants and animals. Credit Kwang-Tao Chou. Usage Restrictions Must be used in conjunction with Cell paper on biofilm patterns discovery. 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.