Bacterial Lawns (IMAGE) Center for Genomic Regulation Caption Bacterial lawns display green fluorescent ring ("circular stripe," left) as a function of a chemical gradients from central paper disks (white) or an anti-ring ("circular anti-stripe," right). Credit CRG 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.