Fluorescence Microscopy of a Bacterium (IMAGE) Max-Planck-Gesellschaft Caption This is a Bacillus subtilis cell with several patches of Mbl (MreB-like protein) fused to the green fluorescent protein. Colors represent overlay of images taken by total internal reflection fluorescence microscopy (TIRFM, red), epifluorescence (green) and transmitted light (blue, indicates cell outline). Credit Roland Wedlich-Söldner / Copyright: MPI for Biochemistry 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.