Lingulodinium polyedrum Cells (IMAGE) University of California - San Diego Caption Cells of the dinoflagellate Lingulodinium polyedrum, collected at sea during a bloom in the summer of 2005, shows reddish areas signifying natural chlorophyll fluorescence, blue areas revealing DNA and green "dots" marking the cells of RCA cluster, bacteria implicated as a red tide killer. Credit Scripps Institution of Oceanography, UC San Diego 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.