Fluorescence Microscopy Image (IMAGE) Helmholtz Centre for Environmental Research - UFZ Caption This fluorescence microscopy image shows Candidatus Argoarchaeum ethanivorans in magenta, and the sulfate-reducing bacteria in cyan. Credit © Niculina Musat / UFZ 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.