Sulfur Bacteria (IMAGE) Max-Planck-Gesellschaft Caption The white filaments are sulfur bacteria (Beggiatioa) indicating the presence of sulphide. Credit Kai-Uwe Hinrichs 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.