Anaerobic methanotrophs (IMAGE) Virginia Tech Caption Micrographs of two different cultures of anaerobic methanotrophs showing the cells (amber colored) clumped together with black deposits consisting of amorphous carbon surrounding the cells. Credit Gunter Wegener Usage Restrictions No restrictions. License Public Domain 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.