Mario Muscarella (IMAGE) University of Alaska Fairbanks Caption Mario Muscarella in his lab in the West Ridge Research Building at the University of Alaska Fairbanks. Muscarella's lab is broadly interested in the role of microorganisms in the environment and how environmental changes alter the structure and function of microbial communities. Credit Amy Loeffler Usage Restrictions None License Original 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.