Louis Tisa, University of New Hampshire (IMAGE) University of New Hampshire Caption Louis Tisa, professor of molecular, cellular and biomedical sciences at UNH, in a plant growth chamber at the Institut de Recherche pour le Developpement in Montpellier, France, where he is collaborating on research that explores the symbiotic relationship between the bacteria. Credit Courtesy of Louis Tisa 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.