Bladder Wrack (IMAGE) Helmholtz Centre for Ocean Research Kiel (GEOMAR) Caption Baltic Sea seaweed Fucus vesiculosus and its fungal symbiont were investigated in this study. Credit Larissa Büdenbender Usage Restrictions in the context of this press release only. 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.