1. Group for Aquatic Microbial Ecology, Department of Chemistry, Environmental Microbiology and Biotechnology, University of Duisburg-Essen, Essen, Germany
2. Institute of Molecular Genetics, National Research Center Kurchatov Institute, Moscow, Russia
3. Skolkovo Institute of Science and Technology, Moscow, Russia
4. Centre of Water and Environmental Research, University of Duisburg-Essen, Essen, Germany