1. Department of Cell and Molecular Biology, Science for Life Laboratory, Uppsala University, SE-75123 Uppsala, Sweden.
2. Laboratory of Microbiology, Department of Agrotechnology and Food Sciences, Wageningen University, 6708 WE Wageningen, Netherlands.
3. Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, SE-75007 Uppsala, Sweden.
4. Unité d’Ecologie, Systématique et Evolution, CNRS, Université Paris-Sud, Orsay, France.
5. Department of Earth Science, Centre for Deep Sea Research, University of Bergen, N-5020 Bergen, Norway.
6. Department of Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, and Utrecht University, NL-1790 AB Den Burg, Netherlands.