1. Laboratory of Microbiology, Department of Biochemistry and Microbiology, Ghent University, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
2. Phycology Research Group, Department of Biology, Ghent University, Krijgslaan 281 (S8), 9000 Ghent, Belgium
3. School of Botany, University of Melbourne, Melbourne, Victoria 3010, Australia