1. Laboratory of Microbiology, Department of Biomolecular Sciences, Wageningen Agricultural University, Hesselink van Suchtelenweg 4, 6703 CT Wageningen, The Netherlands
2. BCCM/LMG Culture Collection, University of Ghent, K.-L. Ledeganckstraat 35, B-9000 Ghent, Belgium
3. Laboratory of Microbiology, University of Ghent, K.-L. Ledeganckstraat 35, B-9000 Ghent, Belgium