1. Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Science Unit , Brusselsesteenweg 370, 9090 Melle, Belgium
2. Centre of Microbial and Plant Genetics (CMPG), Department of Microbial and Molecular Systems, KU Leuven , Kasteelpark Arenberg 20, 3001 Leuven, Belgium
3. Section of Microbiology, Department of Biology, University of Copenhagen , Universitetsparken 15, 2100 Copenhagen, Denmark
4. Ghent University, Department of Pathobiology, Pharmacology and Zoological Medicine , Salisburylaan 133, B-9820 Merelbeke, Belgium