Abstract
1 Laboratory of Microbiology, Department of Biochemistry, Physiology and Microbiology, Faculty of Sciences, University of Ghent, K. L. Ledeganckstraat 35, 9000 Gent, Belgium
2 Department of Pathology, Bacteriology and Poultry Diseases, Faculty of Veterinary Medicine, University of Ghent, Salisburylaan 133, 9820 Merelbeke, Belgium
3 DSMZ German Collection of Microorganisms and Cell Cultures, Mascheroder Weg 1b, 38140 Braunschweig, Germany