Laboratory of Microbiology, Ghent University, Ghent, Belgium. Bram.Slabbinck@UGent.be|Laboratory of Microbiology, Ghent University, Ghent, Belgium. Bram.Slabbinck@UGent.be|Laboratory of Microbiology, Ghent University, Ghent, Belgium. Bram.Slabbinck@UGent.be|Laboratory of Microbiology, Ghent University, Ghent, Belgium. Bram.Slabbinck@UGent.be|Laboratory of Microbiology, Ghent University, Ghent, Belgium. Bram.Slabbinck@UGent.be