1. Department of Microbiology, University of Stellenbosch, Private Bag X1, Matieland, 7602, South Africa
2. Microbiology Group, Research Area Biochemical Technology, Institute of Chemical and Biological Engineering, Technische Universität Wien, Gumpendorferstrasse 1a, A1060, Vienna, Austria
3. Institute of Microbiology, University of Innsbruck, Technikerstraße 25, A-6020, Innsbruck, Austria
4. Department of Plant Pathology and Microbiology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel