1. Faculty of Science and Technology Libera Università di Bolzano, Piazza Università 5 Bolzano 39100 Italy
2. Department of Biology University of Padova, Via 8 Febbraio 1848, 2 Padova 35122 Italy
3. Department of Soil, Plant and Food Sciences University of Bari A. Moro, Piazza Umberto I Bari 70121 Italy
4. Technische Universität München, Lehrstuhl für Technische Mikrobiologie, Gregor Mendel Straße 4 Freising 85354 Germany