1. Division
of Soil and Water Management, KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium
2. Department
of Biology, University of Copenhagen, Universitetsparken 15, 2100 København, Denmark
3. Department
of Proteomics and Microbiology, Research Institute for Biosciences, University of Mons, Place du Parc 20, 7000 Mons, Belgium
4. Centre
of Microbial and Plant Genetics, KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium