1. Centre of Biological Engineering, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
2. Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
3. Institute for Environmental Biotechnology, University of Natural Resources and Life Sciences, Vienna, A-3430 Tulln, Austria