1. Department of Plant and Molecular Sciences, Göteborg University, Box 461, SE 405 30 Göteborg, Sweden
2. Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 181 Riia Street, 51014 Tartu, Estonia
3. Staatliches Weinbauinstitut, Merzhauser Straße 119, D-79100 Freiburg, Germany
4. Universität Kassel, FB 18 Naturwissenschaft, FG Ökologie, Heinrich-Plett-Straße 40, D-34132 Kassel, Germany
5. USDA Forest Service, Forest Products Laboratory, 1 Gifford Pinchot Drive, Madison, Wisconsin 53726
6. ECORC, Agriculture & Agri-Food Canada, CEF, Neatby Building, Ottawa, Ontario, K1A 0C6 Canada