1. Department of Plant Protection Biology; Swedish University of Agricultural Sciences; PO Box 102 Alnarp SE-230 53 Sweden
2. In vitro Plant-tech AB; %Alnarp Innovation Inkubator; Slottsvägen 1 Alnarp SE-230 53 Sweden
3. Southern Swedish Forest Research Centre; Swedish University of Agricultural Sciences; PO Box 49 Alnarp SE-230 53 Sweden