1. Dep. of Agricultural and Food Sciences Univ. of Bologna Viale G. Fanin 44 Bologna, Italy 40127
2. The Sainsbury Laboratory Univ. of East Anglia Norwich Research Park Norwich NR4 7UK UK
3. Laboratory of Bioinorganic Chemistry, Dep. of Pharmacy and Biotechnology Univ. of Bologna Via Belmeloro 6 Bologna, Italy 40126
4. Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Seeland, D
5. Biocomputing Group, Dep. of Pharmacy and Biotechnology Univ. of Bologna Via Belmeloro 6 Bologna, Italy 40126