1. IASMA Research Center; San Michele all'Adige Italy
2. UMR 1259 (GenHort)-INRA/INH/UA; Beaucouze France
3. USDA-ARS, Appalachian Fruit Research Station; Kearneysville WV USA
4. Branch of Shemyakin Institute of Bioorganic Chemistry; Pushchino Russia
5. Cornell University; Department of Plant Pathology; Geneva NY USA