1. Department
of Viticulture and Oenology, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
2. Agricultural Institute of Slovenia, Central Laboratories, Hacquetova ulica 17, 1000 Ljubljana, Slovenia
3. National
Wine and Grape Industry Centre, Charles Sturt University, Locked Bag 588, Wagga Wagga, New South Wales 2678, Australia
4. Escola
Superior de Biotecnologia, Universidade Católica Portuguesa, 4200-072 Porto, Portugal