Abstract
1Laboratorium voor Microbiologie en Microbiële Genetica, Rijksuniversiteit, Ledeganckstraat 35, B-9000 Ghent, Belgium
2Department of Plant Pathology, International Rice Research Institute, Manila, The Philippines
3Department of Plant Pathology, University of California, Berkeley, California 94720
4Department of Microbiology, New York University Medical School, New York, New York 10016
5ADAS Central Science Laboratory, Ministry of Agriculture, Fisheries and Food, Hatching Green, Harpenden AL5 2BD. Great Britain
6Agricultural Research Service, United States Department of Agriculture, Beltsville, Maryland 20705
7Department of Microbiology, University of Queensland, St. Lucia 4067, Brisbane, Queensland, Australia
8Laboratoire de Phytopathologie, UniversitÉ Catholique de Louvain, B-1348 Louvainla-Neuve, Belgium
9Department of Plant Pathology, University of Florida, Gainesville, Florida 32611
10Department of Plant Pathology, University of Nebraska, Lincoln, Nebraska 68583-0722
11Commonwealth Mycological Institute, Kew, Surrey TW9 3AF, Great Britain