[1] Julius Kuhn Inst, Inst Epidemiol & Pathogen Diagnost, Fed Res Ctr Cultivated Plants, D-38104 Braunschweig, Germany
[2] Julius Kuhn Inst, Inst Plant Protect Hort & Forests, Fed Res Ctr Cultivated Plants, D-38104 Braunschweig, Germany
[3] Leibniz Inst DSMZ German Collect Microorganisms &, D-38124 Braunschweig, Germany
[4] Braunschweig Univ Technol, Microbiol, D-38106 Braunschweig, Germany