1. Agroécologie, AgroSup Dijon, CNRS, INRA; Univ. Bourgogne Franche-Comté, Pôle Interactions Plantes Microrganismes; Dijon cedex 21065 France
2. Department of Plant Anatomy; Eötvös Loránd University; Budapest H-1117 Hungary
3. Department of Molecular System Biology; University of Vienna; Vienna 1090 Austria
4. MicroMar, Mer, Molécules, Santé, UBL; Université du Maine; Le Mans Cedex 9 72085 France