Affiliation: | (1) Laboratoire de Biologie Cellulaire, Institut National de la Recherche Agronomique – INRA, 78026 Versailles, France;(2) Present address: Department of Biology, Coker Hall, CB#3280, University of North Carolina, Chapel Hill, NC 27599-3280, USA;(3) Present address: Unité de Physiologie Microbienne, Institut Pasteur, 28 rue du Docteur Roux, 75724 Paris, France |