Institution: | (1) Department of Plant Pathology, College of Agriculture, The University of Arizona, PO Box 210036, Tucson, AZ 85721, USA;(2) Present address: Departimento di Scienze Molecolari Agroalimentari, University of Milano, Italy;(3) Department of Plant Biology, University of California at Berkeley, 111 Koshland Hall, Berkeley, CA 94720, USA |