Affiliation: | (1) Present address: Stine Biotechnology, ISU Research Park, Suite 611, Ames, IA 50010, USA;(2) Present address: Department of Biology, University of Michigan, Ann Arbor, MI 48109, USA;(3) Present address: SUGEN, Redwood City, CA 94305, USA;(4) Department of Botany, Iowa State University, Bessey Hall, Ames, IA 50011, USA;(5) Present address: Department of Botany, University of Colombo, Colombo, Sri Lanka |