A. Elizabeth "Betsy" Arnold is an American evolutionary biologist who is a Professor of Plant Sciences and Curator of the Robert L. Gilbertson Mycological Herbarium at the University of Arizona.
[1] She then moved to the University of Arizona for her doctoral studies, where she investigated fungal endophytes under the guidance of American botanist Lucinda A.
[1] After earning her doctorate Arnold returned to Duke University,[1] where she was awarded a National Science Foundation postdoctoral fellowship to work alongside François Lutzoni.
[1]Currently, she is a professor for the School of Plant Sciences and the Department of Ecology & Evolutionary Biology at the University of Arizona.
Arnold has studied these endophytes in trees, crop plants and shrubs in tropical rainforests and the arctic tundra.