William A. Powell, MD, PhD, Director, Council on Biotechnology in Forestry, SUNY, Environmental Science and Forestry and Co-Director, New York State American Chestnut Research and Restoration Program
Much work has gone into attempting to bring back the American chestnut (Castanea dentata), decimated by the exotic chestnut blight fungus (Cryphonectria parasitica) beginning in the late 1800s. Breeding by crossing and back-crossing with Japanese and Chinese species has produced positive results, but genetic engineering is proving more viable.
William A. Powell, involved in transgenic research that has produced a tree that is 99.999% American chestnut, will speak about this work and the possibilities for reviving a species once ubiquitous in eastern North American forests.
Jamaica Plain, MA 02130
Sponsor(s): Arnold Arboretum of Harvard University
Cost: $10; Free for Arnold Arb. member and students