Sunlight filtered through the overstory of a thick Pennsylvania forest and a few rays fell upon the long, serrated leaves of the American ... growing on the bark of chestnut trees there.

Called the 1,000 Chestnut Challenge ( nyrp.org/chestnut ), the project’s goal is to eventually establish 1,000 thriving ...

The fungus would grow in wounds in the tree bark, causing blisters ... By 1929, a healthy American chestnut became a rare sight. While the species is functionally extinct, its roots usually ...

The fungus would grow in wounds in the tree bark, causing blisters ... By 1929, a healthy American chestnut became a rare ...

The concepts, techniques, and gene cassettes we develop for the American chestnut will have broad applications in managing diseases affecting other important tree species such as Dutch-elm disease and ...