How strange that I should come across this article so soon after finishing Barbara Kingsolver’s Prodigal Summer.
A century after blight began to bring down the majestic American chestnut tree, once known as the “redwood of the East,” scientists are tantalizingly close to reviving it.
Within a few years, using both traditional plant breeding and genetic engineering, researchers hope to have a variety of blight-resistant chestnuts to repopulate the tree’s native range.
If they succeed, the towering species that once accounted for one out of every four trees from Maine to Mississippi will be back, benefiting wildlife and humans alike.
My favorite bit:
He said the tree’s wood — amber-colored and extremely rot-resistant — is perfect for utility poles, fence posts, shingles and other exposed woodwork.
“If the chestnut was still around, everyone’s deck would be built out of its wood. We might not even need treated wood,” Powell said.
Imagine that.
Despite the American chestnut’s collapse, scientists and tree breeders refuse to write it off. They’ve been working for decades on blight-resistant varieties through several strategies.
By 2006, the American Chestnut Foundation hopes to have a hardy American-Chinese hybrid that has the height and shape of the native tree with the blight-resistance of the Chinese variety.
In another breeding campaign, researchers are interbreeding American chestnuts that have survived blight, trying to create tougher trees.
“It’s a slow process because it’s a tree, not a corn plant,” said Gary Griffin, a plant pathologist at Virginia Tech University in Blacksburg, Va.
To speed things up, plant geneticists are working to create a blight-free tree by inserting fungal resistance genes from other plants directly into the chestnut trees.
Genetic engineering. Hmm…
In the book Prodigal Summer one of the characters is trying to restore the American Chestnut by creating a hybrid with the Chinese Chestnut. He’s old and sad that he’s not sure if anyone will cary on his work when he is gone.
The book also talks about the foolishness of men in the matter saying that as the trees were dying people rushed to chop the remaining healthy ones down for their good wood before it was all lost to the blight. As a result, even those few trees that might have survived the blight were killed for the most part. If not for that, according to the book, it is possible that enough naturally resitant trees might have survived that the species would have returned eventually.
