• picture
  • picture
  • picture
  • picture
Public Radio's Environmental News Magazine (follow us on Google News)

Emerging Science Note/Planting the Seed

Air Date: Week of

Living on Earth’s Jennifer Chu reports on research that may eventually lead to customized tree stands.


CURWOOD: It’s Living on Earth, I’m Steve Curwood. Coming up…the use of mercury in cultural rituals. First, this Note on Emerging Science from Jennifer Chu.


CHU: Picture row upon row of hardwood trees planted for the sole purpose of becoming furniture. Or trees perfect for paper production. These genetically-engineered “trees of the future” may not be that far off. Scientists have now figured out a way to quickly identify the genes that control specific traits in poplar trees.

To get the perfect flower color or the meatiest apple, growers mate parent plants that hold desirable traits. But there’s no guarantee the pairing will pay off. And because of the long life-span of trees, it could take decades to complete a test cycle.

But with the new approach scientists can see results in about a year. Researchers randomly inserted foreign pieces of DNA into the poplar genome. This infiltrator exactly mimics the expression pattern of a poplar gene which, in turn, provides clues about that gene’s function.

For example, one scientist hopes to grow trees the way we grow houseplants – by taking a cutting, putting it in water, and having it take root. He’s identified 35 out of the poplar’s 36,000 genes that likely play a role in root formation. Next, he’ll try to transfer a houseplant’s genes into the poplar genome to see if he can get an entire poplar tree to take root in water.

That’s this week’s Note on Emerging Science, I’m Jennifer Chu.




Living on Earth wants to hear from you!

Living on Earth
62 Calef Highway, Suite 212
Lee, NH 03861
Telephone: 617-287-4121
E-mail: comments@loe.org

Newsletter [Click here]

Donate to Living on Earth!
Living on Earth is an independent media program and relies entirely on contributions from listeners and institutions supporting public service. Please donate now to preserve an independent environmental voice.

Living on Earth offers a weekly delivery of the show's rundown to your mailbox. Sign up for our newsletter today!

Sailors For The Sea: Be the change you want to sea.

The Grantham Foundation for the Protection of the Environment: Committed to protecting and improving the health of the global environment.

Contribute to Living on Earth and receive, as our gift to you, an archival print of one of Mark Seth Lender's extraordinary wildlife photographs. Follow the link to see Mark's current collection of photographs.

Buy a signed copy of Mark Seth Lender's book Smeagull the Seagull & support Living on Earth