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Press Release 08-159
Walnut Trees Emit Aspirin-Like Chemical to Deal With Stress

Discovery may help scientists better understand air quality, farm crops

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Person climbing special tower amid walnut trees.

Scientists used specially-equipped towers to measure chemical emissions from plants in a walnut grove in California.

Credit: Carlye Calvin, UCAR


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NCAR researcher Alex Guenther studies a chemical form of aspirin produced by walnut trees.

NCAR researcher Alex Guenther studies a chemical form of aspirin produced by walnut trees in California.

Credit: Carlye Calvin, UCAR


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