December 21, 2009
Image of Pyrabactin 3D Image of Pyrabactin

Pyrabactin is a synthetic sulfonamide. Earlier this year, S. R. Cutler discovered that pyrabactin turns on the abscisic acid signaling pathway in Arabidopsis thaliana, a flowering plant used as a model organism in genetic studies. Its role as an abscisic acid mimic may make pyrabactin an important tool for protecting crops against drought and cold weather.

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