Plant hormone in mammalian brain.
Plant hormone in mammalian brain
Abscisic acid, a hormone made by mosses and vascular plants, has been identified in rat and pig brains. In the plants, the acid regulates a great number of processes, including seed dormancy, stress resistance and aging. Now M.-Th. Le Page-Degivry and colleagues at the University of Nice in France have isolated this hormone from brains and demonstrated that, when applied to plant surface pores, it has the same activity as the plant hormone. They further report in the February (No. 4) PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES that the brain abscisic acid does not seem to be a consequence of a diet containing abscisic acid. The role of the hormone in the brain is currently under investigation.