Plant hormone in mammalian brain.Plant hormone plant hormone n. Any of various hormones produced by plants that control or regulate germination, growth, metabolism, or other physiological activities. Also called phytohormone. in mammalian brain Abscisic acid ab·scis·ic acid n. Abbr. ABA A plant hormone, C15H20O4, involved in the abscission of leaves, flowers, and fruits and the dormancy of buds and seeds. , a hormone made by mosses and vascular plants (Bot.) plants composed in part of vascular tissue, as all flowering plants and the higher cryptogamous plants, or those of the class See also: Vascular , 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 The Proceedings of the National Academy of Sciences of the United States of America, usually referred to as PNAS, is the official journal of the United States 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. |
|
||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion