News From the Field
At Long Last, How Plants Make Eggs
June 4, 2009
Scientists at the University of California, Davis, have discovered that a plant hormone called auxin is responsible for development of the egg cell in a plant's embryo sac. In unraveling this fundamental issue in plant biology, the work provides the first definitive report of a plant hormone acting as a morphogen and offers tantalizing new insights into the evolutionary pathway that flowering plants took 135 million years ago when they split off from gymnosperms.
University of California, Davis
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