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• n  a plant hormone that promotes root formation and bud growth

• The major ones are "Auxin A," "Auxin B" and "Heteroauxin.

News & Articles

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• Plant biology discovery furthers scientists' understanding of plant growth and development
  ( University of California - Riverside ) UC Riverside plant cell biologists have discovered an 'auxin sensing and signaling complex' localized on the plant cell surface. Discovered by Charles Darwin, auxin is a plant hormone that controls nearly every aspect of plant growth and development. About a decade ago, an auxin sensing and signaling system had been discovered in the cell's nucleus; but ...
  March 13, 2014 - EurekAlert!
• Plant Cell Biology Discovery Furthers Scientists’ Understanding of Plant Growth and Development
  UC Riverside scientists discover auxin sensing and signaling complex on plant cell surface that explains why leaf epidermal cells have jigsaw puzzle-piece shapes.
  March 13, 2014 - UC Riverside

Quotes

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• John Brogden in Sydney Morning Herald
  The Auxin investigation will go down as the greatest bungle in the history of the NSW police force,Mr Brogden said.