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Advances in abscission signaling

View ORCID ProfileO. Rahul Patharkar, View ORCID ProfileJohn C. Walker
doi: https://doi.org/10.1101/122168
O. Rahul Patharkar
Division of Biological Sciences and Interdisciplinary Plant Group, University of Missouri, Columbia, Missouri 65211
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  • ORCID record for O. Rahul Patharkar
  • For correspondence: rpatharkar@gmail.com WalkerJ@missouri.edu
John C. Walker
Division of Biological Sciences and Interdisciplinary Plant Group, University of Missouri, Columbia, Missouri 65211
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  • For correspondence: rpatharkar@gmail.com WalkerJ@missouri.edu
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Abstract

Abscission is a process in plants for shedding unwanted organs such as leaves, flowers, fruits, or floral organs. Shedding of leaves in the fall is the most visually obvious display of abscission in nature. The very shape plants take is forged by the processes of growth and abscission. Mankind manipulates abscission in modern agriculture to do things like prevent pre-harvest fruit drop prior to mechanical harvesting in fruit orchards. Abscission occurs specifically at abscission zones that are laid down as the organ that will one day abscise is developed. A sophisticated signaling network initiates abscission when it is time to shed the unwanted organ. In this article, we review recent advances in understanding the signaling mechanisms that activate abscission. Physiological advances and roles for hormones in abscission are also addressed. Finally, we discuss current avenues for basic abscission research and potentially lucrative future directions for its application to modern agriculture.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-ND 4.0 International license.
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Posted March 29, 2017.
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Advances in abscission signaling
O. Rahul Patharkar, John C. Walker
bioRxiv 122168; doi: https://doi.org/10.1101/122168
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Advances in abscission signaling
O. Rahul Patharkar, John C. Walker
bioRxiv 122168; doi: https://doi.org/10.1101/122168

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