Polar PIN Localization Directs Auxin Flow in Plants
University of Applied Sciences Utrecht · Utrecht University · +3 more institutions
Abstract
Polar flow of the phytohormone auxin requires plasma membrane-associated PIN proteins and underlies multiple developmental processes in plants. Here we address the importance of the polarity of subcellular PIN localization for the directionality of auxin transport in Arabidopsis thaliana. Expression of different PINs in the root epidermis revealed the importance of PIN polar positions for directional auxin flow and root gravitropic growth. Interfering with sequence-embedded polarity signals directly demonstrates that PIN polarity is a primary factor in determining the direction of auxin flow in meristematic tissues. This finding provides a crucial piece in the puzzle of how auxin flow can be redirected via…
Citation impact
- FWCI
- 59.90
- Percentile
- 100%
- References
- 7
Authors
10- JWJustyna WiśniewskaCorresponding
University of Applied Sciences Utrecht, Utrecht University, Czech Academy of Sciences, Institute of Biotechnology, Bernstein Center for Computational Neuroscience Tübingen, University of Tübingen
- JXJian Xu
University of Applied Sciences Utrecht, Utrecht University, Czech Academy of Sciences, Institute of Biotechnology, Bernstein Center for Computational Neuroscience Tübingen, University of Tübingen
- DSDaniela Seifertová
University of Applied Sciences Utrecht, Utrecht University, Czech Academy of Sciences, Institute of Biotechnology, Bernstein Center for Computational Neuroscience Tübingen, University of Tübingen
- PBPhilip B. Brewer
University of Applied Sciences Utrecht, Utrecht University, Czech Academy of Sciences, Institute of Biotechnology, Bernstein Center for Computational Neuroscience Tübingen, University of Tübingen
- KRKamil Růžička
University of Applied Sciences Utrecht, Utrecht University, Czech Academy of Sciences, Institute of Biotechnology, Bernstein Center for Computational Neuroscience Tübingen, University of Tübingen
Topics & keywords
- Auxin
- Polarity (international relations)
- Meristem
- Cell polarity
- Arabidopsis thaliana
- Cell biology
- Arabidopsis
- Polar auxin transport