ZIFL1.1 transporter modulates polar auxin transport by stabilizing membrane abundance of multiple PINs in Arabidopsis root tip

E. Remy, P. Baster, J. Friml, P. Duque, Plant Signaling & Behavior 8 (2013).


Journal Article | Published | English
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Abstract
Cell-to-cell directional flow of the phytohormone auxin is primarily established by polar localization of the PIN auxin transporters, a process tightly regulated at multiple levels by auxin itself. We recently reported that, in the context of strong auxin flows, activity of the vacuolar ZIFL1.1 transporter is required for fine-tuning of polar auxin transport rates in the Arabidopsis root. In particular, ZIFL1.1 function protects plasma-membrane stability of the PIN2 carrier in epidermal root tip cells under conditions normally triggering PIN2 degradation. Here, we show that ZIFL1.1 activity at the root tip also promotes PIN1 plasma-membrane abundance in central cylinder cells, thus supporting the notion that ZIFL1.1 acts as a general positive modulator of polar auxin transport in roots.
Publishing Year
Date Published
2013-07-10
Journal Title
Plant Signaling & Behavior
Volume
8
Issue
10
Article Number
e25688
IST-REx-ID

Cite this

Remy E, Baster P, Friml J, Duque P. ZIFL1.1 transporter modulates polar auxin transport by stabilizing membrane abundance of multiple PINs in Arabidopsis root tip. Plant Signaling & Behavior. 2013;8(10). doi:10.4161/psb.25688
Remy, E., Baster, P., Friml, J., & Duque, P. (2013). ZIFL1.1 transporter modulates polar auxin transport by stabilizing membrane abundance of multiple PINs in Arabidopsis root tip. Plant Signaling & Behavior, 8(10). https://doi.org/10.4161/psb.25688
Remy, Estelle, Pawel Baster, Jirí Friml, and Paula Duque. “ZIFL1.1 Transporter Modulates Polar Auxin Transport by Stabilizing Membrane Abundance of Multiple PINs in Arabidopsis Root Tip.” Plant Signaling & Behavior 8, no. 10 (2013). https://doi.org/10.4161/psb.25688.
E. Remy, P. Baster, J. Friml, and P. Duque, “ZIFL1.1 transporter modulates polar auxin transport by stabilizing membrane abundance of multiple PINs in Arabidopsis root tip,” Plant Signaling & Behavior, vol. 8, no. 10, 2013.
Remy E, Baster P, Friml J, Duque P. 2013. ZIFL1.1 transporter modulates polar auxin transport by stabilizing membrane abundance of multiple PINs in Arabidopsis root tip. Plant Signaling & Behavior. 8(10).
Remy, Estelle, et al. “ZIFL1.1 Transporter Modulates Polar Auxin Transport by Stabilizing Membrane Abundance of Multiple PINs in Arabidopsis Root Tip.” Plant Signaling & Behavior, vol. 8, no. 10, e25688, Landes Bioscience, 2013, doi:10.4161/psb.25688.

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PMID: 23857365
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