Prototype cell-to-cell auxin transport mechanism by intracellular auxin compartmentalization

K.T. Wabnik, J. Kleine Vehn, W. Govaerts, J. Friml, Trends in Plant Science 16 (2011) 468–475.

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Journal Article | Published | English
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Abstract
Carrier-dependent, intercellular auxin transport is central to the developmental patterning of higher plants (tracheophytes). The evolution of this polar auxin transport might be linked to the translocation of some PIN auxin efflux carriers from their presumably ancestral localization at the endoplasmic reticulum (ER) to the polar domains at the plasma membrane. Here we propose an eventually ancient mechanism of intercellular auxin distribution by ER-localized auxin transporters involving intracellular auxin retention and switch-like release from the ER. The proposed model integrates feedback circuits utilizing the conserved nuclear auxin signaling for the regulation of PIN transcription and a hypothetical ER-based signaling for the regulation of PIN-dependent transport activity at the ER. Computer simulations of the model revealed its plausibility for generating auxin channels and localized auxin maxima highlighting the possibility of this alternative mechanism for polar auxin transport.
Publishing Year
Date Published
2011-09-01
Journal Title
Trends in Plant Science
Volume
16
Issue
9
Page
468 - 475
IST-REx-ID

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Wabnik KT, Kleine Vehn J, Govaerts W, Friml J. Prototype cell-to-cell auxin transport mechanism by intracellular auxin compartmentalization. Trends in Plant Science. 2011;16(9):468-475. doi:10.1016/j.tplants.2011.05.002
Wabnik, K. T., Kleine Vehn, J., Govaerts, W., & Friml, J. (2011). Prototype cell-to-cell auxin transport mechanism by intracellular auxin compartmentalization. Trends in Plant Science, 16(9), 468–475. https://doi.org/10.1016/j.tplants.2011.05.002
Wabnik, Krzysztof T, Jürgen Kleine Vehn, Willy Govaerts, and Jirí Friml. “Prototype Cell-to-Cell Auxin Transport Mechanism by Intracellular Auxin Compartmentalization.” Trends in Plant Science 16, no. 9 (2011): 468–75. https://doi.org/10.1016/j.tplants.2011.05.002.
K. T. Wabnik, J. Kleine Vehn, W. Govaerts, and J. Friml, “Prototype cell-to-cell auxin transport mechanism by intracellular auxin compartmentalization,” Trends in Plant Science, vol. 16, no. 9, pp. 468–475, 2011.
Wabnik KT, Kleine Vehn J, Govaerts W, Friml J. 2011. Prototype cell-to-cell auxin transport mechanism by intracellular auxin compartmentalization. Trends in Plant Science. 16(9), 468–475.
Wabnik, Krzysztof T., et al. “Prototype Cell-to-Cell Auxin Transport Mechanism by Intracellular Auxin Compartmentalization.” Trends in Plant Science, vol. 16, no. 9, Cell Press, 2011, pp. 468–75, doi:10.1016/j.tplants.2011.05.002.

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