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

Krzysztof Wabnik (UGent) , Jürgen Kleine-Vehn (UGent) , Willy Govaerts (UGent) and Jiri Friml (UGent)
(2011) TRENDS IN PLANT SCIENCE. 16(9). p.468-475
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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.
Keywords
ARABIDOPSIS, EFFLUX, LAND PLANTS, GENE-EXPRESSION, CYTOKININ INTERACTION, ROOT GRAVITROPISM, BINDING PROTEIN-1, MOSS PHYSCOMITRELLA-PATENS, PLANT DEVELOPMENT, PIN

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MLA
Wabnik, Krzysztof, Jürgen Kleine-Vehn, Willy Govaerts, et al. “Prototype Cell-to-cell Auxin Transport Mechanism by Intracellular Auxin Compartmentalization.” TRENDS IN PLANT SCIENCE 16.9 (2011): 468–475. Print.
APA
Wabnik, K., 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.
Chicago author-date
Wabnik, Krzysztof, Jürgen Kleine-Vehn, Willy Govaerts, and Jiri Friml. 2011. “Prototype Cell-to-cell Auxin Transport Mechanism by Intracellular Auxin Compartmentalization.” Trends in Plant Science 16 (9): 468–475.
Chicago author-date (all authors)
Wabnik, Krzysztof, Jürgen Kleine-Vehn, Willy Govaerts, and Jiri Friml. 2011. “Prototype Cell-to-cell Auxin Transport Mechanism by Intracellular Auxin Compartmentalization.” Trends in Plant Science 16 (9): 468–475.
Vancouver
1.
Wabnik K, 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):468–75.
IEEE
[1]
K. 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.
@article{1935769,
  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.}},
  author       = {{Wabnik, Krzysztof and Kleine-Vehn, Jürgen and Govaerts, Willy and Friml, Jiri}},
  issn         = {{1360-1385}},
  journal      = {{TRENDS IN PLANT SCIENCE}},
  keywords     = {{ARABIDOPSIS,EFFLUX,LAND PLANTS,GENE-EXPRESSION,CYTOKININ INTERACTION,ROOT GRAVITROPISM,BINDING PROTEIN-1,MOSS PHYSCOMITRELLA-PATENS,PLANT DEVELOPMENT,PIN}},
  language     = {{eng}},
  number       = {{9}},
  pages        = {{468--475}},
  title        = {{Prototype cell-to-cell auxin transport mechanism by intracellular auxin compartmentalization}},
  url          = {{http://dx.doi.org/10.1016/j.tplants.2011.05.002}},
  volume       = {{16}},
  year         = {{2011}},
}

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