Cited by 453Plant Molecular Biology ResearchPlant Parasitism and ResistancePlant nutrient uptake and metabolism

Canalization of auxin flow by Aux/IAA-ARF-dependent feedback regulation of PIN polarity

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Sauer, Michael, Balla, Jozef, Luschnig, Christian, Wiśniewska, Justyna, Reinöhl, Vilém, Friml, Jiří, Benková, Eva·2006·Genes & Development

Abstract

Plant development is characterized by a profound ability to regenerate and form tissues with new axes of polarity. An unsolved question concerns how the position within a tissue and cues from neighboring cells are integrated to specify the polarity of individual cells. The canalization hypothesis proposes a feedback effect of the phytohormone auxin on the directionality of intercellular auxin flow as a means to polarize tissues. Here we identify a cellular and molecular mechanism for canalization. Local auxin application, wounding, or auxin accumulation during de novo organ formation lead to rearrangements in the subcellular polar localization of PIN auxin transport components. This auxin effect on PIN polarity is cell-specific, does not depend on PIN transcription, and involves the Aux/IAA-ARF (indole-3-acetic acid-auxin response factor) signaling pathway. Our data suggest that auxin acts as polarizing cue, which links individual cell polarity with tissue and organ polarity through control of PIN polar targeting. This feedback regulation provides a conceptual framework for polarization during multiple regenerative and patterning processes in plants.

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Crossref · 10.1101/gad.390806

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  • Expression of PIN proteins precedes vascular development.

    “the expression of PIN proteins precedes vascular development (Sauer et al., 2006; Scarpella et al., 2006; Wenzel et al., 2007)”

    From Shaping plant architecture (2015) · cites this paper as Sauer et al., 2006

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Authors
Sauer, M., Balla, J., Luschnig, C., Wiśniewska, J., Reinöhl, V., Friml, J., & Benková, E.
Affiliations
  • University of Tübingen (DE)
  • Mendel University in Brno (CZ)
Venue
Genes & Development
Published
2006-10-15
Volume
20
Issue
20
Pages
2902-2911
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2105722863
Cited by
453
References
45
Citations by year
2026: 8 · 2025: 13 · 2024: 15 · 2023: 10 · 2022: 20 · 2021: 25 · 2020: 22 · 2019: 19 · 2018: 22 · 2017: 15 · 2016: 26 · 2015: 21 · 2014: 33 · 2013: 37 · 2012: 28
Type
posted content
Language
en
Open access
Locations
  • Genes & Development (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Volkswagen Foundation
  • Grantová Agentura České Republiky
  • Fundacja na rzecz Nauki Polskiej
  • Austrian Science Fund
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Molecular Biology Research
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Parasitism and Resistance
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant nutrient uptake and metabolism
Keywords
auxin transport, PIN auxin efflux carriers, canalization, auxin response factor, auxin response, cell polarity, tissue polarity, wounding, organ formation, plant regeneration, feedback regulation
MeSH terms
Indoleacetic Acids, Plant Growth Regulators, Plant Proteins, Transcription, Genetic, Signal Transduction, Arabidopsis, Gene Expression Regulation, Plant, Plant Roots, Plant Physiological Phenomena, Phototropism, Pisum sativum, Arabidopsis Proteins

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