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

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F06%3A00018261" target="_blank" >RIV/00216224:14310/06:00018261 - isvavai.cz</a>

  • Alternative codes found

    RIV/62156489:43210/06:00094897

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

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

  • Original language description

    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 neighbouring cells are integrated to specify the polarity of individual cells. The canalization hypothesis proposes a feed-back 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 cellspecific, does not depend on PINtranscription and involves the Aux/IAA-ARF signalling 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 re

  • Czech name

    Kanalizace toku auxinu zpětnovazební regulací polarity PIN závislou na Aux/IAA-ARF

  • Czech description

    Vývoj rostlin je charakterizován schopností regenerovat a vytvářet pletiva s novými osami polarity. Nevyřešenou otázkou zůstávalo, jak poloha buňky v pletivu a signály z okolních buněk jsou integrovány a určují polaritu jednotlivých buněk. Kanalizační hypotéza navrhuje zpětnovazební působení fytohormonu auxinu na usměrňování mezibuněčného toku auxinu jako prostředek pro polarizaci pletiv. V této práci byl identifikován buněčný a molekulární mechanismus kanalizace.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    EB - Genetics and molecular biology

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2006

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Genes & Development

  • ISSN

    0890-9369

  • e-ISSN

  • Volume of the periodical

    20

  • Issue of the periodical within the volume

    20

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    10

  • Pages from-to

    2902-2911

  • UT code for WoS article

  • EID of the result in the Scopus database