Lateral relocation of auxin efflux regulator PIN3 mediates tropism in Arabidopsis

Lade...
Vorschaubild
Dateien
186_friml02.pdf
186_friml02.pdfGröße: 457.02 KBDownloads: 1993
Datum
2002
Autor:innen
Friml, Jiři
Wiśniewska, Justyna
Benková, Eva
Palme, Klaus
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
DOI (zitierfähiger Link)
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Open Access Green
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Zusammenfassung

Long-standing models propose that plant growth responses to light or gravity are mediated by asymmetric distribution of the phytohormone auxin1 3. Physiological studies implicated a specific transport system that relocates auxin laterally, thereby effecting differential growth4; however, neither the molecular components of this system nor the cellular mechanism of auxin redistribution on light or gravity perception have been identified. Here, we show that auxin accumulates asymmetrically during differential growth in an efflux-dependent manner. Mutations in the Arabidopsis gene PIN3, a regulator of auxin efflux, alter differential growth. PIN3 is expressed in gravity-sensing tissues, with PIN3 protein accumulating predominantly at the lateral cell surface. PIN3 localizes to the plasma membrane and to vesicles that cycle in an actin-dependent manner. In the root columella, PIN3 is positioned symmetrically at the plasma membrane but rapidly relocalizes laterally on gravity stimulation. Our data indicate that PIN3 is a component of the lateral auxin transport system regulating tropic growth. In addition, actin-dependent relocalization of PIN3 in response to gravity provides a mechanism for redirecting auxin flux to trigger asymmetric growth.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
570 Biowissenschaften, Biologie
Schlagwörter
tropism, Arabidopsis, PIN3
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690FRIML, Jiři, Justyna WIŚNIEWSKA, Eva BENKOVÁ, Kurt MENDGEN, Klaus PALME, 2002. Lateral relocation of auxin efflux regulator PIN3 mediates tropism in Arabidopsis. In: Nature. 2002, 415(6873), pp. 806-809. ISSN 0028-0836. Available under: doi: 10.1038/415806a
BibTex
@article{Friml2002Later-6821,
  year={2002},
  doi={10.1038/415806a},
  title={Lateral relocation of auxin efflux regulator PIN3 mediates tropism in Arabidopsis},
  number={6873},
  volume={415},
  issn={0028-0836},
  journal={Nature},
  pages={806--809},
  author={Friml, Jiři and Wiśniewska, Justyna and Benková, Eva and Mendgen, Kurt and Palme, Klaus}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/6821">
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/6821"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:abstract xml:lang="eng">Long-standing models propose that plant growth responses to light or gravity are mediated by asymmetric distribution of the phytohormone auxin1 3. Physiological studies implicated a specific transport system that relocates auxin laterally, thereby effecting differential growth4; however, neither the molecular components of this system nor the cellular mechanism of auxin redistribution on light or gravity perception have been identified. Here, we show that auxin accumulates asymmetrically during differential growth in an efflux-dependent manner. Mutations in the Arabidopsis gene PIN3, a regulator of auxin efflux, alter differential growth. PIN3 is expressed in gravity-sensing tissues, with PIN3 protein accumulating predominantly at the lateral cell surface. PIN3 localizes to the plasma membrane and to vesicles that cycle in an actin-dependent manner. In the root columella, PIN3 is positioned symmetrically at the plasma membrane but rapidly relocalizes laterally on gravity stimulation. Our data indicate that PIN3 is a component of the lateral auxin transport system regulating tropic growth. In addition, actin-dependent relocalization of PIN3 in response to gravity provides a mechanism for redirecting auxin flux to trigger asymmetric growth.</dcterms:abstract>
    <dc:creator>Wiśniewska, Justyna</dc:creator>
    <dc:creator>Benková, Eva</dc:creator>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/6821/1/186_friml02.pdf"/>
    <dc:creator>Mendgen, Kurt</dc:creator>
    <dc:format>application/pdf</dc:format>
    <dcterms:issued>2002</dcterms:issued>
    <dcterms:bibliographicCitation>First publ. in: Nature 415 (2002), pp.806-809</dcterms:bibliographicCitation>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:29:26Z</dcterms:available>
    <dc:creator>Friml, Jiři</dc:creator>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/6821/1/186_friml02.pdf"/>
    <dc:contributor>Friml, Jiři</dc:contributor>
    <dc:contributor>Palme, Klaus</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by-nc-nd/2.0/"/>
    <dc:contributor>Benková, Eva</dc:contributor>
    <dc:contributor>Wiśniewska, Justyna</dc:contributor>
    <dc:contributor>Mendgen, Kurt</dc:contributor>
    <dc:creator>Palme, Klaus</dc:creator>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dc:rights>Attribution-NonCommercial-NoDerivs 2.0 Generic</dc:rights>
    <dc:language>eng</dc:language>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:29:26Z</dc:date>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dcterms:title>Lateral relocation of auxin efflux regulator PIN3 mediates tropism in Arabidopsis</dcterms:title>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Nein
Begutachtet
Diese Publikation teilen