Research article - Peer-reviewed, 2002
AtPIN4 mediates sink-driven auxin gradients and root patterning in Arabidopsis
Friml, Jirı́; Benková, Eva; Blilou, Ikram; Wisniewska, Justyna; Hamann, Thorsten; Ljung, Karin; Woody, Scott; Sandberg, Göran; Scheres, Ben; Jürgens, Gerd; Palme, KlausAbstract
In contrast to animals, little is known about pattern formation in plants. Physiological and genetic data suggest the involvement of the phytohormone auxin in this process. Here, we characterize a novel member of the PIN family of putative auxin efflux carriers,Arabidopsis PIN4, that is localized in developing and mature root meristems. Atpin4 mutants are defective in establishment and maintenance of endogenous auxin gradients, fail to canalize externally applied auxin, and display various patterning defects in both embryonic and seedling roots. We propose a role for AtPIN4 in generating a sink for auxin below the quiescent center of the root meristem that is essential for auxin distribution and patterning.Published in
Cell2002, volume: 108, number: 5, pages: 661-673
Publisher: CELL PRESS
Authors' information
Friml, Jirı́
Masaryk University
Benková, Eva
Max Delbrück Center for Molecular Medicine
Blilou, Ikram
Utrecht University
Wisniewska, Justyna
Max Delbrück Center for Molecular Medicine
Hamann, Thorsten
University of Tübingen
Swedish University of Agricultural Sciences, Department of Forest Genetics and Plant Physiology
Woody, Scott
University of Wisconsin-Madison
Sandberg, Göran
Swedish University of Agricultural Sciences, Department of Forest Genetics and Plant Physiology
Scheres, Ben
Utrecht University
Jürgens, Gerd
University of Tübingen
Palme, Klaus
University of Freiburg
UKÄ Subject classification
Developmental Biology
Publication Identifiers
DOI: https://doi.org/10.1016/S0092-8674(02)00656-6
URI (permanent link to this page)
https://res.slu.se/id/publ/41652