PuSH - Publikationsserver des Helmholtz Zentrums München

Export: TXT Text RIS Endnote (RIS) BIB BibTeX
Péret, B.* ; Li, G.* ; Zhao, J.* ; Band, L.R.* ; Voß, U.* ; Postaire, O.* ; Luu, D.T.* ; Da Ines, O. ; Casimiro, I.* ; Lucas, M.* ; Wells, D.M.* ; Lazzerini, L.* ; Nacry, P.* ; King, J.R.* ; Jensen, O.E.* ; Schäffner, A. ; Maurel, C.* ; Bennett, M.J.*

Auxin regulates aquaporin function to facilitate lateral root emergence.

Nat. Cell Biol. 14, 991-998 (2012)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Aquaporins are membrane channels that facilitate water movement across cell membranes. In plants, aquaporins contribute to water relations. Here, we establish a new link between aquaporin-dependent tissue hydraulics and auxin-regulated root development in Arabidopsis thaliana. We report that most aquaporin genes are repressed during lateral root formation and by exogenous auxin treatment. Auxin reduces root hydraulic conductivity both at the cell and whole-organ levels. The highly expressed aquaporin PIP2;1 is progressively excluded from the site of the auxin response maximum in lateral root primordia (LRP) whilst being maintained at their base and underlying vascular tissues. Modelling predicts that the positive and negative perturbations of PIP2;1 expression alter water flow into LRP, thereby slowing lateral root emergence (LRE). Consistent with this mechanism, pip2;1 mutants and PIP2;1-overexpressing lines exhibit delayed LRE. We conclude that auxin promotes LRE by regulating the spatial and temporal distribution of aquaporin-dependent root tissue water transport.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
19.488
3.146
227
237
Tags
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern

Zusatzinfos bearbeiten
Eigene Tags bearbeiten
Privat
Eigene Anmerkung bearbeiten
Privat
Auf Publikationslisten für
Homepage nicht anzeigen
Als besondere Publikation
markieren
Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter ARABIDOPSIS-THALIANA; WATER TRANSPORT; PLASMA-MEMBRANE; HYDRAULIC CONDUCTIVITY; CELL ELONGATION; EXPRESSION; ARF19; ORGANOGENESIS; MUTAGENESIS; INITIATION
Sprache englisch
Veröffentlichungsjahr 2012
HGF-Berichtsjahr 2012
ISSN (print) / ISBN 1465-7392
e-ISSN 1476-4679
Zeitschrift Nature Cell Biology
Quellenangaben Band: 14, Heft: 10, Seiten: 991-998 Artikelnummer: , Supplement: ,
Verlag Nature Publishing Group
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Environmental Simulation (EUS)
POF Topic(s) 30202 - Environmental Health
Forschungsfeld(er) Environmental Sciences
PSP-Element(e) G-504900-002
PubMed ID 22983115
DOI 10.1038/ncb2573
WOS ID WOS:000309543800008
Scopus ID 84867096902
Erfassungsdatum 2012-10-23
[➜Korrektur melden]