J 2013

Arabidopsis TWISTED DWARF1 Functionally Interacts with Auxin Exporter ABCB1 on the Root Plasma Membrane

WANG, Bangjun; Aurelien BAILLY; Marta ZWIEWKA; Sina HENRICHS; Elisa AZZARELLO et. al.

Základní údaje

Originální název

Arabidopsis TWISTED DWARF1 Functionally Interacts with Auxin Exporter ABCB1 on the Root Plasma Membrane

Autoři

WANG, Bangjun; Aurelien BAILLY; Marta ZWIEWKA; Sina HENRICHS; Elisa AZZARELLO; Stefano MANCUSO; Masayoshi MAESHIMA; Jiří FRIML; Alexander SCHULZ a Markus GEISLER

Vydání

Plant Cell, ROCKVILLE, AMER SOC PLANT BIOLOGISTS, 2013, 1040-4651

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

Genetika a molekulární biologie

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 9.575

Kód RIV

RIV/00216224:14740/13:00072092

Organizační jednotka

Středoevropský technologický institut

UT WoS

000315572400017

Klíčová slova anglicky

BINDING CASSETTE TRANSPORTER; PLANT DEVELOPMENT; P-GLYCOPROTEINS; LATERAL ROOT; EFFLUX; IMMUNOPHILIN; RESISTANCE; CELLS; PIN; LOCALIZATION

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 10. 4. 2014 09:25, Olga Křížová

Anotace

V originále

Plant architecture is influenced by the polar, cell-to-cell transport of auxin that is primarily provided and regulated by plasma membrane efflux catalysts of the PIN-FORMED and B family of ABC transporter (ABCB) classes. The latter were shown to require the functionality of the FK506 binding protein42 TWISTED DWARF1 (TWD1), although underlying mechanisms are unclear. By genetic manipulation of TWD1 expression, we show here that TWD1 affects shootward root auxin reflux and, thus, downstream developmental traits, such as epidermal twisting and gravitropism of the root. Using immunological assays, we demonstrate a predominant lateral, mainly outward-facing, plasma membrane location for TWD1 in the root epidermis characterized by the lateral marker ABC transporter G36/PLEIOTROPIC DRUG-RESISTANCE8/PENETRATION3. At these epidermal plasma membrane domains, TWD1 colocalizes with nonpolar ABCB1. In planta bioluminescence resonance energy transfer analysis was used to verify specific ABC transporter B1 (ABCB1)-TWD1 interaction. Our data support a model in which TWD1 promotes lateral ABCB-mediated auxin efflux via protein-protein interaction at the plasma membrane, minimizing reflux from the root apoplast into the cytoplasm.