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.

Basic information

Original name

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

Authors

WANG, Bangjun (756 Switzerland), Aurelien BAILLY (756 Switzerland), Marta ZWIEWKA (616 Poland), Sina HENRICHS (756 Switzerland), Elisa AZZARELLO (380 Italy), Stefano MANCUSO (56 Belgium), Masayoshi MAESHIMA (392 Japan), Jiří FRIML (203 Czech Republic, guarantor, belonging to the institution), Alexander SCHULZ (208 Denmark) and Markus GEISLER (756 Switzerland)

Edition

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

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

Genetics and molecular biology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 9.575

RIV identification code

RIV/00216224:14740/13:00072092

Organization unit

Central European Institute of Technology

UT WoS

000315572400017

Keywords in English

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

Tags

Tags

International impact, Reviewed
Změněno: 10/4/2014 09:25, Olga Křížová

Abstract

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.