PIN-LIKES Coordinate Brassinosteroid Signaling with Nuclear Auxin Input in Arabidopsis thaliana

Sun, Lin and Feraru, Elena and Feraru, Mugurel I. and Waidmann, Sascha and Wang, Wenfei and Passaia, Gisele and Wang, Zhi and Wabnik, Krzysztof and Kleine-Vehn, Juergen (2020). PIN-LIKES Coordinate Brassinosteroid Signaling with Nuclear Auxin Input in Arabidopsis thaliana. "Current Biology", v. 30 (n. 9); pp. 1579-1588. ISSN 0960-9822. https://doi.org/10.1016/j.cub.2020.02.002.

Description

Title: PIN-LIKES Coordinate Brassinosteroid Signaling with Nuclear Auxin Input in Arabidopsis thaliana
Author/s:
  • Sun, Lin
  • Feraru, Elena
  • Feraru, Mugurel I.
  • Waidmann, Sascha
  • Wang, Wenfei
  • Passaia, Gisele
  • Wang, Zhi
  • Wabnik, Krzysztof
  • Kleine-Vehn, Juergen
Item Type: Article
Título de Revista/Publicación: Current Biology
Date: May 2020
ISSN: 0960-9822
Volume: 30
Subjects:
Faculty: Centro de Investigación en Biotecnología y Genómica de Plantas (CBGP) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Auxin and brassinosteroids (BR) are crucial growth regulators and display overlapping functions during plant development. Here, we reveal an alternative phytohormone crosstalk mechanism, revealing that BR signaling controls PIN-LIKES (PILS)-dependent nuclear abundance of auxin. We performed a forward genetic screen for imperial pils (imp) mutants that enhance the overexpression phenotypes of PILS5 putative intracellular auxin transport facilitator. Here, we report that the imp1 mutant is defective in the BR-receptor BRASSINOSTEROID INSENSITIVE 1 (BRI1). Our set of data reveals that BR signaling transcriptionally and post-translationally represses the accumulation of PILS proteins at the endoplasmic reticulum, thereby increasing nuclear abundance and signaling of auxin. We demonstrate that this alternative phytohormonal crosstalkmechanism integrates BR signaling into auxin-dependent organ growth rates and likely has widespread importance for plant development.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainPGC2018-093387-A-I00UnspecifiedUnspecifiedUnspecified
Horizon 2020639478AuxinERUniversitaet Fuer Bodenkultur WienMechanisms of Auxin-dependent Signaling in the Endoplasmic Reticulum

More information

Item ID: 64162
DC Identifier: http://oa.upm.es/64162/
OAI Identifier: oai:oa.upm.es:64162
DOI: 10.1016/j.cub.2020.02.002
Official URL: https://www.sciencedirect.com/science/article/pii/S0960982220301755?via%3Dihub
Deposited by: Memoria Investigacion
Deposited on: 01 Feb 2021 08:01
Last Modified: 01 Feb 2021 08:01
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