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Complementation of the embryo-lethal T-DNA insertion mutant of AUXIN-BINDING-PROTEIN 1 (ABP1) with abp1 point mutated versions reveals crosstalk of ABP1 and phytochromes

Effendi, Yunus ; Ferro, Noel ; Labusch, Corinna ; Geisler, Markus ; Scherer, Günther F. E.

In: Journal Of Experimental Botany, 2015, vol. 66, no. 1, p. 403-418

TWISTED DWARF1 mediates the action of auxin transport inhibitors on actin cytoskeleton dynamics

Zhu, Jinsheng ; Bailly, Aurelien ; Zwiewka, Marta ; Sovero, Valpuri ; Donato, Martin Di ; Ge, Pei ; Oehri, Jacqueline ; Aryal, Bibek ; Hao, Pengchao ; Linnert, Miriam ; Burgardt, Noelia Inés ; Lücke, Christian ; Weiwad, Matthias ; Michel, Max ; Weiergräber, Oliver H. ; Pollmann, Stephan ; Azzarello, Elisa ; Mancuso, Stefano ; Ferro, Noel ; Fukao, Yoichiro ; Hoffmann, Céline ; Wedlich-Söldner, Roland ; Friml, Jiří ; Thomas, Clément ; Geisler, Markus

In: The Plant Cell, 2016, vol. 28, no. 4, p. 930–948

Plant growth and architecture is regulated by the polar distribution of the hormone auxin. Polarity and flexibility of this process is provided by constant cycling of auxin transporter vesicles along actin filaments, coordinated by a positive auxin-actin feedback loop. Both polar auxin transport and vesicle cycling are inhibited by synthetic auxin transport inhibitors, such as...

Complementation of the embryo-lethal T-DNA insertion mutant of AUXIN-BINDING-PROTEIN 1 (ABP1) with abp1 point mutated versions reveals crosstalk of ABP1 and phytochromes

Effendi, Yunus ; Ferro, Noel ; Labusch, Corinna ; Geisler, Markus ; Scherer, Günther F. E.

In: Journal of Experimental Botany, 2015, vol. 66, no. 1, p. 403-418

The function of the extracytoplasmic AUXIN-BINDING-PROTEIN1 (ABP1) is largely enigmatic. We complemented a homozygous T-DNA insertion null mutant of ABP1 in Arabidopsis thaliana Wassilewskia with three mutated and one wild-type (wt) ABP1 cDNA, all tagged C-terminally with a strepII–FLAG tag upstream the KDEL signal. Based on in silico modelling, the abp1 mutants were predicted to have altered...