Strigolactones inhibit auxin feedback on PIN-dependent auxin transport canalization

Jing Zhang (), Ewa Mazur, Jozef Balla, Michelle Gallei, Petr Kalousek, Zuzana Medveďová, Yang Li, Yaping Wang, Tomáš Prát, Mina Vasileva, Vilém Reinöhl, Stanislav Procházka, Rostislav Halouzka, Petr Tarkowski, Christian Luschnig, Philip B. Brewer and Jiří Friml ()
Additional contact information
Jing Zhang: China Agricultural University
Ewa Mazur: University of Silesia in Katowice, Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection
Jozef Balla: Mendel University in Brno
Michelle Gallei: Institute of Science and Technology (IST)
Petr Kalousek: Mendel University in Brno
Zuzana Medveďová: Mendel University in Brno
Yang Li: China Agricultural University
Yaping Wang: China Agricultural University
Tomáš Prát: Institute of Science and Technology (IST)
Mina Vasileva: Institute of Science and Technology (IST)
Vilém Reinöhl: Mendel University in Brno
Stanislav Procházka: Mendel University in Brno
Rostislav Halouzka: Palacký University
Petr Tarkowski: Palacký University
Christian Luschnig: University of Natural Resources and Life Sciences, Vienna (BOKU)
Philip B. Brewer: The University of Adelaide
Jiří Friml: Institute of Science and Technology (IST)

Nature Communications, 2020, vol. 11, issue 1, 1-10

Abstract: Abstract Directional transport of the phytohormone auxin is a versatile, plant-specific mechanism regulating many aspects of plant development. The recently identified plant hormones, strigolactones (SLs), are implicated in many plant traits; among others, they modify the phenotypic output of PIN-FORMED (PIN) auxin transporters for fine-tuning of growth and developmental responses. Here, we show in pea and Arabidopsis that SLs target processes dependent on the canalization of auxin flow, which involves auxin feedback on PIN subcellular distribution. D14 receptor- and MAX2 F-box-mediated SL signaling inhibits the formation of auxin-conducting channels after wounding or from artificial auxin sources, during vasculature de novo formation and regeneration. At the cellular level, SLs interfere with auxin effects on PIN polar targeting, constitutive PIN trafficking as well as clathrin-mediated endocytosis. Our results identify a non-transcriptional mechanism of SL action, uncoupling auxin feedback on PIN polarity and trafficking, thereby regulating vascular tissue formation and regeneration.

Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.nature.com/articles/s41467-020-17252-y Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17252-y

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-020-17252-y

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().