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Strigolactones inhibit auxin feedback on PIN-dependent auxin transport canalization

J. Zhang, E. Mazur, J. Balla, M. Gallei, P. Kalousek, Z. Medveďová, Y. Li, Y. Wang, T. Prát, M. Vasileva, V. Reinöhl, S. Procházka, R. Halouzka, P. Tarkowski, C. Luschnig, PB. Brewer, J. Friml,

. 2020 ; 11 (1) : 3508. [pub] 20200714

Jazyk angličtina Země Velká Británie

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/bmc20024883

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.

Citace poskytuje Crossref.org

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$a Zhang, Jing $u State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China. zhangj@cau.edu.cn.
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$a Strigolactones inhibit auxin feedback on PIN-dependent auxin transport canalization / $c J. Zhang, E. Mazur, J. Balla, M. Gallei, P. Kalousek, Z. Medveďová, Y. Li, Y. Wang, T. Prát, M. Vasileva, V. Reinöhl, S. Procházka, R. Halouzka, P. Tarkowski, C. Luschnig, PB. Brewer, J. Friml,
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$a 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.
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$a Mazur, Ewa $u University of Silesia in Katowice, Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, Jagiellońska 28, 40-032, Katowice, Poland. Mendel Centre for Plant Genomics and Proteomics, Central European Institute of Technology (CEITEC), Masaryk University (MU), 62500, Brno, Czech Republic.
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$a Balla, Jozef $u Central European Institute of Technology (CEITEC), Mendel University in Brno, Zemedelska 1, 61300, Brno, Czech Republic. Department of Plant Biology, Mendel University in Brno, Zemedelska 1, 61300, Brno, Czech Republic.
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$a Gallei, Michelle $u Institute of Science and Technology (IST), Klosterneuburg, 3400, Austria.
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$a Kalousek, Petr $u Department of Plant Biology, Mendel University in Brno, Zemedelska 1, 61300, Brno, Czech Republic.
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$a Medveďová, Zuzana $u Central European Institute of Technology (CEITEC), Mendel University in Brno, Zemedelska 1, 61300, Brno, Czech Republic.
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$a Li, Yang $u State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China.
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$a Wang, Yaping $u State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China.
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$a Prát, Tomáš $u Institute of Science and Technology (IST), Klosterneuburg, 3400, Austria.
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$a Vasileva, Mina $u Institute of Science and Technology (IST), Klosterneuburg, 3400, Austria.
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$a Reinöhl, Vilém $u Central European Institute of Technology (CEITEC), Mendel University in Brno, Zemedelska 1, 61300, Brno, Czech Republic.
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$a Procházka, Stanislav $u Central European Institute of Technology (CEITEC), Mendel University in Brno, Zemedelska 1, 61300, Brno, Czech Republic.
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$a Halouzka, Rostislav $u Central Laboratories and Research Support, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic.
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$a Luschnig, Christian $u Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna (BOKU), Muthgasse 18, 1190, Wien, Austria.
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$a Brewer, Philip B $u ARC Centre of Excellence in Plant Energy Biology, School of Agriculture, Food and Wine, Waite Research Precinct, The University of Adelaide, Glen Osmond, SA, 5064, Australia.
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$a Friml, Jiří $u Institute of Science and Technology (IST), Klosterneuburg, 3400, Austria. jiri.friml@ist.ac.at.
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