Receptor kinase THESEUS1 is a rapid alkalinization factor 34 receptor in <em>Arabidopsis</em>
2018
Gonneau, Martine | Desprez, Thierry | Martin, Marjolaine | Doblas, Verónica G. | Bacete, Laura | Miart, Fabien | Sormani, Rodnay | Hématy, Kian | Renou, Julien | Landrein, Benoit | Murphy, Evan | van de Cotte, Brigitte | Vernhettes, Samantha | de Smet, Ive | Höfte, Herman | Institut Jean-Pierre Bourgin (IJPB) ; Institut National de la Recherche Agronomique (INRA)-AgroParisTech | Université Paris Saclay (COmUE) | Universidad Politécnica de Madrid (UPM) | Sainsbury Laboratory Cambridge University (SLCU) ; University of Cambridge [UK] (CAM) | Division of Plant and Crop Sciences, School of Biosciences ; University of Nottingham, UK (UON) | Department of plant Biotechnology and Bioinformatics ; Universiteit Gent = Ghent University = Université de Gand (UGENT) | Flanders Institute for Biotechnology | French National Agency for Research (ANR) grants ‘‘Wallintegrity,’’ ‘‘GrowPec,’’ and ‘‘Pectosign’’ ; Spanish Ministry of Economy and Competitiveness (MINECO) (CBGP, UPM-INIA) [BIO2012-32910] ; Swiss National Science Foundation ; MINECO FPI [BES-2013-065010] and short-stage [EEBB-I-16-10710] fellowships ; LabEx Saclay Plant Sciences-SPS [ANR-10-LABX-0040-SPS] | ANR-10-LABX-0040,SPS,Saclay Plant Sciences(2010)
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Show more [+] Less [-]English. The growth of plants, like that of other walled organisms, depends on the ability of the cell wall to yield without losing its integrity. In this context, plant cells can sense the perturbation of their walls and trigger adaptive modifications in cell wall polymer interactions. <em>Catharanthus roseus</em> receptor-like kinase 1-like (<em>Cr</em>RLK1L) THESEUS1 (THE1) was previously shown in <em>Arabidopsis</em> to trigger growth inhibition and defense responses upon perturbation of the cell wall, but so far, neither the ligand nor the role of the receptor in normal development was known. Here, we report that THE1 is a receptor for the peptide rapid alkalinization factor (RALF) 34 and that this signaling module has a role in the fine-tuning of lateral root initiation. We also show that RALF34-THE1 signaling depends, at least for some responses, on FERONIA (FER), another RALF receptor involved in a variety of processes, including immune signaling, mechanosensing, and reproduction [1]. Together, the results show that RALF34 and THE1 are part of a signaling network that integrates information on the integrity of the cell wall with the coordination of normal morphogenesis.
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