1
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Liu C, Mentzelopoulou A, Papagavriil F, Ramachandran P, Perraki A, Claus L, Barg S, Dörmann P, Jaillais Y, Johnen P, Russinova E, Gizeli E, Schaaf G, Moschou PN. SEC14-like condensate phase transitions at plasma membranes regulate root growth in Arabidopsis. PLoS Biol 2023; 21:e3002305. [PMID: 37721949 PMCID: PMC10538751 DOI: 10.1371/journal.pbio.3002305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 09/28/2023] [Accepted: 08/20/2023] [Indexed: 09/20/2023] Open
Abstract
Protein function can be modulated by phase transitions in their material properties, which can range from liquid- to solid-like; yet, the mechanisms that drive these transitions and whether they are important for physiology are still unknown. In the model plant Arabidopsis, we show that developmental robustness is reinforced by phase transitions of the plasma membrane-bound lipid-binding protein SEC14-like. Using imaging, genetics, and in vitro reconstitution experiments, we show that SEC14-like undergoes liquid-like phase separation in the root stem cells. Outside the stem cell niche, SEC14-like associates with the caspase-like protease separase and conserved microtubule motors at unique polar plasma membrane interfaces. In these interfaces, SEC14-like undergoes processing by separase, which promotes its liquid-to-solid transition. This transition is important for root development, as lines expressing an uncleavable SEC14-like variant or mutants of separase and associated microtubule motors show similar developmental phenotypes. Furthermore, the processed and solidified but not the liquid form of SEC14-like interacts with and regulates the polarity of the auxin efflux carrier PINFORMED2. This work demonstrates that robust development can involve liquid-to-solid transitions mediated by proteolysis at unique plasma membrane interfaces.
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Affiliation(s)
- Chen Liu
- Department of Biology, University of Crete, Heraklion, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, Uppsala, Sweden
| | - Andriani Mentzelopoulou
- Department of Biology, University of Crete, Heraklion, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
| | - Fotini Papagavriil
- Department of Biology, University of Crete, Heraklion, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
| | - Prashanth Ramachandran
- Department of Organismal Biology, Physiological Botany, Linnean Centre for Plant Biology, Uppsala University, Uppsala, Sweden
| | - Artemis Perraki
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
| | - Lucas Claus
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- Center for Plant Systems Biology, Ghent, Belgium
| | - Sebastian Barg
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Peter Dörmann
- Institute of Molecular Physiology and Biotechnology of Plants, University of Bonn, Bonn, Germany
| | - Yvon Jaillais
- Laboratoire Reproduction et Développement des Plantes, ENS de Lyon, Université Claude Bernard Lyon 1, CNRS, INRAE, Lyon, France
| | - Philipp Johnen
- Department of Plant Nutrition, Institute of Crop Science and Resource Conservation, University of Bonn, Bonn, Germany
| | - Eugenia Russinova
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- Center for Plant Systems Biology, Ghent, Belgium
| | - Electra Gizeli
- Department of Biology, University of Crete, Heraklion, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
| | - Gabriel Schaaf
- Department of Plant Nutrition, Institute of Crop Science and Resource Conservation, University of Bonn, Bonn, Germany
| | - Panagiotis Nikolaou Moschou
- Department of Biology, University of Crete, Heraklion, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, Uppsala, Sweden
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2
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Frangedakis E, Guzman-Chavez F, Rebmann M, Markel K, Yu Y, Perraki A, Tse SW, Liu Y, Rever J, Sauret-Gueto S, Goffinet B, Schneider H, Haseloff J. Construction of DNA Tools for Hyperexpression in Marchantia Chloroplasts. ACS Synth Biol 2021; 10:1651-1666. [PMID: 34097383 PMCID: PMC8296666 DOI: 10.1021/acssynbio.0c00637] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Chloroplasts are attractive platforms for synthetic biology applications since they are capable of driving very high levels of transgene expression, if mRNA production and stability are properly regulated. However, plastid transformation is a slow process and currently limited to a few plant species. The liverwort Marchantia polymorpha is a simple model plant that allows rapid transformation studies; however, its potential for protein hyperexpression has not been fully exploited. This is partially due to the fact that chloroplast post-transcriptional regulation is poorly characterized in this plant. We have mapped patterns of transcription in Marchantia chloroplasts. Furthermore, we have obtained and compared sequences from 51 bryophyte species and identified putative sites for pentatricopeptide repeat protein binding that are thought to play important roles in mRNA stabilization. Candidate binding sites were tested for their ability to confer high levels of reporter gene expression in Marchantia chloroplasts, and levels of protein production and effects on growth were measured in homoplastic transformed plants. We have produced novel DNA tools for protein hyperexpression in this facile plant system that is a test-bed for chloroplast engineering.
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Affiliation(s)
- Eftychios Frangedakis
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, U.K
| | - Fernando Guzman-Chavez
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, U.K
| | - Marius Rebmann
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, U.K
| | - Kasey Markel
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, U.K
| | - Ying Yu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Artemis Perraki
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, U.K
| | - Sze Wai Tse
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, U.K
| | - Yang Liu
- Fairy Lake Botanical Garden & Chinese Academy of Sciences, Shenzhen, Guangdong 518004, China
| | - Jenna Rever
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, U.K
| | - Susanna Sauret-Gueto
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, U.K
| | - Bernard Goffinet
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, Connecticut 06269-3043, United States
| | - Harald Schneider
- Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Yunnan 666303, China
| | - Jim Haseloff
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, U.K
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3
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Gouguet P, Gronnier J, Legrand A, Perraki A, Jolivet MD, Deroubaix AF, German-Retana S, Boudsocq M, Habenstein B, Mongrand S, Germain V. Connecting the dots: from nanodomains to physiological functions of REMORINs. Plant Physiol 2021; 185:632-649. [PMID: 33793872 PMCID: PMC8133660 DOI: 10.1093/plphys/kiaa063] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 10/31/2020] [Indexed: 05/11/2023]
Abstract
REMORINs (REMs) are a plant-specific protein family, proposed regulators of membrane-associated molecular assemblies and well-established markers of plasma membrane nanodomains. REMs play a diverse set of functions in plant interactions with pathogens and symbionts, responses to abiotic stresses, hormone signaling and cell-to-cell communication. In this review, we highlight the established and more putative roles of REMs throughout the literature. We discuss the physiological functions of REMs, the mechanisms underlying their nanodomain-organization and their putative role as regulators of nanodomain-associated molecular assemblies. Furthermore, we discuss how REM phosphorylation may regulate their functional versatility. Overall, through data-mining and comparative analysis of the literature, we suggest how to further study the molecular mechanisms underpinning the functions of REMs.
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Affiliation(s)
- Paul Gouguet
- Laboratoire de Biogenèse Membranaire (LBM), Unité Mixte de Recherche UMR 5200, CNRS, Université de Bordeaux, Villenave d’Ornon, France
- ZMBP, Universität Tübingen, Auf der Morgenstelle 32 72076 Tübingen, Germany
| | - Julien Gronnier
- Department of Plant and Microbial Biology University of Zürich, Zollikerstrasse, Zürich, Switzerland
| | - Anthony Legrand
- Laboratoire de Biogenèse Membranaire (LBM), Unité Mixte de Recherche UMR 5200, CNRS, Université de Bordeaux, Villenave d’Ornon, France
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Université de Bordeaux, Institut Polytechnique de Bordeaux, A11, Geoffroy Saint-Hilaire, Pessac, France
| | - Artemis Perraki
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge, UK
- Present address: Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology – Hellas, Heraklion, Crete, Greece
| | - Marie-Dominique Jolivet
- Laboratoire de Biogenèse Membranaire (LBM), Unité Mixte de Recherche UMR 5200, CNRS, Université de Bordeaux, Villenave d’Ornon, France
| | - Anne-Flore Deroubaix
- Laboratoire de Biogenèse Membranaire (LBM), Unité Mixte de Recherche UMR 5200, CNRS, Université de Bordeaux, Villenave d’Ornon, France
| | - Sylvie German-Retana
- Equipe de Virologie, Institut Scientifique de Recherche Agronomique and Université de Bordeaux, BP81, 33883 Villenave d’Ornon, France
| | - Marie Boudsocq
- Université Paris-Saclay, CNRS, INRAE, Université d’Evry, Institute of Plant Sciences Paris Saclay (IPS2), Université de Paris, Orsay, France
| | - Birgit Habenstein
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Université de Bordeaux, Institut Polytechnique de Bordeaux, A11, Geoffroy Saint-Hilaire, Pessac, France
| | - Sébastien Mongrand
- Laboratoire de Biogenèse Membranaire (LBM), Unité Mixte de Recherche UMR 5200, CNRS, Université de Bordeaux, Villenave d’Ornon, France
- Author for communication: (S.M.)
| | - Véronique Germain
- Laboratoire de Biogenèse Membranaire (LBM), Unité Mixte de Recherche UMR 5200, CNRS, Université de Bordeaux, Villenave d’Ornon, France
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4
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Wan W, Zhang L, Pruitt R, Zaidem M, Brugman R, Ma X, Krol E, Perraki A, Kilian J, Grossmann G, Stahl M, Shan L, Zipfel C, van Kan JAL, Hedrich R, Weigel D, Gust AA, Nürnberger T. Comparing Arabidopsis receptor kinase and receptor protein-mediated immune signaling reveals BIK1-dependent differences. New Phytol 2019; 221:2080-2095. [PMID: 30252144 PMCID: PMC6367016 DOI: 10.1111/nph.15497] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 09/11/2018] [Indexed: 05/12/2023]
Abstract
Pattern recognition receptors (PRRs) sense microbial patterns and activate innate immunity against attempted microbial invasions. The leucine-rich repeat receptor kinases (LRR-RK) FLS2 and EFR, and the LRR receptor protein (LRR-RP) receptors RLP23 and RLP42, respectively, represent prototypical members of these two prominent and closely related PRR families. We conducted a survey of Arabidopsis thaliana immune signaling mediated by these receptors to address the question of commonalities and differences between LRR-RK and LRR-RP signaling. Quantitative differences in timing and amplitude were observed for several early immune responses, with RP-mediated responses typically being slower and more prolonged than those mediated by RKs. Activation of RLP23, but not FLS2, induced the production of camalexin. Transcriptomic analysis revealed that RLP23-regulated genes represent only a fraction of those genes differentially expressed upon FLS2 activation. Several positive and negative regulators of FLS2-signaling play similar roles in RLP23 signaling. Intriguingly, the cytoplasmic receptor kinase BIK1, a positive regulator of RK signaling, acts as a negative regulator of RP-type immune receptors in a manner dependent on BIK1 kinase activity. Our study unveiled unexpected differences in two closely related receptor systems and reports a new negative role of BIK1 in plant immunity.
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Affiliation(s)
- Wei‐Lin Wan
- Department of Plant BiochemistryCentre for Plant Molecular BiologyEberhard Karls University TübingenAuf der Morgenstelle 32D‐72076TübingenGermany
| | - Lisha Zhang
- Department of Plant BiochemistryCentre for Plant Molecular BiologyEberhard Karls University TübingenAuf der Morgenstelle 32D‐72076TübingenGermany
| | - Rory Pruitt
- Department of Plant BiochemistryCentre for Plant Molecular BiologyEberhard Karls University TübingenAuf der Morgenstelle 32D‐72076TübingenGermany
| | - Maricris Zaidem
- Department of Molecular BiologyMax‐Planck‐Institute for Developmental BiologyMax‐Planck‐Str. 5D‐72076TübingenGermany
- Center for Genomics & Systems BiologyNew York University12 Waverly PlaceNew YorkNY10003USA
| | - Rik Brugman
- Centre for Organismal Studies & Excellence Cluster Cell NetworksHeidelberg UniversityIm Neuenheimer Feld 23069120HeidelbergGermany
| | - Xiyu Ma
- Institute for Plant Genomics & BiotechnologyTexas A&M UniversityCollege StationTX77843USA
| | - Elzbieta Krol
- Plant Physiology and BiophysicsJulius Maximilians University WürzburgJulius‐von‐Sachs‐Platz 297082WürzburgGermany
- Department of BiophysicsInstitute of BiologyMaria Curie‐Skłodowska UniversityAkademicka 1920‐033LublinPoland
| | - Artemis Perraki
- The Sainsbury LaboratoryNorwich Research ParkNorwichNR4 7UHUK
- Department of Plant SciencesUniversity of CambridgeCambridgeCB2 3EAUK
| | - Joachim Kilian
- Analytics UnitCentre for Plant Molecular BiologyEberhard Karls University TübingenAuf der Morgenstelle 32D‐72076TübingenGermany
| | - Guido Grossmann
- Centre for Organismal Studies & Excellence Cluster Cell NetworksHeidelberg UniversityIm Neuenheimer Feld 23069120HeidelbergGermany
| | - Mark Stahl
- Analytics UnitCentre for Plant Molecular BiologyEberhard Karls University TübingenAuf der Morgenstelle 32D‐72076TübingenGermany
| | - Libo Shan
- Institute for Plant Genomics & BiotechnologyTexas A&M UniversityCollege StationTX77843USA
| | - Cyril Zipfel
- The Sainsbury LaboratoryNorwich Research ParkNorwichNR4 7UHUK
| | - Jan A. L. van Kan
- Laboratory of PhytopathologyWageningen University6708 PBWageningenthe Netherlands
| | - Rainer Hedrich
- Plant Physiology and BiophysicsJulius Maximilians University WürzburgJulius‐von‐Sachs‐Platz 297082WürzburgGermany
| | - Detlef Weigel
- Department of Molecular BiologyMax‐Planck‐Institute for Developmental BiologyMax‐Planck‐Str. 5D‐72076TübingenGermany
| | - Andrea A. Gust
- Department of Plant BiochemistryCentre for Plant Molecular BiologyEberhard Karls University TübingenAuf der Morgenstelle 32D‐72076TübingenGermany
| | - Thorsten Nürnberger
- Department of Plant BiochemistryCentre for Plant Molecular BiologyEberhard Karls University TübingenAuf der Morgenstelle 32D‐72076TübingenGermany
- Department of BiochemistryUniversity of JohannesburgAuckland ParkSouth Africa
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5
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Perraki A, DeFalco TA, Derbyshire P, Avila J, Séré D, Sklenar J, Qi X, Stransfeld L, Schwessinger B, Kadota Y, Macho AP, Jiang S, Couto D, Torii KU, Menke FLH, Zipfel C. Phosphocode-dependent functional dichotomy of a common co-receptor in plant signalling. Nature 2018; 561:248-252. [PMID: 30177827 PMCID: PMC6250601 DOI: 10.1038/s41586-018-0471-x] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 07/17/2018] [Indexed: 11/09/2022]
Abstract
Multicellular organisms employ cell-surface receptor kinases (RKs) to sense and process extracellular signals. Many plant RKs form ligand-induced complexes with shape-complementary co-receptors for their activation1. The best-characterized co-receptor is BRASSINOSTEROID INSENSITIVE 1-ASSOCIATED KINASE 1 (BAK1), which associates with numerous leucine-rich repeat (LRR)-RKs to control immunity, growth, and development2. Here, we report key regulatory events controlling the functionality of BAK1 and, more generally, LRR-RKs. Through a combination of phospho-proteomics and targeted mutagenesis, we identified conserved phosphosites that are required for BAK1 immune function in Arabidopsis thaliana (hereafter Arabidopsis). Strikingly, these phosphosites are not required for BAK1-dependent brassinosteroid (BR)-regulated growth. In addition to revealing a critical role for BAK1 C-terminal tail phosphorylation, we identified a conserved tyrosine phosphosite that may be required for functionality of the majority of Arabidopsis LRR-RKs, and separates them into two distinct functional classes. Our results suggest a phosphocode-based dichotomy of BAK1 functionality in plant signaling, and provide novel insights into receptor kinase activation, which have broad implications for our understanding of how plants respond to their changing environment.
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Affiliation(s)
- Artemis Perraki
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK.,Department of Plant Sciences, University of Cambridge, Cambridge, UK
| | - Thomas A DeFalco
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK.,Institute of Plant and Microbial Biology and Zürich-Basel Plant Science Center, University of Zürich, Zürich, Switzerland
| | - Paul Derbyshire
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK
| | - Julian Avila
- Howard Hughes Medical Institute, University of Washington, Seattle, WA, USA.,Department of Biology, University of Washington, Seattle, WA, USA.,Metabolomics Platform, The Broad Institute, Cambridge, MA, USA
| | - David Séré
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK.,Laboratoire de Biochimie et Physiologie Moléculaire des Plantes, Institut de Biologie Intégrative des Plantes 'Claude Grignon', UMR CNRS/INRA/SupAgro/UM2, Montpellier, France
| | - Jan Sklenar
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK
| | - Xingyun Qi
- Howard Hughes Medical Institute, University of Washington, Seattle, WA, USA.,Department of Biology, University of Washington, Seattle, WA, USA
| | - Lena Stransfeld
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK.,Institute of Plant and Microbial Biology and Zürich-Basel Plant Science Center, University of Zürich, Zürich, Switzerland
| | - Benjamin Schwessinger
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK.,The Australian National University, Research School of Biology, Acton, Australian Capital Territory, Australia
| | - Yasuhiro Kadota
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK.,RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Alberto P Macho
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK.,Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Shushu Jiang
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK.,Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Daniel Couto
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK.,Department of Botany and Plant Biology, University of Geneva, Geneva, Switzerland
| | - Keiko U Torii
- Howard Hughes Medical Institute, University of Washington, Seattle, WA, USA.,Department of Biology, University of Washington, Seattle, WA, USA
| | - Frank L H Menke
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK
| | - Cyril Zipfel
- The Sainsbury Laboratory, Norwich Research Park, Norwich, UK. .,Institute of Plant and Microbial Biology and Zürich-Basel Plant Science Center, University of Zürich, Zürich, Switzerland.
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6
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Singh V, Perraki A, Kim SY, Shrivastava S, Lee JH, Zhao Y, Schwessinger B, Oh MH, Marshall-Colon A, Zipfel C, Huber SC. Tyrosine-610 in the Receptor Kinase BAK1 Does Not Play a Major Role in Brassinosteroid Signaling or Innate Immunity. Front Plant Sci 2017; 8:1273. [PMID: 28824659 PMCID: PMC5539094 DOI: 10.3389/fpls.2017.01273] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 07/06/2017] [Indexed: 05/29/2023]
Abstract
The plasma membrane-localized BRI1-ASSOCIATED KINASE1 (BAK1) functions as a co-receptor with several receptor kinases including the brassinosteroid (BR) receptor BRASSINOSTEROID-INSENSITIVE 1 (BRI1), which is involved in growth, and the receptors for bacterial flagellin and EF-Tu, FLAGELLIN-SENSING 2 (FLS2) and EF-TU RECEPTOR (EFR), respectively, which are involved in immunity. BAK1 is a dual specificity protein kinase that can autophosphorylate on serine, threonine and tyrosine residues. It was previously reported that phosphorylation of Tyr-610 in the carboxy-terminal domain of BAK1 is required for its function in BR signaling and immunity. However, the functional role of Tyr-610 in vivo has recently come under scrutiny. Therefore, we have generated new BAK1 (Y610F) transgenic plants for functional studies. We first produced transgenic Arabidopsis lines expressing BAK1 (Y610F)-Flag in the homozygous bak1-4 bkk1-1 double null background. In a complementary approach, we expressed untagged BAK1 and BAK1 (Y610F) in the bak1-4 null mutant. Neither BAK1 (Y610F) transgenic line had any obvious growth phenotype when compared to wild-type BAK1 expressed in the same background. In addition, the BAK1 (Y610F)-Flag plants responded similarly to plants expressing BAK1-Flag in terms of brassinolide (BL) inhibition of root elongation, and there were only minor changes in gene expression between the two transgenic lines as monitored by microarray analysis and quantitative real-time PCR. In terms of plant immunity, there were no significant differences between plants expressing BAK1 (Y610F)-Flag and BAK1-Flag in the growth of the non-pathogenic hrpA- mutant of Pseudomonas syringae pv. tomato DC3000. Furthermore, untagged BAK1 (Y610F) transgenic plants were as responsive as plants expressing BAK1 (in the bak1-4 background) and wild-type Col-0 plants toward treatment with the EF-Tu- and flagellin-derived peptide epitopes elf18- and flg22, respectively, as measured by reactive oxygen species production, mitogen-activated protein kinase activation, and seedling growth inhibition. These new results do not support any involvement of Tyr-610 phosphorylation in either BR or immune signaling.
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Affiliation(s)
- Vijayata Singh
- Department of Plant Biology, University of Illinois, UrbanaIL, United States
| | - Artemis Perraki
- The Sainsbury Laboratory, Norwich Research ParkNorwich, United Kingdom
| | - Sang Y. Kim
- Department of Plant Biology, University of Illinois, UrbanaIL, United States
- United States Department of Agriculture, Agricultural Research ServiceUrbana, IL, United States
| | - Stuti Shrivastava
- Department of Plant Biology, University of Illinois, UrbanaIL, United States
| | - Jae H. Lee
- Department of Crop Sciences, University of Illinois, UrbanaIL, United States
| | - Youfu Zhao
- Department of Crop Sciences, University of Illinois, UrbanaIL, United States
| | | | - Man-Ho Oh
- Department of Biological Science, College of Biological Sciences and Biotechnology, Chungnam National UniversityDaejeon, South Korea
| | - Amy Marshall-Colon
- Department of Plant Biology, University of Illinois, UrbanaIL, United States
| | - Cyril Zipfel
- The Sainsbury Laboratory, Norwich Research ParkNorwich, United Kingdom
| | - Steven C. Huber
- Department of Plant Biology, University of Illinois, UrbanaIL, United States
- United States Department of Agriculture, Agricultural Research ServiceUrbana, IL, United States
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7
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Perraki A, Binaghi M, Mecchia MA, Gronnier J, German-Retana S, Mongrand S, Bayer E, Zelada AM, Germain V. StRemorin1.3 hampers Potato virus X TGBp1 ability to increase plasmodesmata permeability, but does not interfere with its silencing suppressor activity. FEBS Lett 2014; 588:1699-705. [PMID: 24657438 DOI: 10.1016/j.febslet.2014.03.014] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 02/20/2014] [Accepted: 03/06/2014] [Indexed: 01/19/2023]
Abstract
The Triple Gene Block 1 (TGBp1) protein encoded by the Potato virus X is a multifunctional protein that acts as a suppressor of RNA silencing or facilitates the passage of virus from cell to cell by promoting the plasmodesmata opening. We previously showed that the membrane raft protein StRemorin1.3 is able to impair PVX infection. Here, we show that overexpressed StRemorin1.3 does not impair the silencing suppressor activity of TGBp1, but affects its ability to increase plasmodesmata permeability. A similar effect on plasmodesmata permeability was observed with other movement proteins, suggesting that REM is a general regulator of plasmodesmal size exclusion limit. These results add to our knowledge of the mechanisms underlying the StREM1.3 role in virus infection.
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Affiliation(s)
- Artemis Perraki
- CNRS, Laboratoire de Biogenèse Membranaire (LBM), UMR 5200, F-33000 Villenave d'Ornon, France; Univ. Bordeaux, Laboratoire de Biogenèse Membranaire (LBM), UMR 5200, F-33000 Villenave d'Ornon, France
| | - Maria Binaghi
- Laboratorio de Agrobiotecnología, DFBMC - Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IBBEA, CONICET-UBA, Buenos Aires, Argentina
| | - Martin A Mecchia
- Laboratorio de Agrobiotecnología, DFBMC - Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IBBEA, CONICET-UBA, Buenos Aires, Argentina
| | - Julien Gronnier
- CNRS, Laboratoire de Biogenèse Membranaire (LBM), UMR 5200, F-33000 Villenave d'Ornon, France; Univ. Bordeaux, Laboratoire de Biogenèse Membranaire (LBM), UMR 5200, F-33000 Villenave d'Ornon, France
| | - Sylvie German-Retana
- Equipe de Virologie, UMR BFP 1332 INRA, CS 20032, 33882 Villenave d'Ornon, France
| | - Sébastien Mongrand
- CNRS, Laboratoire de Biogenèse Membranaire (LBM), UMR 5200, F-33000 Villenave d'Ornon, France; Univ. Bordeaux, Laboratoire de Biogenèse Membranaire (LBM), UMR 5200, F-33000 Villenave d'Ornon, France.
| | - Emmanuelle Bayer
- CNRS, Laboratoire de Biogenèse Membranaire (LBM), UMR 5200, F-33000 Villenave d'Ornon, France; Univ. Bordeaux, Laboratoire de Biogenèse Membranaire (LBM), UMR 5200, F-33000 Villenave d'Ornon, France
| | - Alicia M Zelada
- Laboratorio de Agrobiotecnología, DFBMC - Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IBBEA, CONICET-UBA, Buenos Aires, Argentina
| | - Véronique Germain
- CNRS, Laboratoire de Biogenèse Membranaire (LBM), UMR 5200, F-33000 Villenave d'Ornon, France; Univ. Bordeaux, Laboratoire de Biogenèse Membranaire (LBM), UMR 5200, F-33000 Villenave d'Ornon, France
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Raffaele S, Perraki A, Mongrand S. The Remorin C-terminal Anchor was shaped by convergent evolution among membrane binding domains. Plant Signal Behav 2013; 8:e23207. [PMID: 23299327 PMCID: PMC3676492 DOI: 10.4161/psb.23207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
StREM1.3 Remorin is a well-established plant raftophilic protein, predominantly associated with sterol- and sphingolipid-rich membrane rafts. We recently identified a C-terminal domain (RemCA) required and sufficient for StREM1.3 anchoring to the plasma membrane. Here, we report a search for homologs and analogs of RemCA domain in publicly available protein sequence and structure databases. We could not identify RemCA homologous domains outside the Remorin family but we identified domains sharing bias in amino-acid composition and predicted structural fold with RemCA in bacterial, viral and animal proteins. These results suggest that RemCA emerged by convergent evolution among unrelated membrane binding domain.
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Affiliation(s)
- Sylvain Raffaele
- Laboratoire des Interactions Plantes-Microorganismes (LIPM); UMR441 INRA-CNRS; Castanet-Tolosan, France
- Correspondence to: Sylvain Raffaele,
| | - Artemis Perraki
- Laboratoire de Biogenese Membraniare; UMR 5200 CNRS; Université Bordeaux Segalen; INRA Bordeaux Aquitaine BP81; Villenave d'Ornon Cédex, France
| | - Sébastien Mongrand
- Laboratoire de Biogenese Membraniare; UMR 5200 CNRS; Université Bordeaux Segalen; INRA Bordeaux Aquitaine BP81; Villenave d'Ornon Cédex, France
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Perraki A, Cacas JL, Crowet JM, Lins L, Castroviejo M, German-Retana S, Mongrand S, Raffaele S. Plasma membrane localization of Solanum tuberosum remorin from group 1, homolog 3 is mediated by conformational changes in a novel C-terminal anchor and required for the restriction of potato virus X movement]. Plant Physiol 2012; 160:624-37. [PMID: 22855937 PMCID: PMC3461544 DOI: 10.1104/pp.112.200519] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Accepted: 07/31/2012] [Indexed: 05/18/2023]
Abstract
The formation of plasma membrane (PM) microdomains plays a crucial role in the regulation of membrane signaling and trafficking. Remorins are a plant-specific family of proteins organized in six phylogenetic groups, and Remorins of group 1 are among the few plant proteins known to specifically associate with membrane rafts. As such, they are valuable to understand the molecular bases for PM lateral organization in plants. However, little is known about the structural determinants underlying the specific association of group 1 Remorins with membrane rafts. We used a structure-function approach to identify a short C-terminal anchor (RemCA) indispensable and sufficient for tight direct binding of potato (Solanum tuberosum) REMORIN 1.3 (StREM1.3) to the PM. RemCA switches from unordered to α-helical structure in a nonpolar environment. Protein structure modeling indicates that RemCA folds into a tight hairpin of amphipathic helices. Consistently, mutations reducing RemCA amphipathy abolished StREM1.3 PM localization. Furthermore, RemCA directly binds to biological membranes in vitro, shows higher affinity for Detergent-Insoluble Membranes lipids, and targets yellow fluorescent protein to Detergent-Insoluble Membranes in vivo. Mutations in RemCA resulting in cytoplasmic StREM1.3 localization abolish StREM1.3 function in restricting potato virus X movement. The mechanisms described here provide new insights on the control and function of lateral segregation of plant PM.
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Simon-Plas F, Perraki A, Bayer E, Gerbeau-Pissot P, Mongrand S. An update on plant membrane rafts. Curr Opin Plant Biol 2011; 14:642-9. [PMID: 21903451 DOI: 10.1016/j.pbi.2011.08.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 08/12/2011] [Accepted: 08/17/2011] [Indexed: 05/18/2023]
Abstract
The dynamic segregation of membrane components within microdomains, such as the sterol-enriched and sphingolipid-enriched membrane rafts, emerges as a central regulatory mechanism governing physiological responses in various organisms. Over the past five years, plasma membrane located raft-like domains have been described in several plant species. The protein and lipid compositions of detergent-insoluble membranes, supposed to contain these domains, have been extensively characterised. Imaging methods have shown that lateral segregation of lipids and proteins exists at the nanoscale level at the plant plasma membrane, correlating detergent insolubility and membrane-domain localisation of presumptive raft proteins. Finally, the dynamic association of specific proteins with detergent-insoluble membranes upon environmental stress has been reported, confirming a possible role for plant rafts as signal transduction platforms, particularly during biotic interactions.
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Affiliation(s)
- Françoise Simon-Plas
- UMR Plante-Microbe-Environnement 1088, Institut National de la Recherche Agronomique-5184, CNRS-Université de Bourgogne, 21065 Dijon Cedex, France
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