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Boerjan W, Burlat V, Cosgrove DJ, Dunand C, Dupree P, Haas KT, Ingram G, Jamet E, Mohnen D, Moussu S, Peaucelle A, Persson S, Voiniciuc C, Höfte H. Top five unanswered questions in plant cell surface research. Cell Surf 2024; 11:100121. [PMID: 38405175 PMCID: PMC10885547 DOI: 10.1016/j.tcsw.2024.100121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/12/2024] [Accepted: 02/12/2024] [Indexed: 02/27/2024] Open
Abstract
Plant cell wall researchers were asked their view on what the major unanswered questions are in their field. This article summarises the feedback that was received from them in five questions. In this issue you can find equivalent syntheses for researchers working on bacterial, unicellular parasite and fungal systems.
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Affiliation(s)
- Wout Boerjan
- Ghent University, Department of Plant Biotechnology and Bioinformatics, Technologiepark 71, 9052 Gent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Gent, Belgium
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | - Daniel J. Cosgrove
- Department of Biology, Pennsylvania State University, University Park, PA 16870, the United States of America
| | - Christophe Dunand
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | - Paul Dupree
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1QW, UK
| | - Kalina T. Haas
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), 78000, Versailles, France
| | - Gwyneth Ingram
- Laboratoire Reproduction et Développement des Plantes, ENS de Lyon, CNRS, INRAE, UCBL, Lyon, France
| | - Elisabeth Jamet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | - Debra Mohnen
- Complex Carbohydrate Research Center and Department of Biochemistry and Molecular Biology, University of Georgia, Athens, GA 30602, USA
| | - Steven Moussu
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | - Alexis Peaucelle
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), 78000, Versailles, France
| | - Staffan Persson
- Copenhagen Plant Science Center (CPSC), Department of Plant & Environmental Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Cătălin Voiniciuc
- Horticultural Sciences Department, University of Florida, Gainesville, FL 32611, the United States of America
| | - Herman Höfte
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), 78000, Versailles, France
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Dauphin BG, Ropartz D, Ranocha P, Rouffle M, Carton C, Le Ru A, Martinez Y, Fourquaux I, Ollivier S, Mac-Bear J, Trezel P, Geairon A, Jamet E, Dunand C, Pelloux J, Ralet MC, Burlat V. TBL38 atypical homogalacturonan-acetylesterase activity and cell wall microdomain localization in Arabidopsis seed mucilage secretory cells. iScience 2024; 27:109666. [PMID: 38665206 PMCID: PMC11043868 DOI: 10.1016/j.isci.2024.109666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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] [Received: 10/31/2023] [Revised: 02/16/2024] [Accepted: 04/02/2024] [Indexed: 04/28/2024] Open
Abstract
Plant cell walls constitute complex polysaccharidic/proteinaceous networks whose biosynthesis and dynamics implicate several cell compartments. The synthesis and remodeling of homogalacturonan pectins involve Golgi-localized methylation/acetylation and subsequent cell wall-localized demethylation/deacetylation. So far, TRICHOME BIREFRINGENCE-LIKE (TBL) family members have been described as Golgi-localized acetyltransferases targeting diverse hemicelluloses or pectins. Using seed mucilage secretory cells (MSCs) from Arabidopsis thaliana, we demonstrate the atypical localization of TBL38 restricted to a cell wall microdomain. A tbl38 mutant displays an intriguing homogalacturonan immunological phenotype in this cell wall microdomain and in an MSC surface-enriched abrasion powder. Mass spectrometry oligosaccharide profiling of this fraction reveals an increased homogalacturonan acetylation phenotype. Finally, TBL38 displays pectin acetylesterase activity in vitro. These results indicate that TBL38 is an atypical cell wall-localized TBL that displays a homogalacturonan acetylesterase activity rather than a Golgi-localized acetyltransferase activity as observed in previously studied TBLs. TBL38 function during seed development is discussed.
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Affiliation(s)
- Bastien G. Dauphin
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UT3-CNRS- INPT, Auzeville-Tolosane, France
| | - David Ropartz
- INRAE, UR BIA, F-44316 Nantes, France
- INRAE, BIBS Facility, PROBE Research Infrastructure, Nantes, France
| | - Philippe Ranocha
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UT3-CNRS- INPT, Auzeville-Tolosane, France
| | - Maxime Rouffle
- UMR INRAE 1158 BioEcoAgro Biologie des Plantes et Innovation, Université de Picardie Jules Verne, Amiens, France
| | - Camille Carton
- UMR INRAE 1158 BioEcoAgro Biologie des Plantes et Innovation, Université de Picardie Jules Verne, Amiens, France
| | - Aurélie Le Ru
- Plateforme Imagerie-Microscopie, CNRS, Université de Toulouse, UT3-CNRS, Fédération de Recherche FR3450 - Agrobiosciences, Interactions et Biodiversité, Auzeville-Tolosane, France
| | - Yves Martinez
- Plateforme Imagerie-Microscopie, CNRS, Université de Toulouse, UT3-CNRS, Fédération de Recherche FR3450 - Agrobiosciences, Interactions et Biodiversité, Auzeville-Tolosane, France
| | - Isabelle Fourquaux
- Centre de Microscopie Electronique Appliquée la Biologie (CMEAB), Faculté de Médecine Rangueil, UT3, Toulouse, France
| | - Simon Ollivier
- INRAE, UR BIA, F-44316 Nantes, France
- INRAE, BIBS Facility, PROBE Research Infrastructure, Nantes, France
| | - Jessica Mac-Bear
- INRAE, UR BIA, F-44316 Nantes, France
- INRAE, BIBS Facility, PROBE Research Infrastructure, Nantes, France
| | - Pauline Trezel
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UT3-CNRS- INPT, Auzeville-Tolosane, France
- UMR INRAE 1158 BioEcoAgro Biologie des Plantes et Innovation, Université de Picardie Jules Verne, Amiens, France
| | | | - Elisabeth Jamet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UT3-CNRS- INPT, Auzeville-Tolosane, France
| | - Christophe Dunand
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UT3-CNRS- INPT, Auzeville-Tolosane, France
| | - Jérôme Pelloux
- UMR INRAE 1158 BioEcoAgro Biologie des Plantes et Innovation, Université de Picardie Jules Verne, Amiens, France
| | | | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, UT3-CNRS- INPT, Auzeville-Tolosane, France
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3
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Viudes S, Zamar R, Burlat V, Roux F, Dunand C. Genome wide association study of Arabidopsis seed mucilage layers at a regional scale. Plant Physiol Biochem 2024; 207:108375. [PMID: 38364630 DOI: 10.1016/j.plaphy.2024.108375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/10/2024] [Accepted: 01/13/2024] [Indexed: 02/18/2024]
Abstract
The myxospermous species Arabidopsis thaliana extrudes a polysaccharidic mucilage from the seed coat epidermis during imbibition. The whole seed mucilage can be divided into a seed-adherent layer and a fully soluble layer, both layers presenting natural genetic variations. The adherent mucilage is variable in size and composition, while the soluble mucilage is variable in composition and physical properties. Studies reporting both the genetic architecture and the putative selective agents acting on this natural genetic variation are scarce. In this study, we set up a Genome Wide Association study (GWAS) based on 424 natural accessions collected from 166 natural populations of A. thaliana located south-west of France and previously characterized for a very important number of abiotic and biotic factors. We identified an extensive genetic variation for both mucilage layers. The adherent mucilage was mainly related to precipitation and temperature whereas the non-adherent mucilage was unrelated to any environmental factors. By combining a hierarchical Bayesian model with a local score approach, we identified 55 and 28 candidate genes, corresponding to 26 and 10 QTLs for the adherent and non-adherent mucilages, respectively. Putative or characterized function and expression data available in the literature were used to filter the candidate genes. Only one gene among our set of candidate genes was already described as a seed mucilage actor, leaving a large set of new candidates putatively implicated inseed mucilage synthesis or release. The present study lay out foundation to understand the influence of regional ecological factors acting on seed mucilage in A. thaliana.
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Affiliation(s)
- Sébastien Viudes
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, Université Paul Sabatier Toulouse 3, Toulouse INP, Auzeville-Tolosane, France
| | - Rémy Zamar
- Laboratoire des Interactions Plantes-Microbes-Environnement, INRAE, CNRS, Université de Toulouse, Castanet-Tolosan, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, Université Paul Sabatier Toulouse 3, Toulouse INP, Auzeville-Tolosane, France
| | - Fabrice Roux
- Laboratoire des Interactions Plantes-Microbes-Environnement, INRAE, CNRS, Université de Toulouse, Castanet-Tolosan, France
| | - Christophe Dunand
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, Université Paul Sabatier Toulouse 3, Toulouse INP, Auzeville-Tolosane, France.
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4
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Burlat V, Papon N, Courdavault V. Medicinal plants enter the single-cell multi-omics era. Trends Plant Sci 2023; 28:1205-1207. [PMID: 37625948 DOI: 10.1016/j.tplants.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/07/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023]
Abstract
Elucidating biosynthetic pathways of plant specialized metabolites is a tricky but essential task for the biotechnological production of plant drugs. In a new report, Li et al. used a single-cell multi-omics approach to provide an integrative view of the architecture and regulation of anticancer alkaloid routes in Madagascar periwinkle.
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Affiliation(s)
- Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier Toulouse 3, Institut National Polytechnique de Toulouse, 31320 Auzeville-Tolosane, France
| | - Nicolas Papon
- Univ Angers, Univ Brest, IRF, SFR ICAT, F-49000 Angers, France
| | - Vincent Courdavault
- Biomolécules et Biotechnologies Végétales, BBV, EA2106, Université de Tours, Tours, France.
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5
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Kolkas H, Burlat V, Jamet E. Immunochemical Identification of the Main Cell Wall Polysaccharides of the Early Land Plant Marchantia polymorpha. Cells 2023; 12:1833. [PMID: 37508498 PMCID: PMC10378070 DOI: 10.3390/cells12141833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/30/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Plant primary cell walls are composite structures surrounding the protoplast and containing pectins, hemicelluloses, and cellulose polysaccharides, as well as proteins. Their composition changed during the evolution of the green lineage from algae to terrestrial plants, i.e., from an aquatic to a terrestrial environment. The constraints of life in terrestrial environments have generated new requirements for the organisms, necessitating adaptations, such as cell wall modifications. We have studied the cell wall polysaccharide composition of thalli of Marchantia polymorpha, a bryophyte belonging to one of the first land plant genera. Using a collection of specific antibodies raised against different cell wall polysaccharide epitopes, we were able to identify in polysaccharide-enriched fractions: pectins, including low-methylesterified homogalacturonans; rhamnogalacturonan I with arabinan side-chains; and hemicelluloses, such as xyloglucans with XXLG and XXXG modules, mannans, including galactomannans, and xylans. We could also show the even distribution of XXLG xyloglucans and galactomannans in the cell walls of thalli by immunocytochemistry. These results are discussed with regard to the cell wall proteome composition and in the context of the evolution of the green lineage. The cell wall polysaccharides of M. polymorpha illustrate the transition from the charophyte ancestors of terrestrial plants containing xyloglucans, xylans and mannans as hemicelluloses, and embryophytes which do not exhibit mannans as major primary cell wall polysaccharides.
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Affiliation(s)
- Hasan Kolkas
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | - Elisabeth Jamet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
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6
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Badruna L, Burlat V, Montanier CY. CBMs as Probes to Explore Plant Cell Wall Heterogeneity Using Immunocytochemistry. Methods Mol Biol 2023; 2657:163-179. [PMID: 37149530 DOI: 10.1007/978-1-0716-3151-5_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Immunocytochemistry is a widely used technique to localize antigen within intact tissues. Plant cell walls are complex matrixes of highly decorated polysaccharides and the large number of CBM families displaying specific substrate recognition reflects this complexity. The accessibility of large proteins, such as antibodies, to their cell wall epitopes may be sometimes difficult due to steric hindrance problems. Due to their smaller size, CBMs are interesting alternative probes. The aim of this chapter is to describe the use of CBM as probes to explore complex polysaccharide topochemistry in muro and to quantify enzymatic deconstruction.
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Affiliation(s)
- Louise Badruna
- TBI, Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UT3, INP-ENSAT, Auzeville-Tolosane, France
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7
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Dauphin BG, Ranocha P, Dunand C, Burlat V. Cell-wall microdomain remodeling controls crucial developmental processes. Trends Plant Sci 2022; 27:1033-1048. [PMID: 35710764 DOI: 10.1016/j.tplants.2022.05.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/27/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Plant cell walls display cellular and subcellular specificities. At the subcellular level, wall regional territories with specific compositions are necessary for macroscopic developmental processes. These regional specificities were named differently throughout the years, and are unified here under the term 'cell-wall microdomains' that define the local composition and organization of wall polymers underlying territories of wall loosening and/or softening or stiffening. We review the occurrence and developmental role of wall microdomains in different cell types. We primarily focus on the contribution of two categories of wall-remodeling molecular actors: fine-tuning of homogalacturonan (HG; pectin) demethylesterification patterns and two classes of oxidoreductases [class III peroxidases (CIII PRXs) and laccases (LACs)], but we also highlight two different molecular scaffolds recently identified for positioning specific CIII PRXs.
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Affiliation(s)
- Bastien G Dauphin
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier Toulouse 3, Institut National Polytechnique de Toulouse, 24 chemin de Borde Rouge, 31320 Auzeville-Tolosane, France
| | - Philippe Ranocha
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier Toulouse 3, Institut National Polytechnique de Toulouse, 24 chemin de Borde Rouge, 31320 Auzeville-Tolosane, France
| | - Christophe Dunand
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier Toulouse 3, Institut National Polytechnique de Toulouse, 24 chemin de Borde Rouge, 31320 Auzeville-Tolosane, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier Toulouse 3, Institut National Polytechnique de Toulouse, 24 chemin de Borde Rouge, 31320 Auzeville-Tolosane, France.
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Perello C, Llamas E, Burlat V, Ortiz-Alcaide M, Phillips MA, Pulido P, Rodriguez-Concepcion M. Correction: Differential Subplastidial Localization and Turnover of Enzymes Involved in Isoprenoid Biosynthesis in Chloroplasts. PLoS One 2022; 17:e0274982. [PMID: 36112610 PMCID: PMC9480995 DOI: 10.1371/journal.pone.0274982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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9
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St-Pierre B, Mahroug S, Guirimand G, Courdavault V, Burlat V. RNA In Situ Hybridization of Paraffin Sections to Characterize the Multicellular Compartmentation of Plant Secondary Metabolisms. Methods Mol Biol 2022; 2505:1-32. [PMID: 35732933 DOI: 10.1007/978-1-0716-2349-7_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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] [Indexed: 06/15/2023]
Abstract
As a mean to cope with their potential cytotoxicity for the host plant, secondary metabolisms are often sequestered within specific cell types. This spatial organization may reach complex sequential multicellular compartmentation. The most complex example so far characterized is the sequential multicellular biosynthesis of the anticancer monoterpene indole alkaloids in Catharanthus roseus. RNA in situ hybridization has proven a key technological approach to unravel this complex spatial organization. Pioneer work in 1999 discovered the involvement of epidermis and laticifer/idioblasts in the intermediate and late steps of the pathway, respectively. The localization of the early steps of the pathway to the internal phloem-associated parenchyma later came to complete the three-tissular block organization of the pathway. Since then, RNA in situ hybridization was routinely used to map the gene expression profile of most of the nearly 30 genes involved in this pathway. We introduce here a comparison of advantages and drawbacks of in situ hybridization and more popular promoter: GUS strategies. Two main advantages of in situ hybridization are the suitability to any plant species and the direct localization of transcripts rather than the localization of a promoter activity. We provide a step-by-step protocol describing every details allowing to reach a medium throughput including riboprobe synthesis, paraffin-embedded plant tissue array preparation, prehybridization, in situ hybridization, stringent washing and immunodetection of hybridized probes, and imaging steps. This should be helpful for new comers willing to domesticate the technique. This protocol has no species limitation and is particularly adapted to the increasingly studied model, nonmodel species, nonamenable to promoter::GUS transformation, such as C. roseus.
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Affiliation(s)
- Benoit St-Pierre
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, Tours, France
| | - Samira Mahroug
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, Tours, France
| | - Gregory Guirimand
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, Tours, France
| | - Vincent Courdavault
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, Tours, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Toulouse INP, Toulouse, France.
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10
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Huang B, Hu G, Wang K, Frasse P, Maza E, Djari A, Deng W, Pirrello J, Burlat V, Pons C, Granell A, Li Z, van der Rest B, Bouzayen M. Interaction of two MADS-box genes leads to growth phenotype divergence of all-flesh type of tomatoes. Nat Commun 2021; 12:6892. [PMID: 34824241 PMCID: PMC8616914 DOI: 10.1038/s41467-021-27117-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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] [Received: 06/16/2021] [Accepted: 11/02/2021] [Indexed: 12/19/2022] Open
Abstract
All-flesh tomato cultivars are devoid of locular gel and exhibit enhanced firmness and improved postharvest storage. Here, we show that SlMBP3 is a master regulator of locular tissue in tomato fruit and that a deletion at the gene locus underpins the All-flesh trait. Intriguingly, All-flesh varieties lack the deleterious phenotypes reported previously for SlMBP3 under-expressing lines and which preclude any potential commercial use. We resolve the causal factor for this phenotypic divergence through the discovery of a natural mutation at the SlAGL11 locus, a close homolog of SlMBP3. Misexpressing SlMBP3 impairs locular gel formation through massive transcriptomic reprogramming at initial phases of fruit development. SlMBP3 influences locule gel formation by controlling cell cycle and cell expansion genes, indicating that important components of fruit softening are determined at early pre-ripening stages. Our findings define potential breeding targets for improved texture in tomato and possibly other fleshy fruits.
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Affiliation(s)
- Baowen Huang
- grid.508721.9Université de Toulouse, INRAe/INP Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Avenue de l’Agrobiopole, Castanet-Tolosan, F-31326 France ,grid.15781.3a0000 0001 0723 035XLaboratoire de Recherche en Sciences Végétales - UMR5546, Université de Toulouse, CNRS, UPS, Toulouse, INP France
| | - Guojian Hu
- grid.508721.9Université de Toulouse, INRAe/INP Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Avenue de l’Agrobiopole, Castanet-Tolosan, F-31326 France ,grid.15781.3a0000 0001 0723 035XLaboratoire de Recherche en Sciences Végétales - UMR5546, Université de Toulouse, CNRS, UPS, Toulouse, INP France
| | - Keke Wang
- grid.508721.9Université de Toulouse, INRAe/INP Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Avenue de l’Agrobiopole, Castanet-Tolosan, F-31326 France ,grid.15781.3a0000 0001 0723 035XLaboratoire de Recherche en Sciences Végétales - UMR5546, Université de Toulouse, CNRS, UPS, Toulouse, INP France
| | - Pierre Frasse
- grid.508721.9Université de Toulouse, INRAe/INP Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Avenue de l’Agrobiopole, Castanet-Tolosan, F-31326 France ,grid.15781.3a0000 0001 0723 035XLaboratoire de Recherche en Sciences Végétales - UMR5546, Université de Toulouse, CNRS, UPS, Toulouse, INP France
| | - Elie Maza
- grid.508721.9Université de Toulouse, INRAe/INP Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Avenue de l’Agrobiopole, Castanet-Tolosan, F-31326 France ,grid.15781.3a0000 0001 0723 035XLaboratoire de Recherche en Sciences Végétales - UMR5546, Université de Toulouse, CNRS, UPS, Toulouse, INP France
| | - Anis Djari
- grid.508721.9Université de Toulouse, INRAe/INP Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Avenue de l’Agrobiopole, Castanet-Tolosan, F-31326 France ,grid.15781.3a0000 0001 0723 035XLaboratoire de Recherche en Sciences Végétales - UMR5546, Université de Toulouse, CNRS, UPS, Toulouse, INP France
| | - Wei Deng
- grid.190737.b0000 0001 0154 0904Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, 401331 Chongqing, China
| | - Julien Pirrello
- grid.508721.9Université de Toulouse, INRAe/INP Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Avenue de l’Agrobiopole, Castanet-Tolosan, F-31326 France ,grid.15781.3a0000 0001 0723 035XLaboratoire de Recherche en Sciences Végétales - UMR5546, Université de Toulouse, CNRS, UPS, Toulouse, INP France
| | - Vincent Burlat
- grid.15781.3a0000 0001 0723 035XLaboratoire de Recherche en Sciences Végétales - UMR5546, Université de Toulouse, CNRS, UPS, Toulouse, INP France
| | - Clara Pons
- grid.4711.30000 0001 2183 4846Instituto de Biología Molecular y Cellular de Plantas, Consejo Superior de Investigaciones Cientificas- Universidad Politécnica de Valencia, 46022 Valencia, Spain
| | - Antonio Granell
- grid.4711.30000 0001 2183 4846Instituto de Biología Molecular y Cellular de Plantas, Consejo Superior de Investigaciones Cientificas- Universidad Politécnica de Valencia, 46022 Valencia, Spain
| | - Zhengguo Li
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, 401331, Chongqing, China. .,Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, 401331, Chongqing, China.
| | - Benoît van der Rest
- Université de Toulouse, INRAe/INP Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Avenue de l'Agrobiopole, Castanet-Tolosan, F-31326, France. .,Laboratoire de Recherche en Sciences Végétales - UMR5546, Université de Toulouse, CNRS, UPS, Toulouse, INP, France.
| | - Mondher Bouzayen
- Université de Toulouse, INRAe/INP Toulouse, UMR990 Génomique et Biotechnologie des Fruits, Avenue de l'Agrobiopole, Castanet-Tolosan, F-31326, France. .,Laboratoire de Recherche en Sciences Végétales - UMR5546, Université de Toulouse, CNRS, UPS, Toulouse, INP, France. .,Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, 401331, Chongqing, China.
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11
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Badruna L, Burlat V, Roblin P, Enjalbert T, Lippens G, Venditto I, O'Donohue MJ, Montanier CY. The Jo-In protein welding system is a relevant tool to create CBM-containing plant cell wall degrading enzymes. N Biotechnol 2021; 65:31-41. [PMID: 34352412 DOI: 10.1016/j.nbt.2021.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 07/27/2021] [Accepted: 07/29/2021] [Indexed: 11/16/2022]
Abstract
Irrespective of their biological origin, most proteins are composed of several elementary domains connected by linkers. These domains are either functionally independent units, or part of larger multidomain structures whose functions are defined by their spatial proximity. Carbohydrate-degrading enzymes provide examples of a range of multidomain structures, in which catalytic protein domains are frequently appended to one or more non-catalytic carbohydrate-binding modules which specifically bind to carbohydrate motifs. While the carbohydrate-binding specificity of these modules is clear, their function is not fully elucidated. Herein, an original approach to tackle the study of carbohydrate-binding modules using the Jo-In biomolecular welding protein pair is presented. To provide a proof of concept, recombinant xylanases appended to two different carbohydrate-binding modules have been created and produced. The data reveal the biochemical properties of four xylanase variants and provide the basis for correlating enzyme activity to structural properties and to the nature of the substrate and the ligand specificity of the appended carbohydrate-binding module. It reveals that specific spatial arrangements favour activity on soluble polymeric substrates and that activity on such substrates does not predict the behaviour of multimodular enzymes on insoluble plant cell wall samples. The results highlight that the Jo-In protein welding system is extremely useful to design multimodular enzyme systems, especially to create rigid conformations that decrease the risk of intermodular interference. Further work on Jo-In will target the introduction of varying degrees of flexibility, providing the means to study this property and the way it may influence multimodular enzyme functions.
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Affiliation(s)
- Louise Badruna
- TBI, Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Toulouse INP, 24 chemin de Borde Rouge, 31320, Auzeville-Tolosane, France
| | - Pierre Roblin
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Thomas Enjalbert
- TBI, Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France
| | - Guy Lippens
- TBI, Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France
| | - Immacolata Venditto
- Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
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12
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Viudes S, Burlat V, Dunand C. Seed mucilage evolution: Diverse molecular mechanisms generate versatile ecological functions for particular environments. Plant Cell Environ 2020; 43:2857-2870. [PMID: 32557703 DOI: 10.1111/pce.13827] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/12/2020] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
Plant myxodiasporous species have the ability to release a polysaccharidic mucilage upon imbibition of the seed (myxospermy) or the fruit (myxocarpy). This is a widespread capacity in angiosperms providing multiple ecological functions including higher germination efficiency under environmental stresses. It is unclear whether myxodiaspory has one or multiple evolutionary origins and why it was supposedly lost in several species. Here, we summarize recent advances on three main aspects of myxodiaspory. (a) It represents a combination of highly diverse traits at different levels of observation, ranging from the dual tissular origin of mucilage secretory cells to diverse mucilage polysaccharidic composition and ultrastructural organization. (b) An asymmetrical selection pressure is exerted on myxospermy-related genes that were first identified in Arabidopsis thaliana. The A. thaliana and the flax intra-species mucilage variants show that myxospermy is a fast-evolving trait due to high polymorphism in a few genes directly acting on mucilage establishment. In A. thaliana, these actors are downstream of a master regulatory complex and an original phylogenetic overview provided here illustrates that this complex has sequentially evolved after the common ancestor of seed plants and was fully established in the common ancestor of the rosid clade. (c) Newly identified myxodiaspory ecological functions indicate new perspectives such as soil microorganism control and plant establishment support.
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Affiliation(s)
- Sébastien Viudes
- Laboratoire de Recherche en Sciences Végétales, CNRS, UPS, Université de Toulouse, Castanet-Tolosan, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, CNRS, UPS, Université de Toulouse, Castanet-Tolosan, France
| | - Christophe Dunand
- Laboratoire de Recherche en Sciences Végétales, CNRS, UPS, Université de Toulouse, Castanet-Tolosan, France
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13
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Graças JP, Ranocha P, Vitorello VA, Savelli B, Jamet E, Dunand C, Burlat V. The Class III Peroxidase Encoding Gene AtPrx62 Positively and Spatiotemporally Regulates the Low pH-Induced Cell Death in Arabidopsis thaliana Roots. Int J Mol Sci 2020; 21:ijms21197191. [PMID: 33003393 PMCID: PMC7582640 DOI: 10.3390/ijms21197191] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 09/23/2020] [Accepted: 09/25/2020] [Indexed: 12/15/2022] Open
Abstract
Exogenous low pH stress causes cell death in root cells, limiting root development, and agricultural production. Different lines of evidence suggested a relationship with cell wall (CW) remodeling players. We investigated whether class III peroxidase (CIII Prx) total activity, CIII Prx candidate gene expression, and reactive oxygen species (ROS) could modify CW structure during low pH-induced cell death in Arabidopsis thaliana roots. Wild-type roots displayed a good spatio-temporal correlation between the low pH-induced cell death and total CIII Prx activity in the early elongation (EZs), transition (TZs), and meristematic (MZs) zones. In situ mRNA hybridization showed that AtPrx62 transcripts accumulated only in roots treated at pH 4.6 in the same zones where cell death was induced. Furthermore, roots of the atprx62-1 knockout mutant showed decreased cell mortality under low pH compared to wild-type roots. Among the ROS, there was a drastic decrease in O2●− levels in the MZs of wild-type and atprx62-1 roots upon low pH stress. Together, our data demonstrate that AtPrx62 expression is induced by low pH and that the produced protein could positively regulate cell death. Whether the decrease in O2●− level is related to cell death induced upon low pH treatment remains to be elucidated.
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Affiliation(s)
- Jonathas Pereira Graças
- Escola Superior de Agricultura "Luiz de Queiroz", University of São Paulo, 13418-900 São Paulo, Brazil
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, 31320 Auzeville-Tolosane, France
| | - Philippe Ranocha
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, 31320 Auzeville-Tolosane, France
| | | | - Bruno Savelli
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, 31320 Auzeville-Tolosane, France
| | - Elisabeth Jamet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, 31320 Auzeville-Tolosane, France
| | - Christophe Dunand
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, 31320 Auzeville-Tolosane, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, 31320 Auzeville-Tolosane, France
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14
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Jemmat AM, Ranocha P, Le Ru A, Neel M, Jauneau A, Raggi S, Ferrari S, Burlat V, Dunand C. Coordination of five class III peroxidase-encoding genes for early germination events of Arabidopsis thaliana. Plant Sci 2020; 298:110565. [PMID: 32771166 DOI: 10.1016/j.plantsci.2020.110565] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/10/2020] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
The Class III peroxidases (CIII Prxs) belong to a plant-specific multigene family. Thanks to their double catalytic cycle they can oxidize compounds or release reactive oxygen species (ROS). They are either involved in different cell wall stiffening processes such as lignification and suberization, in cell wall loosening or defense mechanisms. Germination is an important developmental stage requiring specific peroxidase activity. However, little is known about which isoforms are involved. Five CIII Prx encoding genes: AtPrx04, AtPrx16, AtPrx62, AtPrx69, and AtPrx71 were identified from published microarray data mining. Delayed or induced testa and endosperm rupture were observed for the corresponding CIII Prx mutant lines indicating either a gene-specific inducing or repressing role during germination, respectively. Via in situ hybridization AtPrx16, AtPrx62, AtPrx69 and AtPrx71 transcripts were exclusively localized to the micropylar endosperm facing the radicle, and transcriptomic data analysis enabled positioning the five CIII Prxs in a co-expression network enriched in germination, cell wall, cell wall proteins and xyloglucan hits. Evidence were produced showing that the five CIII Prxs were cell wall-targeted proteins and that the micropylar endosperm displayed a complex cell wall domain topochemistry. Finally, we drew a spatio-temporal model highlighting the fine sequential gene expression and the possible involvement of micropylar endosperm cell wall domains to explain the non-redundant cell wall stiffening and loosening functions of the CIII Prxs in a single cell type. We also highlighted the necessity of a peroxidase homeostasis to accurately control the micropylar endosperm cell wall dynamics during Arabidopsis germination events.
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Affiliation(s)
- Achraf M Jemmat
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326, Castanet-Tolosan, France.
| | - Philippe Ranocha
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326, Castanet-Tolosan, France.
| | - Aurélie Le Ru
- Fédération de Recherche 3450, Plateforme Imagerie, Pôle de Biotechnologie Végétale, Castanet-Tolosan, 31326, France.
| | - Maxime Neel
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326, Castanet-Tolosan, France.
| | - Alain Jauneau
- Fédération de Recherche 3450, Plateforme Imagerie, Pôle de Biotechnologie Végétale, Castanet-Tolosan, 31326, France
| | - Sara Raggi
- Institute Pasteur-Fondazione Cenci Bolognetti and Dipartimento di Biologia e Biotecnologie "Charles Darwin", Sapienza Università di Roma, 00185, Rome, Italy.
| | - Simone Ferrari
- Institute Pasteur-Fondazione Cenci Bolognetti and Dipartimento di Biologia e Biotecnologie "Charles Darwin", Sapienza Università di Roma, 00185, Rome, Italy.
| | - Vincent Burlat
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326, Castanet-Tolosan, France; Fédération de Recherche 3450, Plateforme Imagerie, Pôle de Biotechnologie Végétale, Castanet-Tolosan, 31326, France; Institute Pasteur-Fondazione Cenci Bolognetti and Dipartimento di Biologia e Biotecnologie "Charles Darwin", Sapienza Università di Roma, 00185, Rome, Italy.
| | - Christophe Dunand
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326, Castanet-Tolosan, France; Fédération de Recherche 3450, Plateforme Imagerie, Pôle de Biotechnologie Végétale, Castanet-Tolosan, 31326, France; Institute Pasteur-Fondazione Cenci Bolognetti and Dipartimento di Biologia e Biotecnologie "Charles Darwin", Sapienza Università di Roma, 00185, Rome, Italy.
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15
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Guirimand G, Guihur A, Perello C, Phillips M, Mahroug S, Oudin A, Dugé de Bernonville T, Besseau S, Lanoue A, Giglioli-Guivarc’h N, Papon N, St-Pierre B, Rodríguez-Concepcíon M, Burlat V, Courdavault V. Cellular and Subcellular Compartmentation of the 2 C-Methyl-D-Erythritol 4-Phosphate Pathway in the Madagascar Periwinkle. Plants (Basel) 2020; 9:E462. [PMID: 32272573 PMCID: PMC7238098 DOI: 10.3390/plants9040462] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 12/12/2022]
Abstract
The Madagascar periwinkle (Catharanthus roseus) synthesizes the highly valuable monoterpene indole alkaloids (MIAs) through a long metabolic route initiated by the 2C-methyl-D-erythritol 4-phosphate (MEP) pathway. In leaves, a complex compartmentation of the MIA biosynthetic pathway occurs at both the cellular and subcellular levels, notably for some gene products of the MEP pathway. To get a complete overview of the pathway organization, we cloned four genes encoding missing enzymes involved in the MEP pathway before conducting a systematic analysis of transcript distribution and protein subcellular localization. RNA in situ hybridization revealed that all MEP pathway genes were coordinately and mainly expressed in internal phloem-associated parenchyma of young leaves, reinforcing the role of this tissue in MIA biosynthesis. At the subcellular level, transient cell transformation and expression of fluorescent protein fusions showed that all MEP pathway enzymes were targeted to plastids. Surprisingly, two isoforms of 1-deoxy-D-xylulose 5-phosphate synthase and 1-deoxy-D-xylulose 5-phosphate reductoisomerase initially exhibited an artifactual aggregated pattern of localization due to high protein accumulation. Immunogold combined with transmission electron microscopy, transient transformations performed with a low amount of transforming DNA and fusion/deletion experiments established that both enzymes were rather diffuse in stroma and stromules of plastids as also observed for the last six enzymes of the pathway. Taken together, these results provide new insights into a potential role of stromules in enhancing MIA precursor exchange with other cell compartments to favor metabolic fluxes towards the MIA biosynthesis.
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Affiliation(s)
- Grégory Guirimand
- Biomolécules et Biotechnologies Végétales, EA 2106, Département of Agronomie, productions animale et végétale et agro-alimentaire, Université de Tours, 31 avenue Monge, 37200 Tours, France; (G.G.); (A.G.); (S.M.); (A.O.); (T.D.d.B.); (S.B.); (A.L.); (N.G.-G.); (B.S.-P.)
- Graduate School of Science, Technology & Innovation, Kobe University, Kobe 657-8501, Japan
| | - Anthony Guihur
- Biomolécules et Biotechnologies Végétales, EA 2106, Département of Agronomie, productions animale et végétale et agro-alimentaire, Université de Tours, 31 avenue Monge, 37200 Tours, France; (G.G.); (A.G.); (S.M.); (A.O.); (T.D.d.B.); (S.B.); (A.L.); (N.G.-G.); (B.S.-P.)
- Department of Plant Molecular Biology, Faculty of Biology and Medicine, University of Lausanne, 1007 Lausanne, Switzerland
| | - Catalina Perello
- Program of Plant Metabolism and Metabolic Engineering, Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, 08193 Barcelona, Spain; (C.P.); (M.R.-C.)
| | - Michael Phillips
- Department of Biology, University of Toronto–Mississauga, Mississauga, 3359 Mississauga Road, ON L5L 1C6, Canada;
| | - Samira Mahroug
- Biomolécules et Biotechnologies Végétales, EA 2106, Département of Agronomie, productions animale et végétale et agro-alimentaire, Université de Tours, 31 avenue Monge, 37200 Tours, France; (G.G.); (A.G.); (S.M.); (A.O.); (T.D.d.B.); (S.B.); (A.L.); (N.G.-G.); (B.S.-P.)
- Department of Environment Sciences, University of Sidi-Bel-Abbes, 22000 Sidi Bel Abbès, Algeria
| | - Audrey Oudin
- Biomolécules et Biotechnologies Végétales, EA 2106, Département of Agronomie, productions animale et végétale et agro-alimentaire, Université de Tours, 31 avenue Monge, 37200 Tours, France; (G.G.); (A.G.); (S.M.); (A.O.); (T.D.d.B.); (S.B.); (A.L.); (N.G.-G.); (B.S.-P.)
| | - Thomas Dugé de Bernonville
- Biomolécules et Biotechnologies Végétales, EA 2106, Département of Agronomie, productions animale et végétale et agro-alimentaire, Université de Tours, 31 avenue Monge, 37200 Tours, France; (G.G.); (A.G.); (S.M.); (A.O.); (T.D.d.B.); (S.B.); (A.L.); (N.G.-G.); (B.S.-P.)
| | - Sébastien Besseau
- Biomolécules et Biotechnologies Végétales, EA 2106, Département of Agronomie, productions animale et végétale et agro-alimentaire, Université de Tours, 31 avenue Monge, 37200 Tours, France; (G.G.); (A.G.); (S.M.); (A.O.); (T.D.d.B.); (S.B.); (A.L.); (N.G.-G.); (B.S.-P.)
| | - Arnaud Lanoue
- Biomolécules et Biotechnologies Végétales, EA 2106, Département of Agronomie, productions animale et végétale et agro-alimentaire, Université de Tours, 31 avenue Monge, 37200 Tours, France; (G.G.); (A.G.); (S.M.); (A.O.); (T.D.d.B.); (S.B.); (A.L.); (N.G.-G.); (B.S.-P.)
| | - Nathalie Giglioli-Guivarc’h
- Biomolécules et Biotechnologies Végétales, EA 2106, Département of Agronomie, productions animale et végétale et agro-alimentaire, Université de Tours, 31 avenue Monge, 37200 Tours, France; (G.G.); (A.G.); (S.M.); (A.O.); (T.D.d.B.); (S.B.); (A.L.); (N.G.-G.); (B.S.-P.)
| | - Nicolas Papon
- Groupe d’Etude des Interactions Hôte-Pathogène (GEIHP, EA 3142), SFR ICAT 4208, Université d’Angers, UNIV. Brest, F-49333 Angers, France;
| | - Benoit St-Pierre
- Biomolécules et Biotechnologies Végétales, EA 2106, Département of Agronomie, productions animale et végétale et agro-alimentaire, Université de Tours, 31 avenue Monge, 37200 Tours, France; (G.G.); (A.G.); (S.M.); (A.O.); (T.D.d.B.); (S.B.); (A.L.); (N.G.-G.); (B.S.-P.)
| | - Manuel Rodríguez-Concepcíon
- Program of Plant Metabolism and Metabolic Engineering, Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, 08193 Barcelona, Spain; (C.P.); (M.R.-C.)
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet Tolosan, France;
| | - Vincent Courdavault
- Biomolécules et Biotechnologies Végétales, EA 2106, Département of Agronomie, productions animale et végétale et agro-alimentaire, Université de Tours, 31 avenue Monge, 37200 Tours, France; (G.G.); (A.G.); (S.M.); (A.O.); (T.D.d.B.); (S.B.); (A.L.); (N.G.-G.); (B.S.-P.)
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16
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Jacq A, Burlat V, Jamet E. Plant Cell Wall Proteomics as a Strategy to Reveal Candidate Proteins Involved in Extracellular Lipid Metabolism. Curr Protein Pept Sci 2018; 19:190-199. [PMID: 28925901 DOI: 10.2174/1389203718666170918152859] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/29/2017] [Accepted: 09/05/2017] [Indexed: 11/22/2022]
Abstract
Plant cell walls are composite structures surrounding cells and involved in both mechanical support and perception of their environment. They are mainly composed of polysaccharides (90-95% of their mass) and proteins (5-10%). The cell wall proteins (CWPs) contribute to the arrangements and modifications of polymer networks and to cell-to-cell communication. The structure and composition of cell walls are not uniform in the whole plants, but rather specialized in different cell types to fulfil different functions. As examples, two kinds of cells are covered with extracellular structures composed of lipids: epidermal cells of aerial organs synthesize a cuticle on their outside surface whereas endodermal root cells form a suberin surrounding strip. In both cases, these particular hydrophobic layers contribute to the protection of the cells against attacks by pathogens or abiotic stresses and regulate physiological processes. If the intracellular biosynthesis of the molecules forming these layers starts to be welldescribed, the mechanisms of their assembly beyond the plasma membrane remain largely unknown. In this review, this issue is addressed on the basis on cell wall proteomics data which has allowed the identification of many CWPs possibly related to lipid metabolism during the last years, in particular in Arabidopsis thaliana and tomato. These data are combined with transcriptomics and genetics studies. The main known roles of extracellular proteins related to lipid metabolism are discussed.
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Affiliation(s)
- Adelaide Jacq
- Laboratoire de Recherche en Sciences Vegetales, Universite de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet Tolosan, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Vegetales, Universite de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet Tolosan, France
| | - Elisabeth Jamet
- Laboratoire de Recherche en Sciences Vegetales, Universite de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet Tolosan, France
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17
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Duruflé H, Hervé V, Ranocha P, Balliau T, Zivy M, Chourré J, San Clemente H, Burlat V, Albenne C, Déjean S, Jamet E, Dunand C. Cell wall modifications of two Arabidopsis thaliana ecotypes, Col and Sha, in response to sub-optimal growth conditions: An integrative study. Plant Sci 2017; 263:183-193. [PMID: 28818374 DOI: 10.1016/j.plantsci.2017.07.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 07/12/2017] [Accepted: 07/18/2017] [Indexed: 05/20/2023]
Abstract
With the global temperature change, plant adaptations are predicted, but little is known about the molecular mechanisms underlying them. Arabidopsis thaliana is a model plant adapted to various environmental conditions, in particular able to develop along an altitudinal gradient. Two ecotypes, Columbia (Col) growing at low altitude, and Shahdara (Sha) growing at 3400m, have been studied at optimal and sub-optimal growth temperature (22°C vs 15°C). Macro- and micro-phenotyping, cell wall monosaccharides analyses, cell wall proteomics, and transcriptomics have been performed in order to accomplish an integrative analysis. The analysis has been focused on cell walls (CWs) which are assumed to play roles in response to environmental changes. At 15°C, both ecotypes presented characteristic morphological traits of low temperature growth acclimation such as reduced rosette diameter, increased number of leaves, modifications of their CW composition and cuticle reinforcement. Altogether, the integrative analysis has allowed identifying several candidate genes/proteins possibly involved in the cell wall modifications observed during the temperature acclimation response.
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Affiliation(s)
- Harold Duruflé
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet-Tolosan, France
| | - Vincent Hervé
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet-Tolosan, France
| | - Philippe Ranocha
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet-Tolosan, France
| | - Thierry Balliau
- CNRS, PAPPSO, UMR 0320/UMR 8120 Génétique Végétale, 91190 Gif sur Yvette, France; INRA, PAPPSO, UMR 0320/UMR 8120 Génétique Végétale, 91190 Gif sur Yvette, France
| | - Michel Zivy
- CNRS, PAPPSO, UMR 0320/UMR 8120 Génétique Végétale, 91190 Gif sur Yvette, France; INRA, PAPPSO, UMR 0320/UMR 8120 Génétique Végétale, 91190 Gif sur Yvette, France
| | - Josiane Chourré
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet-Tolosan, France
| | - Hélène San Clemente
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet-Tolosan, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet-Tolosan, France
| | - Cécile Albenne
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet-Tolosan, France
| | - Sébastien Déjean
- Institut de Mathématique de Toulouse, Université de Toulouse, CNRS, UPS, 31062 Toulouse, France
| | - Elisabeth Jamet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet-Tolosan, France.
| | - Christophe Dunand
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 24 chemin de Borde Rouge, Auzeville, BP42617, 31326 Castanet-Tolosan, France.
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18
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Jacq A, Pernot C, Martinez Y, Domergue F, Payré B, Jamet E, Burlat V, Pacquit VB. The Arabidopsis Lipid Transfer Protein 2 (AtLTP2) Is Involved in Cuticle-Cell Wall Interface Integrity and in Etiolated Hypocotyl Permeability. Front Plant Sci 2017; 8:263. [PMID: 28289427 PMCID: PMC5326792 DOI: 10.3389/fpls.2017.00263] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 02/13/2017] [Indexed: 05/07/2023]
Abstract
Plant non-specific lipid transfer proteins (nsLTPs) belong to a complex multigenic family implicated in diverse physiological processes. However, their function and mode of action remain unclear probably because of functional redundancy. Among the different roles proposed for nsLTPs, it has long been suggested that they could transport cuticular precursor across the cell wall during the formation of the cuticle, which constitutes the first physical barrier for plant interactions with their aerial environment. Here, we took advantage of the Arabidopsis thaliana etiolated hypocotyl model in which AtLTP2 was previously identified as the unique and abundant nsLTP member in the cell wall proteome, to investigate its function. AtLTP2 expression was restricted to epidermal cells of aerial organs, in agreement with the place of cuticle deposition. Furthermore, transient AtLTP2-TagRFP over-expression in Nicotiana benthamiana leaf epidermal cells resulted in its localization to the cell wall, as expected, but surprisingly also to the plastids, indicating an original dual trafficking for a nsLTP. Remarkably, in etiolated hypocotyls, the atltp2-1 mutant displayed modifications in cuticle permeability together with a disorganized ultra-structure at the cuticle-cell wall interface completely recovered in complemented lines, whereas only slight differences in cuticular composition were observed. Thus, AtLTP2 may not play the historical purported nsLTP shuttling role across the cell wall, but we rather hypothesize that AtLTP2 could play a major structural role by maintaining the integrity of the adhesion between the mainly hydrophobic cuticle and the hydrophilic underlying cell wall. Altogether, these results gave new insights into nsLTP functions.
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Affiliation(s)
- Adélaïde Jacq
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS)Castanet-Tolosan, France
| | - Clémentine Pernot
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS)Castanet-Tolosan, France
| | - Yves Martinez
- Plateforme Imagerie-Microscopie, Fédération de Recherche FR3450–Agrobiosciences, Interactions et Biodiversité, Centre National de la Recherche Scientifique (CNRS), Université de Toulouse, Université Paul Sabatier (UPS)Castanet-Tolosan, France
| | - Frédéric Domergue
- Laboratoire de Biogenèse Membranaire, UMR 5200 CNRS Université de Bordeaux–INRA Bordeaux AquitaineVillenave d’Ornon, France
| | - Bruno Payré
- Centre de Microscopie Electronique Appliquée à la Biologie (CMEAB), Faculté de Médecine Rangueil, Toulouse III, Université Paul Sabatier (UPS)Toulouse, France
| | - Elisabeth Jamet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS)Castanet-Tolosan, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS)Castanet-Tolosan, France
| | - Valérie B. Pacquit
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS)Castanet-Tolosan, France
- *Correspondence: Valérie B. Pacquit,
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19
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Abstract
Immunocytochemistry is a widely used technique to localize antigen within intact tissues. Plant cell walls are complex matrixes of highly decorated polysaccharides and the large number of CBM families displaying specific substrate recognition reflects this complexity. The accessibility of large proteins, such as antibodies, to their cell wall epitopes may be sometimes difficult due to steric hindrance problems. Due to their smaller size, CBMs are interesting alternative probes. The aim of this chapter is to describe the use of CBM as probes to explore complex polysaccharide topochemistry in muro and to quantify enzymatic deconstruction.
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Affiliation(s)
- Louise Badruna
- LISBP, Université de Toulouse, CNRS, INRA, INSA, 135 Avenue de Rangueil, 31077, Toulouse, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, UMR 5546 UPS/CNRS, 31326, Castanet-Tolosan, France
| | - Cédric Y Montanier
- LISBP, Université de Toulouse, CNRS, INRA, INSA, 135 Avenue de Rangueil, 31077, Toulouse, France.
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20
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Cosio C, Ranocha P, Francoz E, Burlat V, Zheng Y, Perry SE, Ripoll JJ, Yanofsky M, Dunand C. The class III peroxidase PRX17 is a direct target of the MADS-box transcription factor AGAMOUS-LIKE15 (AGL15) and participates in lignified tissue formation. New Phytol 2017; 213:250-263. [PMID: 27513887 DOI: 10.1111/nph.14127] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 07/03/2016] [Indexed: 05/22/2023]
Abstract
Several physiological functions have been attributed to class III peroxidases (PRXs) in plants, but the in planta role of most members of this family still remains undetermined. Here, we report the first functional characterization of PRX17 (At2g22420), one of the 73 members of this family in Arabidopsis thaliana. Localization of PRX17 was examined by transient expression in Nicotiana benthamiana. Loss- and gain-of-function mutants in A. thaliana were studied. Regulation at the gene and protein levels was analyzed using β-glucuronidase (GUS) activity, quantitative reverse transcriptase (qRT)-PCR, zymography, and chromatin immunoprecipitation. Phenotypes were characterized including lignin and xylan contents. PRX17 was expressed in various tissues, including vascular tissues, and PRX17 was localized to the cell wall. In prx17, the lignin content was reduced in the stem and siliques and bolting was delayed, while the opposite phenotype was observed in 35S:PRX17 plants, together with a significant increase of lignin and xylan immunofluorescence signal. Finally, we demonstrated that the transcription factor AGAMOUS-LIKE15 (AGL15) binds to the PRX17 promoter and regulates PRX17 expression level. This converging set of structural, transcriptomic and physiological data suggests that PRX17, under the control of AGL15, contributes to developmental programs by playing an essential role in regulating age-dependent lignified tissue formation, including changes in cell wall properties.
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Affiliation(s)
- Claudia Cosio
- Division of Biological Sciences, Section Cell & Developmental Biology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Philippe Ranocha
- Laboratoire de Recherche en Sciences Végétales, CNRS, UPS, Université de Toulouse, 24 chemin de Borde Rouge, Auzeville, BP42617, Castanet Tolosan, 31326, France
| | - Edith Francoz
- Laboratoire de Recherche en Sciences Végétales, CNRS, UPS, Université de Toulouse, 24 chemin de Borde Rouge, Auzeville, BP42617, Castanet Tolosan, 31326, France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, CNRS, UPS, Université de Toulouse, 24 chemin de Borde Rouge, Auzeville, BP42617, Castanet Tolosan, 31326, France
| | - Yumei Zheng
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, 40546-0091, USA
| | - Sharyn E Perry
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, 40546-0091, USA
| | - Juan-Jose Ripoll
- Division of Biological Sciences, Section Cell & Developmental Biology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Martin Yanofsky
- Division of Biological Sciences, Section Cell & Developmental Biology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Christophe Dunand
- Laboratoire de Recherche en Sciences Végétales, CNRS, UPS, Université de Toulouse, 24 chemin de Borde Rouge, Auzeville, BP42617, Castanet Tolosan, 31326, France
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21
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Parage C, Foureau E, Kellner F, Burlat V, Mahroug S, Lanoue A, Dugé de Bernonville T, Londono MA, Carqueijeiro I, Oudin A, Besseau S, Papon N, Glévarec G, Atehortùa L, Giglioli-Guivarc'h N, St-Pierre B, Clastre M, O'Connor SE, Courdavault V. Class II Cytochrome P450 Reductase Governs the Biosynthesis of Alkaloids. Plant Physiol 2016; 172:1563-1577. [PMID: 27688619 PMCID: PMC5100751 DOI: 10.1104/pp.16.00801] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 09/27/2016] [Indexed: 05/23/2023]
Abstract
Expansion of the biosynthesis of plant specialized metabolites notably results from the massive recruitment of cytochrome P450s that catalyze multiple types of conversion of biosynthetic intermediates. For catalysis, P450s require a two-electron transfer catalyzed by shared cytochrome P450 oxidoreductases (CPRs), making these auxiliary proteins an essential component of specialized metabolism. CPR isoforms usually group into two distinct classes with different proposed roles, namely involvement in primary and basal specialized metabolisms for class I and inducible specialized metabolism for class II. By studying the role of CPRs in the biosynthesis of monoterpene indole alkaloids, we provide compelling evidence of an operational specialization of CPR isoforms in Catharanthus roseus (Madagascar periwinkle). Global analyses of gene expression correlation combined with transcript localization in specific leaf tissues and gene-silencing experiments of both classes of CPR all point to the strict requirement of class II CPRs for monoterpene indole alkaloid biosynthesis with a minimal or null role of class I. Direct assays of interaction and reduction of P450s in vitro, however, showed that both classes of CPR performed equally well. Such high specialization of class II CPRs in planta highlights the evolutionary strategy that ensures an efficient reduction of P450s in specialized metabolism.
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Affiliation(s)
- Claire Parage
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Emilien Foureau
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Franziska Kellner
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Vincent Burlat
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Samira Mahroug
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Arnaud Lanoue
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Thomas Dugé de Bernonville
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Monica Arias Londono
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Inês Carqueijeiro
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Audrey Oudin
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Sébastien Besseau
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Nicolas Papon
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Gaëlle Glévarec
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Lucia Atehortùa
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Nathalie Giglioli-Guivarc'h
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Benoit St-Pierre
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Marc Clastre
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.)
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.)
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.)
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.)
| | - Sarah E O'Connor
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.); sarah.o'
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.); sarah.o'
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.); sarah.o'
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and sarah.o'
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.) sarah.o'
| | - Vincent Courdavault
- Université François-Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France (C.P., E.F., S.M., A.L., T.D.d.B., M.A.L., I.C., A.O., S.B., G.G., N.G.-G., B.S.-P., M.C., V.C.); sarah.o'
- Department of Biological Chemistry, John Innes Centre, Colney, Norwich NR4 7UH, United Kingdom (F.K., S.E.O.); sarah.o'
- Université de Toulouse, Université de Paris-Sud, Unité Mixte de Recherche 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France (V.B.); sarah.o'
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellin, Colombia (M.A.L., L.A.); and sarah.o'
- Université d'Angers, EA3142 Groupe d'Etude des Interactions Hôte-Pathogène, F-49933 Angers, France (N.P.) sarah.o'
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22
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Perello C, Llamas E, Burlat V, Ortiz-Alcaide M, Phillips MA, Pulido P, Rodriguez-Concepcion M. Differential Subplastidial Localization and Turnover of Enzymes Involved in Isoprenoid Biosynthesis in Chloroplasts. PLoS One 2016; 11:e0150539. [PMID: 26919668 PMCID: PMC4769067 DOI: 10.1371/journal.pone.0150539] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 02/15/2016] [Indexed: 11/23/2022] Open
Abstract
Plastidial isoprenoids are a diverse group of metabolites with roles in photosynthesis, growth regulation, and interaction with the environment. The methylerythritol 4-phosphate (MEP) pathway produces the metabolic precursors of all types of plastidial isoprenoids. Proteomics studies in Arabidopsis thaliana have shown that all the enzymes of the MEP pathway are localized in the plastid stroma. However, immunoblot analysis of chloroplast subfractions showed that the first two enzymes of the pathway, deoxyxylulose 5-phosphate synthase (DXS) and reductoisomerase (DXR), can also be found in non-stromal fractions. Both transient and stable expression of GFP-tagged DXS and DXR proteins confirmed the presence of the fusion proteins in distinct subplastidial compartments. In particular, DXR-GFP was found to accumulate in relatively large vesicles that could eventually be released from chloroplasts, presumably to be degraded by an autophagy-independent process. Together, we propose that protein-specific mechanisms control the localization and turnover of the first two enzymes of the MEP pathway in Arabidopsis chloroplasts.
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Affiliation(s)
- Catalina Perello
- Program of Plant Metabolism and Metabolic Engineering, Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, 08193 Barcelona, Spain
| | - Ernesto Llamas
- Program of Plant Metabolism and Metabolic Engineering, Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, 08193 Barcelona, Spain
| | - Vincent Burlat
- Université de Toulouse, CNRS, UMR 5546, BP 42617 Auzeville, 31326 Castanet-Tolosan, France
| | - Miriam Ortiz-Alcaide
- Program of Plant Metabolism and Metabolic Engineering, Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, 08193 Barcelona, Spain
| | - Michael A. Phillips
- Program of Plant Metabolism and Metabolic Engineering, Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, 08193 Barcelona, Spain
| | - Pablo Pulido
- Program of Plant Metabolism and Metabolic Engineering, Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, 08193 Barcelona, Spain
| | - Manuel Rodriguez-Concepcion
- Program of Plant Metabolism and Metabolic Engineering, Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, 08193 Barcelona, Spain
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23
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Francoz E, Ranocha P, Burlat V, Dunand C. Arabidopsis seed mucilage secretory cells: regulation and dynamics. Trends Plant Sci 2015; 20:515-24. [PMID: 25998090 DOI: 10.1016/j.tplants.2015.04.008] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 03/02/2015] [Accepted: 04/15/2015] [Indexed: 05/21/2023]
Abstract
Seeds from various angiosperm species produce polysaccharide mucilage facilitating germination and, therefore, conferring major evolutionary advantages. The seed epidermal mucilage secretory cells (MSCs) undergo numerous tightly controlled changes of their extracellular matrixes (ECMs) throughout seed development. Recently, major progress based on the model species Arabidopsis thaliana was published, including the identification of 54 genes necessary for mucilage synthesis and release. Here, we review these genes that constitute the so-called 'MSC toolbox', within which transcription factors and proteins related to polysaccharide production, secretion, modification, and stabilization are the most abundant and belong to complex regulatory networks. We also discuss how seed coat 'omics data-mining, comparative genomics, and operon-like gene cluster studies will provide means to identify new members of the MSC toolbox.
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Affiliation(s)
- Edith Francoz
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Philippe Ranocha
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Vincent Burlat
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France.
| | - Christophe Dunand
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France.
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24
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Dugé de Bernonville T, Clastre M, Besseau S, Oudin A, Burlat V, Glévarec G, Lanoue A, Papon N, Giglioli-Guivarc'h N, St-Pierre B, Courdavault V. Phytochemical genomics of the Madagascar periwinkle: Unravelling the last twists of the alkaloid engine. Phytochemistry 2015; 113:9-23. [PMID: 25146650 DOI: 10.1016/j.phytochem.2014.07.023] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 07/11/2014] [Accepted: 07/15/2014] [Indexed: 05/12/2023]
Abstract
The Madagascar periwinkle produces a large palette of Monoterpenoid Indole Alkaloids (MIAs), a class of complex alkaloids including some of the most valuable plant natural products with precious therapeutical values. Evolutionary pressure on one of the hotspots of biodiversity has obviously turned this endemic Malagasy plant into an innovative alkaloid engine. Catharanthus is a unique taxon producing vinblastine and vincristine, heterodimeric MIAs with complex stereochemistry, and also manufactures more than 100 different MIAs, some shared with the Apocynaceae, Loganiaceae and Rubiaceae members. For over 60 years, the quest for these powerful anticancer drugs has inspired biologists, chemists, and pharmacists to unravel the chemistry, biochemistry, therapeutic activity, cell and molecular biology of Catharanthus roseus. Recently, the "omics" technologies have fuelled rapid progress in deciphering the last secret of strictosidine biosynthesis, the central precursor opening biosynthetic routes to several thousand MIA compounds. Dedicated C. roseus transcriptome, proteome and metabolome databases, comprising organ-, tissue- and cell-specific libraries, and other phytogenomic resources, were developed for instance by PhytoMetaSyn, Medicinal Plant Genomic Resources and SmartCell consortium. Tissue specific library screening, orthology comparison in species with or without MIA-biochemical engines, clustering of gene expression profiles together with various functional validation strategies, largely contributed to enrich the toolbox for plant synthetic biology and metabolic engineering of MIA biosynthesis.
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Affiliation(s)
- Thomas Dugé de Bernonville
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Marc Clastre
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Sébastien Besseau
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Audrey Oudin
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Vincent Burlat
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France
| | - Gaëlle Glévarec
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Arnaud Lanoue
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Nicolas Papon
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | | | - Benoit St-Pierre
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Vincent Courdavault
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France.
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25
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Francoz E, Ranocha P, Nguyen-Kim H, Jamet E, Burlat V, Dunand C. Roles of cell wall peroxidases in plant development. Phytochemistry 2015; 112:15-21. [PMID: 25109234 DOI: 10.1016/j.phytochem.2014.07.020] [Citation(s) in RCA: 151] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 07/15/2014] [Accepted: 07/17/2014] [Indexed: 05/18/2023]
Abstract
Class III peroxidases (CIII Prxs) are plant specific proteins. Based on in silico prediction and experimental evidence, they are mainly considered as cell wall localized proteins. Thanks to their dual hydroxylic and peroxidative cycles, they can produce ROS as well as oxidize cell wall aromatic compounds within proteins and phenolics that are either free or linked to polysaccharides. Thus, they are tightly associated to cell wall loosening and stiffening. They are members of large multigenic families, mostly due to an elevated rate of gene duplication in higher plants, resulting in a high risk of functional redundancy between them. However, proteomic and (micro)transcriptomic analyses have shown that CIII Prx expression profiles are highly specific. Based on these omic analyses, several reverse genetic studies have demonstrated the importance of the spatio-temporal regulation of their expression and ability to interact with cell wall microdomains in order to achieve specific activity in vivo. Each CIII Prx isoform could have specific functions in muro and this could explain the conservation of a high number of genes in plant genomes.
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Affiliation(s)
- Edith Francoz
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Philippe Ranocha
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Huan Nguyen-Kim
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Elisabeth Jamet
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France.
| | - Vincent Burlat
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Christophe Dunand
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France.
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26
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Munkert J, Pollier J, Miettinen K, Van Moerkercke A, Payne R, Müller-Uri F, Burlat V, O'Connor SE, Memelink J, Kreis W, Goossens A. Iridoid synthase activity is common among the plant progesterone 5β-reductase family. Mol Plant 2015; 8:136-52. [PMID: 25578278 DOI: 10.1016/j.molp.2014.11.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [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: 06/12/2014] [Accepted: 09/15/2014] [Indexed: 05/21/2023]
Abstract
Catharanthus roseus, the Madagascar periwinkle, synthesizes bioactive monoterpenoid indole alkaloids, including the anti-cancer drugs vinblastine and vincristine. The monoterpenoid branch of the alkaloid pathway leads to the secoiridoid secologanin and involves the enzyme iridoid synthase (IS), a member of the progesterone 5β-reductase (P5βR) family. IS reduces 8-oxogeranial to iridodial. Through transcriptome mining, we show that IS belongs to a family of six C. roseus P5βR genes. Characterization of recombinant CrP5βR proteins demonstrates that all but CrP5βR3 can reduce progesterone and thus can be classified as P5βRs. Three of them, namely CrP5βR1, CrP5βR2, and CrP5βR4, can also reduce 8-oxogeranial, pointing to a possible redundancy with IS (corresponding to CrP5βR5) in secoiridoid synthesis. In-depth functional analysis by subcellular protein localization, gene expression analysis, in situ hybridization, and virus-induced gene silencing indicate that besides IS, CrP5βR4 may also participate in secoiridoid biosynthesis. We cloned a set of P5βR genes from angiosperm plant species not known to produce iridoids and demonstrate that the corresponding recombinant proteins are also capable of using 8-oxogeranial as a substrate. This suggests that IS activity is intrinsic to angiosperm P5βR proteins and has evolved early during evolution.
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Affiliation(s)
- Jennifer Munkert
- Department of Biology, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Jacob Pollier
- Department of Plant Systems Biology, VIB, 9052 Gent, Belgium; Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Gent, Belgium
| | - Karel Miettinen
- Sylvius Laboratory, Institute of Biology Leiden, Leiden University, Leiden 2333 BE, The Netherlands
| | - Alex Van Moerkercke
- Department of Plant Systems Biology, VIB, 9052 Gent, Belgium; Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Gent, Belgium
| | - Richard Payne
- Department of Biological Chemistry, John Innes Centre, Norwich NR4 7UH, UK
| | - Frieder Müller-Uri
- Department of Biology, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Vincent Burlat
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Sarah E O'Connor
- Department of Biological Chemistry, John Innes Centre, Norwich NR4 7UH, UK
| | - Johan Memelink
- Sylvius Laboratory, Institute of Biology Leiden, Leiden University, Leiden 2333 BE, The Netherlands
| | - Wolfgang Kreis
- Department of Biology, University of Erlangen-Nuremberg, 91058 Erlangen, Germany.
| | - Alain Goossens
- Department of Plant Systems Biology, VIB, 9052 Gent, Belgium; Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Gent, Belgium.
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27
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Munkert J, Pollier J, Miettinen K, Van Moerkercke A, Payne R, Müller-Uri F, Burlat V, O'Connor SE, Memelink J, Kreis W, Goossens A. Iridoid Synthase Activity Is Common among the Plant Progesterone 5β-Reductase Family. Mol Plant 2014:ssu100. [PMID: 25239067 DOI: 10.1093/mp/ssu100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Catharanthus roseus, the Madagascar periwinkle, synthesizes bioactive monoterpenoid indole alkaloids, among which the anti-cancer drugs vinblastine and vincristine. The monoterpenoid branch of the alkaloid pathway leads to the secoiridoid secologanin and involves the enzyme iridoid synthase (IS), a member of the progesterone 5β-reductase (P5βR) family. IS reduces 8-oxogeranial to iridodial. Through transcriptome mining, we show that IS belongs to a family of six C. roseus P5βR genes. Characterisation of recombinant CrP5βR proteins demonstrates that all but CrP5βR3 can reduce progesterone, and thus can be classified as P5βRs. Three of them, namely CrP5βR1, CrP5βR2 and CrP5βR4, could also reduce 8-oxogeranial, pointing to a possible redundancy with IS (corresponding to CrP5βR5) in secoiridoid synthesis. In depth functional analysis by subcellular protein localisation, gene expression analysis, in situ hybridisation and virus-induced gene silencing, indicates that besides IS, CrP5βR4 may also participate in secoiridoid biosynthesis. Finally, we cloned a set of P5βR genes from angiosperm plant species not known to produce iridoids and demonstrate that the corresponding recombinant proteins are also capable of using 8-oxogeranial as a substrate. This suggests that 'IS activity' is intrinsic to angiosperm P5βR proteins and has evolved early during evolution.
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Affiliation(s)
- Jennifer Munkert
- Department of Biology, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Jacob Pollier
- Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Gent, Belgium
| | - Karel Miettinen
- Sylvius Laboratory, Institute of Biology Leiden, Leiden University, Leiden 2333 BE, The Netherlands
| | - Alex Van Moerkercke
- Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Gent, Belgium
| | - Richard Payne
- Department of Biological Chemistry, John Innes Centre, Norwich NR4 7UH, UK
| | - Frieder Müller-Uri
- Department of Biology, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Vincent Burlat
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France CNRS, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Sarah E O'Connor
- Department of Biological Chemistry, John Innes Centre, Norwich NR4 7UH, UK
| | - Johan Memelink
- Sylvius Laboratory, Institute of Biology Leiden, Leiden University, Leiden 2333 BE, The Netherlands
| | - Wolfgang Kreis
- Department of Biology, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Alain Goossens
- Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Gent, Belgium
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28
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Miettinen K, Dong L, Navrot N, Schneider T, Burlat V, Pollier J, Woittiez L, van der Krol S, Lugan R, Ilc T, Verpoorte R, Oksman-Caldentey KM, Martinoia E, Bouwmeester H, Goossens A, Memelink J, Werck-Reichhart D. Erratum: Corrigendum: The seco-iridoid pathway from Catharanthus roseus. Nat Commun 2014. [PMCID: PMC5784274 DOI: 10.1038/ncomms5175] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
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29
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Courdavault V, Papon N, Clastre M, Giglioli-Guivarc'h N, St-Pierre B, Burlat V. A look inside an alkaloid multisite plant: the Catharanthus logistics. Curr Opin Plant Biol 2014; 19:43-50. [PMID: 24727073 DOI: 10.1016/j.pbi.2014.03.010] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 03/14/2014] [Accepted: 03/15/2014] [Indexed: 05/12/2023]
Abstract
Environmental pressures forced plants to diversify specialized metabolisms to accumulate noxious molecules such as alkaloids constituting one of the largest classes of defense metabolites. Catharanthus roseus produces monoterpene indole alkaloids via a highly elaborated biosynthetic pathway whose characterization greatly progressed with the recent expansion of transcriptomic resources. The complex architecture of this pathway, sequentially distributed in at least four cell types and further compartmentalized into several organelles, involves partially identified inter-cellular and intra-cellular translocation events acting as potential key-regulators of metabolic fluxes. The description of this spatial organization and the inherent secretion and sequestration of metabolites not only provide new insight into alkaloid cell biology and its involvement in plant defense processes but also present new biotechnological challenges for synthetic biology.
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Affiliation(s)
- Vincent Courdavault
- Université François-Rabelais de Tours, EA2106 'Biomolécules et Biotechnologies Végétales', Tours, France.
| | - Nicolas Papon
- Université François-Rabelais de Tours, EA2106 'Biomolécules et Biotechnologies Végétales', Tours, France
| | - Marc Clastre
- Université François-Rabelais de Tours, EA2106 'Biomolécules et Biotechnologies Végétales', Tours, France
| | | | - Benoit St-Pierre
- Université François-Rabelais de Tours, EA2106 'Biomolécules et Biotechnologies Végétales', Tours, France
| | - Vincent Burlat
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617, Auzeville, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617, Auzeville, F-31326 Castanet-Tolosan, France
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30
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Miettinen K, Dong L, Navrot N, Schneider T, Burlat V, Pollier J, Woittiez L, van der Krol S, Lugan R, Ilc T, Verpoorte R, Oksman-Caldentey KM, Martinoia E, Bouwmeester H, Goossens A, Memelink J, Werck-Reichhart D. The seco-iridoid pathway from Catharanthus roseus. Nat Commun 2014; 5:3606. [PMID: 24710322 PMCID: PMC3992524 DOI: 10.1038/ncomms4606] [Citation(s) in RCA: 263] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Accepted: 03/10/2014] [Indexed: 12/18/2022] Open
Abstract
The (seco)iridoids and their derivatives, the monoterpenoid indole alkaloids (MIAs), form two large families of plant-derived bioactive compounds with a wide spectrum of high-value pharmacological and insect-repellent activities. Vinblastine and vincristine, MIAs used as anticancer drugs, are produced by Catharanthus roseus in extremely low levels, leading to high market prices and poor availability. Their biotechnological production is hampered by the fragmentary knowledge of their biosynthesis. Here we report the discovery of the last four missing steps of the (seco)iridoid biosynthesis pathway. Expression of the eight genes encoding this pathway, together with two genes boosting precursor formation and two downstream alkaloid biosynthesis genes, in an alternative plant host, allows the heterologous production of the complex MIA strictosidine. This confirms the functionality of all enzymes of the pathway and highlights their utility for synthetic biology programmes towards a sustainable biotechnological production of valuable (seco)iridoids and alkaloids with pharmaceutical and agricultural applications.
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Affiliation(s)
- Karel Miettinen
- Sylvius Laboratory, Institute of Biology Leiden, Leiden University, Sylviusweg 72, PO Box 9505, Leiden 2300 RA, The Netherlands
- These authors contributed equally to this work
| | - Lemeng Dong
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, Wageningen 6708 PB, The Netherlands
- These authors contributed equally to this work
| | - Nicolas Navrot
- Institut de Biologie Moléculaire des Plantes, Unité Propre de Recherche 2357 du Centre National de la Recherche Scientifique, Université de Strasbourg, 28 rue Goethe, Strasbourg 67000, France
- These authors contributed equally to this work
| | - Thomas Schneider
- Institute of Plant Biology, University Zurich, Zollikerstrasse 107, Zurich CH-8008, Switzerland
- Present address: Philip Morris International R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, Neuchatel 2000, Switzerland
| | - Vincent Burlat
- CNRS; UMR 5546, Université de Toulouse; UPS; UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, Castanet-Tolosan F-31326, France
| | - Jacob Pollier
- Department of Plant Systems Biology, VIB and Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, Gent B-9052, Belgium
| | - Lotte Woittiez
- Institute of Plant Biology, University Zurich, Zollikerstrasse 107, Zurich CH-8008, Switzerland
- Present address: Plant Production Systems Group, Wageningen University, P.O. Box 430, Wageningen 6700 AK, The Netherlands
| | - Sander van der Krol
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, Wageningen 6708 PB, The Netherlands
| | - Raphaël Lugan
- Institut de Biologie Moléculaire des Plantes, Unité Propre de Recherche 2357 du Centre National de la Recherche Scientifique, Université de Strasbourg, 28 rue Goethe, Strasbourg 67000, France
| | - Tina Ilc
- Institut de Biologie Moléculaire des Plantes, Unité Propre de Recherche 2357 du Centre National de la Recherche Scientifique, Université de Strasbourg, 28 rue Goethe, Strasbourg 67000, France
| | - Robert Verpoorte
- Sylvius Laboratory, Institute of Biology Leiden, Leiden University, Sylviusweg 72, PO Box 9505, Leiden 2300 RA, The Netherlands
| | - Kirsi-Marja Oksman-Caldentey
- Industrial Biotechnology, VTT Technical Research Centre of Finland, P.O. Box 1000, FI-02044 VTT (Espoo), Finland
| | - Enrico Martinoia
- Institute of Plant Biology, University Zurich, Zollikerstrasse 107, Zurich CH-8008, Switzerland
| | - Harro Bouwmeester
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, Wageningen 6708 PB, The Netherlands
| | - Alain Goossens
- Department of Plant Systems Biology, VIB and Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, Gent B-9052, Belgium
| | - Johan Memelink
- Sylvius Laboratory, Institute of Biology Leiden, Leiden University, Sylviusweg 72, PO Box 9505, Leiden 2300 RA, The Netherlands
| | - Danièle Werck-Reichhart
- Institut de Biologie Moléculaire des Plantes, Unité Propre de Recherche 2357 du Centre National de la Recherche Scientifique, Université de Strasbourg, 28 rue Goethe, Strasbourg 67000, France
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Ranocha P, Francoz E, Burlat V, Dunand C. Expression of PRX36, PMEI6 and SBT1.7 is controlled by complex transcription factor regulatory networks for proper seed coat mucilage extrusion. Plant Signal Behav 2014; 9:e977734. [PMID: 25531128 PMCID: PMC4622701 DOI: 10.4161/15592324.2014.977734] [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: 05/10/2023]
Abstract
Mucilage secretory cells (MSC) form an intriguing cell layer important for seed germination. In Arabidopsis thaliana, several master transcription factors (TFs) and "actor" proteins have already been identified as key players for seed coat differentiation including epidermal cell formation, mucilage production and extrusion. The regulation of the genes coding for MSC cell wall "actor" proteins by TFs needs to be better established. Here, the expression and the regulation of 3 known actors (PRX36, PMEI6, SBT1.7) and 2 additional putative actors (PRX56, DIR12) have been analyzed in T-DNA mutants affected in master TFs (ap2, egl3/gl3, gl2, myb5, tt8, ttg1, ttg2 and luh1/mum1). Genes with somehow similar function are differentially regulated and conversely, genes with different functions are regulated in similar manner.
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Affiliation(s)
- Philippe Ranocha
- Université de Toulouse; UPS; UMR 5546; Laboratoire de Recherche en Sciences Végétales; Castanet-Tolosan, France
- CNRS; UMR 5546; Castanet-Tolosan, France
| | - Edith Francoz
- Université de Toulouse; UPS; UMR 5546; Laboratoire de Recherche en Sciences Végétales; Castanet-Tolosan, France
- CNRS; UMR 5546; Castanet-Tolosan, France
| | - Vincent Burlat
- Université de Toulouse; UPS; UMR 5546; Laboratoire de Recherche en Sciences Végétales; Castanet-Tolosan, France
- CNRS; UMR 5546; Castanet-Tolosan, France
| | - Christophe Dunand
- Université de Toulouse; UPS; UMR 5546; Laboratoire de Recherche en Sciences Végétales; Castanet-Tolosan, France
- CNRS; UMR 5546; Castanet-Tolosan, France
- Correspondence to: Christophe Dunand;
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32
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Besseau S, Kellner F, Lanoue A, Thamm AM, Salim V, Schneider B, Geu-Flores F, Höfer R, Guirimand G, Guihur A, Oudin A, Glevarec G, Foureau E, Papon N, Clastre M, Giglioli-Guivarc’h N, St-Pierre B, Werck-Reichhart D, Burlat V, De Luca V, O’Connor SE, Courdavault V. A pair of tabersonine 16-hydroxylases initiates the synthesis of vindoline in an organ-dependent manner in Catharanthus roseus. Plant Physiol 2013; 163:1792-803. [PMID: 24108213 PMCID: PMC3850188 DOI: 10.1104/pp.113.222828] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 10/07/2013] [Indexed: 05/18/2023]
Abstract
Hydroxylation of tabersonine at the C-16 position, catalyzed by tabersonine 16-hydroxylase (T16H), initiates the synthesis of vindoline that constitutes the main alkaloid accumulated in leaves of Catharanthus roseus. Over the last decade, this reaction has been associated with CYP71D12 cloned from undifferentiated C. roseus cells. In this study, we isolated a second cytochrome P450 (CYP71D351) displaying T16H activity. Biochemical characterization demonstrated that CYP71D12 and CYP71D351 both exhibit high affinity for tabersonine and narrow substrate specificity, making of T16H, to our knowledge, the first alkaloid biosynthetic enzyme displaying two isoforms encoded by distinct genes characterized to date in C. roseus. However, both genes dramatically diverge in transcript distribution in planta. While CYP71D12 (T16H1) expression is restricted to flowers and undifferentiated cells, the CYP71D351 (T16H2) expression profile is similar to the other vindoline biosynthetic genes reaching a maximum in young leaves. Moreover, transcript localization by carborundum abrasion and RNA in situ hybridization demonstrated that CYP71D351 messenger RNAs are specifically located to leaf epidermis, which also hosts the next step of vindoline biosynthesis. Comparison of high- and low-vindoline-accumulating C. roseus cultivars also highlights the direct correlation between CYP71D351 transcript and vindoline levels. In addition, CYP71D351 down-regulation mediated by virus-induced gene silencing reduces vindoline accumulation in leaves and redirects the biosynthetic flux toward the production of unmodified alkaloids at the C-16 position. All these data demonstrate that tabersonine 16-hydroxylation is orchestrated in an organ-dependent manner by two genes including CYP71D351, which encodes the specific T16H isoform acting in the foliar vindoline biosynthesis.
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33
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Douché T, Clemente HS, Burlat V, Roujol D, Valot B, Zivy M, Pont-Lezica R, Jamet E. Brachypodium distachyon
as a model plant toward improved biofuel crops: Search for secreted proteins involved in biogenesis and disassembly of cell wall polymers. Proteomics 2013; 13:2438-54. [DOI: 10.1002/pmic.201200507] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 04/19/2013] [Accepted: 05/27/2013] [Indexed: 01/06/2023]
Affiliation(s)
- Thibaut Douché
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse; UPS, UMR 5546; Castanet-Tolosan France
- CNRS, UMR 5546; Castanet-Tolosan France
| | - Hélène San Clemente
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse; UPS, UMR 5546; Castanet-Tolosan France
- CNRS, UMR 5546; Castanet-Tolosan France
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse; UPS, UMR 5546; Castanet-Tolosan France
- CNRS, UMR 5546; Castanet-Tolosan France
| | - David Roujol
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse; UPS, UMR 5546; Castanet-Tolosan France
- CNRS, UMR 5546; Castanet-Tolosan France
| | - Benoît Valot
- CNRS, PAPPSO, UMR 0320/UMR 8120 Génétique Végétale; Gif sur Yvette France
- INRA, PAPPSO, UMR 0320/UMR 8120 Génétique Végétale; Gif sur Yvette France
| | - Michel Zivy
- CNRS, PAPPSO, UMR 0320/UMR 8120 Génétique Végétale; Gif sur Yvette France
- INRA, PAPPSO, UMR 0320/UMR 8120 Génétique Végétale; Gif sur Yvette France
| | - Rafael Pont-Lezica
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse; UPS, UMR 5546; Castanet-Tolosan France
- CNRS, UMR 5546; Castanet-Tolosan France
| | - Elisabeth Jamet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse; UPS, UMR 5546; Castanet-Tolosan France
- CNRS, UMR 5546; Castanet-Tolosan France
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34
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Simkin AJ, Miettinen K, Claudel P, Burlat V, Guirimand G, Courdavault V, Papon N, Meyer S, Godet S, St-Pierre B, Giglioli-Guivarc'h N, Fischer MJC, Memelink J, Clastre M. Characterization of the plastidial geraniol synthase from Madagascar periwinkle which initiates the monoterpenoid branch of the alkaloid pathway in internal phloem associated parenchyma. Phytochemistry 2013; 85:36-43. [PMID: 23102596 DOI: 10.1016/j.phytochem.2012.09.014] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 09/21/2012] [Accepted: 09/26/2012] [Indexed: 05/21/2023]
Abstract
Madagascar periwinkle (Catharanthus roseus [L.] G. Don, Apocynaceae) produces monoterpene indole alkaloids (MIAs), secondary metabolites of high interest due to their therapeutic value. A key step in the biosynthesis is the generation of geraniol from geranyl diphosphate (GPP) in the monoterpenoid branch of the MIA pathway. Here we report on the cloning and functional characterization of C. roseus geraniol synthase (CrGES). The full-length CrGES was over-expressed in Escherichia coli and the purified recombinant protein catalyzed the conversion of GPP into geraniol with a K(m) value of 58.5 μM for GPP. In vivo CrGES activity was evaluated by heterologous expression in a Saccharomyces cerevisiae strain mutated in the farnesyl diphosphate synthase gene. Analysis of culture extracts by gas chromatography-mass spectrometry confirmed the excretion of geraniol into the growth medium. Transient transformation of C. roseus cells with a Yellow Fluorescent Protein-fusion construct revealed that CrGES is localized in plastid stroma and stromules. In aerial plant organs, RNA in situ hybridization showed specific labeling of CrGES transcripts in the internal phloem associated parenchyma as observed for other characterized genes involved in the early steps of MIA biosynthesis. Finally, when cultures of Catharanthus cells were treated with the alkaloid-inducing hormone methyl jasmonate, an increase in CrGES transcript levels was observed. This observation coupled with the tissue-specific expression and the subcellular compartmentalization support the idea that CrGES initiates the monoterpenoid branch of the MIA biosynthetic pathway.
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Affiliation(s)
- Andrew J Simkin
- Université François-Rabelais, EA2106, Biomolécules et Biotechnologies Végétales, 31 Avenue Monge, 37200 Tours, France
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35
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Guirimand G, Guihur A, Phillips MA, Oudin A, Glévarec G, Mahroug S, Melin C, Papon N, Clastre M, Giglioli-Guivarc'h N, St-Pierre B, Rodríguez-Concepción M, Burlat V, Courdavault V. Triple subcellular targeting of isopentenyl diphosphate isomerases encoded by a single gene. Plant Signal Behav 2012; 7:1495-7. [PMID: 22951398 PMCID: PMC3548878 DOI: 10.4161/psb.21892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 05/08/2023]
Abstract
Isopentenyl diphosphate isomerase (IDI) is a key enzyme of the isoprenoid pathway, catalyzing the interconversion of isopentenyl diphosphate and dimethylallyl diphosphate, the universal precursors of all isoprenoids. In plants, several subcellular compartments, including cytosol/ER, peroxisomes, mitochondria and plastids, are involved in isoprenoid biosynthesis. Here, we report on the unique triple targeting of two Catharanthus roseus IDI isoforms encoded by a single gene (CrIDI1). The triple localization of CrIDI1 in mitochondria, plastids and peroxisomes is explained by alternative transcription initiation of CrIDI1, by the specificity of a bifunctional N-terminal mitochondria/plastid transit peptide and by the presence of a C-terminal peroxisomal targeting signal. Moreover, bimolecular fluorescence complementation assays revealed self-interactions suggesting that the IDI likely acts as a multimer in vivo.
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Affiliation(s)
- Grégory Guirimand
- EA2106 Biomolécules et Biotechnologies Végétales; Université François Rabelais de Tours; Tours, France
| | - Anthony Guihur
- EA2106 Biomolécules et Biotechnologies Végétales; Université François Rabelais de Tours; Tours, France
| | - Michael A. Phillips
- Department of Molecular Genetics; Centre for Research in Agricultural Genomics (CRAG); CSIC-IRTA-UAB-UB; Barcelona, Spain
| | - Audrey Oudin
- EA2106 Biomolécules et Biotechnologies Végétales; Université François Rabelais de Tours; Tours, France
| | - Gaëlle Glévarec
- EA2106 Biomolécules et Biotechnologies Végétales; Université François Rabelais de Tours; Tours, France
| | - Samira Mahroug
- EA2106 Biomolécules et Biotechnologies Végétales; Université François Rabelais de Tours; Tours, France
| | - Céline Melin
- EA2106 Biomolécules et Biotechnologies Végétales; Université François Rabelais de Tours; Tours, France
| | - Nicolas Papon
- EA2106 Biomolécules et Biotechnologies Végétales; Université François Rabelais de Tours; Tours, France
| | - Marc Clastre
- EA2106 Biomolécules et Biotechnologies Végétales; Université François Rabelais de Tours; Tours, France
| | | | - Benoit St-Pierre
- EA2106 Biomolécules et Biotechnologies Végétales; Université François Rabelais de Tours; Tours, France
| | - Manuel Rodríguez-Concepción
- Department of Molecular Genetics; Centre for Research in Agricultural Genomics (CRAG); CSIC-IRTA-UAB-UB; Barcelona, Spain
| | - Vincent Burlat
- Laboratoire de Recherche en Sciences Végétales; Université de Toulouse; UPS; UMR 5546; BP 42617; 31326 Castanet-Tolosan, France
- CNRS; UMR 5546; BP 42617; Castanet-Tolosan, France
| | - Vincent Courdavault
- EA2106 Biomolécules et Biotechnologies Végétales; Université François Rabelais de Tours; Tours, France
- Correspondence to: Vincent Courdavault,
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36
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Guirimand G, Guihur A, Phillips MA, Oudin A, Glévarec G, Melin C, Papon N, Clastre M, St-Pierre B, Rodríguez-Concepción M, Burlat V, Courdavault V. A single gene encodes isopentenyl diphosphate isomerase isoforms targeted to plastids, mitochondria and peroxisomes in Catharanthus roseus. Plant Mol Biol 2012; 79:443-59. [PMID: 22638903 DOI: 10.1007/s11103-012-9923-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Accepted: 05/05/2012] [Indexed: 05/23/2023]
Abstract
Isopentenyl diphosphate isomerases (IDI) catalyze the interconversion of the two isoprenoid universal C5 units, isopentenyl diphosphate and dimethylally diphosphate, to allow the biosynthesis of the large variety of isoprenoids including both primary and specialized metabolites. This isomerisation is usually performed by two distinct IDI isoforms located either in plastids/peroxisomes or mitochondria/peroxisomes as recently established in Arabidopsis thaliana mainly accumulating primary isoprenoids. By contrast, almost nothing is known in plants accumulating specialized isoprenoids. Here we report the cloning and functional validation of an IDI encoding cDNA (CrIDI1) from Catharanthus roseus that produces high amount of monoterpenoid indole alkaloids. The corresponding gene is expressed in all organs including roots, flowers and young leaves where transcripts have been detected in internal phloem parenchyma and epidermis. The CrIDI1 gene also produces long and short transcripts giving rise to corresponding proteins with and without a N-terminal transit peptide (TP), respectively. Expression of green fluorescent protein fusions revealed that the long isoform is targeted to both plastids and mitochondria with an apparent similar efficiency. Deletion/fusion experiments established that the first 18-residues of the N-terminal TP are solely responsible of the mitochondria targeting while the entire 77-residue long TP is needed for an additional plastid localization. The short isoform is targeted to peroxisomes in agreement with the presence of peroxisome targeting sequence at its C-terminal end. This complex plastid/mitochondria/peroxisomes triple targeting occurring in C. roseus producing specialized isoprenoid secondary metabolites is somehow different from the situation observed in A. thaliana mainly producing housekeeping isoprenoid metabolites.
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Affiliation(s)
- Grégory Guirimand
- EA2106 "Biomolécules et Biotechnologies Végétales", Université François Rabelais de Tours, 37200, Tours, France
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Guirimand G, Simkin AJ, Papon N, Besseau S, Burlat V, St-Pierre B, Giglioli-Guivarc'h N, Clastre M, Courdavault V. Cycloheximide as a tool to investigate protein import in peroxisomes: a case study of the subcellular localization of isoprenoid biosynthetic enzymes. J Plant Physiol 2012; 169:825-829. [PMID: 22459325 DOI: 10.1016/j.jplph.2012.01.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 01/09/2012] [Accepted: 01/09/2012] [Indexed: 05/31/2023]
Abstract
Cytosolic background fluorescence is often observed when native low-abundance peroxisomal proteins carrying a weak peroxisomal targeting sequence are expressed as fluorescent fusion protein using a strong constitutive promoter in transiently transformed plant cells. This cytosolic fluorescence usually comes from the strong expression of the low-abundance proteins exceeding the peroxisome import efficiency. This often results in a misinterpretation of the protein subcellular localization, as there is doubt as to whether proteins are dually targeted to the cytosol and peroxisome or are exclusively localized to peroxisomes. To circumvent this experimental difficulty, the protein peroxisome import study can be optimized by de novo protein synthesis inhibition in transiently transformed cells using the translation inhibitor cycloheximide. This approach was used here successfully for the study of the subcellular localization of distinct plant isoprenoid biosynthetic enzymes, allowing us to clearly demonstrate that 5-phosphomevalonate kinase, mevalonate 5-diphosphate decarboxylase and a short isoform of farnesyl diphosphate synthase from Catharanthus roseus are exclusively localized to peroxisomes.
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Affiliation(s)
- Grégory Guirimand
- Université François-Rabelais de Tours, EA 2106 Biomolécules et Biotechnologies Végétales, 37200 Tours, France
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38
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Guirimand G, Guihur A, Poutrain P, Héricourt F, Mahroug S, St-Pierre B, Burlat V, Courdavault V. Spatial organization of the vindoline biosynthetic pathway in Catharanthus roseus. J Plant Physiol 2011; 168:549-57. [PMID: 21047699 DOI: 10.1016/j.jplph.2010.08.018] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2010] [Revised: 08/25/2010] [Accepted: 08/25/2010] [Indexed: 05/24/2023]
Abstract
Vindoline constitutes the main terpenoid indole alkaloid accumulated in leaves of Catharanthus roseus, and four genes involved in its biosynthesis have been identified. However, the spatial organization of the tabersonine-to-vindoline biosynthetic pathway is still incomplete. To pursue the characterization of this six-step conversion, we illustrated, with in situ hybridization, that the transcripts of the second biosynthetic enzyme, 16-hydroxytabersonine 16-O-methyltransferase (16OMT), are specifically localized to the aerial organ epidermis. At the subcellular level, by combining GFP imaging, bimolecular fluorescence complementation assays and yeast two-hybrid analysis, we established that the first biosynthetic enzyme, tabersonine 16-hydroxylase (T16H), is anchored to the ER as a monomer via a putative N-terminal helix that we cloned using a PCR approach. We also showed that 16OMT homodimerizes in the cytoplasm, allowing its exclusion from the nucleus and thus facilitating the uptake of T16H conversion product, although no T16H/16OMT interactions occur. Moreover, the two last biosynthetic enzymes, desacetoxyvindoline-4-hydroxylase (D4H) and deacetylvindoline-4-O-acetyltransferase (DAT), were shown to operate as monomers that reside in the nucleocytoplasmic compartment following passive diffusion to the nucleus allowed by the protein size. No D4H/DAT interactions were detected, suggesting the absence of metabolic channeling in the vindoline biosynthetic pathway. Finally, these results highlight the importance of the inter- and intracellular translocations of intermediates during the vindoline biosynthesis and their potential regulatory role.
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Affiliation(s)
- Grégory Guirimand
- Université François Rabelais de Tours, EA 2106 Biomolécules et Biotechnologies Végétales, IFR 135 Imagerie fonctionnelle 37200 Tours, France
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Guirimand G, Guihur A, Ginis O, Poutrain P, Héricourt F, Oudin A, Lanoue A, St-Pierre B, Burlat V, Courdavault V. The subcellular organization of strictosidine biosynthesis in Catharanthus roseus epidermis highlights several trans-tonoplast translocations of intermediate metabolites. FEBS J 2011; 278:749-63. [PMID: 21205206 DOI: 10.1111/j.1742-4658.2010.07994.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Catharanthus roseus synthesizes a wide range of valuable monoterpene indole alkaloids, some of which have recently been recognized as functioning in plant defence mechanisms. More specifically, in aerial organ epidermal cells, vacuole-accumulated strictosidine displays a dual fate, being either the precursor of all monoterpene indole alkaloids after export from the vacuole, or the substrate for a defence mechanism based on the massive protein cross-linking, which occurs subsequent to organelle membrane disruption during biotic attacks. Such a mechanism relies on a physical separation between the vacuolar strictosidine-synthesizing enzyme and the nucleus-targeted enzyme catalyzing its activation through deglucosylation. In the present study, we carried out the spatial characterization of this mechanism by a cellular and subcellular study of three enzymes catalyzing the synthesis of the two strictosidine precursors (i.e. tryptamine and secologanin). Using RNA in situ hybridization, we demonstrated that loganic acid O-methyltransferase transcript, catalysing the penultimate step of secologanin synthesis, is specifically localized in the epidermis. A combination of green fluorescent protein imaging, bimolecular fluorescence complementation assays and yeast two-hybrid analysis enabled us to establish that both loganic acid O-methyltransferase and the tryptamine-producing enzyme, tryptophan decarboxylase, form homodimers in the cytosol, thereby preventing their passive diffusion to the nucleus. We also showed that the cytochrome P450 secologanin synthase is anchored to the endoplasmic reticulum via a N-terminal helix, thus allowing the production of secologanin on the cytosolic side of the endoplasmic reticulum membrane. Consequently, secologanin and tryptamine must be transported to the vacuole to achieve strictosidine biosynthesis, demonstrating the importance of trans-tonoplast translocation events during these metabolic processes.
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Affiliation(s)
- Grégory Guirimand
- Université François Rabelais de Tours, EA2106 Biomolécules et Biotechnologies Végétales, IFR 135 Imagerie fonctionnelle, Tours, France
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Poutrain P, Guirimand G, Mahroug S, Burlat V, Melin C, Ginis O, Oudin A, Giglioli-Guivarc'h N, Pichon O, Courdavault V. Molecular cloning and characterisation of two calmodulin isoforms of the Madagascar periwinkle Catharanthus roseus. Plant Biol (Stuttg) 2011; 13:36-41. [PMID: 21143723 DOI: 10.1111/j.1438-8677.2010.00325.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Involvement of Ca(2+) signalling in regulation of the biosynthesis of monoterpene indole alkaloids (MIA) in Catharanthus roseus has been extensively studied in recent years, albeit no protein of this signalling pathway has been isolated. Using a PCR strategy, two C. roseus cDNAs encoding distinct calmodulin (CAM) isoforms were cloned and named CAM1 and CAM2. The deduced 149 amino acid sequences possess four Ca(2+) binding domains and exhibit a close identity with Arabidopsis CAM isoforms (>91%). The ability of CAM1 and CAM2 to bind Ca(2+) was demonstrated following expression of the corresponding recombinant proteins. Furthermore, transient expression of CAM1-GFP and CAM2-GFP in C. roseus cells showed a typical nucleo-cytoplasm localisation of both CAMs, in agreement with the wide distribution of CAM target proteins. Using RNA blot analysis, we showed that CAM1 and CAM2 genes had a broad pattern of expression in C. roseus organs and are constitutively expressed during a C. roseus cell culture cycle, with a slight inhibitory effect of auxin for CAM1. Using RNA in situ hybridisation, we also detected CAM1 and CAM2 mRNA in the vascular bundle region of young seedling cotyledons. Finally, using specific inhibitors, we also showed that CAMs are required for MIA biosynthesis in C. roseus cells by acting on regulation of expression of genes encoding enzymes that catalyse early steps of MIA biosynthesis, such as 1-deoxy-d-xylulose 5-phosphate reductoisomerase and geraniol 10-hydroxylase.
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Affiliation(s)
- P Poutrain
- Université François Rabelais de Tours, EA 2106 Biomolécules et Biotechnologies Végétales, IFR 135 Imagerie fonctionnelle, Tours, France
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Guirimand G, Courdavault V, Lanoue A, Mahroug S, Guihur A, Blanc N, Giglioli-Guivarc'h N, St-Pierre B, Burlat V. Strictosidine activation in Apocynaceae: towards a "nuclear time bomb"? BMC Plant Biol 2010; 10:182. [PMID: 20723215 PMCID: PMC3095312 DOI: 10.1186/1471-2229-10-182] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2010] [Accepted: 08/19/2010] [Indexed: 05/02/2023]
Abstract
BACKGROUND The first two enzymatic steps of monoterpene indole alkaloid (MIA) biosynthetic pathway are catalysed by strictosidine synthase (STR) that condensates tryptamine and secologanin to form strictosidine and by strictosidine beta-D-glucosidase (SGD) that subsequently hydrolyses the glucose moiety of strictosidine. The resulting unstable aglycon is rapidly converted into a highly reactive dialdehyde, from which more than 2,000 MIAs are derived. Many studies were conducted to elucidate the biosynthesis and regulation of pharmacologically valuable MIAs such as vinblastine and vincristine in Catharanthus roseus or ajmaline in Rauvolfia serpentina. However, very few reports focused on the MIA physiological functions. RESULTS In this study we showed that a strictosidine pool existed in planta and that the strictosidine deglucosylation product(s) was (were) specifically responsible for in vitro protein cross-linking and precipitation suggesting a potential role for strictosidine activation in plant defence. The spatial feasibility of such an activation process was evaluated in planta. On the one hand, in situ hybridisation studies showed that CrSTR and CrSGD were coexpressed in the epidermal first barrier of C. roseus aerial organs. However, a combination of GFP-imaging, bimolecular fluorescence complementation and electromobility shift-zymogram experiments revealed that STR from both C. roseus and R. serpentina were localised to the vacuole whereas SGD from both species were shown to accumulate as highly stable supramolecular aggregates within the nucleus. Deletion and fusion studies allowed us to identify and to demonstrate the functionality of CrSTR and CrSGD targeting sequences. CONCLUSIONS A spatial model was drawn to explain the role of the subcellular sequestration of STR and SGD to control the MIA metabolic flux under normal physiological conditions. The model also illustrates the possible mechanism of massive activation of the strictosidine vacuolar pool upon enzyme-substrate reunion occurring during potential herbivore feeding constituting a so-called "nuclear time bomb" in reference to the "mustard oil bomb" commonly used to describe the myrosinase-glucosinolate defence system in Brassicaceae.
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Affiliation(s)
- Grégory Guirimand
- Université François Rabelais de Tours, EA 2106 "Biomolécules et Biotechnologies Végétales"; IFR 135 "Imagerie fonctionnelle" 37200, Tours, France
| | - Vincent Courdavault
- Université François Rabelais de Tours, EA 2106 "Biomolécules et Biotechnologies Végétales"; IFR 135 "Imagerie fonctionnelle" 37200, Tours, France
| | - Arnaud Lanoue
- Université François Rabelais de Tours, EA 2106 "Biomolécules et Biotechnologies Végétales"; IFR 135 "Imagerie fonctionnelle" 37200, Tours, France
| | - Samira Mahroug
- Université François Rabelais de Tours, EA 2106 "Biomolécules et Biotechnologies Végétales"; IFR 135 "Imagerie fonctionnelle" 37200, Tours, France
- Laboratoire Biodiversité Végétale, Conservation et Valorisation, Faculté des Sciences, Université Djillali Liabés, Sidi Bel Abbes, Algérie
| | - Anthony Guihur
- Université François Rabelais de Tours, EA 2106 "Biomolécules et Biotechnologies Végétales"; IFR 135 "Imagerie fonctionnelle" 37200, Tours, France
| | - Nathalie Blanc
- Université François Rabelais de Tours, EA 2106 "Biomolécules et Biotechnologies Végétales"; IFR 135 "Imagerie fonctionnelle" 37200, Tours, France
| | - Nathalie Giglioli-Guivarc'h
- Université François Rabelais de Tours, EA 2106 "Biomolécules et Biotechnologies Végétales"; IFR 135 "Imagerie fonctionnelle" 37200, Tours, France
| | - Benoit St-Pierre
- Université François Rabelais de Tours, EA 2106 "Biomolécules et Biotechnologies Végétales"; IFR 135 "Imagerie fonctionnelle" 37200, Tours, France
| | - Vincent Burlat
- Université François Rabelais de Tours, EA 2106 "Biomolécules et Biotechnologies Végétales"; IFR 135 "Imagerie fonctionnelle" 37200, Tours, France
- Université de Toulouse; UPS; UMR 5546, Surfaces Cellulaires et Signalisation chez les Végétaux; BP 42617, F-31326, Castanet-Tolosan, France
- CNRS; UMR 5546; BP 42617, F-31326, Castanet-Tolosan, France
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Abstract
Rhizosphere is the complex place of numerous interactions between plant roots, microbes and soil fauna. Whereas plant interactions with aboveground organisms are largely described, unravelling plant belowground interactions remains challenging. Plant root chemical communication can lead to positive interactions with nodulating bacteria, mycorriza or biocontrol agents or to negative interactions with pathogens or root herbivores. A recent study suggested that root exudates contribute to plant pathogen resistance via secretion of antimicrobial compounds. These findings point to the importance of plant root exudates as belowground signalling molecules, particularly in defence responses. In our report, we showed that under Fusarium attack the barley root system launched secretion of phenolic compounds with antimicrobial activity. The secretion of de novo biosynthesized t-cinnamic acid induced within 2 days illustrates the dynamic of plant defense mechanisms at the root level. We discuss the costs and benefits of induced defense responses in the rhizosphere. We suggest that plant defence through root exudation may be cultivar dependent and higher in wild or less domesticated varieties.
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Affiliation(s)
- Arnaud Lanoue
- Université François Rabelais de Tours; EA Plant Biotechnology and Biomolecules; Avenue Monge; Tours, France
| | - Vincent Burlat
- Université François Rabelais de Tours; EA Plant Biotechnology and Biomolecules; Avenue Monge; Tours, France
- Université de Toulouse; UPS; UMR; Surfaces Cellulaires et Signalisation chez les Végétaux; Castanet-Tolosan, France
- CNRS; UMR; Castanet-Tolosan, France
| | - Ulrich Schurr
- ICG-3 Phytosphere; Forschungszentrum Jülich; Jülich, Germany
| | - Ursula SR Röse
- Department of Biology; University of New England; Biddeford, Maine, USA
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Lanoue A, Burlat V, Henkes GJ, Koch I, Schurr U, Röse USR. De novo biosynthesis of defense root exudates in response to Fusarium attack in barley. New Phytol 2010; 185:577-88. [PMID: 19878462 DOI: 10.1111/j.1469-8137.2009.03066.x] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Summary *Despite recent advances in elucidation of natural products in root exudates, there are significant gaps in our understanding of the ecological significance of products in the rhizosphere. *Here, we investigated the potential of barley (Hordeum vulgare) to secrete defense root exudates when challenged by the soilborne pathogen Fusarium graminearum. *Liquid chromatography with photodiode array detection (LC-DAD) was used to profile induced small-molecular-weight exudates. Thus, t-cinnamic, p-coumaric, ferulic, syringic and vanillic acids were assigned to plant metabolism and were induced within 2 d after Fusarium inoculation. Biological tests demonstrated the ability of those induced root exudates to inhibit the germination of F. graminearum macroconidia. In vivo labeling experiments with (13)CO(2) revealed that the secreted t-cinnamic acid was synthesized de novo within 2 d of fungal infection. Simultaneously to its root exudation, t-cinnamic acid was accumulated in the roots. Microscopic analysis showed that nonlignin cell wall phenolics were induced not only in necrosed zones but in all root tissues. *Results suggest that barley plants under attack respond by de novo biosynthesis and secretion of compounds with antimicrobial functions that may mediate natural disease resistance.
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Affiliation(s)
- Arnaud Lanoue
- ICG-3 Phytosphere, Forschungszentrum Jülich, D-52425 Jülich, Germany.
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Guirimand G, Burlat V, Oudin A, Lanoue A, St-Pierre B, Courdavault V. Optimization of the transient transformation of Catharanthus roseus cells by particle bombardment and its application to the subcellular localization of hydroxymethylbutenyl 4-diphosphate synthase and geraniol 10-hydroxylase. Plant Cell Rep 2009; 28:1215-34. [PMID: 19504099 DOI: 10.1007/s00299-009-0722-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2009] [Revised: 04/30/2009] [Accepted: 05/14/2009] [Indexed: 05/07/2023]
Abstract
The monoterpene indole alkaloids (MIA) synthesized in Catharanthus roseus are highly valuable metabolites due to their pharmacological properties. In planta, the MIA biosynthetic pathway exhibits a complex compartmentation at the cellular level, whereas subcellular data are sparse. To gain insight into this level of organization, we have developed a high efficiency green fluorescent protein (GFP) imaging approach to systematically localize MIA biosynthetic enzymes within C. roseus cells following a biolistic-mediated transient transformation. The biolistic transformation protocol has been first optimized to obtain a high number of transiently transformed cells with a ~12-fold increase compared to previous protocols and thus to clearly and easily identify the fusion GFP expression patterns in numerous cells. On the basis of this protocol, the subcellular localization of hydroxymethylbutenyl 4-diphosphate synthase (HDS), a methyl erythritol phosphate pathway enzyme and geraniol 10-hydroxylase (G10H), a monoterpene-secoiridoid pathway enzyme has been next characterized. Besides showing the accumulation of HDS within plastids of C. roseus cells, we also provide evidences of the presence of HDS in long stroma-filled thylakoid-free extensions budding from plastids, i.e. stromules that are in close association with other organelles such as endoplasmic reticulum (ER) or mitochondria in agreement with their proposed function in enhancing interorganelle metabolite exchanges. Furthermore, we also demonstrated that G10H is an ER-anchored protein, consistent with the presence of a transmembrane helix at the G10H N-terminal end, which is both necessary and sufficient to drive the ER anchoring.
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Affiliation(s)
- Grégory Guirimand
- Université François Rabelais de Tours, EA 2106 Biomolécules et Biotechnologies Végétales, IFR 135 Imagerie fonctionnelle, 37200, Tours, France
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Courdavault V, Burlat V, St-Pierre B, Giglioli-Guivarc'h N. Proteins prenylated by type I protein geranylgeranyltransferase act positively on the jasmonate signalling pathway triggering the biosynthesis of monoterpene indole alkaloids in Catharanthus roseus. Plant Cell Rep 2009; 28:83-93. [PMID: 18813931 DOI: 10.1007/s00299-008-0610-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2008] [Revised: 09/03/2008] [Accepted: 09/07/2008] [Indexed: 05/26/2023]
Abstract
In Catharanthus roseus, the first step of monoterpenoid indole alkaloids (MIA) biosynthesis results from the condensation of the indole precursor tryptamine with the terpenoid precursor secologanin. Secologanin biosynthesis requires two successive biosynthetic pathways, the plastidial methyl-D: -erythritol 4-phosphate (MEP) pathway and the monoterpene secoiridoid pathway. In C. roseus cell culture, the expression of several genes encoding enzymes of these two pathways is dramatically down-regulated by auxin, while strongly enhanced by cytokinin and methyl-jasmonate. Furthermore, our previous studies have shown that protein prenylation events are also involved in the transcriptional activation of some of these genes. In the present work, we investigate the involvement of protein prenylation in the jasmonate signalling pathway leading to MIA biosynthesis. Inhibition of protein prenyltransferase down-regulates the methyl-jasmonate-induced expression of MEP and monoterpene secoiridoid pathway genes and thus abolishes MIA biosynthesis. Jointly, it also inhibits the methyl-jasmonate-induced expression of the AP2/ERF transcription factor ORCA3 that acts as a central regulator of MIA biosynthesis. Finally, a specific silencing of protein prenyltransferases mediated by RNA interference in C. roseus cells shows that inhibition of type I protein geranylgeranyltransferase (PGGT-I) down-regulates the methyl-jasmonate-induced expression of ORCA3, suggesting that PGGT-I prenylated proteins are part of the early steps of jasmonate signalling leading to MIA biosynthesis.
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Affiliation(s)
- Vincent Courdavault
- Université François-Rabelais de Tours, UFR Sciences et Techniques, Parc de Grandmont, 37200, Tours, France
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Oudin A, Mahroug S, Courdavault V, Hervouet N, Zelwer C, Rodríguez-Concepción M, St-Pierre B, Burlat V. Spatial distribution and hormonal regulation of gene products from methyl erythritol phosphate and monoterpene-secoiridoid pathways in Catharanthus roseus. Plant Mol Biol 2007; 65:13-30. [PMID: 17611800 DOI: 10.1007/s11103-007-9190-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2007] [Accepted: 05/14/2007] [Indexed: 05/07/2023]
Abstract
The monoterpene indole alkaloids (MIAs) from Madagascar periwinkle (Catharanthus roseus) are secondary metabolites of high interest due to their therapeutical values. Secologanin, the monoterpenoid moiety incorporated into MIAs, is derived from the plastidial methyl-D: -erythritol 4-phosphate (MEP) pathway. Here, we have cloned a cDNA encoding hydroxymethylbutenyl diphosphate synthase (HDS), a MEP pathway enzyme, and generated antibodies to investigate the distribution of transcripts and protein in MIA-producing aerial tissues. Consistent with our earlier work, transcripts for the genes encoding the so-called early steps in monoterpenoid biosynthesis (ESMB) enzymes (HDS, others MEP pathway enzymes and geraniol 10-hydroxylase) were preferentially co-localized to internal phloem associated parenchyma (IPAP) cells. By contrast, transcripts for the enzyme catalysing the last biosynthetic step to secologanin, secologanin synthase, were found in the epidermis. A coordinated response of ESMB genes was also observed in cell cultures stimulated to synthesise MIAs by hormone treatment, whereas no changes in SLS expression were detected under the same experimental conditions. Immunocytolabelling studies with the HDS-specific serum demonstrated the localisation of HDS to the plastid stroma and revealed that HDS proteins were most abundant in IPAP cells but could also be found in other cell types, including epidermal and mesophyll cells. Besides showing the existence of post-transcriptional mechanisms regulating the levels of HDS in C. roseus cells, our results support that intercellular translocation likely plays an important role during monoterpene-secoiridoid assembly.
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Affiliation(s)
- Audrey Oudin
- EA 2106 Biomolécules et Biotechnologies Végétales, UFR des Sciences Pharmaceutiques, Université François Rabelais de Tours, Tours, France.
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Montiel G, Breton C, Thiersault M, Burlat V, Jay-Allemand C, Gantet P. Transcription factor Agamous-like 12 from Arabidopsis promotes tissue-like organization and alkaloid biosynthesis in Catharanthus roseus suspension cells. Metab Eng 2007; 9:125-32. [PMID: 17157545 DOI: 10.1016/j.ymben.2006.10.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2005] [Revised: 10/06/2006] [Accepted: 10/09/2006] [Indexed: 11/26/2022]
Abstract
In Catharanthus roseus, monomeric terpenoid indole alkaloids (TIAs) are biosynthesized in specific tissues, particularly in roots, but failed to be produced by in vitro undifferentiated suspension cells. In this paper, we describe the impact of the root-specific MADS-box transcription factor Agamous-like 12 (Agl12) from Arabidopsis thaliana on the differentiation of suspension cells from C. roseus. The expression of Agl12 is sufficient to promote an organization of suspension cells into globular parenchyma-like aggregates but is insufficient by itself to induce complete morphological root differentiation. Agl12 expression selectively increases the expression of genes encoding enzymes involved in the early biosynthesis steps of the terpenic precursor of alkaloids. The transgenic cell lines expressing Agl12 produced significant amounts of ajmalicine, an antihypertensive TIA that normally accumulates in C. roseus roots. The present paper indicates that transcription factors involved in tissue or organ differentiation may constitute new metabolic engineering tools that could help to design in vitro cultured cells able to produce specific valuable secondary metabolites.
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Affiliation(s)
- Grégory Montiel
- Université de Tours Unité sous Contrat reconnue par l'Institut National de la Recherche Agronomique, Facteurs de Transcription et Ingénierie Métabolique Végétale, UFR des Sciences et Techniques et UFR des Sciences Pharmaceutiques, Tours, France
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Mahroug S, Courdavault V, Thiersault M, St-Pierre B, Burlat V. Epidermis is a pivotal site of at least four secondary metabolic pathways in Catharanthus roseus aerial organs. Planta 2006; 223:1191-200. [PMID: 16322983 DOI: 10.1007/s00425-005-0167-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2005] [Accepted: 10/13/2005] [Indexed: 05/05/2023]
Abstract
Catharanthus roseus produces a wide range of secondary metabolites, some of which present high therapeutic values such as antitumoral monoterpenoid indole alkaloids (MIAs), vinblastine and vincristine, and the hypotensive MIA, ajmalicine. We have recently shown that a complex multicellular organisation of the MIA biosynthetic pathway occurred in C. roseus aerial organs. In particular, the final steps of both the secoiridoid-monoterpene and indole pathways specifically occurred in the epidermis of leaves and petals. Chorismate is the common precursor of indole and phenylpropanoid pathways. In an attempt to better map the spatio-temporal organisation of diverse secondary metabolisms in Catharanthus roseus aerial organs, we studied the expression pattern of genes encoding enzymes of the phenylpropanoid pathway (phenylalanine ammonia-lyase [PAL, E.C. 4.3.1.5], cinnamate 4-hydroxylase [C4H, E.C. 1.14.13.11] and chalcone synthase [CHS, E.C. 2.3.1.74]). In situ hybridisation experiments revealed that CrPAL and CrC4H were specifically localised to lignifying xylem, whereas CrPAL, CrC4H and CrCHS were specifically expressed in the flavonoid-rich upper epidermis. Interestingly, these three genes were co-expressed in the epidermis (at least the upper, adaxial one) together with three MIA-related genes, indicating that single epidermis cells were capable of concomitantly producing a wide range of diverse secondary metabolites (e.g. flavonoïds, indoles, secoiridoid-monoterpenes and MIAs). These results, and data showing co-accumulation of flavonoids and alkaloids in single cells of C. roseus cell lines, indicated the spatio-temporal feasibility of putative common regulation mechanisms for the expression of these genes involved in at least four distinct secondary metabolisms.
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Affiliation(s)
- Samira Mahroug
- Université François-Rabelais de Tours, EA 2106 Biomolécules et Biotechnologies Végétales UFR Sciences et Techniques, Parc de Grandmont, 37200 Tours, France
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Leménager D, Ouelhazi L, Mahroug S, Veau B, St-Pierre B, Rideau M, Aguirreolea J, Burlat V, Clastre M. Purification, molecular cloning, and cell-specific gene expression of the alkaloid-accumulation associated protein CrPS in Catharanthus roseus. J Exp Bot 2005; 56:1221-8. [PMID: 15737982 DOI: 10.1093/jxb/eri116] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Identification of molecular markers of monoterpenoid indole alkaloid (MIA) accumulation in cell-suspension cultures of Madagascar periwinkle (Catharanthus roseus (L.) G. Don) was performed by two-dimensional polyacrylamide gel electrophoresis. Comparison of the protein patterns from alkaloid-producing and non-producing cells showed the specific occurrence of a 28 kDa polypeptide restricted to cells accumulating MIAs. The polypeptide was purified by preparative two-dimensional gel electrophoresis, digested with trypsin, and microsequenced by the Edman degradation method. Cloning of the corresponding cDNA revealed that the protein which has been named CrPS (Catharanthus roseus Protein S) is a member of the alpha/beta hydrolase superfamily. Time-course expression studies by northern blot analysis confirmed that CrPS gene expression was associated with MIA accumulation in cell suspension cultures. In the whole plant, multicellular compartmentation is required for alkaloid biosynthesis. In situ mRNA hybridization on developing leaves revealed that CrPS mRNA and transcripts encoding the first enzymes of the MIA pathway were co-localized in internal phloem parenchyma cells. The possible implication of the alkaloid-accumulation associated protein CrPS in the signal transduction pathway leading to MIA production is discussed.
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Affiliation(s)
- Diane Leménager
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 31 Avenue Monge, F-37200 Tours, France
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Courdavault V, Burlat V, St-Pierre B, Gantet P, Giglioli-Guivarc'h N. Isolation of a cDNA encoding the alpha-subunit of CAAX-prenyltransferases from Catharanthus roseus and the expression of the active recombinant protein farnesyltransferase. Cell Mol Biol Lett 2005; 10:649-57. [PMID: 16341273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023] Open
Abstract
Crfta/ggt_Ia (AF525030), a cDNA encoding the ?-subunit of the two types of CaaX-prenyltransferase (CaaX-PTase), i.e. protein farnesyltransferase (PFT) and type I protein geranylgeranyltransferase, was cloned from Catharanthus roseus via a PCR strategy. Crfta/ggt_Ia is 1381-bp long and bears a 999-bp open reading frame encoding a protein of 332 residues (FTA) that shares 66% identity with its Lycopersicon esculentum orthologue. Southern blot analysis revealed that FTA is encoded by a single gene copy per haploid genome. Co-expression of Crfta/ggt_Ia and Crftb encoding the beta-subunit of PFT yielded purified active recombinant PFT. This enzyme is able to prenylate proteins from C. roseus, and could be used as a potent tool for prenylated protein identification.
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Affiliation(s)
- Vincent Courdavault
- Université François-Rabelais de Tours, EA 2106 Biomolécules et Biotechnologies Végétales, UFR Sciences et Techniques, Parc de Grandmont, 37200 Tours, France.
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