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Shen X, Guan Z, Zhang C, Yan Z, Sun C. The multicellular compartmentation of plant specialized metabolism. CURRENT OPINION IN PLANT BIOLOGY 2024; 81:102616. [PMID: 39142253 DOI: 10.1016/j.pbi.2024.102616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 07/17/2024] [Accepted: 07/22/2024] [Indexed: 08/16/2024]
Abstract
The phenomenon of multicellular compartmentation in biosynthetic pathways has been documented for only a limited subset of specialized metabolites, despite its hypothesized significance in facilitating plant survival and adaptation to environmental stress. Transporters that shuttle metabolic intermediates between cells are hypothesized to be integral components enabling compartmentalized biosynthesis. Nevertheless, our understanding of the multicellular compartmentation of plant specialized metabolism and the associated intermediate transporters remains incomplete. The emergence of single-cell and spatial multiomics techniques holds promise for shedding light on unresolved questions in this field, such as the prevalence of multicellular compartmentation across the plant kingdom and the specific types of specialized metabolites whose biosynthetic pathways are prone to compartmentation. Advancing our understanding of the mechanisms underlying multicellular compartmentation will contribute to improving the production of specialized target metabolites through metabolic engineering or synthetic biology.
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Affiliation(s)
- Xiaofeng Shen
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Beijing, 100700, China
| | - Zhijing Guan
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Chuyi Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Zhaojiu Yan
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Chao Sun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Beijing, 100700, China.
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Asia, Sammer Y, Vendier L, Massiot G. Structure and Synthesis of Vindolicine and Derivatives. Chem Biodivers 2024; 21:e202301928. [PMID: 38409504 DOI: 10.1002/cbdv.202301928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 01/15/2024] [Indexed: 02/28/2024]
Abstract
This article describes the reaction of vindoline with formaldehyde and trimethyl orthoformate to prepare vindolicine, tris-vindolicinyl methane and higher molecular weight homologues. The synthesis of 10-formyl vindoline as an intermediate allowed further exploration of its chemistry, in particular the reaction with acetone which yielded a symmetrical dimer, which was further reacted with vindoline to give molecules containing three and four vindoline units. These molecules were characterized by NMR and for some of them (vindolicine, 10-formyl vindoline, 10-(1'-(but-1'-en-3'-one))-vindoline) by X-ray crystallography. Depending on the substitution and on the absence of axes of symmetry, the NMR spectra displayed non-equivalent spin systems for the vindoline moieties. The dimer formed from the double condensation of 10-formyl vindoline with acetone showed cytotoxic activity in the micromolar range.
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Affiliation(s)
- Asia
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Sindh, Pakistan
| | - Yousuf Sammer
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Sindh, Pakistan
| | - Laure Vendier
- UPR CNRS 8241, Laboratoire de Chimie de Coordination, 205 Route de Narbonne, 31077, Toulouse Cedex 04, France
| | - Georges Massiot
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, Université Reims-Champagne-Ardenne, UFR Sciences, BP 1039, CEDEX 2, 51687, Reims, France
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Jamal QMS, Ahmad V. Identification of Metabolites from Catharanthus roseus Leaves and Stem Extract, and In Vitro and In Silico Antibacterial Activity against Food Pathogens. Pharmaceuticals (Basel) 2024; 17:450. [PMID: 38675411 PMCID: PMC11054124 DOI: 10.3390/ph17040450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/23/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
The plant produced powerful secondary metabolites and showed strong antibacterial activities against food-spoiling bacterial pathogens. The present study aimed to evaluate antibacterial activities and to identify metabolites from the leaves and stems of Catharanthus roseus using NMR spectroscopy. The major metabolites likely to be observed in aqueous extraction were 2,3-butanediol, quinic acids, vindoline, chlorogenic acids, vindolinine, secologanin, and quercetin in the leaf and stem of the Catharanthus roseus. The aqueous extracts from the leaves and stems of this plant have been observed to be most effective against food spoilage bacterial strains, followed by methanol and hexane. However, leaf extract was observed to be most significant in terms of the content and potency of metabolites. The minimum inhibitory concentration (20 µg/mL) and bactericidal concentrations (35 g/mL) of leaf extract were observed to be significant as compared to the ampicillin. Molecular docking showed that chlorogenic acid and vindolinine strongly interacted with the bacterial penicillin-binding protein. The docking energies of chlorogenic acid and vindolinine also indicated that these could be used as food preservatives. Therefore, the observed metabolite could be utilized as a potent antibacterial compound for food preservation or to treat their illness, and further research is needed to perform.
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Affiliation(s)
- Qazi Mohammad Sajid Jamal
- Department of Health Informatics, College of Applied Medical Sciences, Qassim University, Buraydah 51452, Saudi Arabia
| | - Varish Ahmad
- Health Information Technology Department, The Applied College, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
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Cao J, Yang B, Zhang M, Yu F. Regulation of T16H subcellular localization for promoting its catalytic efficiency in yeast cells. Biotechnol Lett 2024; 46:29-35. [PMID: 37971563 DOI: 10.1007/s10529-023-03442-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/03/2023] [Accepted: 10/16/2023] [Indexed: 11/19/2023]
Abstract
To investigate the effect of subcellular localization on the transformation efficiency of heterologous expressed functional P450s in yeast. Microbial biotransformation offers a promising substitute for the direct extraction of natural products, but its viability in industrial applications depends on achieving high transformation efficiencies. To investigate the influence of subcellular microenvironments on the activity of heterologously expressed P450s, Catharanthus roseus tabersonine 16-hydroxylase (T16H) was chosen, and its subcellular localization was regulated by fusing organelle-localization signals. Interestingly, this manipulation had no effect on the gene expression levels of T16H, but resulted in varying conversion rates from tabersonine to 16-hydroxy tabersonine. Notably, the highest transformation efficiency was observed in yeast cells expressing peroxisome-localized T16H. Given the alkaline pH optimum for P450s, the alkaline peroxisomal lumen could be a suitable compartment for P450s reactions to achieve high transformation efficiency using yeast cells. Different organelle-localization of T16H in yeast cells resulted in varying conversion rates, suggesting that compartmentalizing the expression of target enzymes could be a viable approach to increase transformation efficiency in yeast.
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Affiliation(s)
- Jiancong Cao
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Bingrun Yang
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Mengxia Zhang
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China
| | - Fang Yu
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China.
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Guedes JG, Ribeiro R, Carqueijeiro I, Guimarães AL, Bispo C, Archer J, Azevedo H, Fonseca NA, Sottomayor M. The leaf idioblastome of the medicinal plant Catharanthus roseus is associated with stress resistance and alkaloid metabolism. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:274-299. [PMID: 37804484 PMCID: PMC10735432 DOI: 10.1093/jxb/erad374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 10/06/2023] [Indexed: 10/09/2023]
Abstract
Catharanthus roseus leaves produce a range of monoterpenoid indole alkaloids (MIAs) that include low levels of the anticancer drugs vinblastine and vincristine. The MIA pathway displays a complex architecture spanning different subcellular and cell type localizations, and is under complex regulation. As a result, the development of strategies to increase the levels of the anticancer MIAs has remained elusive. The pathway involves mesophyll specialized idioblasts where the late unsolved biosynthetic steps are thought to occur. Here, protoplasts of C. roseus leaf idioblasts were isolated by fluorescence-activated cell sorting, and their differential alkaloid and transcriptomic profiles were characterized. This involved the assembly of an improved C. roseus transcriptome from short- and long-read data, IDIO+. It was observed that C. roseus mesophyll idioblasts possess a distinctive transcriptomic profile associated with protection against biotic and abiotic stresses, and indicative that this cell type is a carbon sink, in contrast to surrounding mesophyll cells. Moreover, it is shown that idioblasts are a hotspot of alkaloid accumulation, suggesting that their transcriptome may hold the key to the in-depth understanding of the MIA pathway and the success of strategies leading to higher levels of the anticancer drugs.
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Affiliation(s)
- Joana G Guedes
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661 Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
- Programa Doutoral em Biologia Molecular e Celular (MCbiology), Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, 4050-313 Porto, Portugal
| | - Rogério Ribeiro
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661 Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, 4169-007 Porto, Portugal
| | - Inês Carqueijeiro
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661 Vairão, Portugal
| | - Ana Luísa Guimarães
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, 4169-007 Porto, Portugal
| | - Cláudia Bispo
- Instituto Gulbenkian de Ciência, Rua da Quinta Grande 6, 2780-156 Oeiras, Portugal
| | - John Archer
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661 Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
| | - Herlander Azevedo
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661 Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, 4169-007 Porto, Portugal
| | - Nuno A Fonseca
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661 Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
| | - Mariana Sottomayor
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661 Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, 4169-007 Porto, Portugal
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Kaminski KP, Bovet L, Hilfiker A, Laparra H, Schwaar J, Sierro N, Lang G, De Palo D, Guy PA, Laszlo C, Goepfert S, Ivanov NV. Suppression of pyrrolidine ring biosynthesis and its effects on gene expression and subsequent accumulation of anatabine in leaves of tobacco (N. tabacum L.). BMC Genomics 2023; 24:516. [PMID: 37667170 PMCID: PMC10476381 DOI: 10.1186/s12864-023-09588-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 08/14/2023] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND Anatabine, although being one of four major tobacco alkaloids, is never accumulated in high quantity in any of the naturally occurring species from the Nicotiana genus. Previous studies therefore focused on transgenic approaches to synthetize anatabine, most notably by generating transgenic lines with suppressed putrescine methyltransferase (PMT) activity. This led to promising results, but the global gene expression of plants with such distinct metabolism has not been analyzed. In the current study, we describe how these plants respond to topping and the downstream effects on alkaloid biosynthesis. RESULTS The surge in anatabine accumulation in PMT transgenic lines after topping treatment and its effects on gene expression changes were analyzed. The results revealed increases in expression of isoflavone reductase-like (A622) and berberine bridge-like enzymes (BBLs) oxidoreductase genes, previously shown to be crucial for the final steps of nicotine biosynthesis. We also observed significantly higher methylputrescine oxidase (MPO) expression in all plants subjected to topping treatment. In order to investigate if MPO suppression would have the same effects as that of PMT, we generated transgenic plants. These plants with suppressed MPO expression showed an almost complete drop in leaf nicotine content, whereas leaf anatabine was observed to increase by a factor of ~ 1.6X. CONCLUSION Our results are the first concrete evidence that suppression of MPO leads to decreased nicotine in favor of anatabine in tobacco roots and that this anatabine is successfully transported to tobacco leaves. Alkaloid transport in plants remains to be investigated to higher detail due to high variation of its efficiency among Nicotiana species and varieties of tobacco. Our research adds important step to better understand pyrrolidine ring biosynthesis and its effects on gene expression and subsequent accumulation of anatabine.
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Affiliation(s)
- Kacper Piotr Kaminski
- Philip Morris International R&D, Philip Morris Products S.A, Quai Jeanrenaud 5, CH-2000, Neuchâtel, Switzerland
| | - Lucien Bovet
- Philip Morris International R&D, Philip Morris Products S.A, Quai Jeanrenaud 5, CH-2000, Neuchâtel, Switzerland
| | - Aurore Hilfiker
- Philip Morris International R&D, Philip Morris Products S.A, Quai Jeanrenaud 5, CH-2000, Neuchâtel, Switzerland
| | - Helene Laparra
- Philip Morris International R&D, Philip Morris Products S.A, Quai Jeanrenaud 5, CH-2000, Neuchâtel, Switzerland
| | - Joanne Schwaar
- Philip Morris International R&D, Philip Morris Products S.A, Quai Jeanrenaud 5, CH-2000, Neuchâtel, Switzerland
| | - Nicolas Sierro
- Philip Morris International R&D, Philip Morris Products S.A, Quai Jeanrenaud 5, CH-2000, Neuchâtel, Switzerland
| | - Gerhard Lang
- Philip Morris International R&D, Philip Morris Products S.A, Quai Jeanrenaud 5, CH-2000, Neuchâtel, Switzerland
| | - Damien De Palo
- Philip Morris International R&D, Philip Morris Products S.A, Quai Jeanrenaud 5, CH-2000, Neuchâtel, Switzerland
| | - Philippe Alexandre Guy
- Philip Morris International R&D, Philip Morris Products S.A, Quai Jeanrenaud 5, CH-2000, Neuchâtel, Switzerland
| | - Csaba Laszlo
- Philip Morris International R&D, Philip Morris Products S.A, Quai Jeanrenaud 5, CH-2000, Neuchâtel, Switzerland
| | - Simon Goepfert
- Philip Morris International R&D, Philip Morris Products S.A, Quai Jeanrenaud 5, CH-2000, Neuchâtel, Switzerland
| | - Nikolai V Ivanov
- Philip Morris International R&D, Philip Morris Products S.A, Quai Jeanrenaud 5, CH-2000, Neuchâtel, Switzerland.
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7
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Singh AA, Ghosh A, Agrawal M, Agrawal SB. Secondary metabolites responses of plants exposed to ozone: an update. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:88281-88312. [PMID: 37440135 DOI: 10.1007/s11356-023-28634-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 07/02/2023] [Indexed: 07/14/2023]
Abstract
Tropospheric ozone (O3) is a secondary pollutant that causes oxidative stress in plants due to the generation of excess reactive oxygen species (ROS). Phenylpropanoid metabolism is induced as a usual response to stress in plants, and induction of key enzyme activities and accumulation of secondary metabolites occur, upon O3 exposure to provide resistance or tolerance. The phenylpropanoid, isoprenoid, and alkaloid pathways are the major secondary metabolic pathways from which plant defense metabolites emerge. Chronic exposure to O3 significantly accelerates the direction of carbon flows toward secondary metabolic pathways, resulting in a resource shift in favor of the synthesis of secondary products. Furthermore, since different cellular compartments have different levels of ROS sensitivity and metabolite sets, intracellular compartmentation of secondary antioxidative metabolites may play a role in O3-induced ROS detoxification. Plants' responses to resource partitioning often result in a trade-off between growth and defense under O3 stress. These metabolic adjustments help the plants to cope with the stress as well as for achieving new homeostasis. In this review, we discuss secondary metabolic pathways in response to O3 in plant species including crops, trees, and medicinal plants; and how the presence of this stressor affects their role as ROS scavengers and structural defense. Furthermore, we discussed how O3 affects key physiological traits in plants, foliar chemistry, and volatile emission, which affects plant-plant competition (allelopathy), and plant-insect interactions, along with an emphasis on soil dynamics, which affect the composition of soil communities via changing root exudation, litter decomposition, and other related processes.
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Affiliation(s)
- Aditya Abha Singh
- Department of Botany, University of Lucknow, -226007, Lucknow, India
| | - Annesha Ghosh
- Laboratory of Air Pollution and Global Climate Change, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Madhoolika Agrawal
- Laboratory of Air Pollution and Global Climate Change, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Shashi Bhushan Agrawal
- Laboratory of Air Pollution and Global Climate Change, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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Li C, Wood JC, Vu AH, Hamilton JP, Rodriguez Lopez CE, Payne RME, Serna Guerrero DA, Gase K, Yamamoto K, Vaillancourt B, Caputi L, O'Connor SE, Robin Buell C. Single-cell multi-omics in the medicinal plant Catharanthus roseus. Nat Chem Biol 2023:10.1038/s41589-023-01327-0. [PMID: 37188960 PMCID: PMC10374443 DOI: 10.1038/s41589-023-01327-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 04/04/2023] [Indexed: 05/17/2023]
Abstract
Advances in omics technologies now permit the generation of highly contiguous genome assemblies, detection of transcripts and metabolites at the level of single cells and high-resolution determination of gene regulatory features. Here, using a complementary, multi-omics approach, we interrogated the monoterpene indole alkaloid (MIA) biosynthetic pathway in Catharanthus roseus, a source of leading anticancer drugs. We identified clusters of genes involved in MIA biosynthesis on the eight C. roseus chromosomes and extensive gene duplication of MIA pathway genes. Clustering was not limited to the linear genome, and through chromatin interaction data, MIA pathway genes were present within the same topologically associated domain, permitting the identification of a secologanin transporter. Single-cell RNA-sequencing revealed sequential cell-type-specific partitioning of the leaf MIA biosynthetic pathway that, when coupled with a single-cell metabolomics approach, permitted the identification of a reductase that yields the bis-indole alkaloid anhydrovinblastine. We also revealed cell-type-specific expression in the root MIA pathway.
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Affiliation(s)
- Chenxin Li
- Center for Applied Genetic Technologies, University of Georgia, Athens, GA, USA
| | - Joshua C Wood
- Center for Applied Genetic Technologies, University of Georgia, Athens, GA, USA
| | - Anh Hai Vu
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - John P Hamilton
- Center for Applied Genetic Technologies, University of Georgia, Athens, GA, USA
| | | | - Richard M E Payne
- The John Innes Centre, Department of Biological Chemistry, Norwich Research Park, Norwich, UK
| | | | - Klaus Gase
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Kotaro Yamamoto
- School of Science, Association of International Arts and Science, Yokohama City University, Yokohama, Japan
| | | | - Lorenzo Caputi
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Jena, Germany.
| | - Sarah E O'Connor
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Jena, Germany.
| | - C Robin Buell
- Center for Applied Genetic Technologies, University of Georgia, Athens, GA, USA.
- Department of Crop and Soil Sciences, University of Georgia, Athens, GA, USA.
- Institute of Plant Breeding, Genetics and Genomics, University of Georgia, Athens, GA, USA.
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Raorane ML, Manz C, Hildebrandt S, Mielke M, Thieme M, Keller J, Bunzel M, Nick P. Cell type matters: competence for alkaloid metabolism differs in two seed-derived cell strains of Catharanthus roseus. PROTOPLASMA 2023; 260:349-369. [PMID: 35697946 PMCID: PMC9931846 DOI: 10.1007/s00709-022-01781-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
Since the discovery of the anticancer drugs vinblastine and vincristine, Catharanthus roseus has been intensively studied for biosynthesis of several terpene indole alkaloids (TIAs). Due to their low abundance in plant tissues at a simultaneously high demand, modes of production alternative to conventional extraction are mandatory. Plant cell fermentation might become one of these alternatives, yet decades of research have shown limited success to certain product classes, leading to the question: how to preserve the intrinsic ability to produce TIAs (metabolic competence) in cell culture? We used the strategy to use the developmental potency of mature embryos to generate such strains. Two cell strains (C1and C4) from seed embryos of Catharanthus roseus were found to differ not only morphologically, but also in their metabolic competence. This differential competence became manifest not only under phytohormone elicitation, but also upon feeding with alkaloid pathway precursors. The more active strain C4 formed larger cell aggregates and was endowed with longer mitochondria. These cellular features were accompanied by higher alkaloid accumulation in response to methyl jasmonate (MeJA) elicitation. The levels of catharanthine could be increased significantly, while the concurrent vindoline branch of the pathway was blocked, such that no bisindole alkaloids were detectable. By feeding vindoline to MeJA-elicited C4 cells, vincristine became detectable; however, only to marginal amounts. In conclusion, these results show that cultured cells are not "de-differentiated", but can differ in metabolic competence. In addition to elicitation and precursor feeding, the cellular properties of the "biomatter" are highly relevant for the success of plant cell fermentation.
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Affiliation(s)
- Manish L Raorane
- Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg 4, 76131, Karlsruhe, Germany.
- Institute of Pharmacy, Martin-Luther-University, Hoher Weg 8, 06120, Halle-WittenbergHalle (Saale), Germany.
| | - Christina Manz
- Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg 4, 76131, Karlsruhe, Germany
| | - Sarah Hildebrandt
- Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg 4, 76131, Karlsruhe, Germany
| | - Marion Mielke
- Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg 4, 76131, Karlsruhe, Germany
| | - Marc Thieme
- Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg 4, 76131, Karlsruhe, Germany
| | - Judith Keller
- Institute of Applied Biosciences, Department of Food Chemistry and Phytochemistry, Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
| | - Mirko Bunzel
- Institute of Applied Biosciences, Department of Food Chemistry and Phytochemistry, Karlsruhe Institute of Technology (KIT), 76131, Karlsruhe, Germany
| | - Peter Nick
- Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg 4, 76131, Karlsruhe, Germany
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10
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Lemos Cruz P, Carqueijeiro I, Koudounas K, Bomzan DP, Stander EA, Abdallah C, Kulagina N, Oudin A, Lanoue A, Giglioli-Guivarc'h N, Nagegowda DA, Papon N, Besseau S, Clastre M, Courdavault V. Identification of a second 16-hydroxytabersonine-O-methyltransferase suggests an evolutionary relationship between alkaloid and flavonoid metabolisms in Catharanthus roseus. PROTOPLASMA 2023; 260:607-624. [PMID: 35947213 DOI: 10.1007/s00709-022-01801-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
The medicinal plant Catharanthus roseus biosynthesizes many important drugs for human health, including the anticancer monoterpene indole alkaloids (MIAs) vinblastine and vincristine. Over the past decades, the continuous increase in pharmaceutical demand has prompted several research groups to characterize MIA biosynthetic pathways for considering future metabolic engineering processes of supply. In line with previous work suggesting that diversification can potentially occur at various steps along the vindoline branch, we were here interested in investigating the involvement of distinct isoforms of tabersonine-16-O-methyltransferase (16OMT) which plays a pivotal role in the MIA biosynthetic pathway. By combining homology searches based on the previously characterized 16OMT1, phylogenetic analyses, functional assays in yeast, and biochemical and in planta characterizations, we identified a second isoform of 16OMT, referred to as 16OMT2. 16OMT2 appears to be a multifunctional enzyme working on both MIA and flavonoid substrates, suggesting that a constrained evolution of the enzyme for accommodating the MIA substrate has probably occurred to favor the apparition of 16OMT2 from an ancestral specific flavonoid-O-methyltransferase. Since 16OMT1 and 16OMT2 displays a high sequence identity and similar kinetic parameters for 16-hydroxytabersonine, we postulate that 16OMT1 may result from a later 16OMT2 gene duplication accompanied by a continuous neofunctionalization leading to an almost complete loss of flavonoid O-methyltransferase activity. Overall, these results participate in increasing our knowledge on the evolutionary processes that have likely led to enzyme co-optation for MIA synthesis.
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Affiliation(s)
- Pamela Lemos Cruz
- Université de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Ines Carqueijeiro
- Université de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | | | - Dikki Pedenla Bomzan
- Molecular Plant Biology and Biotechnology Lab, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, 560065, India
| | - Emily Amor Stander
- Université de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Cécile Abdallah
- Université de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Natalja Kulagina
- Université de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Audrey Oudin
- Université de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Arnaud Lanoue
- Université de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | | | - Dinesh A Nagegowda
- Molecular Plant Biology and Biotechnology Lab, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, 560065, India
| | - Nicolas Papon
- Univ Angers, Univ Brest, IRF, SFR, ICAT, F-49000, Angers, France
| | - Sébastien Besseau
- Université de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Marc Clastre
- Université de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Vincent Courdavault
- Université de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France.
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11
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Vasilev N. Medicinal Plants: Guests and Hosts in the Heterologous Expression of High-Value Products. PLANTA MEDICA 2022; 88:1175-1189. [PMID: 34521134 DOI: 10.1055/a-1576-4148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Medicinal plants play an important dual role in the context of the heterologous expression of high-value pharmaceutical products. On the one hand, the classical biochemical and modern omics approaches allowed for the discovery of various genes encoding biosynthetic pathways in medicinal plants. Recombinant DNA technology enabled introducing these genes and regulatory elements into host organisms and enhancing the heterologous production of the corresponding secondary metabolites. On the other hand, the transient expression of foreign DNA in plants facilitated the production of numerous proteins of pharmaceutical importance. This review summarizes several success stories of the engineering of plant metabolic pathways in heterologous hosts. Likewise, a few examples of recombinant protein expression in plants for therapeutic purposes are also highlighted. Therefore, the importance of medicinal plants has grown immensely as sources for valuable products of low and high molecular weight. The next step ahead for bioengineering is to achieve more success stories of industrial-scale production of secondary plant metabolites in microbial systems and to fully exploit plant cell factories' commercial potential for recombinant proteins.
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Affiliation(s)
- Nikolay Vasilev
- TU Dortmund University, Biochemical and Chemical Engineering, Technical Biochemistry, Dortmund, Germany
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12
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Božunović J, Milutinović M, Aničić N, Skorić M, Matekalo D, Živković S, Dragićević M, Filipović B, Banjanac T, Petrović L, Mišić D. Functional Characterization of Genes Coding for Novel β-D-Glucosidases Involved in the Initial Step of Secoiridoid Glucosides Catabolism in Centaurium erythraea Rafn. FRONTIERS IN PLANT SCIENCE 2022; 13:914138. [PMID: 35812935 PMCID: PMC9260424 DOI: 10.3389/fpls.2022.914138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Secoiridoid glucosides (SGs) are monoterpenoids derived from the iridoid cyclopentane-C-pyran skeleton with β-D glucose linked at C1 position. Coordinated metabolic processes, such as biosynthesis and catabolism of SGs, ensure constitutive presence of these bitter tasting compounds in plant tissues, which plays a decisive role in the defense against pathogens and herbivores. These compounds are susceptible to hydrolysis mediated by enzymes β-glucosidases, and the resulting aglycones are subsequently directed toward different metabolic pathways in plants. Function of two β-D-glucosidases (named CeBGlu1 and CeBGlu2) from centaury (Centaurium erythraea Rafn; fam. Gentianaceae), belonging to the glycoside hydrolase 1 (GH1) family, was confirmed using in vitro assays with recombinant proteins, following their heterologous expression in E. coli and His-tag affinity purification. Although they show slightly differential substrate preference, both isoforms display high specificity toward SGs and the organ-specific distribution of transcripts was positively correlated with the content of SGs in diploid and tetraploid C. erythraea plants. Transient overexpression of CeBGlu1 and CeBGlu2 in C. erythraea leaves induced changes in metabolite profiles. The effectiveness of transgene overexpression has been altered by plant ploidy. UHPLC/DAD/(±)HESI - MS2 profiling of leaves of diploid and tetraploid C. erythraea genotypes revealed that the amounts of major SGs; sweroside, swertiamarin, and gentiopicrin was decreased in agroinfiltrated leaves, especially when CeBGlu1 and CeBGlu2 were co-expressed with transgene silencing suppressor p19. The work demonstrates that in planta metabolic engineering adopting transient overexpression of CeBGlu1 and CeBGlu2 is a suitable tool for the modulation of SGs content and glucosides/aglycones ratio, which might have substantial effects on overall phytochemistry of C. erythraea.
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Affiliation(s)
| | | | | | | | - Dragana Matekalo
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”- National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | | | | | | | | | | | - Danijela Mišić
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”- National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
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13
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Koudounas K, Guirimand G, Hoyos LFR, Carqueijeiro I, Cruz PL, Stander E, Kulagina N, Perrin J, Oudin A, Besseau S, Lanoue A, Atehortùa L, St-Pierre B, Giglioli-Guivarc'h N, Papon N, O'Connor SE, Courdavault V. Tonoplast and Peroxisome Targeting of γ-tocopherol N-methyltransferase Homologs Involved in the Synthesis of Monoterpene Indole Alkaloids. PLANT & CELL PHYSIOLOGY 2022; 63:200-216. [PMID: 35166361 DOI: 10.1093/pcp/pcab160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 10/08/2021] [Accepted: 11/02/2021] [Indexed: 06/14/2023]
Abstract
Many plant species from the Apocynaceae, Loganiaceae and Rubiaceae families evolved a specialized metabolism leading to the synthesis of a broad palette of monoterpene indole alkaloids (MIAs). These compounds are believed to constitute a cornerstone of the plant chemical arsenal but above all several MIAs display pharmacological properties that have been exploited for decades by humans to treat various diseases. It is established that MIAs are produced in planta due to complex biosynthetic pathways engaging a multitude of specialized enzymes but also a complex tissue and subcellular organization. In this context, N-methyltransferases (NMTs) represent an important family of enzymes indispensable for MIA biosynthesis but their characterization has always remained challenging. In particular, little is known about the subcellular localization of NMTs in MIA-producing plants. Here, we performed an extensive analysis on the subcellular localization of NMTs from four distinct medicinal plants but also experimentally validated that two putative NMTs from Catharanthus roseus exhibit NMT activity. Apart from providing unprecedented data regarding the targeting of these enzymes in planta, our results point out an additional layer of complexity to the subcellular organization of the MIA biosynthetic pathway by introducing tonoplast and peroxisome as new actors of the final steps of MIA biosynthesis.
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Affiliation(s)
- Konstantinos Koudounas
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 31 Av. Monge, Tours 37200, France
| | | | - Luisa Fernanda Rojas Hoyos
- Grupo de Biotransformación-Escuela de Microbiología, Universidad de Antioquia, Calle 70 No 52-21, A.A 1226, Medellín, Colombia
| | - Ines Carqueijeiro
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 31 Av. Monge, Tours 37200, France
| | - Pamela Lemos Cruz
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 31 Av. Monge, Tours 37200, France
| | - Emily Stander
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 31 Av. Monge, Tours 37200, France
| | - Natalja Kulagina
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 31 Av. Monge, Tours 37200, France
| | - Jennifer Perrin
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 31 Av. Monge, Tours 37200, France
| | - Audrey Oudin
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 31 Av. Monge, Tours 37200, France
| | - Sébastien Besseau
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 31 Av. Monge, Tours 37200, France
| | - Arnaud Lanoue
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 31 Av. Monge, Tours 37200, France
| | - Lucia Atehortùa
- Laboratorio de Biotecnología, Sede de Investigación Universitaria, Universidad de Antioquia, Medellin 50010, Colombia
| | - Benoit St-Pierre
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 31 Av. Monge, Tours 37200, France
| | | | - Nicolas Papon
- GEIHP, SFR ICAT, University of Angers, Université de Bretagne Occidentale, 4 rue de Larrey - F49933, Angers 49000, France
| | - Sarah E O'Connor
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, Jena 07745, Germany
| | - Vincent Courdavault
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 31 Av. Monge, Tours 37200, France
- Graduate School of Sciences, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
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14
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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] [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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15
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Lemos Cruz P, Kulagina N, Guirimand G, De Craene JO, Besseau S, Lanoue A, Oudin A, Giglioli-Guivarc’h N, Papon N, Clastre M, Courdavault V. Optimization of Tabersonine Methoxylation to Increase Vindoline Precursor Synthesis in Yeast Cell Factories. Molecules 2021; 26:3596. [PMID: 34208368 PMCID: PMC8231165 DOI: 10.3390/molecules26123596] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/25/2021] [Accepted: 05/28/2021] [Indexed: 11/16/2022] Open
Abstract
Plant specialized metabolites are widely used in the pharmaceutical industry, including the monoterpene indole alkaloids (MIAs) vinblastine and vincristine, which both display anticancer activity. Both compounds can be obtained through the chemical condensation of their precursors vindoline and catharanthine extracted from leaves of the Madagascar periwinkle. However, the extensive use of these molecules in chemotherapy increases precursor demand and results in recurrent shortages, explaining why the development of alternative production approaches, such microbial cell factories, is mandatory. In this context, the precursor-directed biosynthesis of vindoline from tabersonine in yeast-expressing heterologous biosynthetic genes is of particular interest but has not reached high production scales to date. To circumvent production bottlenecks, the metabolic flux was channeled towards the MIA of interest by modulating the copy number of the first two genes of the vindoline biosynthetic pathway, namely tabersonine 16-hydroxylase and tabersonine-16-O-methyltransferase. Increasing gene copies resulted in an optimized methoxylation of tabersonine and overcame the competition for tabersonine access with the third enzyme of the pathway, tabersonine 3-oxygenase, which exhibits a high substrate promiscuity. Through this approach, we successfully created a yeast strain that produces the fourth biosynthetic intermediate of vindoline without accumulation of other intermediates or undesired side-products. This optimization will probably pave the way towards the future development of yeast cell factories to produce vindoline at an industrial scale.
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Affiliation(s)
- Pamela Lemos Cruz
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37000 Tours, France; (P.L.C.); (N.K.); (G.G.); (J.-O.D.C.); (S.B.); (A.L.); (A.O.); (N.G.-G.); (M.C.)
| | - Natalja Kulagina
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37000 Tours, France; (P.L.C.); (N.K.); (G.G.); (J.-O.D.C.); (S.B.); (A.L.); (A.O.); (N.G.-G.); (M.C.)
| | - Grégory Guirimand
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37000 Tours, France; (P.L.C.); (N.K.); (G.G.); (J.-O.D.C.); (S.B.); (A.L.); (A.O.); (N.G.-G.); (M.C.)
- Graduate School of Sciences, Technology and Innovation, Kobe University, Kobe 657-8501, Japan
- Le Studium Loire Valley Institute for Advanced Studies, 45000 Orléans & Tours, France
| | - Johan-Owen De Craene
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37000 Tours, France; (P.L.C.); (N.K.); (G.G.); (J.-O.D.C.); (S.B.); (A.L.); (A.O.); (N.G.-G.); (M.C.)
| | - Sébastien Besseau
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37000 Tours, France; (P.L.C.); (N.K.); (G.G.); (J.-O.D.C.); (S.B.); (A.L.); (A.O.); (N.G.-G.); (M.C.)
| | - Arnaud Lanoue
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37000 Tours, France; (P.L.C.); (N.K.); (G.G.); (J.-O.D.C.); (S.B.); (A.L.); (A.O.); (N.G.-G.); (M.C.)
| | - Audrey Oudin
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37000 Tours, France; (P.L.C.); (N.K.); (G.G.); (J.-O.D.C.); (S.B.); (A.L.); (A.O.); (N.G.-G.); (M.C.)
| | - Nathalie Giglioli-Guivarc’h
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37000 Tours, France; (P.L.C.); (N.K.); (G.G.); (J.-O.D.C.); (S.B.); (A.L.); (A.O.); (N.G.-G.); (M.C.)
| | - Nicolas Papon
- Univ Angers, Univ Brest, GEIHP, SFR ICAT, F-49000 Angers, France;
| | - Marc Clastre
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37000 Tours, France; (P.L.C.); (N.K.); (G.G.); (J.-O.D.C.); (S.B.); (A.L.); (A.O.); (N.G.-G.); (M.C.)
| | - Vincent Courdavault
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37000 Tours, France; (P.L.C.); (N.K.); (G.G.); (J.-O.D.C.); (S.B.); (A.L.); (A.O.); (N.G.-G.); (M.C.)
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16
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Colinas M, Pollier J, Vaneechoutte D, Malat DG, Schweizer F, De Milde L, De Clercq R, Guedes JG, Martínez-Cortés T, Molina-Hidalgo FJ, Sottomayor M, Vandepoele K, Goossens A. Subfunctionalization of Paralog Transcription Factors Contributes to Regulation of Alkaloid Pathway Branch Choice in Catharanthus roseus. FRONTIERS IN PLANT SCIENCE 2021; 12:687406. [PMID: 34113373 PMCID: PMC8186833 DOI: 10.3389/fpls.2021.687406] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 04/27/2021] [Indexed: 06/12/2023]
Abstract
Catharanthus roseus produces a diverse range of specialized metabolites of the monoterpenoid indole alkaloid (MIA) class in a heavily branched pathway. Recent great progress in identification of MIA biosynthesis genes revealed that the different pathway branch genes are expressed in a highly cell type- and organ-specific and stress-dependent manner. This implies a complex control by specific transcription factors (TFs), only partly revealed today. We generated and mined a comprehensive compendium of publicly available C. roseus transcriptome data for MIA pathway branch-specific TFs. Functional analysis was performed through extensive comparative gene expression analysis and profiling of over 40 MIA metabolites in the C. roseus flower petal expression system. We identified additional members of the known BIS and ORCA regulators. Further detailed study of the ORCA TFs suggests subfunctionalization of ORCA paralogs in terms of target gene-specific regulation and synergistic activity with the central jasmonate response regulator MYC2. Moreover, we identified specific amino acid residues within the ORCA DNA-binding domains that contribute to the differential regulation of some MIA pathway branches. Our results advance our understanding of TF paralog specificity for which, despite the common occurrence of closely related paralogs in many species, comparative studies are scarce.
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Affiliation(s)
- Maite Colinas
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Jacob Pollier
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Metabolomics Core, Ghent, Belgium
| | - Dries Vaneechoutte
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Deniz G. Malat
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Fabian Schweizer
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Liesbeth De Milde
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Rebecca De Clercq
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Joana G. Guedes
- CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairaão, Portugal
- I3S-Instituto de Investigação e Inovação em Saúde, IBMC-Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- ICBAS–Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Teresa Martínez-Cortés
- CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairaão, Portugal
| | - Francisco J. Molina-Hidalgo
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Mariana Sottomayor
- CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairaão, Portugal
- Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - Klaas Vandepoele
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Alain Goossens
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
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17
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Carqueijeiro I, Koudounas K, Dugé de Bernonville T, Sepúlveda LJ, Mosquera A, Bomzan DP, Oudin A, Lanoue A, Besseau S, Lemos Cruz P, Kulagina N, Stander EA, Eymieux S, Burlaud-Gaillard J, Blanchard E, Clastre M, Atehortùa L, St-Pierre B, Giglioli-Guivarc’h N, Papon N, Nagegowda DA, O’Connor SE, Courdavault V. Alternative splicing creates a pseudo-strictosidine β-d-glucosidase modulating alkaloid synthesis in Catharanthus roseus. PLANT PHYSIOLOGY 2021; 185:836-856. [PMID: 33793899 PMCID: PMC8133614 DOI: 10.1093/plphys/kiaa075] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 11/24/2020] [Indexed: 05/08/2023]
Abstract
Deglycosylation is a key step in the activation of specialized metabolites involved in plant defense mechanisms. This reaction is notably catalyzed by β-glucosidases of the glycosyl hydrolase 1 (GH1) family such as strictosidine β-d-glucosidase (SGD) from Catharanthus roseus. SGD catalyzes the deglycosylation of strictosidine, forming a highly reactive aglycone involved in the synthesis of cytotoxic monoterpene indole alkaloids (MIAs) and in the crosslinking of aggressor proteins. By exploring C. roseus transcriptomic resources, we identified an alternative splicing event of the SGD gene leading to the formation of a shorter isoform of this enzyme (shSGD) that lacks the last 71-residues and whose transcript ratio with SGD ranges from 1.7% up to 42.8%, depending on organs and conditions. Whereas it completely lacks β-glucosidase activity, shSGD interacts with SGD and causes the disruption of SGD multimers. Such disorganization drastically inhibits SGD activity and impacts downstream MIA synthesis. In addition, shSGD disrupts the metabolic channeling of downstream biosynthetic steps by hampering the recruitment of tetrahydroalstonine synthase in cell nuclei. shSGD thus corresponds to a pseudo-enzyme acting as a regulator of MIA biosynthesis. These data shed light on a peculiar control mechanism of β-glucosidase multimerization, an organization common to many defensive GH1 members.
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Affiliation(s)
- Inês Carqueijeiro
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
| | - Konstantinos Koudounas
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
| | | | - Liuda Johana Sepúlveda
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
- Laboratorio de Biotecnología, Universidad de Antioquia, Sede de Investigación Universitaria, 50010 Medellin, Colombia
| | - Angela Mosquera
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
- Laboratorio de Biotecnología, Universidad de Antioquia, Sede de Investigación Universitaria, 50010 Medellin, Colombia
| | - Dikki Pedenla Bomzan
- Molecular Plant Biology and Biotechnology Lab, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru 560065, India
| | - Audrey Oudin
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
| | - Arnaud Lanoue
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
| | - Sébastien Besseau
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
| | - Pamela Lemos Cruz
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
| | - Natalja Kulagina
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
| | - Emily A Stander
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
| | - Sébastien Eymieux
- INSERM U1259, Plateforme IBiSA de Microscopie Electronique, Université de Tours, 37200 Tours, France
| | - Julien Burlaud-Gaillard
- INSERM U1259, Plateforme IBiSA de Microscopie Electronique, Université de Tours, 37200 Tours, France
| | - Emmanuelle Blanchard
- INSERM U1259, Plateforme IBiSA de Microscopie Electronique, Université de Tours, 37200 Tours, France
- Centre Hospitalier Régional de Tours, 37170 Tours, France
| | - Marc Clastre
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
| | - Lucia Atehortùa
- Laboratorio de Biotecnología, Universidad de Antioquia, Sede de Investigación Universitaria, 50010 Medellin, Colombia
| | - Benoit St-Pierre
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
| | | | - Nicolas Papon
- EA3142 “Groupe d'Etude des Interactions Hôte-Pathogène,” Université d’Angers, 49035 Angers, France
| | - Dinesh A Nagegowda
- Molecular Plant Biology and Biotechnology Lab, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru 560065, India
| | - Sarah E O’Connor
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, 07745 Jena, Germany
| | - Vincent Courdavault
- EA2106 “Biomolécules et Biotechnologies Végétales,” Université de Tours, 37200 Tours, France
- Author for communication:
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18
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Agtuca BJ, Stopka SA, Tuleski TR, do Amaral FP, Evans S, Liu Y, Xu D, Monteiro RA, Koppenaal DW, Paša-Tolić L, Anderton CR, Vertes A, Stacey G. In-Situ Metabolomic Analysis of Setaria viridis Roots Colonized by Beneficial Endophytic Bacteria. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2020; 33:272-283. [PMID: 31544655 DOI: 10.1094/mpmi-06-19-0174-r] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Over the past decades, crop yields have risen in parallel with increasing use of fossil fuel-derived nitrogen (N) fertilizers but with concomitant negative impacts on climate and water resources. There is a need for more sustainable agricultural practices, and biological nitrogen fixation (BNF) could be part of the solution. A variety of nitrogen-fixing, epiphytic, and endophytic plant growth-promoting bacteria (PGPB) are known to stimulate plant growth. However, compared with the rhizobium-legume symbiosis, little mechanistic information is available as to how PGPB affect plant metabolism. Therefore, we investigated the metabolic changes in roots of the model grass species Setaria viridis upon endophytic colonization by Herbaspirillum seropedicae SmR1 (fix+) or a fix- mutant strain (SmR54) compared with uninoculated roots. Endophytic colonization of the root is highly localized and, hence, analysis of whole-root segments dilutes the metabolic signature of those few cells impacted by the bacteria. Therefore, we utilized in-situ laser ablation electrospray ionization mass spectrometry to sample only those root segments at or adjacent to the sites of bacterial colonization. Metabolites involved in purine, zeatin, and riboflavin pathways were significantly more abundant in inoculated plants, while metabolites indicative of nitrogen, starch, and sucrose metabolism were reduced in roots inoculated with the fix- strain or uninoculated, presumably due to N limitation. Interestingly, compounds, involved in indole-alkaloid biosynthesis were more abundant in the roots colonized by the fix- strain, perhaps reflecting a plant defense response.
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Affiliation(s)
- Beverly J Agtuca
- Divisions of Plant Sciences and Biochemistry, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, U.S.A
| | - Sylwia A Stopka
- Department of Chemistry, The George Washington University, Washington, DC 20052, U.S.A
| | - Thalita R Tuleski
- Divisions of Plant Sciences and Biochemistry, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, U.S.A
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, CP 19046, 81.531-990 Curitiba, PR, Brazil
| | - Fernanda P do Amaral
- Divisions of Plant Sciences and Biochemistry, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, U.S.A
| | - Sterling Evans
- Divisions of Plant Sciences and Biochemistry, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, U.S.A
| | - Yang Liu
- Department of Electrical Engineering and Computer Science, Informatics Institute and Christopher S. Bond Life Sciences Center, University of Missouri Columbia
| | - Dong Xu
- Department of Electrical Engineering and Computer Science, Informatics Institute and Christopher S. Bond Life Sciences Center, University of Missouri Columbia
| | - Rose Adele Monteiro
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, CP 19046, 81.531-990 Curitiba, PR, Brazil
| | - David W Koppenaal
- Environmental Molecular Sciences Laboratory, Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99354, U.S.A
| | - Ljiljana Paša-Tolić
- Environmental Molecular Sciences Laboratory, Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99354, U.S.A
| | - Christopher R Anderton
- Environmental Molecular Sciences Laboratory, Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99354, U.S.A
| | - Akos Vertes
- Department of Chemistry, The George Washington University, Washington, DC 20052, U.S.A
| | - Gary Stacey
- Divisions of Plant Sciences and Biochemistry, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, U.S.A
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Sharma A, Verma P, Mathur A, Mathur AK. Overexpression of tryptophan decarboxylase and strictosidine synthase enhanced terpenoid indole alkaloid pathway activity and antineoplastic vinblastine biosynthesis in Catharanthus roseus. PROTOPLASMA 2018; 255:1281-1294. [PMID: 29508069 DOI: 10.1007/s00709-018-1233-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 02/26/2018] [Indexed: 05/26/2023]
Abstract
Terpenoid indole alkaloid (TIA) biosynthetic pathway of Catharanthus roseus possesses the major attention in current metabolic engineering efforts being the sole source of highly expensive antineoplastic molecules vinblastine and vincristine. The entire TIA pathway is fairly known at biochemical and genetic levels except the pathway steps leading to biosynthesis of catharanthine and tabersonine. To increase the in-planta yield of these antineoplastic metabolites for the pharmaceutical and drug industry, extensive plant tissue culture-based studies were performed to provide alternative production systems. However, the strict spatiotemporal developmental regulation of TIA biosynthesis has restricted the utility of these cultures for large-scale production. Therefore, the present study was performed to enhance the metabolic flux of TIA pathway towards the biosynthesis of vinblastine by overexpressing two upstream TIA pathway genes, tryptophan decarboxylase (CrTDC) and strictosidine synthase (CrSTR), at whole plant levels in C. roseus. Whole plant transgenic of C. roseus was developed using Agrobacterium tumefaciens LBA1119 strain having CrTDC and CrSTR gene cassette. Developed transgenic lines demonstrated up to twofold enhanced total alkaloid production with maximum ninefold increase in vindoline and catharanthine, and fivefold increased vinblastine production. These lines recorded a maximum of 38-fold and 65-fold enhanced transcript levels of CrTDC and CrSTR genes, respectively.
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Affiliation(s)
- Abhishek Sharma
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CIMAP), Council of Scientific and Industrial Research, PO CIMAP, Kukrail Picnic Spot Road, Lucknow, 226015, India
| | - Priyanka Verma
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CIMAP), Council of Scientific and Industrial Research, PO CIMAP, Kukrail Picnic Spot Road, Lucknow, 226015, India
- Division of Biochemical Sciences, National Chemical Laboratory (NCL), Council of Scientific and Industrial Research, Homi Bhabha Road, Pashan, Pune, 411008, India
| | - Archana Mathur
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CIMAP), Council of Scientific and Industrial Research, PO CIMAP, Kukrail Picnic Spot Road, Lucknow, 226015, India
| | - Ajay Kumar Mathur
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CIMAP), Council of Scientific and Industrial Research, PO CIMAP, Kukrail Picnic Spot Road, Lucknow, 226015, India.
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20
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An engineered combinatorial module of transcription factors boosts production of monoterpenoid indole alkaloids in Catharanthus roseus. Metab Eng 2018; 48:150-162. [PMID: 29852273 DOI: 10.1016/j.ymben.2018.05.016] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/24/2018] [Accepted: 05/25/2018] [Indexed: 11/21/2022]
Abstract
To fend off microbial pathogens and herbivores, plants have evolved a wide range of defense strategies such as physical barriers, or the production of anti-digestive proteins or bioactive specialized metabolites. Accumulation of the latter compounds is often regulated by transcriptional activation of the biosynthesis pathway genes by the phytohormone jasmonate-isoleucine. Here, we used our recently developed flower petal transformation method in the medicinal plant Catharanthus roseus to shed light on the complex regulatory mechanisms steering the jasmonate-modulated biosynthesis of monoterpenoid indole alkaloids (MIAs), to which the anti-cancer compounds vinblastine and vincristine belong. By combinatorial overexpression of the transcriptional activators BIS1, ORCA3 and MYC2a, we provide an unprecedented insight into the modular transcriptional control of MIA biosynthesis. Furthermore, we show that the expression of an engineered de-repressed MYC2a triggers a tremendous reprogramming of the MIA pathway, finally leading to massively increased accumulation of at least 23 MIAs. The current study unveils an innovative approach for future metabolic engineering efforts for the production of valuable bioactive plant compounds in non-model plants.
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21
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Saiman MZ, Miettinen K, Mustafa NR, Choi YH, Verpoorte R, Schulte AE. Metabolic alteration of Catharanthus roseus cell suspension cultures overexpressing geraniol synthase in the plastids or cytosol. PLANT CELL, TISSUE AND ORGAN CULTURE 2018; 134:41-53. [PMID: 31007320 PMCID: PMC6445406 DOI: 10.1007/s11240-018-1398-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 02/19/2018] [Indexed: 05/09/2023]
Abstract
Previous studies showed that geraniol could be an upstream limiting factor in the monoterpenoid pathway towards the production of terpenoid indole alkaloid (TIA) in Catharanthus roseus cells and hairy root cultures. This shortage in precursor availability could be due to (1) limited expression of the plastidial geraniol synthase resulted in a low activity of the enzyme to catalyze the conversion of geranyl diphosphate to geraniol; or (2) the limitation of geraniol transport from plastids to cytosol. Therefore, in this study, C. roseus's geraniol synthase (CrGES) gene was overexpressed in either plastids or cytosol of a non-TIA producing C. roseus cell line. The expression of CrGES in the plastids or cytosol was confirmed and the constitutive transformation lines were successfully established. A targeted metabolite analysis using HPLC shows that the transformed cell lines did not produce TIA or iridoid precursors unless elicited with jasmonic acid, as their parent cell line. This indicates a requirement for expression of additional, inducible pathway genes to reach production of TIA in this cell line. Interestingly, further analysis using NMR-based metabolomics reveals that the overexpression of CrGES impacts primary metabolism differently if expressed in the plastids or cytosol. The levels of valine, leucine, and some metabolites derived from the shikimate pathway, i.e. phenylalanine and tyrosine were significantly higher in the plastidial- but lower in the cytosolic-CrGES overexpressing cell lines. This result shows that overexpression of CrGES in the plastids or cytosol caused alteration of primary metabolism that associated to the plant cell growth and development. A comprehensive omics analysis is necessary to reveal the full effect of metabolic engineering.
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Affiliation(s)
- Mohd Zuwairi Saiman
- Institute of Biology, Leiden University, 2300 RA Leiden, The Netherlands
- Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
- Centre for Research in Biotechnology for Agriculture (CEBAR), University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Karel Miettinen
- Institute of Biology, Leiden University, 2300 RA Leiden, The Netherlands
| | - Natali Rianika Mustafa
- Institute of Biology, Leiden University, 2300 RA Leiden, The Netherlands
- ExPlant Technologies B.V., Galileiweg 8, 2333 BD Leiden, The Netherlands
| | - Young Hae Choi
- Institute of Biology, Leiden University, 2300 RA Leiden, The Netherlands
| | - Robert Verpoorte
- Institute of Biology, Leiden University, 2300 RA Leiden, The Netherlands
| | - Anna Elisabeth Schulte
- Institute of Biology, Leiden University, 2300 RA Leiden, The Netherlands
- ExPlant Technologies B.V., Galileiweg 8, 2333 BD Leiden, The Netherlands
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22
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Liu J, Cai J, Wang R, Yang S. Transcriptional Regulation and Transport of Terpenoid Indole Alkaloid in Catharanthus roseus: Exploration of New Research Directions. Int J Mol Sci 2016; 18:ijms18010053. [PMID: 28036025 PMCID: PMC5297688 DOI: 10.3390/ijms18010053] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 12/19/2016] [Accepted: 12/22/2016] [Indexed: 02/05/2023] Open
Abstract
As one of the model medicinal plants for exploration of biochemical pathways and molecular biological questions on complex metabolic pathways, Catharanthus roseus synthesizes more than 100 terpenoid indole alkaloids (TIAs) used for clinical treatment of various diseases and for new drug discovery. Given that extensive studies have revealed the major metabolic pathways and the spatial-temporal biosynthesis of TIA in C. roseus plant, little is known about subcellular and inter-cellular trafficking or long-distance transport of TIA end products or intermediates, as well as their regulation. While these transport processes are indispensable for multi-organelle, -tissue and -cell biosynthesis, storage and their functions, great efforts have been made to explore these dynamic cellular processes. Progress has been made in past decades on transcriptional regulation of TIA biosynthesis by transcription factors as either activators or repressors; recent studies also revealed several transporters involved in subcellular and inter-cellular TIA trafficking. However, many details and the regulatory network for controlling the tissue-or cell-specific biosynthesis, transport and storage of serpentine and ajmalicine in root, catharanthine in leaf and root, vindoline specifically in leaf and vinblastine and vincristine only in green leaf and their biosynthetic intermediates remain to be determined. This review is to summarize the progress made in biosynthesis, transcriptional regulation and transport of TIAs. Based on analysis of organelle, tissue and cell-type specific biosynthesis and progresses in transport and trafficking of similar natural products, the transporters that might be involved in transport of TIAs and their synthetic intermediates are discussed; according to transcriptome analysis and bioinformatic approaches, the transcription factors that might be involved in TIA biosynthesis are analyzed. Further discussion is made on a broad context of transcriptional and transport regulation in order to guide our future research.
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Affiliation(s)
- Jiaqi Liu
- College of Chinese Herbal Medicine, Jilin Agricultural University, Changchun 130047, China.
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China.
| | - Junjun Cai
- West China Hospital, Sichuan University, Chengdu 610066, China.
| | - Rui Wang
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China.
| | - Shihai Yang
- College of Chinese Herbal Medicine, Jilin Agricultural University, Changchun 130047, China.
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23
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Stavrinides A, Tatsis EC, Caputi L, Foureau E, Stevenson CEM, Lawson DM, Courdavault V, O'Connor SE. Structural investigation of heteroyohimbine alkaloid synthesis reveals active site elements that control stereoselectivity. Nat Commun 2016; 7:12116. [PMID: 27418042 PMCID: PMC4947188 DOI: 10.1038/ncomms12116] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 05/31/2016] [Indexed: 02/07/2023] Open
Abstract
Plants produce an enormous array of biologically active metabolites, often with stereochemical variations on the same molecular scaffold. These changes in stereochemistry dramatically impact biological activity. Notably, the stereoisomers of the heteroyohimbine alkaloids show diverse pharmacological activities. We reported a medium chain dehydrogenase/reductase (MDR) from Catharanthus roseus that catalyses formation of a heteroyohimbine isomer. Here we report the discovery of additional heteroyohimbine synthases (HYSs), one of which produces a mixture of diastereomers. The crystal structures for three HYSs have been solved, providing insight into the mechanism of reactivity and stereoselectivity, with mutation of one loop transforming product specificity. Localization and gene silencing experiments provide a basis for understanding the function of these enzymes in vivo. This work sets the stage to explore how MDRs evolved to generate structural and biological diversity in specialized plant metabolism and opens the possibility for metabolic engineering of new compounds based on this scaffold. The stereochemistry of the plant heteroyohimbine alkaloids is a key factor determining their diverse biological activities. Here, the authors carry out structural, localization and genetic experiments to understand the mechanism of stereoselectivity for three heteroyohimbine synthases and to identify their function in vivo.
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Affiliation(s)
- Anna Stavrinides
- The John Innes Centre, Department of Biological Chemistry, Norwich NR4 7UH, UK
| | - Evangelos C Tatsis
- The John Innes Centre, Department of Biological Chemistry, Norwich NR4 7UH, UK
| | - Lorenzo Caputi
- The John Innes Centre, Department of Biological Chemistry, Norwich NR4 7UH, UK
| | - Emilien Foureau
- Université François-Rabelais de Tours, EA2106 'Biomolécules et Biotechnologies Végétales', Tours 37200, France
| | - Clare E M Stevenson
- The John Innes Centre, Department of Biological Chemistry, Norwich NR4 7UH, UK
| | - David M Lawson
- The John Innes Centre, Department of Biological Chemistry, Norwich NR4 7UH, UK
| | - Vincent Courdavault
- Université François-Rabelais de Tours, EA2106 'Biomolécules et Biotechnologies Végétales', Tours 37200, France
| | - Sarah E O'Connor
- The John Innes Centre, Department of Biological Chemistry, Norwich NR4 7UH, UK
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24
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Munakata R, Olry A, Karamat F, Courdavault V, Sugiyama A, Date Y, Krieger C, Silie P, Foureau E, Papon N, Grosjean J, Yazaki K, Bourgaud F, Hehn A. Molecular evolution of parsnip (Pastinaca sativa) membrane-bound prenyltransferases for linear and/or angular furanocoumarin biosynthesis. THE NEW PHYTOLOGIST 2016; 211:332-44. [PMID: 26918393 DOI: 10.1111/nph.13899] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 01/13/2016] [Indexed: 05/06/2023]
Abstract
In Apiaceae, furanocoumarins (FCs) are plant defence compounds that are present as linear or angular isomers. Angular isomers appeared during plant evolution as a protective response to herbivores that are resistant to linear molecules. Isomeric biosynthesis occurs through prenylation at the C6 or C8 position of umbelliferone. Here, we report cloning and functional characterization of two different prenyltransferases, Pastinaca sativa prenyltransferase 1 and 2 (PsPT1 and PsPT2), that are involved in these crucial reactions. Both enzymes are targeted to plastids and synthesize osthenol and demethylsuberosin (DMS) using exclusively umbelliferone and dimethylallylpyrophosphate (DMAPP) as substrates. Enzymatic characterization using heterologously expressed proteins demonstrated that PsPT1 is specialized for the synthesis of the linear form, demethylsuberosin, whereas PsPT2 more efficiently catalyses the synthesis of its angular counterpart, osthenol. These results are the first example of a complementary prenyltransferase pair from a single plant species that is involved in synthesizing defensive compounds. This study also provides a better understanding of the molecular mechanisms governing the angular FC biosynthetic pathway in apiaceous plants, which involves two paralogous enzymes that share the same phylogenetic origin.
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Affiliation(s)
- Ryosuke Munakata
- Laboratory of Plant Gene Expression, Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Alexandre Olry
- Laboratoire Agronomie et Environnement, INRA UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
- Laboratoire Agronomie et Environnement, Université de Lorraine UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
| | - Fazeelat Karamat
- Laboratoire Agronomie et Environnement, INRA UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
- Laboratoire Agronomie et Environnement, Université de Lorraine UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
| | - Vincent Courdavault
- EA2106 'Biomolécules et Biotechnologies Végétales', Université François-Rabelais de Tours, Tours, France
| | - Akifumi Sugiyama
- Laboratory of Plant Gene Expression, Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yoshiaki Date
- Laboratory of Plant Gene Expression, Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Célia Krieger
- Laboratoire Agronomie et Environnement, INRA UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
- Laboratoire Agronomie et Environnement, Université de Lorraine UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
| | - Prisca Silie
- Laboratoire Agronomie et Environnement, INRA UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
- Laboratoire Agronomie et Environnement, Université de Lorraine UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
| | - Emilien Foureau
- 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
| | - Jérémy Grosjean
- Laboratoire Agronomie et Environnement, INRA UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
- Laboratoire Agronomie et Environnement, Université de Lorraine UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
| | - Kazufumi Yazaki
- Laboratory of Plant Gene Expression, Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Frédéric Bourgaud
- Laboratoire Agronomie et Environnement, INRA UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
- Laboratoire Agronomie et Environnement, Université de Lorraine UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
| | - Alain Hehn
- Laboratoire Agronomie et Environnement, INRA UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
- Laboratoire Agronomie et Environnement, Université de Lorraine UMR 1121, 2 avenue de la forêt de Haye TSA 40602 54518, Vandœuvre-lès-Nancy, France
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25
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Kellner F, Geu-Flores F, Sherden NH, Brown S, Foureau E, Courdavault V, O'Connor SE. Discovery of a P450-catalyzed step in vindoline biosynthesis: a link between the aspidosperma and eburnamine alkaloids. Chem Commun (Camb) 2016; 51:7626-8. [PMID: 25850027 DOI: 10.1039/c5cc01309g] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we report the discovery of a cytochrome P450 that is required for the biosynthesis of vindoline, a plant-derived natural product used for semi-synthesis of several anti-cancer drugs. This enzyme catalyzes the formation of an epoxide that can undergo rearrangement to yield the vincamine-eburnamine backbone, thereby providing evidence for the long-standing hypothesis that the aspidosperma- and eburnamine-type alkaloids are biosynthetically related.
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Affiliation(s)
- Franziska Kellner
- Department of Biological Chemistry, The John Innes Centre, Norwich, NR4 7UH, UK.
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26
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Affiliation(s)
- Sarah E. O'Connor
- The John Innes Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom;
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27
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Liu J, Liu Y, Pan YJ, Zu YG, Tang ZH. Determination of Alkaloids inCatharanthus roseusandVinca minorby High-Performance Liquid Chromatography–Tandem Mass Spectrometry. ANAL LETT 2015. [DOI: 10.1080/00032719.2015.1094664] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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28
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Dugé de Bernonville T, Foureau E, Parage C, Lanoue A, Clastre M, Londono MA, Oudin A, Houillé B, Papon N, Besseau S, Glévarec G, Atehortùa L, Giglioli-Guivarc'h N, St-Pierre B, De Luca V, O'Connor SE, Courdavault V. Characterization of a second secologanin synthase isoform producing both secologanin and secoxyloganin allows enhanced de novo assembly of a Catharanthus roseus transcriptome. BMC Genomics 2015; 16:619. [PMID: 26285573 PMCID: PMC4541752 DOI: 10.1186/s12864-015-1678-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 06/01/2015] [Indexed: 01/14/2023] Open
Abstract
Background Transcriptome sequencing offers a great resource for the study of non-model plants such as Catharanthus roseus, which produces valuable monoterpenoid indole alkaloids (MIAs) via a complex biosynthetic pathway whose characterization is still undergoing. Transcriptome databases dedicated to this plant were recently developed by several consortia to uncover new biosynthetic genes. However, the identification of missing steps in MIA biosynthesis based on these large datasets may be limited by the erroneous assembly of close transcripts and isoforms, even with the multiple available transcriptomes. Results Secologanin synthases (SLS) are P450 enzymes that catalyze an unusual ring-opening reaction of loganin in the biosynthesis of the MIA precursor secologanin. We report here the identification and characterization in C. roseus of a new isoform of SLS, SLS2, sharing 97 % nucleotide sequence identity with the previously characterized SLS1. We also discovered that both isoforms further oxidize secologanin into secoxyloganin. SLS2 had however a different expression profile, being the major isoform in aerial organs that constitute the main site of MIA accumulation. Unfortunately, we were unable to find a current C. roseus transcriptome database containing simultaneously well reconstructed sequences of SLS isoforms and accurate expression levels. After a pair of close mRNA encoding tabersonine 16-hydroxylase (T16H1 and T16H2), this is the second example of improperly assembled transcripts from the MIA pathway in the public transcriptome databases. To construct a more complete transcriptome resource for C. roseus, we re-processed previously published transcriptome data by combining new single assemblies. Care was particularly taken during clustering and filtering steps to remove redundant contigs but not transcripts encoding potential isoforms by monitoring quality reconstruction of MIA genes and specific SLS and T16H isoforms. The new consensus transcriptome allowed a precise estimation of abundance of SLS and T16H isoforms, similar to qPCR measurements. Conclusions The C. roseus consensus transcriptome can now be used for characterization of new genes of the MIA pathway. Furthermore, additional isoforms of genes encoding distinct MIA biosynthetic enzymes isoforms could be predicted suggesting the existence of a higher level of complexity in the synthesis of MIA, raising the question of the evolutionary events behind what seems like redundancy. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-1678-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Thomas Dugé de Bernonville
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
| | - Emilien Foureau
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
| | - Claire Parage
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
| | - Arnaud Lanoue
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
| | - Marc Clastre
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
| | - Monica Arias Londono
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France. .,Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellín, Colombia.
| | - Audrey Oudin
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
| | - Benjamin Houillé
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
| | - Nicolas Papon
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
| | - Sébastien Besseau
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
| | - Gaëlle Glévarec
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
| | - Lucia Atehortùa
- Universidad de Antioquia, Laboratorio de Biotecnología, Sede de Investigación Universitaria, Medellín, Colombia.
| | - Nathalie Giglioli-Guivarc'h
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
| | - Benoit St-Pierre
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
| | - Vincenzo De Luca
- Department of Biological Sciences, Brock University, 500 Glenridge Avenue, St Catharines, Ontario, L2S 3A1, Canada.
| | - Sarah E O'Connor
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Colney, Norwich, NR4 7UH, UK.
| | - Vincent Courdavault
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", UFR Sciences et Techniques, 37200, Tours, France.
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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: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [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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Almagro L, Fernández-Pérez F, Pedreño MA. Indole alkaloids from Catharanthus roseus: bioproduction and their effect on human health. Molecules 2015; 20:2973-3000. [PMID: 25685907 PMCID: PMC6272713 DOI: 10.3390/molecules20022973] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 01/20/2015] [Accepted: 02/04/2015] [Indexed: 12/13/2022] Open
Abstract
Catharanthus roseus is a medicinal plant belonging to the family Apocynaceae which produces terpenoid indole alkaloids (TIAs) of high medicinal importance. Indeed, a number of activities like antidiabetic, bactericide and antihypertensive are linked to C. roseus. Nevertheless, the high added value of this plant is based on its enormous pharmaceutical interest, producing more than 130 TIAs, some of which exhibit strong pharmacological activities. The most striking biological activity investigated has been the antitumour effect of dimeric alkaloids such as anhydrovinblastine, vinblastine and vincristine which are already in pre-, clinical or in use. The great pharmacological importance of these indole alkaloids, contrasts with the small amounts of them found in this plant, making their extraction a very expensive process. To overcome this problem, researches have looked for alternative sources and strategies to produce them in higher amounts. In this sense, intensive research on the biosynthesis of TIAs and the regulation of their pathways has been developed with the aim to increase by biotechnological approaches, the production of these high added value compounds. This review is focused on the different strategies which improve TIA production, and in the analysis of the beneficial effects that these compounds exert on human health.
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Affiliation(s)
- Lorena Almagro
- Department of Plant Biology, Faculty of Biology, University of Murcia, Murcia 30100, Spain.
| | | | - Maria Angeles Pedreño
- Department of Plant Biology, Faculty of Biology, University of Murcia, Murcia 30100, Spain.
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Srivastava S, Pandey R, Kumar S, Nautiyal CS. Correspondence between flowers and leaves in terpenoid indole alkaloid metabolism of the phytoplasma-infected Catharanthus roseus plants. PROTOPLASMA 2014; 251:1307-1320. [PMID: 24658891 DOI: 10.1007/s00709-014-0621-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 01/27/2014] [Indexed: 06/03/2023]
Abstract
Several plants of Catharanthus roseus cv 'leafless inflorescence (lli)' showing phenotype of phytoplasma infection were observed for symptoms of early flowering, virescence, phyllody, and apical clustering of branches. Symptomatic plants were studied for the presence/absence and identity of phytoplasma in flowers. Transcription levels of several genes involved in plants' metabolism and development, accumulation of pharmaceutically important terpenoid indole alkaloids in flowers and leaves and variation in the root-associated microbial flora were examined. The expression profile of 12 genes studied was semi-quantitatively similar in control leaves and phytoplasma-infected leaves and flowers, in agreement with the symptoms of virescence and phyllody in phytoplasma-infected plants. The flowers of phytoplasma-infected plants possessed the TIA profile of leaves and accumulated catharanthine, vindoline, and vincristine and vinblastine in higher concentrations than leaves. The roots of the infected plants displayed lower microbial diversity than those of normal plants. In conclusion, phytoplasma affected the biology of C. roseus lli plants multifariously, it reduced the differences between the metabolite accumulates of the leaves and flowers and restrict the microbial diversity of rhizosphere.
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Biosynthetic pathway of terpenoid indole alkaloids in Catharanthus roseus. Front Med 2014; 8:285-93. [DOI: 10.1007/s11684-014-0350-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 07/11/2014] [Indexed: 12/18/2022]
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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. CURRENT OPINION IN PLANT BIOLOGY 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] [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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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: 269] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [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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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 PHYSIOLOGY 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] [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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Geraniol hydroxylase and hydroxygeraniol oxidase activities of the CYP76 family of cytochrome P450 enzymes and potential for engineering the early steps of the (seco)iridoid pathway. Metab Eng 2013; 20:221-32. [DOI: 10.1016/j.ymben.2013.08.001] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 06/10/2013] [Accepted: 08/01/2013] [Indexed: 01/08/2023]
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Hemalatha RG, Pradeep T. Understanding the molecular signatures in leaves and flowers by desorption electrospray ionization mass spectrometry (DESI MS) imaging. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:7477-87. [PMID: 23848451 DOI: 10.1021/jf4011998] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The difference in size, shape, and chemical cues of leaves and flowers display the underlying genetic makeup and their interactions with the environment. The need to understand the molecular signatures of these fragile plant surfaces is illustrated with a model plant, Madagascar periwinkle (Catharanthus roseus (L.) G. Don). Flat, thin layer chromatographic imprints of leaves/petals were imaged using desorption electrospray ionization mass spectrometry (DESI MS), and the results were compared with electrospray ionization mass spectrometry (ESI MS) of their extracts. Tandem mass spectrometry with DESI and ESI, in conjunction with database records, confirmed the molecular species. This protocol has been extended to other plants. Implications of this study in identifying varietal differences, toxic metabolite production, changes in metabolites during growth, pest/pathogen attack, and natural stresses are shown with illustrations. The possibility to image subtle features like eye color of petals, leaf vacuole, leaf margin, and veins is demonstrated.
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Affiliation(s)
- R G Hemalatha
- DST Unit on Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai, India
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Carqueijeiro I, Noronha H, Duarte P, Gerós H, Sottomayor M. Vacuolar transport of the medicinal alkaloids from Catharanthus roseus is mediated by a proton-driven antiport. PLANT PHYSIOLOGY 2013; 162:1486-96. [PMID: 23686419 PMCID: PMC3707533 DOI: 10.1104/pp.113.220558] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Catharanthus roseus is one of the most studied medicinal plants due to the interest in their dimeric terpenoid indole alkaloids (TIAs) vinblastine and vincristine, which are used in cancer chemotherapy. These TIAs are produced in very low levels in the leaves of the plant from the monomeric precursors vindoline and catharanthine and, although TIA biosynthesis is reasonably well understood, much less is known about TIA membrane transport mechanisms. However, such knowledge is extremely important to understand TIA metabolic fluxes and to develop strategies aimed at increasing TIA production. In this study, the vacuolar transport mechanism of the main TIAs accumulated in C. roseus leaves, vindoline, catharanthine, and α-3',4'-anhydrovinblastine, was characterized using a tonoplast vesicle system. Vindoline uptake was ATP dependent, and this transport activity was strongly inhibited by NH4(+) and carbonyl cyanide m-chlorophenyl hydrazine and was insensitive to the ATP-binding cassette (ABC) transporter inhibitor vanadate. Spectrofluorimetry assays with a pH-sensitive fluorescent probe showed that vindoline and other TIAs indeed were able to dissipate an H(+) gradient preestablished across the tonoplast by either vacuolar H(+)-ATPase or vacuolar H(+)-pyrophosphatase. The initial rates of H(+) gradient dissipation followed Michaelis-Menten kinetics, suggesting the involvement of mediated transport, and this activity was species and alkaloid specific. Altogether, our results strongly support that TIAs are actively taken up by C. roseus mesophyll vacuoles through a specific H(+) antiport system and not by an ion-trap mechanism or ABC transporters.
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Van Moerkercke A, Fabris M, Pollier J, Baart GJE, Rombauts S, Hasnain G, Rischer H, Memelink J, Oksman-Caldentey KM, Goossens A. CathaCyc, a metabolic pathway database built from Catharanthus roseus RNA-Seq data. PLANT & CELL PHYSIOLOGY 2013; 54:673-85. [PMID: 23493402 DOI: 10.1093/pcp/pct039] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The medicinal plant Madagascar periwinkle (Catharanthus roseus) synthesizes numerous terpenoid indole alkaloids (TIAs), such as the anticancer drugs vinblastine and vincristine. The TIA pathway operates in a complex metabolic network that steers plant growth and survival. Pathway databases and metabolic networks reconstructed from 'omics' sequence data can help to discover missing enzymes, study metabolic pathway evolution and, ultimately, engineer metabolic pathways. To date, such databases have mainly been built for model plant species with sequenced genomes. Although genome sequence data are not available for most medicinal plant species, next-generation sequencing is now extensively employed to create comprehensive medicinal plant transcriptome sequence resources. Here we report on the construction of CathaCyc, a detailed metabolic pathway database, from C. roseus RNA-Seq data sets. CathaCyc (version 1.0) contains 390 pathways with 1,347 assigned enzymes and spans primary and secondary metabolism. Curation of the pathways linked with the synthesis of TIAs and triterpenoids, their primary metabolic precursors, and their elicitors, the jasmonate hormones, demonstrated that RNA-Seq resources are suitable for the construction of pathway databases. CathaCyc is accessible online (http://www.cathacyc.org) and offers a range of tools for the visualization and analysis of metabolic networks and 'omics' data. Overlay with expression data from publicly available RNA-Seq resources demonstrated that two well-characterized C. roseus terpenoid pathways, those of TIAs and triterpenoids, are subject to distinct regulation by both developmental and environmental cues. We anticipate that databases such as CathaCyc will become key to the study and exploitation of the metabolism of medicinal plants.
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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: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [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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An alternative route to cyclic terpenes by reductive cyclization in iridoid biosynthesis. Nature 2012; 492:138-42. [PMID: 23172143 DOI: 10.1038/nature11692] [Citation(s) in RCA: 224] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2012] [Accepted: 10/19/2012] [Indexed: 11/08/2022]
Abstract
The iridoids comprise a large family of distinctive bicyclic monoterpenes that possess a wide range of pharmacological activities, including anticancer, anti-inflammatory, antifungal and antibacterial activities. Additionally, certain iridoids are used as sex pheromones in agriculturally important species of aphids, a fact that has underpinned innovative and integrated pest management strategies. To harness the biotechnological potential of this natural product class, the enzymes involved in the biosynthetic pathway must be elucidated. Here we report the discovery of iridoid synthase, a plant-derived enzyme that generates the iridoid ring scaffold, as evidenced by biochemical assays, gene silencing, co-expression analysis and localization studies. In contrast to all known monoterpene cyclases, which use geranyl diphosphate as substrate and invoke a cationic intermediate, iridoid synthase uses the linear monoterpene 10-oxogeranial as substrate and probably couples an initial NAD(P)H-dependent reduction step with a subsequent cyclization step via a Diels-Alder cycloaddition or a Michael addition. Our results illustrate how a short-chain reductase was recruited as cyclase for the production of iridoids in medicinal plants. Furthermore, we highlight the prospects of using unrelated reductases to generate artificial cyclic scaffolds. Beyond the recognition of an alternative biochemical mechanism for the biosynthesis of cyclic terpenes, we anticipate that our work will enable the large-scale heterologous production of iridoids in plants and microorganisms for agricultural and pharmaceutical applications.
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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 MOLECULAR BIOLOGY 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] [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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Characterization of variation and quantitative trait loci related to terpenoid indole alkaloid yield in a recombinant inbred line mapping population of Catharanthus roseus. J Genet 2012. [DOI: 10.1007/s12041-012-0150-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Liscombe DK, O’Connor SE. A virus-induced gene silencing approach to understanding alkaloid metabolism in Catharanthus roseus. PHYTOCHEMISTRY 2011; 72:1969-77. [PMID: 21802100 PMCID: PMC3435519 DOI: 10.1016/j.phytochem.2011.07.001] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Revised: 06/13/2011] [Accepted: 07/05/2011] [Indexed: 05/02/2023]
Abstract
The anticancer agents vinblastine and vincristine are bisindole alkaloids derived from coupling vindoline and catharanthine, monoterpenoid indole alkaloids produced exclusively by the Madagascar periwinkle (Catharanthus roseus). Industrial production of vinblastine and vincristine currently relies on isolation from C. roseus leaves, a process that affords these compounds in 0.0003-0.01% yields. Metabolic engineering efforts to either improve alkaloid content or provide alternative sources of the bisindole alkaloids ultimately rely on the isolation and characterization of the genes involved. Several vindoline biosynthetic genes have been isolated, and the cellular and subcellular organization of the corresponding enzymes has been well studied. However, due to the leaf-specific localization of vindoline biosynthesis, and the lack of production of this precursor in cell suspension and hairy root cultures of C. roseus, further elucidation of this pathway demands the development of reverse genetics approaches to assay gene function in planta. The bipartite pTRV vector system is a Tobacco Rattle Virus-based virus-induced gene silencing (VIGS) platform that has provided efficient and effective means to assay gene function in diverse plant systems. A VIGS method was developed herein to investigate gene function in C. roseus plants using the pTRV vector system. The utility of this approach in understanding gene function in C. roseus leaves is demonstrated by silencing known vindoline biosynthetic genes previously characterized in vitro.
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Affiliation(s)
- David K. Liscombe
- Jack H. Skirball Center for Chemical Biology & Proteomics, The Salk Institute for Biological Studies, La Jolla, CA 92037, U.S.A
| | - Sarah E. O’Connor
- Department of Biological Chemistry, The John Innes Centre, Colney Lane, Norwich NR4 6PG, UK
- School of Chemistry, The University of East Anglia, Norwich NR4 7TJ, UK
- Corresponding author: Sarah E. O’Connor, Sarah.O’ , Department of Biological Chemistry, The John Innes Centre, Colney Lane, Norwich NR4 6PG, UK, phone: (+44) (0)1603 450 334
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