1
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Simpson JP, Kim CY, Kaur A, Weng JK, Dilkes B, Chapple C. Genome-wide association identifies a BAHD acyltransferase activity that assembles an ester of glucuronosylglycerol and phenylacetic acid. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:2169-2187. [PMID: 38558472 DOI: 10.1111/tpj.16737] [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: 11/17/2022] [Revised: 02/13/2024] [Accepted: 03/01/2024] [Indexed: 04/04/2024]
Abstract
Genome-wide association studies (GWAS) are an effective approach to identify new specialized metabolites and the genes involved in their biosynthesis and regulation. In this study, GWAS of Arabidopsis thaliana soluble leaf and stem metabolites identified alleles of an uncharacterized BAHD-family acyltransferase (AT5G57840) associated with natural variation in three structurally related metabolites. These metabolites were esters of glucuronosylglycerol, with one metabolite containing phenylacetic acid as the acyl component of the ester. Knockout and overexpression of AT5G57840 in Arabidopsis and heterologous overexpression in Nicotiana benthamiana and Escherichia coli demonstrated that it is capable of utilizing phenylacetyl-CoA as an acyl donor and glucuronosylglycerol as an acyl acceptor. We, thus, named the protein Glucuronosylglycerol Ester Synthase (GGES). Additionally, phenylacetyl glucuronosylglycerol increased in Arabidopsis CYP79A2 mutants that overproduce phenylacetic acid and was lost in knockout mutants of UDP-sulfoquinovosyl: diacylglycerol sulfoquinovosyl transferase, an enzyme required for glucuronosylglycerol biosynthesis and associated with glycerolipid metabolism under phosphate-starvation stress. GGES is a member of a well-supported clade of BAHD family acyltransferases that arose by duplication and neofunctionalized during the evolution of the Brassicales within a larger clade that includes HCT as well as enzymes that synthesize other plant-specialized metabolites. Together, this work extends our understanding of the catalytic diversity of BAHD acyltransferases and uncovers a pathway that involves contributions from both phenylalanine and lipid metabolism.
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Affiliation(s)
- Jeffrey P Simpson
- Department of Biochemistry, Purdue University, West Lafayette, Indiana, 47907, USA
- Purdue Center for Plant Biology, West Lafayette, Indiana, 47907, USA
| | - Colin Y Kim
- Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, 02142, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts, 02138, USA
| | - Amanpreet Kaur
- Department of Biochemistry, Purdue University, West Lafayette, Indiana, 47907, USA
- Purdue Center for Plant Biology, West Lafayette, Indiana, 47907, USA
| | - Jing-Ke Weng
- Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, 02142, USA
- Department of Chemistry and Chemical Biology & Department of Bioengineering, Northeastern University, Boston, Massachusetts, 02120, USA
- Institute for Plant-Human Interface, Northeastern University, Boston, Massachusetts, 02120, USA
| | - Brian Dilkes
- Department of Biochemistry, Purdue University, West Lafayette, Indiana, 47907, USA
- Purdue Center for Plant Biology, West Lafayette, Indiana, 47907, USA
| | - Clint Chapple
- Department of Biochemistry, Purdue University, West Lafayette, Indiana, 47907, USA
- Purdue Center for Plant Biology, West Lafayette, Indiana, 47907, USA
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2
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Zeng J, Liu X, Dong Z, Zhang F, Qiu F, Zhong M, Zhao T, Yang C, Zeng L, Lan X, Zhang H, Zhou J, Chen M, Tang K, Liao Z. Discovering a mitochondrion-localized BAHD acyltransferase involved in calystegine biosynthesis and engineering the production of 3β-tigloyloxytropane. Nat Commun 2024; 15:3623. [PMID: 38684703 PMCID: PMC11058270 DOI: 10.1038/s41467-024-47968-0] [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: 11/16/2023] [Accepted: 04/15/2024] [Indexed: 05/02/2024] Open
Abstract
Solanaceous plants produce tropane alkaloids (TAs) via esterification of 3α- and 3β-tropanol. Although littorine synthase is revealed to be responsible for 3α-tropanol esterification that leads to hyoscyamine biosynthesis, the genes associated with 3β-tropanol esterification are unknown. Here, we report that a BAHD acyltransferase from Atropa belladonna, 3β-tigloyloxytropane synthase (TS), catalyzes 3β-tropanol and tigloyl-CoA to form 3β-tigloyloxytropane, the key intermediate in calystegine biosynthesis and a potential drug for treating neurodegenerative disease. Unlike other cytosolic-localized BAHD acyltransferases, TS is localized to mitochondria. The catalytic mechanism of TS is revealed through molecular docking and site-directed mutagenesis. Subsequently, 3β-tigloyloxytropane is synthesized in tobacco. A bacterial CoA ligase (PcICS) is found to synthesize tigloyl-CoA, an acyl donor for 3β-tigloyloxytropane biosynthesis. By expressing TS mutant and PcICS, engineered Escherichia coli synthesizes 3β-tigloyloxytropane from tiglic acid and 3β-tropanol. This study helps to characterize the enzymology and chemodiversity of TAs and provides an approach for producing 3β-tigloyloxytropane.
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Affiliation(s)
- Junlan Zeng
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, State Key Laboratory of Resource Insects, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Xiaoqiang Liu
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, State Key Laboratory of Resource Insects, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Zhaoyue Dong
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China
| | - Fangyuan Zhang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, State Key Laboratory of Resource Insects, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Fei Qiu
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, State Key Laboratory of Resource Insects, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Mingyu Zhong
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, State Key Laboratory of Resource Insects, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Tengfei Zhao
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, State Key Laboratory of Resource Insects, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Chunxian Yang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, State Key Laboratory of Resource Insects, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Lingjiang Zeng
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, State Key Laboratory of Resource Insects, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Xiaozhong Lan
- TAAHC-SWU Medicinal Plant Joint R&D Centre, The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Xizang Characteristic Agricultural and Animal Husbandry Resources, Xizang Agricultural and Animal Husbandry College, Nyingchi, 860000, China
| | - Hongbo Zhang
- Key Laboratory of Synthetic Biology of Ministry of Agriculture and Rural Affairs, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Junhui Zhou
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Min Chen
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China
| | - Kexuan Tang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, State Key Laboratory of Resource Insects, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Fudan-SJTU-Nottingham Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhihua Liao
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, State Key Laboratory of Resource Insects, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing, 400715, China.
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3
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Oshikiri H, Li H, Manabe M, Yamamoto H, Yazaki K, Takanashi K. Comparative Analysis of Shikonin and Alkannin Acyltransferases Reveals Their Functional Conservation in Boraginaceae. PLANT & CELL PHYSIOLOGY 2024; 65:362-371. [PMID: 38181221 DOI: 10.1093/pcp/pcad158] [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: 02/07/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 01/07/2024]
Abstract
Shikonin and its enantiomer, alkannin, are bioactive naphthoquinones produced in several plants of the family Boraginaceae. The structures of these acylated derivatives, which have various short-chain acyl moieties, differ among plant species. The acylation of shikonin and alkannin in Lithospermum erythrorhizon was previously reported to be catalyzed by two enantioselective BAHD acyltransferases, shikonin O-acyltransferase (LeSAT1) and alkannin O-acyltransferase (LeAAT1). However, the mechanisms by which various shikonin and alkannin derivatives are produced in Boraginaceae plants remain to be determined. In the present study, evaluation of six Boraginaceae plants identified 23 homologs of LeSAT1 and LeAAT1, with 15 of these enzymes found to catalyze the acylation of shikonin or alkannin, utilizing acetyl-CoA, isobutyryl-CoA or isovaleryl-CoA as an acyl donor. Analyses of substrate specificities of these enzymes for both acyl donors and acyl acceptors and determination of their subcellular localization using Nicotiana benthamiana revealed a distinct functional differentiation of BAHD acyltransferases in Boraginaceae plants. Gene expression of these acyltransferases correlated with the enantiomeric ratio of produced shikonin/alkannin derivatives in L. erythrorhizon and Echium plantagineum. These enzymes showed conserved substrate specificities for acyl donors among plant species, indicating that the diversity in acyl moieties of shikonin/alkannin derivatives involved factors other than the differentiation of acyltransferases. These findings provide insight into the chemical diversification and evolutionary processes of shikonin/alkannin derivatives.
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Affiliation(s)
- Haruka Oshikiri
- Department of Biology, Faculty of Science, Shinshu University, Asahi 3-1-1, Matsumoto, Nagano, 390-8621 Japan
| | - Hao Li
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
| | - Misaki Manabe
- Department of Biology, Faculty of Science, Shinshu University, Asahi 3-1-1, Matsumoto, Nagano, 390-8621 Japan
| | - Hirobumi Yamamoto
- Department of Applied Biology, Faculty of Life Sciences, Toyo University, Izumino 1-1-1, Itakura-machi, Oru-gun, Gunma, 374-0193 Japan
| | - Kazufumi Yazaki
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
| | - Kojiro Takanashi
- Department of Biology, Faculty of Science, Shinshu University, Asahi 3-1-1, Matsumoto, Nagano, 390-8621 Japan
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4
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Ahmed J, Sajjad Y, Gatasheh MK, Ibrahim KE, Huzafa M, Khan SA, Situ C, Abbasi AM, Hassan A. Genome-wide identification of NAC transcription factors and regulation of monoterpenoid indole alkaloid biosynthesis in Catharanthus roseus. FRONTIERS IN PLANT SCIENCE 2023; 14:1286584. [PMID: 38223288 PMCID: PMC10785006 DOI: 10.3389/fpls.2023.1286584] [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: 08/31/2023] [Accepted: 12/01/2023] [Indexed: 01/16/2024]
Abstract
NAC transcription factors (TFs) are crucial to growth and defense responses in plants. Though NACs have been characterized for their role in several plants, comprehensive information regarding their role in Catharanthus roseus, a perennial ornamental plant, is lacking. Homology modelling was employed to identify and characterize NACs in C. roseus. In-vitro propagation of C. roseus plants was carried out using cell suspension and nodal culture and were elicited with two auxin-antagonists, 5-fluoro Indole Acetic Acid (5-F-IAA) and α-(phenyl ethyl-2-oxo)-Indole-Acetic-Acid (PEO-IAA) for the enhanced production of monoterpenoid indole alkaloids (MIAs) namely catharanthine, vindoline, and vinblastine. Analyses revealed the presence of 47 putative CrNAC genes in the C. roseus genome, primarily localized in the nucleus. Phylogenetic analysis categorized these CrNACs into eight clusters, demonstrating the highest synteny with corresponding genes in Camptotheca acuminata. Additionally, at least one defense or hormone-responsive cis-acting element was identified in the promoter region of all the putative CrNACs. Of the two elicitors, 5-F-IAA was effective at 200 µM to elicit a 3.07-fold increase in catharanthine, 2.76-fold in vindoline, and 2.4-fold in vinblastine production in nodal culture. While a relatively lower increase in MIAs was recorded in suspension culture. Validation of RNA-Seq by qRT-PCR showed upregulated expression of stress-related genes (CrNAC-07 and CrNAC-24), and downregulated expression of growth-related gene (CrNAC-25) in elicited nodal culture of C. roseus. Additionally, the expression of genes involved in the biosynthesis of MIAs was significantly upregulated upon elicitation. The current study provides the first report on the role of CrNACs in regulating the biosynthesis of MIAs.
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Affiliation(s)
- Jawad Ahmed
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad, Pakistan
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, Belfast, United Kingdom
| | - Yasar Sajjad
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Mansour K. Gatasheh
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Khalid Elfaki Ibrahim
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Muhammad Huzafa
- Department of Plant Sciences, Quaid-e-Azam University, Islamabad, Pakistan, Pakistan
| | - Sabaz Ali Khan
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Chen Situ
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, Belfast, United Kingdom
| | - Arshad Mehmood Abbasi
- Department of Environmental Sciences, COMSATS University, Islamabad, Abbottabad, Pakistan
| | - Amjad Hassan
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad, Pakistan
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5
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Stander EA, Lehka B, Carqueijeiro I, Cuello C, Hansson FG, Jansen HJ, Dugé De Bernonville T, Birer Williams C, Vergès V, Lezin E, Lorensen MDBB, Dang TT, Oudin A, Lanoue A, Durand M, Giglioli-Guivarc'h N, Janfelt C, Papon N, Dirks RP, O'connor SE, Jensen MK, Besseau S, Courdavault V. The Rauvolfia tetraphylla genome suggests multiple distinct biosynthetic routes for yohimbane monoterpene indole alkaloids. Commun Biol 2023; 6:1197. [PMID: 38001233 PMCID: PMC10673892 DOI: 10.1038/s42003-023-05574-8] [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: 06/20/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
Monoterpene indole alkaloids (MIAs) are a structurally diverse family of specialized metabolites mainly produced in Gentianales to cope with environmental challenges. Due to their pharmacological properties, the biosynthetic modalities of several MIA types have been elucidated but not that of the yohimbanes. Here, we combine metabolomics, proteomics, transcriptomics and genome sequencing of Rauvolfia tetraphylla with machine learning to discover the unexpected multiple actors of this natural product synthesis. We identify a medium chain dehydrogenase/reductase (MDR) that produces a mixture of four diastereomers of yohimbanes including the well-known yohimbine and rauwolscine. In addition to this multifunctional yohimbane synthase (YOS), an MDR synthesizing mainly heteroyohimbanes and the short chain dehydrogenase vitrosamine synthase also display a yohimbane synthase side activity. Lastly, we establish that the combination of geissoschizine synthase with at least three other MDRs also produces a yohimbane mixture thus shedding light on the complex mechanisms evolved for the synthesis of these plant bioactives.
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Affiliation(s)
- Emily Amor Stander
- Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France
| | - Beata Lehka
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kgs, Lyngby, Denmark
| | - Inês Carqueijeiro
- Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France
| | - Clément Cuello
- Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France
| | - Frederik G Hansson
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kgs, Lyngby, Denmark
| | - Hans J Jansen
- Future Genomics Technologies, 2333 BE, Leiden, The Netherlands
| | - Thomas Dugé De Bernonville
- Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France
- Limagrain, Centre de Recherche, Route d'Ennezat, Chappes, France
| | - Caroline Birer Williams
- Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France
| | - Valentin Vergès
- Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France
| | - Enzo Lezin
- Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France
| | | | - Thu-Thuy Dang
- Department of Chemistry, Irving K. Barber Faculty of Science, University of British Columbia, Kelowna, BC, Canada
| | - Audrey Oudin
- Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France
| | - Arnaud Lanoue
- Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France
| | - Mickael Durand
- Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France
| | | | - Christian Janfelt
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark
| | - Nicolas Papon
- Univ Angers, Univ Brest, IRF, SFR ICAT, F-49000, Angers, France
| | - Ron P Dirks
- Future Genomics Technologies, 2333 BE, Leiden, The Netherlands
| | - Sarah Ellen O'connor
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Jena, 07745, Germany.
| | - Michael Krogh Jensen
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kgs, Lyngby, Denmark.
| | - Sébastien Besseau
- Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France.
| | - Vincent Courdavault
- Biomolécules et Biotechnologies Végétales, EA2106, Université de Tours, 37200, Tours, France.
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6
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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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7
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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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8
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Williams D, Brzezinski W, Gordon H, De Luca V. Site directed mutagenesis of Catharanthus roseus (+)-vincadifformine 19-hydroxylase (CYP71BY3) results in two distinct enzymatic functions. PHYTOCHEMISTRY 2022; 201:113265. [PMID: 35660549 DOI: 10.1016/j.phytochem.2022.113265] [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: 03/23/2022] [Revised: 05/27/2022] [Accepted: 05/29/2022] [Indexed: 06/15/2023]
Abstract
The most abundant monoterpenoid indole alkaloids (MIAs) in Catharanthus roseus roots include lochnericine and (+)-echitovenine. The formation of (+)-echitovenine involves a 3-step pathway including (+)-vincadifformine-19-hydroxylase (V19H) that differentiates it from a parallel pathway involved in the formation of lochnericine, hörhammericine and its O-acetylated derivative. Homology based modeling and docking experiments in the present study show that (+) and (-) vincadifformine can occupy the V19H active site and is proven experimentally by showing that (-)-vincadifformine is a competitive inhibitor of V19H. Comparative modeling of V19H with tabersonine 3-oxidase (T3O) and tabersonine 19-hydroxylase (T19H) that accept (-)-aspidosperma MIAs identified four conserved amino acid residues in T3O and T19H that were different in the V19H binding site and were used to generate a series of single-, double-, or four-point mutations in V19H. While all mutants retained their ability to convert (+)-vincadifformine to (+)-minovincinine only the four-point mutant gained T3O activity enabling it to convert (-)-tabersonine to tabersonine 2,3-epoxide. The gain of T3O-like activity following mutagenesis without the loss of V19H activity supports the hypothesis that V19H shares a common ancestor to T3O which is involved in vindoline biosynthesis in C. roseus leaves.
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Affiliation(s)
- Danielle Williams
- Department of Biological Sciences Brock University, 1812 Sir Isaac Brock Way, St Catharines, ON, L2S 3A1, Canada.
| | - Weronika Brzezinski
- Department of Biological Sciences Brock University, 1812 Sir Isaac Brock Way, St Catharines, ON, L2S 3A1, Canada.
| | - Heather Gordon
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St Catharines, ON, L2S 3A1, Canada.
| | - Vincenzo De Luca
- Department of Biological Sciences Brock University, 1812 Sir Isaac Brock Way, St Catharines, ON, L2S 3A1, Canada.
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9
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Morey KJ, Peebles CAM. Hairy roots: An untapped potential for production of plant products. FRONTIERS IN PLANT SCIENCE 2022; 13:937095. [PMID: 35991443 PMCID: PMC9389236 DOI: 10.3389/fpls.2022.937095] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
While plants are an abundant source of valuable natural products, it is often challenging to produce those products for commercial application. Often organic synthesis is too expensive for a viable commercial product and the biosynthetic pathways are often so complex that transferring them to a microorganism is not trivial or feasible. For plants not suited to agricultural production of natural products, hairy root cultures offer an attractive option for a production platform which offers genetic and biochemical stability, fast growth, and a hormone free culture media. Advances in metabolic engineering and synthetic biology tools to engineer hairy roots along with bioreactor technology is to a point where commercial application of the technology will soon be realized. We discuss different applications of hairy roots. We also use a case study of the advancements in understanding of the terpenoid indole alkaloid pathway in Catharanthus roseus hairy roots to illustrate the advancements and challenges in pathway discovery and in pathway engineering.
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10
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Kulagina N, Méteignier LV, Papon N, O'Connor SE, Courdavault V. More than a Catharanthus plant: A multicellular and pluri-organelle alkaloid-producing factory. CURRENT OPINION IN PLANT BIOLOGY 2022; 67:102200. [PMID: 35339956 DOI: 10.1016/j.pbi.2022.102200] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/14/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
Plants represent a huge reservoir of natural products. A broad series of these compounds now find application for human health. In this respect, the monoterpene indole alkaloids (MIAs), particularly from Madagascar periwinkle, are a prominent example of plant specialized metabolites with an important therapeutic potential. However, the supply of MIA drugs has always been a challenge since the low-yield accumulation in planta. This mainly results from the complex architecture of the MIA biosynthetic pathway that involves several organs, tissue types and subcellular organelles. Here, we describe the most recent advances towards the elucidation of this pathway route as well as its spatial organization in planta. Besides allowing a better understanding of the MIA biosynthetic flux in the whole plant, such knowledge will also probably pave the way for the development of metabolic engineering strategies to sustain the MIA supply.
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Affiliation(s)
- Natalja Kulagina
- Université de Tours, EA2106 Biomolécules et Biotechnologies Végétales, Tours, France
| | | | - Nicolas Papon
- Univ Angers, Univ Brest, IRF, SFR ICAT, F-49000 Angers, France
| | - Sarah Ellen O'Connor
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Jena 07745, Germany.
| | - Vincent Courdavault
- Université de Tours, EA2106 Biomolécules et Biotechnologies Végétales, Tours, France.
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11
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Kharb A, Sharma S, Sharma A, Nirwal N, Pandey R, Bhattacharyya D, Chauhan RS. Capturing acyltransferase(s) transforming final step in the biosynthesis of a major Iridoid Glycoside, (Picroside-II) in a Himalayan Medicinal Herb, Picrorhiza kurroa. Mol Biol Rep 2022; 49:5567-5576. [PMID: 35581509 DOI: 10.1007/s11033-022-07489-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 02/02/2022] [Accepted: 04/19/2022] [Indexed: 01/14/2023]
Abstract
BACKGROUND Picrorhiza kurroa has been reported as an age-old ayurvedic hepato-protection to treat hepatic disorders due to the presence of iridoids such as picroside-II (P-II), picroside-I, and kutkoside. The acylation of catalpol and vanilloyl coenzyme A by acyltransferases (ATs) is critical step in P-II biosynthesis. Since accumulation of P-II occurs only in roots, rhizomes and stolons in comparison to leaves uprooting of this critically endangered herb has been the only source of this compound. Recently, we reported that P-II acylation likely happen in roots, while stolons serve as the vital P-II storage compartment. Therefore, developing an alternate engineered platform for P-II biosynthesis require identification of P-II specific AT/s. METHODS AND RESULTS In that direction, egg-NOG function annotated 815 ATs from de novo RNA sequencing of tissue culture based 'shoots-only' system and nursery grown shoots, roots, and stolons varying in P-II content, were cross-compared in silico to arrive at ATs sequences unique and/or common to stolons and roots. Verification for organ and accession-wise upregulation in gene expression of these ATs by qRT-PCR has shortlisted six putative 'P-II-forming' ATs. Further, six-frame translation, ab initio protein structure modelling and protein-ligand molecular docking of these ATs signified one MBOAT domain containing AT with preferential binding to the vanillic acid CoA thiol ester as well as with P-II, implying that this could be potential AT decorating final structure of P-II. CONCLUSIONS Organ-wise comparative transcriptome mining coupled with reverse transcription real time qRT-PCR and protein-ligand docking led to the identification of an acyltransferases, contributing to the final structure of P-II.
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Affiliation(s)
- Anjali Kharb
- Department of Biotechnology, School of Engineering & Applied Sciences, Bennett University, 201310, Greater Noida, Uttar Pradesh, India
| | - Shilpa Sharma
- Department of Biotechnology, School of Engineering & Applied Sciences, Bennett University, 201310, Greater Noida, Uttar Pradesh, India
| | - Ashish Sharma
- Department of Biotechnology, School of Engineering & Applied Sciences, Bennett University, 201310, Greater Noida, Uttar Pradesh, India
| | - Neeti Nirwal
- Department of Biotechnology, School of Engineering & Applied Sciences, Bennett University, 201310, Greater Noida, Uttar Pradesh, India
| | - Roma Pandey
- Department of Biotechnology, School of Engineering & Applied Sciences, Bennett University, 201310, Greater Noida, Uttar Pradesh, India
| | - Dipto Bhattacharyya
- Department of Biotechnology, School of Engineering & Applied Sciences, Bennett University, 201310, Greater Noida, Uttar Pradesh, India
| | - Rajinder Singh Chauhan
- Department of Biotechnology, School of Engineering & Applied Sciences, Bennett University, 201310, Greater Noida, Uttar Pradesh, India.
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12
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Mistry V, Darji S, Tiwari P, Sharma A. Engineering Catharanthus roseus monoterpenoid indole alkaloid pathway in yeast. Appl Microbiol Biotechnol 2022; 106:2337-2347. [PMID: 35333954 DOI: 10.1007/s00253-022-11883-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/07/2022] [Accepted: 03/12/2022] [Indexed: 11/27/2022]
Abstract
Catharanthus roseus (Madagascar periwinkle), a medicinal plant possessing high pharmacological attributes, is widely recognized for the biosynthesis of anticancer monoterpenoid indole alkaloids (MIAs) - vinblastine and vincristine. The plant is known to biosynthesize more than 130 different bioactive MIAs, highly acclaimed in traditional and modern medicinal therapies. The MIA biosynthesis is strictly regulated at developmental and spatial-temporal stages and requires a well-defined cellular and sub-cellular compartmentation for completion of the entire MIAs biosynthesis. However, due to their cytotoxic nature, the production of vinblastine and vincristine occurs in low concentrations in planta and the absence of chemical synthesis alternatives projects a huge gap in demand and supply, leading to high market price. With research investigations spanning more than four decades, plant tissue culture and metabolic engineering (ME)-based studies were attempted to explore, understand, explain, improve and enhance the MIA biosynthesis using homologous and heterologous systems. Presently, metabolic engineering and synthetic biology are the two powerful tools that are contributing majorly in elucidating MIA biosynthesis. This review concentrates mainly on the efforts made through metabolic engineering of MIAs in heterologous microbial factories. KEY POINTS: • Yeast engineering provides alternative production source of phytomolecules • Yeast engineering also helps to discover missing plant pathway enzymes and genes.
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Affiliation(s)
- Vyoma Mistry
- Metabolic Engineering Lab, C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Gopal-Vidyanagar, Maliba Campus, Surat, 394350, India
| | - Siddhi Darji
- Metabolic Engineering Lab, C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Gopal-Vidyanagar, Maliba Campus, Surat, 394350, India
| | - Pragya Tiwari
- Department of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea
| | - Abhishek Sharma
- Metabolic Engineering Lab, C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Gopal-Vidyanagar, Maliba Campus, Surat, 394350, India.
- Department of Biotechnology and Bioengineering, Institute of Advance Research, Koba Institutional Area, Gandhinagar, 382426, Gujarat, India.
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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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Zhao X, Hu X, OuYang K, Yang J, Que Q, Long J, Zhang J, Zhang T, Wang X, Gao J, Hu X, Yang S, Zhang L, Li S, Gao W, Li B, Jiang W, Nielsen E, Chen X, Peng C. Chromosome-level assembly of the Neolamarckia cadamba genome provides insights into the evolution of cadambine biosynthesis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 109:891-908. [PMID: 34807496 DOI: 10.1111/tpj.15600] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 11/01/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
Neolamarckia cadamba (Roxb.), a close relative of Coffea canephora and Ophiorrhiza pumila, is an important traditional medicine in Southeast Asia. Three major glycosidic monoterpenoid indole alkaloids (MIAs), cadambine and its derivatives 3β-isodihydrocadambine and 3β-dihydrocadambine, accumulate in the bark and leaves, and exhibit antimalarial, antiproliferative, antioxidant, anticancer and anti-inflammatory activities. Here, we report a chromosome-scale N. cadamba genome, with 744.5 Mb assembled into 22 pseudochromosomes with contig N50 and scaffold N50 of 824.14 Kb and 29.20 Mb, respectively. Comparative genomic analysis of N. cadamba with Co. canephora revealed that N. cadamba underwent a relatively recent whole-genome duplication (WGD) event after diverging from Co. canephora, which contributed to the evolution of the MIA biosynthetic pathway. We determined the key intermediates of the cadambine biosynthetic pathway and further showed that NcSTR1 catalyzed the synthesis of strictosidine in N. cadamba. A new component, epoxystrictosidine (C27H34N2O10, m/z 547.2285), was identified in the cadambine biosynthetic pathway. Combining genome-wide association study (GWAS), population analysis, multi-omics analysis and metabolic gene cluster prediction, this study will shed light on the evolution of MIA biosynthetic pathway genes. This N. cadamba reference sequence will accelerate the understanding of the evolutionary history of specific metabolic pathways and facilitate the development of tools for enhancing bioactive productivity by metabolic engineering in microbes or by molecular breeding in plants.
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Affiliation(s)
- Xiaolan Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Xiaodi Hu
- Novogene Bioinformatics Institute, Building 301, Zone A10 Jiuxianqiao North 13 Road, Chaoyang District, Beijing, 100083, China
| | - Kunxi OuYang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Jing Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
- School of Chinese Medicinal Resource, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Qingmin Que
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Jianmei Long
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Jianxia Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Tong Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Xue Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Jiayu Gao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Xinquan Hu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Shuqi Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Lisu Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Shufen Li
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Wujun Gao
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Benping Li
- Novogene Bioinformatics Institute, Building 301, Zone A10 Jiuxianqiao North 13 Road, Chaoyang District, Beijing, 100083, China
| | - Wenkai Jiang
- Novogene Bioinformatics Institute, Building 301, Zone A10 Jiuxianqiao North 13 Road, Chaoyang District, Beijing, 100083, China
| | - Erik Nielsen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, 48109, USA
| | - Xiaoyang Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Changcao Peng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
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15
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Wang H, Guo H, Wang N, Huo YX. Toward the Heterologous Biosynthesis of Plant Natural Products: Gene Discovery and Characterization. ACS Synth Biol 2021; 10:2784-2795. [PMID: 34757715 DOI: 10.1021/acssynbio.1c00315] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Plant natural products (PNPs) represent a vast and diverse group of natural products, which have wide applications such as emulsifiers in cosmetics, sweeteners in foods, and active ingredients in medicines. Large-scale production of certain PNPs (e.g., artemisinin, taxol) has been implemented by reconstruction of biosynthetic pathways in heterologous hosts. However, unknown biosynthetic pathways greatly restrict wide applications of heterologous production of PNPs of interest. With the rapid development of sequencing and multiomics analysis technologies, huge amounts of omics data, i.e., genomics, transcriptomics, and proteomics, have been deposited in public databases, which is a precious resource for identification of the unknown biosynthetic pathway of PNPs. Herein, we have enumerated the approaches which have been widely used to screen candidate genes involved in the biosynthesis of PNPs of interest. We also discuss recent developments in the characterization of putative genes and elucidation of the complete biosynthetic pathway in heterologous hosts.
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Affiliation(s)
- Huiyan Wang
- School of Life Science, Beijing Institute of Technology, No. 5 South Zhongguancun Street, 100081 Beijing, China
| | - Hao Guo
- School of Life Science, Beijing Institute of Technology, No. 5 South Zhongguancun Street, 100081 Beijing, China
| | - Ning Wang
- School of Life Science, Beijing Institute of Technology, No. 5 South Zhongguancun Street, 100081 Beijing, China
| | - Yi-Xin Huo
- School of Life Science, Beijing Institute of Technology, No. 5 South Zhongguancun Street, 100081 Beijing, China
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
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16
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Liu Y, Patra B, Singh SK, Paul P, Zhou Y, Li Y, Wang Y, Pattanaik S, Yuan L. Terpenoid indole alkaloid biosynthesis in Catharanthus roseus: effects and prospects of environmental factors in metabolic engineering. Biotechnol Lett 2021; 43:2085-2103. [PMID: 34564757 PMCID: PMC8510960 DOI: 10.1007/s10529-021-03179-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 08/28/2021] [Indexed: 11/10/2022]
Abstract
Plants synthesize a vast array of specialized metabolites that primarily contribute to their defense and survival under adverse conditions. Many of the specialized metabolites have therapeutic values as drugs. Biosynthesis of specialized metabolites is affected by environmental factors including light, temperature, drought, salinity, and nutrients, as well as pathogens and insects. These environmental factors trigger a myriad of changes in gene expression at the transcriptional and posttranscriptional levels. The dynamic changes in gene expression are mediated by several regulatory proteins that perceive and transduce the signals, leading to up- or down-regulation of the metabolic pathways. Exploring the environmental effects and related signal cascades is a strategy in metabolic engineering to produce valuable specialized metabolites. However, mechanistic studies on environmental factors affecting specialized metabolism are limited. The medicinal plant Catharanthus roseus (Madagascar periwinkle) is an important source of bioactive terpenoid indole alkaloids (TIAs), including the anticancer therapeutics vinblastine and vincristine. The emerging picture shows that various environmental factors significantly alter TIA accumulation by affecting the expression of regulatory and enzyme-encoding genes in the pathway. Compared to our understanding of the TIA pathway in response to the phytohormone jasmonate, the impacts of environmental factors on TIA biosynthesis are insufficiently studied and discussed. This review thus focuses on these aspects and discusses possible strategies for metabolic engineering of TIA biosynthesis. PURPOSE OF WORK: Catharanthus roseus is a rich source of bioactive terpenoid indole alkaloids (TIAs). The objective of this work is to present a comprehensive account of the influence of various biotic and abiotic factors on TIA biosynthesis and to discuss possible strategies to enhance TIA production through metabolic engineering.
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Affiliation(s)
- Yongliang Liu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
| | - Barunava Patra
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
| | - Sanjay Kumar Singh
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
| | - Priyanka Paul
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
| | - Yan Zhou
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
| | - Yongqing Li
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Ying Wang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Sitakanta Pattanaik
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
| | - Ling Yuan
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
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17
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Kumar A, Srivastava P, Srivastava G, Sandeep, Kumar N, Chanotiya CS, Ghosh S. BAHD acetyltransferase contributes to wound-induced biosynthesis of oleo-gum resin triterpenes in Boswellia. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 107:1403-1419. [PMID: 34165841 DOI: 10.1111/tpj.15388] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 04/13/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
Triterpenes (30-carbon isoprene compounds) represent a large and highly diverse class of natural products that play various physiological functions in plants. The triterpene biosynthetic enzymes, particularly those catalyzing the late-stage regio-selective modifications are not well characterized. The bark of select Boswellia trees, e.g., B. serrata exudes specialized oleo-gum resin in response to wounding, which is enriched with boswellic acids (BAs), a unique class of C3α-epimeric pentacyclic triterpenes with medicinal properties. The bark possesses a network of resin secretory structures comprised of vertical and horizontal resin canals, and amount of BAs in bark increases considerably in response to wounding. To investigate BA biosynthetic enzymes, we conducted tissue-specific transcriptome profiling and identified a wound-responsive BAHD acetyltransferase (BsAT1) of B. serrata catalyzing the late-stage C3α-O-acetylation reactions in the BA biosynthetic pathway. BsAT1 catalyzed C3α-O-acetylation of αBA, βBA, and 11-keto-βBA in vitro and in planta assays to produce all the major C3α-O-acetyl-BAs (3-acetyl-αBA, 3-acetyl-βBA, and 3-acetyl-11-keto-βBA) found in B. serrata bark and oleo-gum resin. BsAT1 showed strict specificity for BA scaffold, whereas it did not acetylate the more common C3β-epimeric pentacyclic triterpenes. The analysis of steady-state kinetics using various BAs revealed distinct substrate affinity and catalytic efficiency. BsAT1 transcript expression coincides with increased levels of C3α-O-acetyl-BAs in bark in response to wounding, suggesting a role of BsAT1 in wound-induced biosynthesis of C3α-O-acetyl-BAs. Overall, the results provide new insights into the biosynthesis of principal chemical constituents of Boswellia oleo-gum resin.
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Affiliation(s)
- Aashish Kumar
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
| | - Payal Srivastava
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Gaurav Srivastava
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
| | - Sandeep
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
| | - Narendra Kumar
- Plant Breeding and Genetic Resource Conservation Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
| | - Chandan S Chanotiya
- Phytochemistry Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
| | - Sumit Ghosh
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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18
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Wang L, Chen K, Zhang M, Ye M, Qiao X. Catalytic function, mechanism, and application of plant acyltransferases. Crit Rev Biotechnol 2021; 42:125-144. [PMID: 34151663 DOI: 10.1080/07388551.2021.1931015] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Acyltransferases (ATs) are important tailoring enzymes that contribute to the diversity of natural products. They catalyze the transfer of acyl groups to the skeleton, which improves the lipid solubility, stability, and pharmacological activity of natural compounds. In recent years, a number of ATs have been isolated from plants. In this review, we have summarized 141 biochemically characterized ATs during the period July 1997 to October 2020, including their function, heterologous expression systems, and catalytic mechanisms. Their catalytic performance and application potential has been further discussed.
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Affiliation(s)
- Linlin Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Kuan Chen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Meng Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Min Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xue Qiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
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19
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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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20
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Diversity in Chemical Structures and Biological Properties of Plant Alkaloids. Molecules 2021; 26:molecules26113374. [PMID: 34204857 PMCID: PMC8199754 DOI: 10.3390/molecules26113374] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/23/2021] [Accepted: 04/23/2021] [Indexed: 12/13/2022] Open
Abstract
Phytochemicals belonging to the group of alkaloids are signature specialized metabolites endowed with countless biological activities. Plants are armored with these naturally produced nitrogenous compounds to combat numerous challenging environmental stress conditions. Traditional and modern healthcare systems have harnessed the potential of these organic compounds for the treatment of many ailments. Various chemical entities (functional groups) attached to the central moiety are responsible for their diverse range of biological properties. The development of the characterization of these plant metabolites and the enzymes involved in their biosynthesis is of an utmost priority to deliver enhanced advantages in terms of biological properties and productivity. Further, the incorporation of whole/partial metabolic pathways in the heterologous system and/or the overexpression of biosynthetic steps in homologous systems have both become alternative and lucrative methods over chemical synthesis in recent times. Moreover, in-depth research on alkaloid biosynthetic pathways has revealed numerous chemical modifications that occur during alkaloidal conversions. These chemical reactions involve glycosylation, acylation, reduction, oxidation, and methylation steps, and they are usually responsible for conferring the biological activities possessed by alkaloids. In this review, we aim to discuss the alkaloidal group of plant specialized metabolites and their brief classification covering major categories. We also emphasize the diversity in the basic structures of plant alkaloids arising through enzymatically catalyzed structural modifications in certain plant species, as well as their emerging diverse biological activities. The role of alkaloids in plant defense and their mechanisms of action are also briefly discussed. Moreover, the commercial utilization of plant alkaloids in the marketplace displaying various applications has been enumerated.
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21
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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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22
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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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23
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Zeng X, Shukla V, Boger DL. Divergent Total Syntheses of (-)-Pseudocopsinine and (-)-Minovincinine. J Org Chem 2020; 85:14817-14826. [PMID: 33205969 PMCID: PMC7718306 DOI: 10.1021/acs.joc.0c02493] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Herein, the first total syntheses of (-)-pseudocopsinine (1) and (-)-minovincine (3) from a common intermediate 8 are detailed, enlisting late-stage, hydrogen atom transfer (HAT)-mediated free radical bond formations (C20-C2 and C20-OH, respectively) that are unique to their core or structure. The approach to 1 features an Fe-mediated HAT reaction of the intermediate olefin 2, effecting a transannular C20-C2 free radical cyclization of a challenging substrate with formation of a strained [2.2.1] ring system and reaction of a poor acceptor tetrasubstituted alkene with a hindered secondary free radical to form a bond and quaternary center adjacent to another quaternary center. Central to the assemblage of their underlying Aspidosperma skeleton is a powerful [4 + 2]/[3 + 2] cycloaddition cascade of 1,3,4-oxadiazole 9, which affords the stereochemically rich and highly functionalized pentacyclic intermediate 8 as a single diastereomer in one step. The work extends the divergent total synthesis of four to now six different natural product alkaloid classes by distinguishing late stage key strategic bond formations within the underlying Aspidosperma core from the common intermediate 8. Together, the work represents use of strategic bond analysis combined with the strategy of divergent synthesis to access six different natural product classes from a single intermediate.
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Affiliation(s)
- Xianhuang Zeng
- Department of Chemistry and the Skaggs Institute for Chemical Biology, the Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Vyom Shukla
- Department of Chemistry and the Skaggs Institute for Chemical Biology, the Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Dale L. Boger
- Department of Chemistry and the Skaggs Institute for Chemical Biology, the Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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24
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Stander EA, Sepúlveda LJ, Dugé de Bernonville T, Carqueijeiro I, Koudounas K, Lemos Cruz P, Besseau S, Lanoue A, Papon N, Giglioli-Guivarc’h N, Dirks R, O’Connor SE, Atehortùa L, Oudin A, Courdavault V. Identifying Genes Involved in alkaloid Biosynthesis in Vinca minor Through Transcriptomics and Gene Co-Expression Analysis. Biomolecules 2020; 10:biom10121595. [PMID: 33255314 PMCID: PMC7761029 DOI: 10.3390/biom10121595] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/19/2020] [Accepted: 11/21/2020] [Indexed: 12/19/2022] Open
Abstract
The lesser periwinkle Vinca minor accumulates numerous monoterpene indole alkaloids (MIAs) including the vasodilator vincamine. While the biosynthetic pathway of MIAs has been largely elucidated in other Apocynaceae such as Catharanthus roseus, the counterpart in V. minor remains mostly unknown, especially for reactions leading to MIAs specific to this plant. As a consequence, we generated a comprehensive V. minor transcriptome elaborated from eight distinct samples including roots, old and young leaves exposed to low or high light exposure conditions. This optimized resource exhibits an improved completeness compared to already published ones. Through homology-based searches using C. roseus genes as bait, we predicted candidate genes for all common steps of the MIA pathway as illustrated by the cloning of a tabersonine/vincadifformine 16-O-methyltransferase (Vm16OMT) isoform. The functional validation of this enzyme revealed its capacity of methylating 16-hydroxylated derivatives of tabersonine, vincadifformine and lochnericine with a Km 0.94 ± 0.06 µM for 16-hydroxytabersonine. Furthermore, by combining expression of fusions with yellow fluorescent proteins and interaction assays, we established that Vm16OMT is located in the cytosol and forms homodimers. Finally, a gene co-expression network was performed to identify candidate genes of the missing V. minor biosynthetic steps to guide MIA pathway elucidation.
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Affiliation(s)
- Emily Amor Stander
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37200 Tours, France; (E.A.S.); (L.J.S.); (T.D.d.B.); (I.C.); (K.K.); (P.L.C.); (S.B.); (A.L.); (N.G.-G.)
| | - Liuda Johana Sepúlveda
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37200 Tours, France; (E.A.S.); (L.J.S.); (T.D.d.B.); (I.C.); (K.K.); (P.L.C.); (S.B.); (A.L.); (N.G.-G.)
- Laboratorio de Biotecnología, Sede de Investigación Universitaria, Universidad de Antioquia, Antioquia Medellin 050021, Colombia;
| | - Thomas Dugé de Bernonville
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37200 Tours, France; (E.A.S.); (L.J.S.); (T.D.d.B.); (I.C.); (K.K.); (P.L.C.); (S.B.); (A.L.); (N.G.-G.)
| | - Inês Carqueijeiro
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37200 Tours, France; (E.A.S.); (L.J.S.); (T.D.d.B.); (I.C.); (K.K.); (P.L.C.); (S.B.); (A.L.); (N.G.-G.)
| | - Konstantinos Koudounas
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37200 Tours, France; (E.A.S.); (L.J.S.); (T.D.d.B.); (I.C.); (K.K.); (P.L.C.); (S.B.); (A.L.); (N.G.-G.)
| | - Pamela Lemos Cruz
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37200 Tours, France; (E.A.S.); (L.J.S.); (T.D.d.B.); (I.C.); (K.K.); (P.L.C.); (S.B.); (A.L.); (N.G.-G.)
| | - Sébastien Besseau
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37200 Tours, France; (E.A.S.); (L.J.S.); (T.D.d.B.); (I.C.); (K.K.); (P.L.C.); (S.B.); (A.L.); (N.G.-G.)
| | - Arnaud Lanoue
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37200 Tours, France; (E.A.S.); (L.J.S.); (T.D.d.B.); (I.C.); (K.K.); (P.L.C.); (S.B.); (A.L.); (N.G.-G.)
| | - Nicolas Papon
- Host-Pathogen Interaction Study Group (GEIHP, EA 3142), UNIV Angers, UNIV Brest, 49933 Angers, France;
| | - Nathalie Giglioli-Guivarc’h
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37200 Tours, France; (E.A.S.); (L.J.S.); (T.D.d.B.); (I.C.); (K.K.); (P.L.C.); (S.B.); (A.L.); (N.G.-G.)
| | - Ron Dirks
- Future Genomics Technologies, 2333 BE Leiden, The Netherlands;
| | - Sarah Ellen O’Connor
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, 07745 Jena, Germany;
| | - Lucia Atehortùa
- Laboratorio de Biotecnología, Sede de Investigación Universitaria, Universidad de Antioquia, Antioquia Medellin 050021, Colombia;
| | - Audrey Oudin
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37200 Tours, France; (E.A.S.); (L.J.S.); (T.D.d.B.); (I.C.); (K.K.); (P.L.C.); (S.B.); (A.L.); (N.G.-G.)
- Correspondence: (A.O.); (V.C.)
| | - Vincent Courdavault
- EA2106 “Biomolécules et Biotechnologies Végétales”, Université de Tours, 37200 Tours, France; (E.A.S.); (L.J.S.); (T.D.d.B.); (I.C.); (K.K.); (P.L.C.); (S.B.); (A.L.); (N.G.-G.)
- Correspondence: (A.O.); (V.C.)
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Beyond the semi-synthetic artemisinin: metabolic engineering of plant-derived anti-cancer drugs. Curr Opin Biotechnol 2020; 65:17-24. [DOI: 10.1016/j.copbio.2019.11.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 01/22/2023]
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Dugé de Bernonville T, Maury S, Delaunay A, Daviaud C, Chaparro C, Tost J, O’Connor SE, Courdavault V. Developmental Methylome of the Medicinal Plant Catharanthus roseus Unravels the Tissue-Specific Control of the Monoterpene Indole Alkaloid Pathway by DNA Methylation. Int J Mol Sci 2020; 21:E6028. [PMID: 32825765 PMCID: PMC7503379 DOI: 10.3390/ijms21176028] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/06/2020] [Accepted: 08/18/2020] [Indexed: 02/07/2023] Open
Abstract
Catharanthus roseus produces a wide spectrum of monoterpene indole alkaloids (MIAs). MIA biosynthesis requires a tightly coordinated pathway involving more than 30 enzymatic steps that are spatio-temporally and environmentally regulated so that some MIAs specifically accumulate in restricted plant parts. The first regulatory layer involves a complex network of transcription factors from the basic Helix Loop Helix (bHLH) or AP2 families. In the present manuscript, we investigated whether an additional epigenetic layer could control the organ-, developmental- and environmental-specificity of MIA accumulation. We used Whole-Genome Bisulfite Sequencing (WGBS) together with RNA-seq to identify differentially methylated and expressed genes among nine samples reflecting different plant organs and experimental conditions. Tissue specific gene expression was associated with specific methylation signatures depending on cytosine contexts and gene parts. Some genes encoding key enzymatic steps from the MIA pathway were found to be simultaneously differentially expressed and methylated in agreement with the corresponding MIA accumulation. In addition, we found that transcription factors were strikingly concerned by DNA methylation variations. Altogether, our integrative analysis supports an epigenetic regulation of specialized metabolisms in plants and more likely targeting transcription factors which in turn may control the expression of enzyme-encoding genes.
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Affiliation(s)
- Thomas Dugé de Bernonville
- Faculté des Sciences et Techniques, Université de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France;
| | - Stéphane Maury
- INRA, EA1207 USC1328 Laboratoire de Biologie des Ligneux et des Grandes Cultures, Université d’Orléans, F-45067 Orléans, France;
| | - Alain Delaunay
- INRA, EA1207 USC1328 Laboratoire de Biologie des Ligneux et des Grandes Cultures, Université d’Orléans, F-45067 Orléans, France;
| | - Christian Daviaud
- Laboratoire Epigénétique et Environnement, LEE, Centre National de Recherche en Génomique Humaine, Institut de Biologie François Jacob, F-92265 Evry, France; (C.D.); (J.T.)
| | - Cristian Chaparro
- CNRS, IFREMER, UMR5244 Interactions Hôtes-Pathogènes-Environnments, Université de Montpellier, Université de Perpignan Via Domitia, F-66860 Perpignan, France;
| | - Jörg Tost
- Laboratoire Epigénétique et Environnement, LEE, Centre National de Recherche en Génomique Humaine, Institut de Biologie François Jacob, F-92265 Evry, France; (C.D.); (J.T.)
| | - Sarah Ellen O’Connor
- Max Planck Institute for Chemical Ecology, Department of Natural Product Biosynthesis, 07745 Jena, Germany;
| | - Vincent Courdavault
- Faculté des Sciences et Techniques, Université de Tours, EA2106 Biomolécules et Biotechnologies Végétales, F-37200 Tours, France;
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Yan X, Qin X, Li W, Liang D, Qiao J, Li Y. Functional characterization and catalytic activity improvement of BAHD acyltransferase from Celastrus angulatus Maxim. PLANTA 2020; 252:6. [PMID: 32556997 DOI: 10.1007/s00425-020-03413-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 06/11/2020] [Indexed: 05/14/2023]
Abstract
A BAHD terpene alcohol acyltransferase, CaAT20, was identified from Celastrus angulatus Maxim, expressed in E. coli and functionally characterized. S405A mutant of CaAT20 increased the enzyme activity. Acylation is a diversely physiological process in the biosynthesis of plant secondary metabolites. Plant BAHD acyltransferases play an important role in the modification of volatile esters with biological activities. In this research, a BAHD acyltransferase (CaAT20) was identified from Celastrus angulatus Maxim and the function of this enzyme was characterized. CaAT20 could convert geraniol to geranyl esters by using benzoyl-CoA and acetyl-CoA as the acyl donors respectively. Furthermore, the catalytic activity of CaAT20 for benzoyl-CoA was higher than that of acetyl-CoA. Site-directed mutation of CaAT20 was carried out based on the results of molecular simulation. In vitro site-directed mutant S405A of CaAT20 increased the volume of binding cavity so as to facilitate the entry of geraniol, indicating a more efficient acylation for geraniol and benzoyl-CoA. Our research provides new insight for the catalytic functions of CaAT20.
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Affiliation(s)
- Xiaoguang Yan
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, People's Republic of China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, People's Republic of China
| | - Xiaoyu Qin
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, People's Republic of China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, People's Republic of China
| | - Weiguo Li
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, People's Republic of China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, People's Republic of China
| | - Dongmei Liang
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, People's Republic of China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, People's Republic of China
| | - Jianjun Qiao
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, People's Republic of China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, People's Republic of China
| | - Yanni Li
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China.
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, People's Republic of China.
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Singh SK, Patra B, Paul P, Liu Y, Pattanaik S, Yuan L. Revisiting the ORCA gene cluster that regulates terpenoid indole alkaloid biosynthesis in Catharanthus roseus. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 293:110408. [PMID: 32081258 DOI: 10.1016/j.plantsci.2020.110408] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/03/2020] [Accepted: 01/07/2020] [Indexed: 06/10/2023]
Abstract
Transcription factor (TF) gene clusters in plants, such as tomato, potato, petunia, tobacco, and almond, have been characterized for their roles in the biosynthesis of diverse array of specialized metabolites. In Catharanthus roseus, three AP2/ERF TFs, ORCA3, ORCA4, and ORCA5, have been shown to be present on the same genomic scaffold, forming a cluster that regulates the biosynthesis of pharmaceutically important terpenoid indole alkaloids (TIAs). Our analysis of the recently updated C. roseus genome sequence revealed that the ORCA cluster comprises two additional AP2/ERFs, the previously characterized ORCA2 and a newly identified member designated as ORCA6. Transcriptomic analysis revealed that the ORCAs are highly expressed in stems, followed by leaves, roots and flowers. Expression of ORCAs was differentially induced in response to methyl-jasmonate and ethylene treatment. In addition, ORCA6 activated the strictosidine synthase (STR) promoter in tobacco cells. Activation of the STR promoter was significantly higher when ORCA2 or ORCA6 was coexpressed with the mitogen-activated protein kinase kinase, CrMPKK1. Furthermore, transient overexpression of ORCA6 in C. roseus flower petals activated TIA pathway gene expression and TIA accumulation. The results described here advance our understanding of regulation of TIA pathway by the ORCA gene cluster and the evolution for plant ERF gene clusters.
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Affiliation(s)
- Sanjay Kumar Singh
- Department of Plant and Soil Sciences and the Kentucky Tobacco Research and Development Center, University of Kentucky, 1401 University Drive, Lexington, KY 40546 USA
| | - Barunava Patra
- Department of Plant and Soil Sciences and the Kentucky Tobacco Research and Development Center, University of Kentucky, 1401 University Drive, Lexington, KY 40546 USA
| | - Priyanka Paul
- Department of Plant and Soil Sciences and the Kentucky Tobacco Research and Development Center, University of Kentucky, 1401 University Drive, Lexington, KY 40546 USA
| | - Yongliang Liu
- Department of Plant and Soil Sciences and the Kentucky Tobacco Research and Development Center, University of Kentucky, 1401 University Drive, Lexington, KY 40546 USA; South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Sitakanta Pattanaik
- Department of Plant and Soil Sciences and the Kentucky Tobacco Research and Development Center, University of Kentucky, 1401 University Drive, Lexington, KY 40546 USA.
| | - Ling Yuan
- Department of Plant and Soil Sciences and the Kentucky Tobacco Research and Development Center, University of Kentucky, 1401 University Drive, Lexington, KY 40546 USA; South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China.
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Dugé de Bernonville T, Papon N, Clastre M, O’Connor SE, Courdavault V. Identifying Missing Biosynthesis Enzymes of Plant Natural Products. Trends Pharmacol Sci 2020; 41:142-146. [DOI: 10.1016/j.tips.2019.12.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 11/07/2019] [Accepted: 12/29/2019] [Indexed: 11/16/2022]
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Present status of Catharanthus roseus monoterpenoid indole alkaloids engineering in homo- and hetero-logous systems. Biotechnol Lett 2019; 42:11-23. [DOI: 10.1007/s10529-019-02757-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 11/07/2019] [Indexed: 10/25/2022]
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Williams D, Qu Y, Simionescu R, De Luca V. The assembly of (+)-vincadifformine- and (-)-tabersonine-derived monoterpenoid indole alkaloids in Catharanthus roseus involves separate branch pathways. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 99:626-636. [PMID: 31009114 DOI: 10.1111/tpj.14346] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 03/28/2019] [Accepted: 04/01/2019] [Indexed: 05/24/2023]
Abstract
The biological activity of monoterpenoid indole alkaloids (MIAs) has led to their use in cancer treatment and other medical applications. Their biosynthesis has involved the formation of reactive intermediates by responsible enzymes to elaborate several different chemical scaffolds. Modification of scaffolds through different substitution reactions has produced chemically diverse MIAs and related biological activities. The present study characterizes the three-step pathway involved in the formation of (+)-echitovenine, the major O-acetylated MIA of Catharanthus roseus roots, and differentiates it from a parallel pathway involved in the formation of hörhammericine. Separate hydrolases convert a common reactive MIA intermediate to aspidosperma skeletons of opposite specific rotations, that is (+)-vincadifformine and (-)-tabersonine, respectively. The formation of (+) minovincinine from (+) vincadifformine 19-hydroxylase (V19H) is catalyzed by a root-specific cytochrome P450 with high amino acid sequence similarity to the leaf-specific tabersonine-3-hydroxylase involved in vindoline biosynthesis. Similarly, O-acetylation of (+)-minovincinine to form (+) echitovenine involves minovincinine-O-acetytransferase. The substrate specificity of V19H and MAT for their respective (+)-enantiomers defines the separate enantiomer-specific pathway involved in (+)-echitovenine biosynthesis and differentiates it from a parallel (-)-enantiomer-specific pathway involved in the formation of hörhammericine from (-)-tabersonine.
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Affiliation(s)
- Danielle Williams
- Department of Biological Sciences, Brock University, 1812 Sir Isaac Brock Way, St Catharines, ON, L2S 3A1, Canada
| | - Yang Qu
- Department of Biological Sciences, Brock University, 1812 Sir Isaac Brock Way, St Catharines, ON, L2S 3A1, Canada
| | - Razvan Simionescu
- Department of Biological Sciences, Brock University, 1812 Sir Isaac Brock Way, St Catharines, ON, L2S 3A1, Canada
| | - Vincenzo De Luca
- Department of Biological Sciences, Brock University, 1812 Sir Isaac Brock Way, St Catharines, ON, L2S 3A1, Canada
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Peng H, Meyer RS, Yang T, Whitaker BD, Trouth F, Shangguan L, Huang J, Litt A, Little DP, Ke H, Jurick WM. A novel hydroxycinnamoyl transferase for synthesis of hydroxycinnamoyl spermine conjugates in plants. BMC PLANT BIOLOGY 2019; 19:261. [PMID: 31208339 PMCID: PMC6580504 DOI: 10.1186/s12870-019-1846-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 05/22/2019] [Indexed: 05/03/2023]
Abstract
BACKGROUND Hydroxycinnamoyl-spermine conjugates (HCSpm) are a class of hydroxycinnamic acid amides (HCAAs), which not only are instrumental in plant development and stress response, but also benefit human health. However, HCSpm are not commonly produced in plants, and the mechanism of their biosynthesis remains unclear. In previous investigations of phenolics in Solanum fruits related to eggplant (Solanum melongena L.), we discovered that Solanum richardii, an African wild relative of eggplant, was rich in HCSpms in fruits. RESULTS The putative spermine hydroxycinnamoyl transferase (HT) SpmHT was isolated from S. richardii and eggplant. SrSpmHT expression was high in flowers and fruit, and was associated with HCSpm accumulation in S. richardii; however, SpmHT was hardly detected in eggplant cultivars and other wild relatives. Recombinant SpmHT exclusively selected spermine as the acyl acceptor substrate, while showing donor substrate preference in the following order: caffeoyl-CoA, feruloyl-CoA, and p-coumaroyl-CoA. Molecular docking revealed that substrate binding pockets of SpmHT could properly accommodate spermine but not the shorter, more common spermidine. CONCLUSION SrSpmHT is a novel spermine hydroxycinnamoyl transferase that uses Spm exclusively as the acyl acceptor substrate to produce HCSpms. Our findings shed light on the HCSpm biosynthetic pathway that may allow an increase of health beneficial metabolites in Solanum crops via methods such as introgression or engineering HCAA metabolism.
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Affiliation(s)
- Hui Peng
- Food Quality Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service of U.S. Department of Agriculture, Beltsville, MD 20705 USA
- The Genome Center and Department of Plant Sciences, University of California, Davis, CA 95616 USA
| | - Rachel S. Meyer
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA 90095 USA
| | - Tianbao Yang
- Food Quality Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service of U.S. Department of Agriculture, Beltsville, MD 20705 USA
| | - Bruce D. Whitaker
- Food Quality Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service of U.S. Department of Agriculture, Beltsville, MD 20705 USA
| | - Frances Trouth
- Food Quality Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service of U.S. Department of Agriculture, Beltsville, MD 20705 USA
| | - Lingfei Shangguan
- Food Quality Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service of U.S. Department of Agriculture, Beltsville, MD 20705 USA
- College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 Jiangsu China
| | - Jingbing Huang
- College of Food Science and Engineering, Huazhong Agricultural University, Wuhan, 430070 Hubei China
| | - Amy Litt
- College of Natural and Agricultural Sciences, University of California, Riverside, CA 92521 USA
| | - Damon P. Little
- Cullman Program for Molecular Systematics, New York Botanical Garden, 2900 Southern Boulevard, Bronx, New York, NY 10458 USA
| | - Hengming Ke
- Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Wayne M. Jurick
- Food Quality Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service of U.S. Department of Agriculture, Beltsville, MD 20705 USA
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Kidd T, Easson ML, Qu Y, De Luca V. Inter-organ transport of secologanin allows assembly of monoterpenoid indole alkaloids in a Catharanthus roseus mutant. PHYTOCHEMISTRY 2019; 159:119-126. [PMID: 30611871 DOI: 10.1016/j.phytochem.2018.12.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 12/10/2018] [Accepted: 12/24/2018] [Indexed: 06/09/2023]
Abstract
The medicinal value of the monoterpenoid indole alkaloids (MIAs) such as 3',4'-anhydrovinblastine, as well as their chemical complexity have stimulated extensive efforts to understand the biochemical and molecular pathways involved in their biosynthesis in plants such as Catharanthus roseus, Rawvolfia serpentina and others. Ethyl methane sulphonate (EMS) mutagenesis has been used successfully together with simple MIA thin layer chromatography screening to identify C. roseus mutants with altered MIA profiles. This study describes the isolation of very low iridoid and MIA containing C. roseus mutant (M2-1582) that accumulates MIAs when the plant is provided with secologanin by feeding mutant roots or by grafting the mutant scion onto wild type roots. The observed low iridoid and MIA content was correlated with lowered expression of BIS1/BIS2 transcription factors and several genes involved in secologanin biosynthesis that are expressed in internal phloem parenchyma cells of leaves. When exogenous secologanin was applied to the roots of the mutant plant, secologanin levels rose more than 13-fold, while two major MIAs catharanthine and vindoline rose more than 8- and 4- fold, respectively. Grafting the mutant on WT stocks led to 27-, 11- and 27-fold increases in secologanin, catharanthine and vindoline, respectively in leaves of the scion one week after graft initiation. Other minor MIAs (serpentine, anhydrovinblastine, vindolidine, deacetylvindoline, tabersonine and 16-methoxytabersonine) that were not detected in the mutant, became detectable in leaves of the scion. These results provide strong evidence for a secologanin transport mechanism that mobilizes this iridoid between different plant organs in C. roseus and that secologanin transport to the mutant across the graft union permits the formation of MIAs in leaves of the mutant.
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Affiliation(s)
- Trevor Kidd
- Department of Biological Sciences, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, L2S 3A1, Canada.
| | - Michael Lae Easson
- Department of Biological Sciences, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, L2S 3A1, Canada.
| | - Yang Qu
- Department of Biological Sciences, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, L2S 3A1, Canada.
| | - Vincenzo De Luca
- Department of Biological Sciences, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, L2S 3A1, Canada.
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Sui X, Singh SK, Patra B, Schluttenhofer C, Guo W, Pattanaik S, Yuan L. Cross-family transcription factor interaction between MYC2 and GBFs modulates terpenoid indole alkaloid biosynthesis. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:4267-4281. [PMID: 29931167 DOI: 10.1093/jxb/ery229] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 06/12/2018] [Indexed: 05/24/2023]
Abstract
Biosynthesis of medicinally valuable terpenoid indole alkaloids (TIAs) in Catharanthus roseus is regulated by transcriptional activators such as the basic helix-loop-helix factor CrMYC2. However, the transactivation effects are often buffered by repressors, such as the bZIP factors CrGBF1 and CrGBF2, possibly to fine-tune the accumulation of cytotoxic TIAs. Questions remain as to whether and how these factors interact to modulate TIA production. We demonstrated that overexpression of CrMYC2 induces CrGBF expression and results in reduced alkaloid accumulation in C. roseus hairy roots. We found that CrGBF1 and CrGBF2 form homo- and heterodimers to repress the transcriptional activities of key TIA pathway gene promoters. We showed that CrGBFs dimerize with CrMYC2, and CrGBF1 binds to the same cis-elements (T/G-box) as CrMYC2 in the target gene promoters. Our findings suggest that CrGBFs antagonize CrMYC2 transactivation possibly by competitive binding to the T/G-box in the target promoters and/or protein-protein interaction that forms a non-DNA binding complex that prevents CrMYC2 from binding to its target promoters. Homo- and heterodimer formation allows fine-tuning of the amplitude of TIA gene expression. Our findings reveal a previously undescribed regulatory mechanism that governs the TIA pathway genes to balance metabolic flux for TIA production in C. roseus.
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Affiliation(s)
- Xueyi Sui
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, USA
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, China
| | - Sanjay Kumar Singh
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, USA
| | - Barunava Patra
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, USA
| | - Craig Schluttenhofer
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, USA
| | - Wen Guo
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, China
| | - Sitakanta Pattanaik
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, USA
| | - Ling Yuan
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, USA
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
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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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Caputi L, Franke J, Farrow SC, Chung K, Payne RME, Nguyen TD, Dang TTT, Soares Teto Carqueijeiro I, Koudounas K, Dugé de Bernonville T, Ameyaw B, Jones DM, Vieira IJC, Courdavault V, O'Connor SE. Missing enzymes in the biosynthesis of the anticancer drug vinblastine in Madagascar periwinkle. Science 2018; 360:1235-1239. [PMID: 29724909 DOI: 10.1126/science.aat4100] [Citation(s) in RCA: 211] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 04/24/2018] [Indexed: 12/25/2022]
Abstract
Vinblastine, a potent anticancer drug, is produced by Catharanthus roseus (Madagascar periwinkle) in small quantities, and heterologous reconstitution of vinblastine biosynthesis could provide an additional source of this drug. However, the chemistry underlying vinblastine synthesis makes identification of the biosynthetic genes challenging. Here we identify the two missing enzymes necessary for vinblastine biosynthesis in this plant: an oxidase and a reductase that isomerize stemmadenine acetate into dihydroprecondylocarpine acetate, which is then deacetoxylated and cyclized to either catharanthine or tabersonine via two hydrolases characterized herein. The pathways show how plants create chemical diversity and also enable development of heterologous platforms for generation of stemmadenine-derived bioactive compounds.
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Affiliation(s)
- Lorenzo Caputi
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Jakob Franke
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Scott C Farrow
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Khoa Chung
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Richard M E Payne
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Trinh-Don Nguyen
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Thu-Thuy T Dang
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | | | - Konstantinos Koudounas
- Université de Tours, EA2106 Biomolécules et Biotechnologies Végétales, Parc de Grandmont 37200 Tours, France
| | - Thomas Dugé de Bernonville
- Université de Tours, EA2106 Biomolécules et Biotechnologies Végétales, Parc de Grandmont 37200 Tours, France
| | - Belinda Ameyaw
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - D Marc Jones
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | | | - Vincent Courdavault
- Université de Tours, EA2106 Biomolécules et Biotechnologies Végétales, Parc de Grandmont 37200 Tours, France.
| | - Sarah E O'Connor
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK.
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