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Yadav P, Mohapatra S, Jaiswal PO, Dokka N, Tyagi S, Sreevathsa R, Shasany AK. Characterization of a novel cytosolic sesquiterpene synthase MpTPS4 from Mentha ×piperita as a bioresource for the enrichment of invaluable viridiflorol in mentha essential oil. Int J Biol Macromol 2024; 277:134214. [PMID: 39069055 DOI: 10.1016/j.ijbiomac.2024.134214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/24/2024] [Accepted: 07/25/2024] [Indexed: 07/30/2024]
Abstract
Our research addresses the challenge of low concentrations of viridiflorol, a unique and highly valuable sesquiterpene found in various Mentha species. We employed biotechnological strategies to enhance viridiflorol production, which could significantly boost export revenue. Mentha piperita L. sesquiterpene synthase (MpTPS4) was the focus of our study because it is a key enzyme in the biosynthesis of viridiflorol. Through biochemical characterization, we confirmed that MpTPS4 exclusively synthesizes viridiflorol. By overexpressing MpTPS4 in M. ×piperita L. using a glandular trichome-specific promoter, we achieved a notable increase (9-25 %) in viridiflorol content. Additionally, we explored the practical application of viridiflorol as a deterrent against the herbivore Helicoverpa armigera. The RNAi-mediated knockdown of MpTPS4 resulted in a significant reduction in viridiflorol levels in the essential oil. More importantly, these results show how relevant MpTPS4 is for making viridiflorol and how biotechnology could be used to increase biosynthesis. Our research provides valuable insights into enhancing the production of this commercially important sesquiterpene, offering promising opportunities for the mentha industry.
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Affiliation(s)
- Pallavi Yadav
- Plant Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow 226015, UP, India
| | - Soumyajit Mohapatra
- Plant Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow 226015, UP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Priyanka O Jaiswal
- Plant Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow 226015, UP, India
| | - Narasimham Dokka
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India
| | - Shaily Tyagi
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India
| | - Rohini Sreevathsa
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India.
| | - Ajit Kumar Shasany
- Plant Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow 226015, UP, India; CSIR-National Botanical Research Institute, Lucknow 226001, UP, India.
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Bergman ME, Kortbeek RWJ, Gutensohn M, Dudareva N. Plant terpenoid biosynthetic network and its multiple layers of regulation. Prog Lipid Res 2024; 95:101287. [PMID: 38906423 DOI: 10.1016/j.plipres.2024.101287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/13/2024] [Accepted: 06/17/2024] [Indexed: 06/23/2024]
Abstract
Terpenoids constitute one of the largest and most chemically diverse classes of primary and secondary metabolites in nature with an exceptional breadth of functional roles in plants. Biosynthesis of all terpenoids begins with the universal five‑carbon building blocks, isopentenyl diphosphate (IPP) and its allylic isomer dimethylallyl diphosphate (DMAPP), which in plants are derived from two compartmentally separated but metabolically crosstalking routes, the mevalonic acid (MVA) and methylerythritol phosphate (MEP) pathways. Here, we review the current knowledge on the terpenoid precursor pathways and highlight the critical hidden constraints as well as multiple regulatory mechanisms that coordinate and homeostatically govern carbon flux through the terpenoid biosynthetic network in plants.
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Affiliation(s)
- Matthew E Bergman
- Department of Biochemistry, Purdue University, West Lafayette, IN, United States; Purdue Center for Plant Biology, Purdue University, West Lafayette, IN, United States
| | - Ruy W J Kortbeek
- Department of Biochemistry, Purdue University, West Lafayette, IN, United States; Purdue Center for Plant Biology, Purdue University, West Lafayette, IN, United States
| | - Michael Gutensohn
- Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV, United States
| | - Natalia Dudareva
- Department of Biochemistry, Purdue University, West Lafayette, IN, United States; Purdue Center for Plant Biology, Purdue University, West Lafayette, IN, United States; Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, United States.
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3
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Kumar V, Nadarajan S, Boddupally D, Wang R, Bar E, Davidovich-Rikanati R, Doron-Faigenboim A, Alkan N, Lewinsohn E, Elad Y, Oren-Shamir M. Phenylalanine treatment induces tomato resistance to Tuta absoluta via increased accumulation of benzenoid/phenylpropanoid volatiles serving as defense signals. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:84-99. [PMID: 38578218 DOI: 10.1111/tpj.16745] [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: 04/13/2023] [Revised: 03/04/2024] [Accepted: 03/19/2024] [Indexed: 04/06/2024]
Abstract
Tuta absoluta ("leafminer"), is a major pest of tomato crops worldwide. Controlling this insect is difficult due to its efficient infestation, rapid proliferation, and resilience to changing weather conditions. Furthermore, chemical pesticides have only a short-term effect due to rapid development of T. absoluta strains. Here, we show that a variety of tomato cultivars, treated with external phenylalanine solutions exhibit high resistance to T. absoluta, under both greenhouse and open field conditions, at different locations. A large-scale metabolomic study revealed that tomato leaves absorb and metabolize externally given Phe efficiently, resulting in a change in their volatile profile, and repellence of T. absoluta moths. The change in the volatile profile is due to an increase in three phenylalanine-derived benzenoid phenylpropanoid volatiles (BPVs), benzaldehyde, phenylacetaldehyde, and 2-phenylethanol. This treatment had no effect on terpenes and green leaf volatiles, known to contribute to the fight against insects. Phe-treated plants also increased the resistance of neighboring non-treated plants. RNAseq analysis of the neighboring non-treated plants revealed an exclusive upregulation of genes, with enrichment of genes related to the plant immune response system. Exposure of tomato plants to either benzaldehyde, phenylacetaldehyde, or 2-phenylethanol, resulted in induction of genes related to the plant immune system that were also induced due to neighboring Phe-treated plants. We suggest a novel role of phenylalanine-derived BPVs as mediators of plant-insect interactions, acting as inducers of the plant defense mechanisms.
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Affiliation(s)
- Varun Kumar
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
- Center for Life Sciences, Mahindra University, Hyderabad, Telangana, 500043, India
| | - Stalin Nadarajan
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Dayakar Boddupally
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Ru Wang
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Einat Bar
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, The Volcani Center, Ramat Yishay, 30095, Israel
| | - Rachel Davidovich-Rikanati
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, The Volcani Center, Ramat Yishay, 30095, Israel
| | - Adi Doron-Faigenboim
- Department of Vegetable and Field Crops, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Noam Alkan
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Efraim Lewinsohn
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, The Volcani Center, Ramat Yishay, 30095, Israel
| | - Yigal Elad
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Michal Oren-Shamir
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
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Ladd SN, Daber LE, Bamberger I, Kübert A, Kreuzwieser J, Purser G, Ingrisch J, Deleeuw J, van Haren J, Meredith LK, Werner C. Leaf-level metabolic changes in response to drought affect daytime CO2 emission and isoprenoid synthesis pathways. TREE PHYSIOLOGY 2023; 43:1917-1932. [PMID: 37552065 PMCID: PMC10643046 DOI: 10.1093/treephys/tpad094] [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: 03/21/2023] [Revised: 06/28/2023] [Accepted: 07/31/2023] [Indexed: 08/09/2023]
Abstract
In the near future, climate change will cause enhanced frequency and/or severity of droughts in terrestrial ecosystems, including tropical forests. Drought responses by tropical trees may affect their carbon use, including production of volatile organic compounds (VOCs), with implications for carbon cycling and atmospheric chemistry that are challenging to predict. It remains unclear how metabolic adjustments by mature tropical trees in response to drought will affect their carbon fluxes associated with daytime CO2 production and VOC emission. To address this gap, we used position-specific 13C-pyruvate labeling to investigate leaf CO2 and VOC fluxes from four tropical species before and during a controlled drought in the enclosed rainforest of Biosphere 2 (B2). Overall, plants that were more drought-sensitive had greater reductions in daytime CO2 production. Although daytime CO2 production was always dominated by non-mitochondrial processes, the relative contribution of CO2 from the tricarboxylic acid cycle tended to increase under drought. A notable exception was the legume tree Clitoria fairchildiana R.A. Howard, which had less anabolic CO2 production than the other species even under pre-drought conditions, perhaps due to more efficient refixation of CO2 and anaplerotic use for amino acid synthesis. The C. fairchildiana was also the only species to allocate detectable amounts of 13C label to VOCs and was a major source of VOCs in B2. In C. fairchildiana leaves, our data indicate that intermediates from the mevalonic acid (MVA) pathway are used to produce the volatile monoterpene trans-β-ocimene, but not isoprene. This apparent crosstalk between the MVA and methylerythritol phosphate pathways for monoterpene synthesis declined with drought. Finally, although trans-β-ocimene emissions increased under drought, it was increasingly sourced from stored intermediates and not de novo synthesis. Unique metabolic responses of legumes may play a disproportionate role in the overall changes in daytime CO2 and VOC fluxes in tropical forests experiencing drought.
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Affiliation(s)
- S Nemiah Ladd
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
- Department of Environmental Sciences, University of Basel, Bernoullistrasse 30, Basel 4056, Switzerland
| | - L Erik Daber
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
| | - Ines Bamberger
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
- Atmospheric Chemistry Group, University of Bayreuth (BayCEER), Dr–Hans–Frisch–Straße 1–3, Bayreuth 95448, Germany
| | - Angelika Kübert
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
- Institute for Atmospheric and Earth System Research, University of Helsinki, Pietari Kalmin katu 5, Helsinki 00014, Finland
| | - Jürgen Kreuzwieser
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
| | - Gemma Purser
- School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, UK
- UK Centre for Ecology & Hydrology, Bush Estate, Penicuik EH26 0QB, UK
| | - Johannes Ingrisch
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
- Department of Ecology, University of Innsbruck, Sternwartestrasse 15, Innsbruck 6020, Austria
| | - Jason Deleeuw
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
| | - Joost van Haren
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
- Honors College, University of Arizona, 1101 E. Mabel Street, Tucson, AZ 85719, USA
| | - Laura K Meredith
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
- School of Natural Resources and the Environment, University of Arizona, 1064 E. Lowell St., Tucson, AZ, 85721, USA
| | - Christiane Werner
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
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Conart C, Bomzan DP, Huang XQ, Bassard JE, Paramita SN, Saint-Marcoux D, Rius-Bony A, Hivert G, Anchisi A, Schaller H, Hamama L, Magnard JL, Lipko A, Swiezewska E, Jame P, Riveill G, Hibrand-Saint Oyant L, Rohmer M, Lewinsohn E, Dudareva N, Baudino S, Caissard JC, Boachon B. A cytosolic bifunctional geranyl/farnesyl diphosphate synthase provides MVA-derived GPP for geraniol biosynthesis in rose flowers. Proc Natl Acad Sci U S A 2023; 120:e2221440120. [PMID: 37126706 PMCID: PMC10175749 DOI: 10.1073/pnas.2221440120] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/30/2023] [Indexed: 05/03/2023] Open
Abstract
Geraniol derived from essential oils of various plant species is widely used in the cosmetic and perfume industries. It is also an essential trait of the pleasant smell of rose flowers. In contrast to other monoterpenes which are produced in plastids via the methyl erythritol phosphate pathway, geraniol biosynthesis in roses relies on cytosolic NUDX1 hydrolase which dephosphorylates geranyl diphosphate (GPP). However, the metabolic origin of cytosolic GPP remains unknown. By feeding Rosa chinensis "Old Blush" flowers with pathway-specific precursors and inhibitors, combined with metabolic profiling and functional characterization of enzymes in vitro and in planta, we show that geraniol is synthesized through the cytosolic mevalonate (MVA) pathway by a bifunctional geranyl/farnesyl diphosphate synthase, RcG/FPPS1, producing both GPP and farnesyl diphosphate (FPP). The downregulation and overexpression of RcG/FPPS1 in rose petals affected not only geraniol and germacrene D emissions but also dihydro-β-ionol, the latter due to metabolic cross talk of RcG/FPPS1-dependent isoprenoid intermediates trafficking from the cytosol to plastids. Phylogenetic analysis together with functional characterization of G/FPPS orthologs revealed that the G/FPPS activity is conserved among Rosaceae species. Site-directed mutagenesis and molecular dynamic simulations enabled to identify two conserved amino acids that evolved from ancestral FPPSs and contribute to GPP/FPP product specificity. Overall, this study elucidates the origin of the cytosolic GPP for NUDX1-dependent geraniol production, provides insights into the emergence of the RcG/FPPS1 GPPS activity from the ancestral FPPSs, and shows that RcG/FPPS1 plays a key role in the biosynthesis of volatile terpenoid compounds in rose flowers.
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Affiliation(s)
- Corentin Conart
- Université Jean Monnet Saint-Etienne, Centre National de la Recherche Scientifique, Laboratoire de Biotechnologies Végétales appliquées aux Plantes Aromatiques et Médicinales, Unité Mixte de Recherche 5079, Saint-EtienneF-42023, France
| | - Dikki Pedenla Bomzan
- Université Jean Monnet Saint-Etienne, Centre National de la Recherche Scientifique, Laboratoire de Biotechnologies Végétales appliquées aux Plantes Aromatiques et Médicinales, Unité Mixte de Recherche 5079, Saint-EtienneF-42023, France
| | - Xing-Qi Huang
- Department of Biochemistry, Purdue University, West Lafayette, IN47907-2063
| | - Jean-Etienne Bassard
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, Unité Propre de Recherche 2357, Université de Strasbourg, Strasbourg67084, France
| | - Saretta N. Paramita
- Université Jean Monnet Saint-Etienne, Centre National de la Recherche Scientifique, Laboratoire de Biotechnologies Végétales appliquées aux Plantes Aromatiques et Médicinales, Unité Mixte de Recherche 5079, Saint-EtienneF-42023, France
| | - Denis Saint-Marcoux
- Université Jean Monnet Saint-Etienne, Centre National de la Recherche Scientifique, Laboratoire de Biotechnologies Végétales appliquées aux Plantes Aromatiques et Médicinales, Unité Mixte de Recherche 5079, Saint-EtienneF-42023, France
| | - Aurélie Rius-Bony
- Université Jean Monnet Saint-Etienne, Centre National de la Recherche Scientifique, Laboratoire de Biotechnologies Végétales appliquées aux Plantes Aromatiques et Médicinales, Unité Mixte de Recherche 5079, Saint-EtienneF-42023, France
| | - Gal Hivert
- Department of Vegetable Crops, Newe Ya’ar Research Center, Agricultural Research organization, The Volcani Center, Ramat Yishay30095, Israel
- Department of Vegetable Crops, The Robert Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot76100001, Israel
| | - Anthony Anchisi
- Université de Lyon, Centre National de la Recherche Scientifique, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, UMR 5280, VilleurbanneF-69100, France
| | - Hubert Schaller
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, Unité Propre de Recherche 2357, Université de Strasbourg, Strasbourg67084, France
| | - Latifa Hamama
- Université d'Angers, Institut Agro, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Institut de Recherche en Horticulture et Semences, Structure Fédérative de Recherche Qualité et Santé du Végétal, Angers49000, France
| | - Jean-Louis Magnard
- Université Jean Monnet Saint-Etienne, Centre National de la Recherche Scientifique, Laboratoire de Biotechnologies Végétales appliquées aux Plantes Aromatiques et Médicinales, Unité Mixte de Recherche 5079, Saint-EtienneF-42023, France
| | - Agata Lipko
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw02-109Poland
| | - Ewa Swiezewska
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw02-106Poland
| | - Patrick Jame
- Université de Lyon, Centre National de la Recherche Scientifique, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, UMR 5280, VilleurbanneF-69100, France
| | - Geneviève Riveill
- Université de Strasbourg, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Unité Mixte de Recherche 1131 Santé de la Vigne et Qualité du Vin,F-68000Colmar, France
| | - Laurence Hibrand-Saint Oyant
- Université d'Angers, Institut Agro, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, Institut de Recherche en Horticulture et Semences, Structure Fédérative de Recherche Qualité et Santé du Végétal, Angers49000, France
| | - Michel Rohmer
- Institut de Chimie de Strasbourg, Université de Strasbourg/Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7177, Institut Le Bel, Strasbourg67081, France
| | - Efraim Lewinsohn
- Department of Vegetable Crops, Newe Ya’ar Research Center, Agricultural Research organization, The Volcani Center, Ramat Yishay30095, Israel
- Department of Vegetable Crops, The Robert Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot76100001, Israel
| | - Natalia Dudareva
- Department of Biochemistry, Purdue University, West Lafayette, IN47907-2063
- Purdue Center for Plant Biology, Purdue University, West Lafayette, IN47907
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN47907-2010
| | - Sylvie Baudino
- Université Jean Monnet Saint-Etienne, Centre National de la Recherche Scientifique, Laboratoire de Biotechnologies Végétales appliquées aux Plantes Aromatiques et Médicinales, Unité Mixte de Recherche 5079, Saint-EtienneF-42023, France
| | - Jean-Claude Caissard
- Université Jean Monnet Saint-Etienne, Centre National de la Recherche Scientifique, Laboratoire de Biotechnologies Végétales appliquées aux Plantes Aromatiques et Médicinales, Unité Mixte de Recherche 5079, Saint-EtienneF-42023, France
| | - Benoît Boachon
- Université Jean Monnet Saint-Etienne, Centre National de la Recherche Scientifique, Laboratoire de Biotechnologies Végétales appliquées aux Plantes Aromatiques et Médicinales, Unité Mixte de Recherche 5079, Saint-EtienneF-42023, France
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Matzrafi M, Wolberg S, Abu-Nassar J, Zelinger E, Bar E, Cafri D, Lewinsohn E, Shtein I. Distinctive foliar features and volatile profiles in three Ambrosia species (Asteraceae). PLANTA 2023; 257:79. [PMID: 36912967 DOI: 10.1007/s00425-023-04113-3] [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: 10/11/2022] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
Ambrosia species differ both in their trichome types and in metabolic profiles of leaf volatiles. The current study provides tools for easier taxonomic identification of ragweed species. The genus Ambrosia (Asteraceae) includes some of the most noxious allergenic invasive weeds in the world. Due to high polymorphism in this genus, identification of species is often difficult. This study focuses on microscopic investigation of foliar features and GC-MS identification of the main leaf volatile components of three Ambrosia species currently found in Israel-invasive species Ambrosia confertiflora and A. tenuifolia, and transient A. grayi. A. confertiflora and A. tenuifolia have three trichome types: non-glandular trichomes, capitate glandular trichomes and linear glandular trichomes. Their non-glandular trichomes and capitate trichomes have distinct structures and can serve as taxonomic characters. A. grayi (the least successful invader) has only very dense covering trichomes. All three Ambrosia species have secretory structures in their leaf midrib. A. confertiflora, the most problematic invasive plant in Israel, had a ten times higher volatiles content than the other two species. In A. confertiflora, the most abundant volatiles were chrysanthenone (25.5%), borneol (18%), germacrene D and (E)-caryophyllene (both around 12%). In A. tenuifolia, the most abundant volatiles were β-myrcene (32.9%), (2E)-hexenal (13%) and 1,8-cineole (11.7%). In A. grayi, the most abundant volatiles were β-myrcene (17.9%), germacrene D (17.8%) and limonene (14%). The three examined species have distinct trichome types and metabolic profiles. Non-glandular trichomes show structural diversification between species and are a good descriptive character. Considering the anthropocentric significance of this highly problematic genus, the current study provides tools for easier identification of ragweed species.
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Affiliation(s)
- Maor Matzrafi
- Department of Plant Pathology and Weed Research, Newe Ya'ar Research Center, Agricultural Research Organization (ARO), Ramat Yishay, Israel
| | | | - Jackline Abu-Nassar
- Department of Plant Pathology and Weed Research, Newe Ya'ar Research Center, Agricultural Research Organization (ARO), Ramat Yishay, Israel
| | - Einat Zelinger
- The Interdepartmental Equipment Unit, Faculty of Agriculture, The Robert H. Smith, Food and Environment, The Hebrew University of Jerusalem, 7610001, Rehovot, Israel
| | - Einat Bar
- Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization (ARO), Ramat Yishay, Israel
| | - Daniella Cafri
- Plant Protection and Inspection Services, Israel, Ministry of Agriculture and Rural Development, Rishon LeZion, Israel
| | - Efraim Lewinsohn
- Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization (ARO), Ramat Yishay, Israel
| | - Ilana Shtein
- Eastern R&D Center, Milken Campus, Ariel, Israel.
- Department of Molecular Biology, Ariel University, Ariel, Israel.
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7
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Chen J, Tan J, Duan X, Wang Y, Wen J, Li W, Li Z, Wang G, Xu H. Plastidial engineering with coupled farnesyl diphosphate pool reconstitution and enhancement for sesquiterpene biosynthesis in tomato fruit. Metab Eng 2023; 77:41-52. [PMID: 36893914 DOI: 10.1016/j.ymben.2023.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/20/2023] [Accepted: 03/05/2023] [Indexed: 03/09/2023]
Abstract
Sesquiterpenes represent a large class of terpene compounds found in plants with broad applications such as pharmaceuticals and biofuels. The plastidial MEP pathway in ripening tomato fruit is naturally optimized to provide the 5-carbon isoprene building blocks of all terpenes for production of the tetraterpene pigment lycopene and other carotenoids, making it an excellent plant system to be engineered for production of high-value terpenoids. We reconstituted and enhanced the pool of sesquiterpene precursor farnesyl diphosphate (FPP) in plastids of tomato fruit by overexpressing the fusion gene DXS-FPPS encoding a fusion protein of 1-deoxy-D-xylulose 5-phosphate synthase (DXS) linked with farnesyl diphosphate synthase (originally called farnesyl pyrophosphate synthase, and abbreviated as FPPS) under the control of fruit-ripening specific polygalacturonase (PG) promoter concomitant with substantial reduction in lycopene content and large production of FPP-derived squalene. The supply of precursors achieved by the fusion gene expression can be harnessed by an engineered sesquiterpene synthase that is retargeted to plastid to engineer high-yield sesquiterpene production in tomato fruit, offering an effective production system for high-value sesquiterpene ingredients.
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Affiliation(s)
- Jing Chen
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
| | - Jing Tan
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
| | - Xinyu Duan
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
| | - Ying Wang
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
| | - Jing Wen
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
| | - Wei Li
- Shenzhen Key Laboratory of Agricultural Synthetic Biology, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China; Kunpeng Institute of Modern Agriculture at Foshan, Foshan, 528200, China.
| | - Zhengguo Li
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
| | - Guodong Wang
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Haiyang Xu
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
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8
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Chen X, Quek SY. Free and glycosidically bound aroma compounds in fruit: biosynthesis, transformation, and practical control. Crit Rev Food Sci Nutr 2022; 63:9052-9073. [PMID: 35452325 DOI: 10.1080/10408398.2022.2064422] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Fruit aroma makes an initial flavor impression and largely determines the consumer preference and acceptance of fruit products. Free volatile organic compounds (FVOCs) directly make up the characteristic aromas of fruits. While glycosidically bound volatile compounds (GBVs) can be hydrolyzed during fruit ripening, postharvest storage, and processing, releasing the attached aglycones as free volatiles that could alter the overall aroma attributes of fruits. GBVs typically exhibit significantly higher concentrations than their free counterparts in fruits such as grapes, cherries, kiwifruits, tomatoes, and tamarillos. This review highlights the biosynthesis of FVOCs and GBVs in fruit and illustrates their biological transformations for various functional purposes such as detoxification, aroma enhancement, plant defense, and pollinator attraction. Practical applications for regulating the levels of aroma compounds emitted or accumulated in fruit are also reviewed, emphasizing the metabolic engineering of free volatile metabolites and hydrolytic technologies on aroma glycosides. Generally, enzymatic hydrolysis using AR2000 is a common strategy to enhance the sensory attributes of fruit juices/wines, while acidic hydrolysis induces the oxidation and rearrangement of aglycones, generating artifacts with off-aromas. This review associates the occurrence of free and glycosidic bound volatiles in fruit and addresses their importance in fruit flavor enhancement and industrial applications.
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Affiliation(s)
- Xiao Chen
- School of Chemical Sciences, The University of Auckland, Auckland, New Zealand
| | - Siew Young Quek
- School of Chemical Sciences, The University of Auckland, Auckland, New Zealand
- Riddet Institute, Centre of Research Excellence in Food Research, Palmerston North, New Zealand
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9
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Ali M, Alshehri D, Alkhaibari AM, Elhalem NA, Darwish DBE. Cloning and Characterization of 1,8-Cineole Synthase ( SgCINS) Gene From the Leaves of Salvia guaranitica Plant. FRONTIERS IN PLANT SCIENCE 2022; 13:869432. [PMID: 35498676 PMCID: PMC9051517 DOI: 10.3389/fpls.2022.869432] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 02/28/2022] [Indexed: 05/08/2023]
Abstract
Monoterpenes are one of the most common groups belonging to the terpenoid family, with a C10 structure comprising of two isoprene units. Most of monoterpenes are volatile plant compounds, and they act as signaling molecules between plants and the environment, particularly as defensive compounds against herbivores and pathogens. In this study, 1,8-cineole synthase (SgCINS) gene was identified and cloned from the leaves of Salvia guaranitica plant. To examine the role of SgCINS in insect resistance, we transformed and expressed this gene into tobacco leaves. The metabolic analysis revealed that the production of various types and amount of terpenoid was increased and decreased in SgCINS overexpression and control lines, respectively, suggesting that overexpressing SgCINS in transgenic tobacco plants lead to an increase in the production of various types of terpenoids and other phytochemical compounds. These results indicated why transgenic tobacco was highly resistant against cotton worm than the highly susceptible control plants. Our results demonstrate that the SgCINS gene can play an important role in plants against cotton worm insect attack, and pave the way for using terpenoids genes for improving resistance to insect attack in higher plants.
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Affiliation(s)
- Mohammed Ali
- Egyptian Deserts Gene Bank, North Sinai Research Station, Department of Genetic Resources, Desert Research Center, Cairo, Egypt
- *Correspondence: Mohammed Ali, , , orcid.org/0000-0001-9232-1781
| | - Dikhnah Alshehri
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia
| | | | - Naeema A. Elhalem
- Egyptian Deserts Gene Bank, North Sinai Research Station, Department of Genetic Resources, Desert Research Center, Cairo, Egypt
| | - Doaa Bahaa Eldin Darwish
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia
- Department of Botany, Faculty of Science, Mansoura University, Mansoura, Egypt
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10
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Wang F, Park YL, Gutensohn M. Epidermis-Specific Metabolic Engineering of Sesquiterpene Formation in Tomato Affects the Performance of Potato Aphid Macrosiphum euphorbiae. FRONTIERS IN PLANT SCIENCE 2021; 12:793313. [PMID: 35003184 PMCID: PMC8727598 DOI: 10.3389/fpls.2021.793313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 11/29/2021] [Indexed: 06/14/2023]
Abstract
Tomato produces a number of terpenes in their glandular trichomes that contribute to host plant resistance against pests. While glandular trichomes of cultivated tomato Solanum lycopersicum primarily accumulate a blend of monoterpenes, those of the wild tomato species Solanum habrochaites produce various sesquiterpenes. Recently, we have identified two groups of sesquiterpenes in S. habrochaites accessions that negatively affect the performance and choice behavior of the potato aphid (Macrosiphum euphorbiae). Aphids are piercing-sucking herbivores that use their mouthpart to penetrate and probe plant tissues in order to ultimately access vascular tissue and ingest phloem sap. Because secondary metabolites produced in glandular trichomes can affect the initial steps of the aphid feeding behavior, introducing the formation of defensive terpenes into additional plant tissues via metabolic engineering has the potential to reduce tissue penetration by aphids and in consequence virus transmission. Here, we have developed two multicistronic expression constructs based on the two sesquiterpene traits with activity toward M. euphorbiae previously identified in S. habrochaites. Both constructs are composed of sequences encoding a prenyl transferase and a respective S. habrochaites terpene synthase, as well as enhanced green fluorescent protein as a visible marker. All three coding sequences were linked by short nucleotide sequences encoding the foot-and-mouth disease virus 2A self-processing oligopeptide which allows their co-expression under the control of one promoter. Transient expression of both constructs under the epidermis-specific Arabidopsis CER5-promoter in tomato leaves demonstrated that formation of the two sets of defensive sesquiterpenes, β-caryophyllene/α-humulene and (-)-endo-α-bergamotene/(+)-α-santalene/(+)-endo-β-bergamotene, can be introduced into new tissues in tomato. The epidermis-specific transgene expression and terpene formation were verified by fluorescence microscopy and tissue fractionation with subsequent analysis of terpene profiles, respectively. In addition, the longevity and fecundity of M. euphorbiae feeding on these engineered tomato leaves were significantly reduced, demonstrating the efficacy of this novel aphid control strategy.
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11
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Li DS, Hua J, Luo SH, Liu YC, Chen YG, Ling Y, Guo K, Liu Y, Li SH. An extremely promiscuous terpenoid synthase from the Lamiaceae plant Colquhounia coccinea var. mollis catalyzes the formation of sester-/di-/sesqui-/mono-terpenoids. PLANT COMMUNICATIONS 2021; 2:100233. [PMID: 34746763 PMCID: PMC8554039 DOI: 10.1016/j.xplc.2021.100233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/03/2021] [Accepted: 08/10/2021] [Indexed: 05/05/2023]
Abstract
Terpenoids are the largest class of natural products with complex structures and extensive bioactivities; their scaffolds are generated by diverse terpenoid synthases (TPSs) from a limited number of isoprenoid diphosphate precursors. Promiscuous TPSs play important roles in the evolution of terpenoid chemodiversity, but they remain largely unappreciated. Here, an extremely promiscuous terpenoid synthase (CcTPS1) of the TPS-b subfamily was cloned and functionally characterized from a leaf-specific transcriptome of the Lamiaceae plant Colquhounia coccinea var. mollis. CcTPS1 is the first sester-/di-/sesqui-/mono-TPS identified from the plant kingdom, accepting C25/C20/C15/C10 diphosphate substrates to generate a panel of sester-/di-/sesqui-/mono-terpenoids. Engineered Escherichia coli expressing CcTPS1 produced three previously unreported terpenoids (two sesterterpenoids and a diterpenoid) with rare cyclohexane-containing skeletons, along with four sesquiterpenoids and one monoterpenoid. Their structures were elucidated by extensive nuclear magnetic resonance spectroscopy. Nicotiana benthamiana transiently expressing CcTPS1 also produced the diterpenoid and sesquiterpenoids, demonstrating the enzyme's promiscuity in planta. Its highly leaf-specific expression pattern combined with detectable terpenoid products in leaves of C. coccinea var. mollis and N. benthamiana expressing CcTPS1 suggested that CcTPS1 was mainly responsible for diterpenoid and sesquiterpenoid biosynthesis in plants. CcTPS1 expression and the terpenoid products could be induced by methyl jasmonate, suggesting their possible role in plant-environment interaction. CcTPS1 was localized to the cytosol and may differ from mono-TPSs in subcellular compartmentalization and substrate tolerance. These findings will greatly aid our understanding of plant TPS evolution and terpenoid chemodiversity; they also highlight the enormous potential of transcriptome mining and heterologous expression for the exploration of unique enzymes and natural products hidden in plants.
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Affiliation(s)
- De-Sen Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Juan Hua
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shengyang 110866, P. R. China
| | - Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shengyang 110866, P. R. China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
| | - Yue-Gui Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yi Ling
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
| | - Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- State Key Laboratory of Southwestern Chinese Medicine Resources and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- State Key Laboratory of Southwestern Chinese Medicine Resources and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
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12
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Gutensohn M, Henry LK, Gentry SA, Lynch JH, Nguyen TTH, Pichersky E, Dudareva N. Overcoming Bottlenecks for Metabolic Engineering of Sesquiterpene Production in Tomato Fruits. FRONTIERS IN PLANT SCIENCE 2021; 12:691754. [PMID: 34220915 PMCID: PMC8248349 DOI: 10.3389/fpls.2021.691754] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 05/17/2021] [Indexed: 06/13/2023]
Abstract
Terpenoids are a large and diverse class of plant metabolites that also includes volatile mono- and sesquiterpenes which are involved in biotic interactions of plants. Due to the limited natural availability of these terpenes and the tight regulation of their biosynthesis, there is strong interest to introduce or enhance their production in crop plants by metabolic engineering for agricultural, pharmaceutical and industrial applications. While engineering of monoterpenes has been quite successful, expression of sesquiterpene synthases in engineered plants frequently resulted in production of only minor amounts of sesquiterpenes. To identify bottlenecks for sesquiterpene engineering in plants, we have used two nearly identical terpene synthases, snapdragon (Antirrhinum majus) nerolidol/linalool synthase-1 and -2 (AmNES/LIS-1/-2), that are localized in the cytosol and plastids, respectively. Since these two bifunctional terpene synthases have very similar catalytic properties with geranyl diphosphate (GPP) and farnesyl diphosphate (FPP), their expression in target tissues allows indirect determination of the availability of these substrates in both subcellular compartments. Both terpene synthases were expressed under control of the ripening specific PG promoter in tomato fruits, which are characterized by a highly active terpenoid metabolism providing precursors for carotenoid biosynthesis. As AmNES/LIS-2 fruits produced the monoterpene linalool, AmNES/LIS-1 fruits were found to exclusively produce the sesquiterpene nerolidol. While nerolidol emission in AmNES/LIS-1 fruits was 60- to 584-fold lower compared to linalool emission in AmNES/LIS-2 fruits, accumulation of nerolidol-glucosides in AmNES/LIS-1 fruits was 4- to 14-fold lower than that of linalool-glucosides in AmNES/LIS-2 fruits. These results suggest that only a relatively small pool of FPP is available for sesquiterpene formation in the cytosol. To potentially overcome limitations in sesquiterpene production, we transiently co-expressed the key pathway-enzymes hydroxymethylglutaryl-CoA reductase (HMGR) and 1-deoxy-D-xylulose 5-phosphate synthase (DXS), as well as the regulator isopentenyl phosphate kinase (IPK). While HMGR and IPK expression increased metabolic flux toward nerolidol formation 5.7- and 2.9-fold, respectively, DXS expression only resulted in a 2.5-fold increase.
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Affiliation(s)
- Michael Gutensohn
- Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV, United States
| | - Laura K. Henry
- Department of Biochemistry, Purdue University, West Lafayette, IN, United States
| | - Scott A. Gentry
- Department of Biochemistry, Purdue University, West Lafayette, IN, United States
| | - Joseph H. Lynch
- Department of Biochemistry, Purdue University, West Lafayette, IN, United States
- Purdue Center for Plant Biology, Purdue University, West Lafayette, IN, United States
| | - Thuong T. H. Nguyen
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, United States
| | - Eran Pichersky
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, United States
| | - Natalia Dudareva
- Department of Biochemistry, Purdue University, West Lafayette, IN, United States
- Purdue Center for Plant Biology, Purdue University, West Lafayette, IN, United States
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, United States
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13
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Rice Sesquiterpene Plays Important Roles in Antixenosis against Brown Planthopper in Rice. PLANTS 2021; 10:plants10061049. [PMID: 34067367 PMCID: PMC8224800 DOI: 10.3390/plants10061049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/18/2021] [Accepted: 05/20/2021] [Indexed: 11/17/2022]
Abstract
The rice sesquiterpene synthase II gene (OsSTPS2, LOC_Os04g27430), which is involved in the antixenosis defense mechanism of rice against brown planthopper (BPH) infestation, was identified in the BPH-resistant rice variety Rathu Heenati (RH). In contrast, the gene was not functional in the BPH-susceptible rice variety KDML105 (KD). Single-nucleotide polymorphisms (SNPs) in the promoter region and in exon 5 of the gene and a seven amino acid deletion in the deduced protein sequence are suggested as factors that negatively regulate the function of the gene. Sequence analysis of the promoter region and expression analysis of the OsSTPS2 gene in several rice genotypes revealed the correlation of SNPs of the ATHB-1, SBE1, and P-factor with the expression of the gene. Genomic and complementary DNA (cDNA) sequence analysis at exon 5 of the gene showed that the 21 bp deletion naturally occurred in several rice genotypes. The antixenosis of the BPH feeding preference (AFP) of rice varieties differed in the seven amino acid deletion lesion of the gene, suggesting that the seven amino acid deletion negatively controls the antixenosis mechanism during BPH infestation. Analysis of the plant volatile compounds released after BPH infestation suggested that E-β-farnesene (EBF) is the major product of the OsSTPS2 gene.
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14
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Dai Z, Pomraning KR, Panisko EA, Hofstad BA, Campbell KB, Kim J, Robles AL, Deng S, Magnuson JK. Genetically Engineered Oleaginous Yeast Lipomyces starkeyi for Sesquiterpene α-Zingiberene Production. ACS Synth Biol 2021; 10:1000-1008. [PMID: 33915043 DOI: 10.1021/acssynbio.0c00503] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Oleaginous yeast, such as Lipomyces starkeyi, are logical organisms for production of higher energy density molecules like lipids and terpenes. We demonstrate that transgenic L. starkeyi strains expressing an α-zingiberene synthase gene from lemon basil or Hall's panicgrass can produce up to 17 mg/L α-zingiberene in yeast extract peptone dextrose (YPD) medium containing 4% glucose. The transgenic strain was further examined in 8% glucose media with C/N ratios of 20 or 100, and YPD. YPD medium resulted in 59 mg/L α-zingiberene accumulation. Overexpression of selected genes from the mevalonate pathway achieved 145% improvement in α-zingiberene synthesis. Optimization of the growth medium for α-zingiberene production led to 15% higher titer than YPD medium. The final transgenic strain produced 700 mg/L α-zingiberene in fed-batch bioreactor culture. This study opens a new synthetic route to produce α-zingiberene or other terpenoids in L. starkeyi and establishes this yeast as a platform for jet fuel biosynthesis.
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Affiliation(s)
- Ziyu Dai
- Chemical and Biological Processes Development Group, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Kyle R. Pomraning
- Chemical and Biological Processes Development Group, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Ellen A. Panisko
- Chemical and Biological Processes Development Group, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Beth A. Hofstad
- Chemical and Biological Processes Development Group, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Kristen B. Campbell
- Chemical and Biological Processes Development Group, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Joonhoon Kim
- Chemical and Biological Processes Development Group, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Ana L. Robles
- Chemical and Biological Processes Development Group, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Shuang Deng
- Chemical and Biological Processes Development Group, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Jon K. Magnuson
- Chemical and Biological Processes Development Group, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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15
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Fang F, Oliva M, Ovadia R, Bar E, Nissim-Levi A, Kumar V, Wang R, Neeman A, Zaccai M, Lewinsohn E, Oren-Shamir M. Increased substrate availability reveals the potential of scentless lisianthus flowers in producing fragrant benzenoid-phenylpropanoids. PHYSIOLOGIA PLANTARUM 2021; 172:19-28. [PMID: 33161590 DOI: 10.1111/ppl.13264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/02/2020] [Accepted: 11/02/2020] [Indexed: 06/11/2023]
Abstract
Lisianthus (Eustoma grandiflorum), a leading plant in the cut flower industry, is scentless. Here we show that lisianthus flowers have potential to produce several fragrant benzenoid-phenylpropanoids when substrate availability is not limited. To enable hyperaccumulation of substrates for the production of volatile benzenoid-phenylpropanoids, lisianthus commercial hybrid "Excalibur Pink" was transformed via floral dipping with a feedback-insensitive Escherichia coli DAHP synthase (AroG*) and Clarkia breweri benzyl alcohol acetyltransferase (BEAT), under constitutive promoters. The T1 progeny of "Excalibur Pink" plants segregated into four visual phenotypes, with pink or white colored petals and multiple or single petal layers. Interestingly, transformation with AroG* and BEAT caused no significant effect in the pigment composition among phenotypes, but did increase the levels of down-stream fragrant volatile benzenoids. All the transgenic lines exclusively accumulated methyl benzoate, a fragrant benzenoid, either in their petals or leaves. Furthermore, feeding with benzyl alcohol resulted in the accumulation of two novel benzenoids, benzyl acetate (the product of BEAT) and benzoate, as well as a dramatic increase in the concentrations of additional benzenoid-phenylpropanoid volatiles. Presumably, the degree of benzaldehyde overproduction after benzyl alcohol feeding in both leaves and flowers revealed their reverse conversion in lisianthus plants. These findings demonstrate the concealed capability of lisianthus plants to produce a wide array of fragrant benzenoid-phenylpropanoids, given high substrate concentrations, which could in turn open opportunities for future scent engineering.
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Affiliation(s)
- Fang Fang
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, Rishon LeZion, Israel
| | - Moran Oliva
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, Rishon LeZion, Israel
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Rinat Ovadia
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, Rishon LeZion, Israel
| | - Einat Bar
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, Volcani Center, Ramat Yishay, Israel
| | - Ada Nissim-Levi
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, Rishon LeZion, Israel
| | - Varun Kumar
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, Rishon LeZion, Israel
| | - Ru Wang
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, Rishon LeZion, Israel
| | - Agmon Neeman
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, Rishon LeZion, Israel
| | - Michele Zaccai
- Department of Life Sciences, Ben Gurion University of the Negev, Beersheva, Israel
| | - Efraim Lewinsohn
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, Volcani Center, Ramat Yishay, Israel
| | - Michal Oren-Shamir
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, Rishon LeZion, Israel
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16
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Zhang X, Teixeira da Silva JA, Niu M, Zhang T, Liu H, Zheng F, Yuan Y, Li Y, Fang L, Zeng S, Ma G. Functional characterization of an Indian sandalwood (Santalum album L.) dual-localized bifunctional nerolidol/linalool synthase gene involved in stress response. PHYTOCHEMISTRY 2021; 183:112610. [PMID: 33383368 DOI: 10.1016/j.phytochem.2020.112610] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 12/01/2020] [Accepted: 12/01/2020] [Indexed: 06/12/2023]
Abstract
Essential oils extracted from the heartwood of Indian sandalwood (Santalum album L.) contain linalool and nerolidol as minor components. However, nerolidol/linalool synthase (NES/LIS), which produce linalool and nerolidol, have yet to be characterized in sandalwood. Using a transcriptomic-based approach, a terpene synthase gene was screened from unigenes of transcriptome data derived from S. album seedlings exposed to low temperature (4 °C). The enzyme encoded by these complementary DNAs belongs to the TPS-b clade. Recombinant SaNES/LIS is a bifunctional enzyme that can catalyze the formation of (E)-nerolidol from farnesyl diphosphate and linalool from geranyl diphosphate, respectively. Whereas SaNES/LIS was primarily localized in chloroplastids, both as granular fluorescence and as diffuse fluorescence, it was also detected in the cytosol of a limited number of cells. Agrobacterium tumefaciens-mediated transient gene expression in planta produced the same terpene products as those obtained in vitro. Real-time PCR analysis showed the highest expression of SaNES/LIS in fruits, with about a three-fold higher level than in leaves, followed by flowers, heartwood and roots. SaNES/LIS transcripts were differentially activated in different tissues in response to methyl jasmonate, cold, high temperature, strong illumination, and drought stress. Our results provide novel insight into the role of sandalwood terpenoids in response to various environmental stresses.
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Affiliation(s)
- Xinhua Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China.
| | - Jaime A Teixeira da Silva
- Independent Researcher, P. O. Box 7, Miki Cho Post Office, Ikenobe 3011-2, Kagawa-Ken, 761-0799, Japan
| | - Meiyun Niu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Ting Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Huanfang Liu
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Feng Zheng
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Yunfei Yuan
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Yuan Li
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Lin Fang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Songjun Zeng
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Guohua Ma
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
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17
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Metabolomics Intervention Towards Better Understanding of Plant Traits. Cells 2021; 10:cells10020346. [PMID: 33562333 PMCID: PMC7915772 DOI: 10.3390/cells10020346] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 02/06/2023] Open
Abstract
The majority of the most economically important plant and crop species are enriched with the availability of high-quality reference genome sequences forming the basis of gene discovery which control the important biochemical pathways. The transcriptomics and proteomics resources have also been made available for many of these plant species that intensify the understanding at expression levels. However, still we lack integrated studies spanning genomics–transcriptomics–proteomics, connected to metabolomics, the most complicated phase in phenotype expression. Nevertheless, for the past few decades, emphasis has been more on metabolome which plays a crucial role in defining the phenotype (trait) during crop improvement. The emergence of modern high throughput metabolome analyzing platforms have accelerated the discovery of a wide variety of biochemical types of metabolites and new pathways, also helped in improving the understanding of known existing pathways. Pinpointing the causal gene(s) and elucidation of metabolic pathways are very important for development of improved lines with high precision in crop breeding. Along with other-omics sciences, metabolomics studies have helped in characterization and annotation of a new gene(s) function. Hereby, we summarize several areas in the field of crop development where metabolomics studies have made its remarkable impact. We also assess the recent research on metabolomics, together with other omics, contributing toward genetic engineering to target traits and key pathway(s).
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Jukić Špika M, Dumičić G, Brkić Bubola K, Soldo B, Goreta Ban S, Vuletin Selak G, Ljubenkov I, Mandušić M, Žanić K. Modification of the Sensory Profile and Volatile Aroma Compounds of Tomato Fruits by the Scion × Rootstock Interactive Effect. FRONTIERS IN PLANT SCIENCE 2021; 11:616431. [PMID: 33552108 PMCID: PMC7855179 DOI: 10.3389/fpls.2020.616431] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/28/2020] [Indexed: 06/12/2023]
Abstract
Sensory quality is of increasing importance to consumer decisions in choosing a product, and it is certainly an important factor in repurchasing in terms of meeting the necessary aroma quality and taste properties. To better understand the effects of rootstocks and scions on fruit quality, the sensory profile and volatile aroma composition of the fruits of hydroponically grown tomato plants were evaluated. Experiments were established using the tomato cultivars Clarabella and Estatio as scions during two spring-summer seasons. In both experiments, the scion plants were self-grafted or grafted onto rootstocks of cultivars Arnold, Buffon, Emperador, and Maxifort, with the exception that in experiment 1, the Estatio scion was not grafted onto Buffon. The scions and rootstocks caused differences in observed sensory properties in both experiments. For most of the sensory traits, interaction effects between scion and rootstock were observed. Compared to those obtained from self-grafted Clarabella, the fruits obtained from Clarabella grafted onto Buffon in the first experiment and Clarabella grafted onto Arnold in the second experiment were sweeter by one measurement unit. The contents of seven aldehydes, six alcohols, five terpenes and two ketones were determined. A lower accumulation of total aldehydes, 22-45%, due to lower amounts of pentanal, (E)-2-heptanal and (E,E)-2,4-decadienal, was found in the fruits from plants where Estatio was rootstock compared with the other rootstocks treatments. Clarabella as a rootstock increased (Z)-3-hexenal + (E)-2-hexenal accumulation from 35 to 65%. Grafting Clarabella onto the tested rootstocks led to a change in the composition of volatile compounds, while differences between the combinations with Estatio as a scion were generally not recorded. Fruits from self-grafted Clarabella had higher (Z)-3-hexenal + (E)-2-hexenal concentrations than did fruits from Clarabella grafted onto Arnold (for 54%) and Emperador (for 68%), and in the second experiment, grafting onto all commercial rootstocks reduced (Z)-3-hexenal + (E)-2-hexenal concentrations, from 25 to 74%, compared to those from self-grafted Clarabella. Higher (+)-2-carene and (-)-caryophyllene oxide concentrations were attained in plants in which Clarabella was grafted onto Maxifort (by 56%) and plants in which Estatio was grafted onto Arnold (by 36%) compared to self-grafted plants. This study showed the possibility of altering the composition of volatile aroma compounds and sensory properties of tomato fruits by the use of grafting techniques.
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Affiliation(s)
- Maja Jukić Špika
- Department of Applied Sciences, Institute for Adriatic Crops and Karst Reclamation, Split, Croatia
- Centre of Excellence for Biodiversity and Molecular Plant Breeding, Zagreb, Croatia
| | - Gvozden Dumičić
- Department of Plant Sciences, Institute for Adriatic Crops and Karst Reclamation, Split, Croatia
| | - Karolina Brkić Bubola
- Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, Poreč, Croatia
| | - Barbara Soldo
- Department of Chemistry, Faculty of Science, University of Split, Split, Croatia
| | - Smiljana Goreta Ban
- Centre of Excellence for Biodiversity and Molecular Plant Breeding, Zagreb, Croatia
- Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, Poreč, Croatia
| | - Gabriela Vuletin Selak
- Department of Applied Sciences, Institute for Adriatic Crops and Karst Reclamation, Split, Croatia
- Centre of Excellence for Biodiversity and Molecular Plant Breeding, Zagreb, Croatia
| | - Ivica Ljubenkov
- Department of Chemistry, Faculty of Science, University of Split, Split, Croatia
| | - Marija Mandušić
- Department of Applied Sciences, Institute for Adriatic Crops and Karst Reclamation, Split, Croatia
| | - Katja Žanić
- Department of Applied Sciences, Institute for Adriatic Crops and Karst Reclamation, Split, Croatia
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19
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Dhandapani S, Tjhang JG, Jang IC. Production of multiple terpenes of different chain lengths by subcellular targeting of multi-substrate terpene synthase in plants. Metab Eng 2020; 61:397-405. [PMID: 32795613 DOI: 10.1016/j.ymben.2020.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 07/03/2020] [Accepted: 08/05/2020] [Indexed: 12/17/2022]
Abstract
Multi-substrate terpene synthases (TPSs) are distinct from typical TPSs that react with a single substrate. Although in vitro activity of few multi-substrate TPSs have been reported, in vivo characterization has not been well investigated for most of them. Here, a new TPS from Cananga odorata, CoTPS5, belonging to TPS-f subfamily was functionally characterized in vitro as well as in vivo. CoTPS5 reacted with multiple prenyl-pyrophosphate substrates of various chain lengths as a multi-substrate TPS. It catalyzed the formation of (E)-β-ocimene, (E,E)-α-farnesene and α-springene from geranyl pyrophosphate, (E,E)-farnesyl pyrophosphate and geranylgeranyl pyrophosphate, respectively. Upon transient expression in Nicotiana benthamiana, CoTPS5 localized to cytosol and produced only (E,E)-α-farnesene. However, expression of plastid-targeted CoTPS5 in N. benthamiana resulted in biosynthesis of all three compounds, (E)-β-ocimene, (E,E)-α-farnesene and α-springene. Similarly, transgenic Arabidopsis plants overexpressing plastid-targeted CoTPS5 showed stable and sustainable production of (E)-β-ocimene, (E,E)-α-farnesene and α-springene. Moreover, their production did not affect the growth and development of transgenic Arabidopsis plants. Our results demonstrate that redirecting multi-substrate TPS to a different intracellular compartment could be an effective way to prove in vivo activity of multi-substrate TPSs and thereby allowing for the production of multiple terpenoids simultaneously in plants.
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Affiliation(s)
- Savitha Dhandapani
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore, 117604, Singapore
| | - Jessica Gambino Tjhang
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore, 117604, Singapore
| | - In-Cheol Jang
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore, 117604, Singapore; Department of Biological Sciences, National University of Singapore, Singapore, 117543, Singapore.
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20
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Nawade B, Shaltiel-Harpaz L, Yahyaa M, Kabaha A, Kedoshim R, Bosamia TC, Ibdah M. Characterization of terpene synthase genes potentially involved in black fig fly (Silba adipata) interactions with Ficus carica. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 298:110549. [PMID: 32771161 DOI: 10.1016/j.plantsci.2020.110549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 06/01/2020] [Accepted: 06/03/2020] [Indexed: 06/11/2023]
Abstract
The black fig fly (Silba adipata) is one of the major pests of figs worldwide. This study investigated the effect of pollination on black fig fly infestation and volatile emission during fruit development of facultative parthenocarpic Ficus carica. The results from in-field oviposition preference of black fig fly, olfactory analysis, and fruit volatile profiles indicate that the black fig fly gave a strong preference to unpollinated figs that showed higher emissions of volatile organic compounds. Terpenes are known to be important compounds determining many insect-plant interactions, so we report a transcriptome-based identification and functional characterization of a terpene synthase (TPS) gene family in F. carica. The protein expression in Escherichia coli of eight terpene synthases (TPSs) revealed that three were monoterpene synthases belonging to the TPS-b clade, with FcTPS6 catalyzing the formation of 1,8-cineole while the other two converted GPP into linalool. Four sesquiterpene synthases from the TPS-a clade catalyze the formation of germacrene D (FcTPS1), E-β-caryophyllene (FcTPS2), cadinene (FcTPS3) and δ-elemene (FcTPS5) while one sesquiterpene synthase FcTPS4 from the TPS-b clade showed nerolidol synthase activity. Most of the enzymatic products closely matched the volatile terpenes emitted from fig fruits and all the genes were expressed during fruit development. This study provides new insights into fig-insect interactions and understanding the molecular mechanisms of terpene biosynthesis and could provide the foundations for sustainable pest management strategies.
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Affiliation(s)
- Bhagwat Nawade
- Newe Yaar Research Center, Agricultural Research Organization, P. O. Box 1021, Ramat Yishay, 30095, Israel
| | - Liora Shaltiel-Harpaz
- Tel Hai College, Upper Galilee, 12210, Israel; Migal Galilee Research Institute, P.O. Box 831, Kiryat Shmona, 11016, Israel
| | - Mosaab Yahyaa
- Newe Yaar Research Center, Agricultural Research Organization, P. O. Box 1021, Ramat Yishay, 30095, Israel
| | - Anas Kabaha
- Newe Yaar Research Center, Agricultural Research Organization, P. O. Box 1021, Ramat Yishay, 30095, Israel
| | - Rika Kedoshim
- Migal Galilee Research Institute, P.O. Box 831, Kiryat Shmona, 11016, Israel
| | - Tejas C Bosamia
- ICAR-Directorate of Groundnut Research, P.O. Box 362001, Junagadh, Gujarat, India
| | - Mwafaq Ibdah
- Newe Yaar Research Center, Agricultural Research Organization, P. O. Box 1021, Ramat Yishay, 30095, Israel.
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21
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Kumar V, Hatan E, Bar E, Davidovich-Rikanati R, Doron-Faigenboim A, Spitzer-Rimon B, Elad Y, Alkan N, Lewinsohn E, Oren-Shamir M. Phenylalanine increases chrysanthemum flower immunity against Botrytis cinerea attack. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 104:226-240. [PMID: 32645754 DOI: 10.1111/tpj.14919] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 06/22/2020] [Accepted: 07/02/2020] [Indexed: 05/28/2023]
Abstract
Flowers are the most vulnerable plant organ to infection by the necrotrophic fungus Botrytis cinerea. Here we show that pre-treatment of chrysanthemum (Chrysanthemum morifolium) flowers with phenylalanine (Phe) significantly reduces their susceptibility to B. cinerea. To comprehend how Phe treatment induces resistance, we monitored the dynamics of metabolites (by GC/LC-MS) and transcriptomes (by RNAseq) in flowers after Phe treatment and B. cinerea infection. Phe treatment resulted in accumulation of 3-phenyllactate and benzaldehyde, and in particular induced the expression of genes related to Ca2+ signaling and receptor kinases, implicating an induction of the defense response. Interestingly, the main effects of Phe treatment were observed in flowers exposed to B. cinerea infection, stabilizing the global fluctuations in the levels of metabolites and transcripts while reducing susceptibility to the fungus. We suggest that Phe-induced resistance is associated to cell priming, enabling rapid and targeted reprogramming of cellular defense responses to resist disease development. After Phe pre-treatment, the levels of the anti-fungal volatiles phenylacetaldehyde and eugenol were maintained and the level of coniferin, a plausible monolignol precursor in cell wall lignification, was strongly increased. In addition, Phe pre-treatment reduced ROS generation, prevented ethylene emission, and caused changes in the expression of a minor number of genes related to cell wall biogenesis, encoding the RLK THESEUS1, or involved in Ca2+ and hormonal signaling processes. Our findings point to Phe pre-treatment as a potential orchestrator of a broad-spectrum defense response which may not only provide an ecologically friendly pest control strategy but also offers a promising way of priming plants to induce defense responses against B. cinerea.
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Affiliation(s)
- Varun Kumar
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, Rishon LeZion, P.O.B 15159, Israel
| | - Erel Hatan
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, Rishon LeZion, P.O.B 15159, Israel
| | - Einat Bar
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, Ramat Yishay, 30095, Israel
| | - Rachel Davidovich-Rikanati
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, Ramat Yishay, 30095, Israel
| | - Adi Doron-Faigenboim
- Department of Vegetable and Field Crops, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, Rishon LeZion, P.O.B 15159, Israel
| | - Ben Spitzer-Rimon
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, Rishon LeZion, P.O.B 15159, Israel
| | - Yigal Elad
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, Rishon LeZion, P.O.B 15159, Israel
| | - Noam Alkan
- Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, Rishon LeZion, P.O.B 15159, Israel
| | - Efraim Lewinsohn
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, Ramat Yishay, 30095, Israel
| | - Michal Oren-Shamir
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, Rishon LeZion, P.O.B 15159, Israel
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22
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Hivert G, Davidovich-Rikanati R, Bar E, Sitrit Y, Schaffer A, Dudareva N, Lewinsohn E. Prenyltransferases catalyzing geranyldiphosphate formation in tomato fruit. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 296:110504. [PMID: 32540020 DOI: 10.1016/j.plantsci.2020.110504] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/11/2020] [Accepted: 04/16/2020] [Indexed: 06/11/2023]
Abstract
Monoterpenes contribute either favorably or adversely to the flavor of tomato, yet modern tomato varieties generally lack monoterpenes in their fruit. The main immediate biosynthetic precursor of monoterpenes is geranyldiphosphate (GPP), produced by the action of GPP synthases (GPPSs). Plant GPPSs are often heteromeric enzymes consisting of a non-catalytic small subunit (GPPS.SSU) and a large subunit (GPPS.LSU), the latter similar to geranylgeranyldiphosphate synthases (GGPPSs) which generate longer prenylphosphate chains. We show here that LeGGPPS2, an enzyme previously reported to support carotenoid biosynthesis, can synthesize farnesyldiphosphate (FPP) and GPP in vitro, in addition to geranylgeranyldiphosphate, depending on the assay conditions. Moreover, GPP formation is favored in vitro by the interaction of LeGGPPS2 with GPPS.SSU from either Anthirrhinum majus (AmGPPS.SSU) or from a newly discovered GPPS.SSU ortholog present in the genome of M82 tomato. SlGPPS.SSU is not expressed in M82 tomato fruit but its orthologs are expressed in fruit of wild tomato relatives, such as Solanum pimpinelifollium and S. cheesmaniae that accumulate monoterpenes.
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Affiliation(s)
- Gal Hivert
- Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel; Department of Vegetable Crops, The Robert Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100001 Israel
| | - Rachel Davidovich-Rikanati
- Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Einat Bar
- Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Yaron Sitrit
- French Associates Institute for Agriculture and Biotechnology of Drylands, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer Sheva, 84105, Israel
| | - Arthur Schaffer
- Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, P.O Box 6, Bet Dagan 50250, Israel
| | - Natalia Dudareva
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907-1165, USA
| | - Efraim Lewinsohn
- Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel; Department of Vegetable Crops, The Robert Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100001 Israel.
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23
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Nagegowda DA, Gupta P. Advances in biosynthesis, regulation, and metabolic engineering of plant specialized terpenoids. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 294:110457. [PMID: 32234216 DOI: 10.1016/j.plantsci.2020.110457] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 02/18/2020] [Accepted: 02/22/2020] [Indexed: 05/28/2023]
Abstract
Plant specialized terpenoids are natural products that have no obvious role in growth and development, but play many important functional roles to improve the plant's overall fitness. Besides, plant specialized terpenoids have immense value to humans due to their applications in fragrance, flavor, cosmetic, and biofuel industries. Understanding the fundamental aspects involved in the biosynthesis and regulation of these high-value molecules in plants not only paves the path to enhance plant traits, but also facilitates homologous or heterologous engineering for overproduction of target molecules of importance. Recent developments in functional genomics and high-throughput analytical techniques have led to unraveling of several novel aspects involved in the biosynthesis and regulation of plant specialized terpenoids. The knowledge thus derived has been successfully utilized to produce target specialized terpenoids of plant origin in homologous or heterologous host systems by metabolic engineering and synthetic biology approaches. Here, we provide an overview and highlights on advances related to the biosynthetic steps, regulation, and metabolic engineering of plant specialized terpenoids.
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Affiliation(s)
- Dinesh A Nagegowda
- Molecular Plant Biology and Biotechnology Lab, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, 560065, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India.
| | - Priyanka Gupta
- Molecular Plant Biology and Biotechnology Lab, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, 560065, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India
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24
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Lin CY, Eudes A. Strategies for the production of biochemicals in bioenergy crops. BIOTECHNOLOGY FOR BIOFUELS 2020; 13:71. [PMID: 32318116 PMCID: PMC7158082 DOI: 10.1186/s13068-020-01707-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/02/2020] [Indexed: 05/12/2023]
Abstract
Industrial crops are grown to produce goods for manufacturing. Rather than food and feed, they supply raw materials for making biofuels, pharmaceuticals, and specialty chemicals, as well as feedstocks for fabricating fiber, biopolymer, and construction materials. Therefore, such crops offer the potential to reduce our dependency on petrochemicals that currently serve as building blocks for manufacturing the majority of our industrial and consumer products. In this review, we are providing examples of metabolites synthesized in plants that can be used as bio-based platform chemicals for partial replacement of their petroleum-derived counterparts. Plant metabolic engineering approaches aiming at increasing the content of these metabolites in biomass are presented. In particular, we emphasize on recent advances in the manipulation of the shikimate and isoprenoid biosynthetic pathways, both of which being the source of multiple valuable compounds. Implementing and optimizing engineered metabolic pathways for accumulation of coproducts in bioenergy crops may represent a valuable option for enhancing the commercial value of biomass and attaining sustainable lignocellulosic biorefineries.
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Affiliation(s)
- Chien-Yuan Lin
- Joint BioEnergy Institute, Emeryville, CA 94608 USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Aymerick Eudes
- Joint BioEnergy Institute, Emeryville, CA 94608 USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
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25
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Wang X, Zeng L, Liao Y, Li J, Tang J, Yang Z. Formation of α-Farnesene in Tea ( Camellia sinensis) Leaves Induced by Herbivore-Derived Wounding and Its Effect on Neighboring Tea Plants. Int J Mol Sci 2019; 20:ijms20174151. [PMID: 31450700 PMCID: PMC6747315 DOI: 10.3390/ijms20174151] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/21/2019] [Accepted: 08/22/2019] [Indexed: 01/24/2023] Open
Abstract
Herbivore-induced plant volatiles (HIPVs) play important ecological roles in defense against stresses. In contrast to model plants, reports on HIPV formation and function in crops are limited. Tea (Camellia sinensis) is an important crop in China. α-Farnesene is a common HIPV produced in tea plants in response to different herbivore attacks. In this study, a C. sinensis α-farnesene synthase (CsAFS) was isolated, cloned, sequenced, and functionally characterized. The CsAFS recombinant protein produced in Escherichia coli was able to transform farnesyl diphosphate (FPP) into α-farnesene and also convert geranyl diphosphate (GPP) to β-ocimene in vitro. Furthermore, transient expression analysis in Nicotiana benthamiana plants indicated that CsAFS was located in the cytoplasm and could convert FPP to α-farnesene in plants. Wounding, to simulate herbivore damage, activated jasmonic acid (JA) formation, which significantly enhanced the CsAFS expression level and α-farnesene content. This suggested that herbivore-derived wounding induced α-farnesene formation in tea leaves. Furthermore, the emitted α-farnesene might act as a signal to activate antibacterial-related factors in neighboring undamaged tea leaves. This research advances our understanding of the formation and signaling roles of common HIPVs in crops such as tea plants.
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Affiliation(s)
- Xuewen 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, Xingke Road 723, Tianhe District, Guangzhou 510650, China
- University of Chinese Academy of Sciences, Yuquan Road 19A, Beijing 100049, China
| | - Lanting Zeng
- 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, Xingke Road 723, Tianhe District, Guangzhou 510650, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou 510650, China
| | - Yinyin Liao
- 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, Xingke Road 723, Tianhe District, Guangzhou 510650, China
- University of Chinese Academy of Sciences, Yuquan Road 19A, Beijing 100049, China
| | - Jianlong Li
- Tea Research Institute, Guangdong Academy of Agricultural Sciences & Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Dafeng Road 6, Tianhe District, Guangzhou 510640, China
| | - Jinchi Tang
- Tea Research Institute, Guangdong Academy of Agricultural Sciences & Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Dafeng Road 6, Tianhe District, Guangzhou 510640, China
| | - Ziyin Yang
- 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, Xingke Road 723, Tianhe District, Guangzhou 510650, China.
- University of Chinese Academy of Sciences, Yuquan Road 19A, Beijing 100049, China.
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou 510650, China.
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26
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Pinheiro TT, Peres LEP, Purgatto E, Latado RR, Maniero RA, Martins MM, Figueira A. Citrus carotenoid isomerase gene characterization by complementation of the "Micro-Tom" tangerine mutant. PLANT CELL REPORTS 2019; 38:623-636. [PMID: 30737538 DOI: 10.1007/s00299-019-02393-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 02/02/2019] [Indexed: 05/22/2023]
Abstract
Complementation of the "Micro-Tom" tomato tangerine mutant with a Citrus CRTISO allele restores the wild-type fruit carotenoid profile, indicating that the Citrus allele encodes an authentic functional carotenoid isomerase. Citrus fruits are rich in carotenoids; the genus offers a large diversity in composition, yet to be fully explored to improve fruit nutritional quality. As perennial tree species, Citrus lack the resources for functional genetic studies, requiring the use of model plant systems. Here, we used the "Micro-Tom" (MT) tomato carrying the tangerine mutation (t), deficient for the carotenoid isomerase (CRTISO) gene, to functionally characterize the homologous C. sinensis genes. We identified four putative loci in the C. sinensis genome, named CsCRTISO, CsCRTISO-Like 1, CsCRTISO-Like 2, and CsCRTISO-Like 2B, with the latter as a presumed duplication of CRTISO-Like 2. In general, all the Citrus paralogs showed less expression specialization than the tomato ones, with CsCRTISO being the most expressed gene in all tissues analyzed. MT-t plants were successfully complemented with the CsCRTISO, and fruits showed a carotenoid profile similar to the control, indicating that the Citrus allele indeed encodes an authentic functional carotenoid isomerase and that the signal peptide is functional in tomato. MT was silenced using an inverted repeat of a fragment from the Citrus CRTISO resulting in a stronger phenotype than MT-t. MT-t and MT silenced for CRTISO presented an overall decrease in transcript accumulation of all genes from the biosynthesis pathway. The expression of the Citrus CRTISO gene is able to restore the biosynthesis of carotenoids with the appropriate regulation in MT-t. The decrease in transcript accumulation in MT-t and MT-CRTISO-suppressed lines reinforces previous suggestions that transcriptional regulation of the carotenoid biosynthesis involves regulatory loops by intermediate products.
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Affiliation(s)
- Thaísa T Pinheiro
- Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Av. Centenário 303, CP 96, Piracicaba, SP, 13400-970, Brazil
| | - Lázaro E P Peres
- Escola Superior de Agricultura "Luiz de Queiroz", Departamento de Ciências Biológicas, Universidade de São Paulo, Av. Pádua Dias 11, CP 09, Piracicaba, SP, 13418-900, Brazil
| | - Eduardo Purgatto
- Departamento de Alimentos e Nutrição Experimental, Food Research Center (FoRC), Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Av. Professor Lineu Prestes 580, Bloco 14, São Paulo, SP, 05508-000, Brazil
| | - Rodrigo R Latado
- Centro APTA Citros "Sylvio Moreira", Instituto Agronômico, Rodovia Anhanguera, km 158, CP 04, Cordeirópolis, SP, 13490-970, Brazil
| | - Rodolfo A Maniero
- Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Av. Centenário 303, CP 96, Piracicaba, SP, 13400-970, Brazil
| | - Mônica M Martins
- Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Av. Centenário 303, CP 96, Piracicaba, SP, 13400-970, Brazil
| | - Antonio Figueira
- Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Av. Centenário 303, CP 96, Piracicaba, SP, 13400-970, Brazil.
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Kumar Y, Khan F, Rastogi S, Shasany AK. Genome-wide detection of terpene synthase genes in holy basil (Ocimum sanctum L.). PLoS One 2018; 13:e0207097. [PMID: 30444870 PMCID: PMC6239295 DOI: 10.1371/journal.pone.0207097] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 10/24/2018] [Indexed: 11/19/2022] Open
Abstract
Holy basil (Ocimum sanctum L.) and sweet basil (Ocimum basilicum L.) are the most commonly grown basil species in India for essential oil production and biosynthesis of potentially volatile and non-volatile phytomolecules with commercial significance. The aroma, flavor and pharmaceutical value of Ocimum species is a significance of its essential oil, which contains most of the monoterpenes and sesquiterpenes. A large number of plants have been studied for characterization and identification of terpene synthase genes, involved in terpenoids biosynthesis. The goal of this study is to discover and identify the putative functional terpene synthase genes in O. sanctum. HMMER search was performed by using a set of 13 well sequenced and annotated plant genomes including the newly sequenced genome of O. sanctum with Pfam-A database locally, using HMMER 3.0 hmmsearch for the two Pfam domains (PF01397 and PF03936). Using this search method 81 putative terpene synthases genes (OsaTPS) were identified in O. sanctum; the study further reveals 47 OsaTPS were putatively functional genes, 19 partial OsaTPS, and 15 OsaTPS as probably pseudogenes. All these identified OsaTPS genes were compared with other plant species, and phylogenetic analysis reveals the subfamily classification of OsaTPS in TPS-a, -b, -c, -e, -f and TPS-g subfamilies clusters. This genome-wide identification of OsaTPS genes, their phylogenetic analysis and secondary metabolite pathway mapping predictions together provide a comprehensive understanding of the TPS gene family in Ocimum sanctum and offer opportunities for the characterization and functional validation of numbers of terpene synthase genes.
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Affiliation(s)
- Yogesh Kumar
- Metabolic and Structural Biology Dept, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow (U.P.), INDIA
| | - Feroz Khan
- Metabolic and Structural Biology Dept, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow (U.P.), INDIA
- * E-mail:
| | - Shubhra Rastogi
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow (U.P.), INDIA
| | - Ajit Kumar Shasany
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow (U.P.), INDIA
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28
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Chen X, Chen H, Yuan JS, Köllner TG, Chen Y, Guo Y, Zhuang X, Chen X, Zhang Y, Fu J, Nebenführ A, Guo Z, Chen F. The rice terpene synthase gene OsTPS19 functions as an (S)-limonene synthase in planta, and its overexpression leads to enhanced resistance to the blast fungus Magnaporthe oryzae. PLANT BIOTECHNOLOGY JOURNAL 2018; 16:1778-1787. [PMID: 29509987 PMCID: PMC6131416 DOI: 10.1111/pbi.12914] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 02/11/2018] [Accepted: 02/24/2018] [Indexed: 05/07/2023]
Abstract
Rice blast disease, caused by the fungus Magnaporthe oryzae, is the most devastating disease of rice. In our ongoing characterization of the defence mechanisms of rice plants against M. oryzae, a terpene synthase gene OsTPS19 was identified as a candidate defence gene. Here, we report the functional characterization of OsTPS19, which is up-regulated by M. oryzae infection. Overexpression of OsTPS19 in rice plants enhanced resistance against M. oryzae, while OsTPS19 RNAi lines were more susceptible to the pathogen. Metabolic analysis revealed that the production of a monoterpene (S)-limonene was increased and decreased in OsTPS19 overexpression and RNAi lines, respectively, suggesting that OsTPS19 functions as a limonene synthase in planta. This notion was further supported by in vitro enzyme assays with recombinant OsTPS19, in which OsTPS19 had both sesquiterpene activity and monoterpene synthase activity, with limonene as a major product. Furthermore, in a subcellular localization experiment, OsTPS19 was localized in plastids. OsTPS19 has a highly homologous paralog, OsTPS20, which likely resulted from a recent gene duplication event. We found that the variation in OsTPS19 and OsTPS20 enzyme activities was determined by a single amino acid in the active site cavity. The expression of OsTPS20 was not affected by M. oryzae infection. This indicates functional divergence of OsTPS19 and OsTPS20. Lastly, (S)-limonene inhibited the germination of M. oryzae spores in vitro. OsTPS19 was determined to function as an (S)-limonene synthase in rice and plays a role in defence against M. oryzae, at least partly, by inhibiting spore germination.
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Affiliation(s)
- Xujun Chen
- Key Laboratory of Plant PathologyDepartment of Plant PathologyChina Agricultural UniversityBeijingChina
| | - Hao Chen
- Department of Plant SciencesUniversity of TennesseeKnoxvilleTNUSA
| | - Joshua S. Yuan
- Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTXUSA
| | | | - Yuying Chen
- Key Laboratory of Plant PathologyDepartment of Plant PathologyChina Agricultural UniversityBeijingChina
| | - Yufen Guo
- Key Laboratory of Plant PathologyDepartment of Plant PathologyChina Agricultural UniversityBeijingChina
| | - Xiaofeng Zhuang
- Department of Plant SciencesUniversity of TennesseeKnoxvilleTNUSA
| | - Xinlu Chen
- Department of Plant SciencesUniversity of TennesseeKnoxvilleTNUSA
| | - Yong‐jun Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant ProtectionChinese Academy of Agricultural SciencesBeijingChina
| | - Jianyu Fu
- Tea Research InstituteChinese Academy of Agricultural SciencesHangzhouChina
| | - Andreas Nebenführ
- Department of Biochemistry and Cellular and Molecular BiologyUniversity of TennesseeKnoxvilleTNUSA
| | - Zejian Guo
- Key Laboratory of Plant PathologyDepartment of Plant PathologyChina Agricultural UniversityBeijingChina
| | - Feng Chen
- Department of Plant SciencesUniversity of TennesseeKnoxvilleTNUSA
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29
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Alemdar S, König JC, Seidel K, Kirschning A, Scheper T, Beutel S. Substrate specificity of α-humulene synthase from Zingiber zerumbet
Smith and determination of kinetic constants by a spectrophotometric assay. Eng Life Sci 2018; 18:654-658. [DOI: 10.1002/elsc.201800019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/10/2018] [Accepted: 05/24/2018] [Indexed: 11/08/2022] Open
Affiliation(s)
- Semra Alemdar
- Institute of Technical Chemistry; Leibniz Universität Hannover; Hannover Germany
| | - Jan Christoph König
- Institute of Technical Chemistry; Leibniz Universität Hannover; Hannover Germany
| | - Katja Seidel
- Institute of Organic Chemistry; Leibniz Universität Hannover; Hannover Germany
| | - Andreas Kirschning
- Institute of Organic Chemistry; Leibniz Universität Hannover; Hannover Germany
| | - Thomas Scheper
- Institute of Technical Chemistry; Leibniz Universität Hannover; Hannover Germany
| | - Sascha Beutel
- Institute of Technical Chemistry; Leibniz Universität Hannover; Hannover Germany
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30
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Gao F, Liu B, Li M, Gao X, Fang Q, Liu C, Ding H, Wang L, Gao X. Identification and characterization of terpene synthase genes accounting for volatile terpene emissions in flowers of Freesia x hybrida. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:4249-4265. [PMID: 29901784 PMCID: PMC6093421 DOI: 10.1093/jxb/ery224] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 06/06/2017] [Indexed: 05/19/2023]
Abstract
The development of flower scents was a crucial event in biological evolution, providing olfactory signals by which plants can attract pollinators. In this study, bioinformatics, metabolomics, and biochemical and molecular methodologies were integrated to investigate the candidate genes involved in the biosynthesis of volatile components in two cultivars of Freesia x hybrida, Red River® and Ambiance, which release different categories of compounds. We found that terpene synthase (TPS) genes were the pivotal genes determining spatiotemporal release of volatile compounds in both cultivars. Eight FhTPS genes were isolated and six were found to be functional: FhTPS1 was a single-product enzyme catalyzing the formation of linalool, whereas the other four FhTPS proteins were multi-product enzymes, among which FhTPS4, FhTPS6, and FhTPS7 could recognize geranyl diphosphate and farnesyl diphosphate simultaneously. The FhTPS enzymatic products closely matched the volatile terpenes emitted from flowers, and significant correlations were found between release of volatile terpenes and FhTPS gene expression. Graphical models based on these results are proposed that summarize the biosynthesis of Freesia floral volatile terpenes. The characterization of FhTPS genes paves the way to decipher their roles in the speciation and fitness of Freesia, and this knowledge could also be used to introduce or enhance scent in other plants.
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Affiliation(s)
- Fengzhan Gao
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Baofeng Liu
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Min Li
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Xiaoyan Gao
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Qiang Fang
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Chang Liu
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Hui Ding
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
| | - Li Wang
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
- Correspondence: or
| | - Xiang Gao
- Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics & Cytology, Northeast Normal University, Changchun, China
- Correspondence: or
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31
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Gonda I, Davidovich-Rikanati R, Bar E, Lev S, Jhirad P, Meshulam Y, Wissotsky G, Portnoy V, Burger J, Schaffer AA, Tadmor Y, Giovannoni JJ, Fei Z, Fait A, Katzir N, Lewinsohn E. Differential metabolism of L-phenylalanine in the formation of aromatic volatiles in melon (Cucumis melo L.) fruit. PHYTOCHEMISTRY 2018; 148:122-131. [PMID: 29448137 DOI: 10.1016/j.phytochem.2017.12.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/21/2017] [Accepted: 12/23/2017] [Indexed: 05/23/2023]
Abstract
Studies on the active pathways and the genes involved in the biosynthesis of L-phenylalanine-derived volatiles in fleshy fruits are sparse. Melon fruit rinds converted stable-isotope labeled L-phe into more than 20 volatiles. Phenylpropanes, phenylpropenes and benzenoids are apparently produced via the well-known phenylpropanoid pathway involving phenylalanine ammonia lyase (PAL) and being (E)-cinnamic acid a key intermediate. Phenethyl derivatives seemed to be derived from L-phe via a separate biosynthetic route not involving (E)-cinnamic acid and PAL. To explore for a biosynthetic route to (E)-cinnamaldehyde in melon rinds, soluble protein cell-free extracts were assayed with (E)-cinnamic acid, CoA, ATP, NADPH and MgSO4, producing (E)-cinnamaldehyde in vitro. In this context, we characterized CmCNL, a gene encoding for (E)-cinnamic acid:coenzyme A ligase, inferred to be involved in the biosynthesis of (E)-cinnamaldehyde. Additionally we describe CmBAMT, a SABATH gene family member encoding a benzoic acid:S-adenosyl-L-methionine carboxyl methyltransferase having a role in the accumulation of methyl benzoate. Our approach leads to a more comprehensive understanding of L-phe metabolism into aromatic volatiles in melon fruit.
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Affiliation(s)
- Itay Gonda
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel; The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Rachel Davidovich-Rikanati
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Einat Bar
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Shery Lev
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Pliaa Jhirad
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel; ORT Braude College, Department of Biotechnology Engineering, Karmiel, Israel
| | - Yuval Meshulam
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel; ORT Braude College, Department of Biotechnology Engineering, Karmiel, Israel
| | - Guy Wissotsky
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Vitaly Portnoy
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Joseph Burger
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Arthur A Schaffer
- Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, P.O. Box 6, Rishon LeZion, 76100, Israel
| | - Yaakov Tadmor
- The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - James J Giovannoni
- Boyce Thompson Institute, Cornell University, Ithaca, NY 14853, USA; USDA-ARS Robert W. Holley Center for Agriculture and Health, Ithaca, NY 14853, USA
| | - Zhangjun Fei
- Boyce Thompson Institute, Cornell University, Ithaca, NY 14853, USA; USDA-ARS Robert W. Holley Center for Agriculture and Health, Ithaca, NY 14853, USA
| | - Aaron Fait
- The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Nurit Katzir
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Efraim Lewinsohn
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel.
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32
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Liu GF, Liu JJ, He ZR, Wang FM, Yang H, Yan YF, Gao MJ, Gruber MY, Wan XC, Wei S. Implementation of CsLIS/NES in linalool biosynthesis involves transcript splicing regulation in Camellia sinensis. PLANT, CELL & ENVIRONMENT 2018; 41:176-186. [PMID: 28963730 DOI: 10.1111/pce.13080] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 09/20/2017] [Accepted: 09/21/2017] [Indexed: 05/24/2023]
Abstract
Volatile terpenoids produced in tea plants (Camellia sinensis) are airborne signals interacting against other ecosystem members, but also pleasant odorants of tea products. Transcription regulation (including transcript processing) is pivotal for plant volatile terpenoid production. In this study, a terpene synthase gene CsLIS/NES was recovered from tea plants (C. sinensis cv. "Long-Men Xiang"). CsLIS/NES transcription regulation resulted in 2 splicing forms: CsLIS/NES-1 and CsLIS/NES-2 lacking a 305 bp-fragment at N-terminus, both producing (E)-nerolidol and linalool in vitro. Transgenic tobacco studies and a gene-specific antisense oligo-deoxynucleotide suppression applied in tea leaves indicated that CsLIS/NES-1, localized in chloroplasts, acted as linalool synthase, whereas CsLIS/NES-2 localized in cytosol, functioned as a potential nerolidol synthase, but not linalool synthase. Expression patterns of the 2 transcript isoforms in tea were distinctly different and responded differentially to the application of stress signal molecule methyl jasmonate. Leaf expression of CsLIS/NES-1, but not CsLIS/NES-2, was significantly induced by methyl jasmonate. Our data indicated that distinct transcript splicing regulation patterns, together with subcellular compartmentation of CsLIS/NE-1 and CsLIS/NE-2 implemented the linalool biosynthesis regulation in tea plants in responding to endogenous and exogenous regulatory factors.
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Affiliation(s)
- Guo-Feng Liu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Jing-Jing Liu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Zhi-Rong He
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Fu-Min Wang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Hua Yang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Yi-Feng Yan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Ming-Jun Gao
- Agriculture and Agri-Food Canada, Saskatoon Research Center, Saskatoon, Saskatchewan, S7N 0X2, Canada
| | - Margaret Y Gruber
- Agriculture and Agri-Food Canada, Saskatoon Research Center, Saskatoon, Saskatchewan, S7N 0X2, Canada
| | - Xiao-Chun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, 230036, China
| | - Shu Wei
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, Anhui, 230036, China
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33
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Hattan JI, Shindo K, Sasaki T, Misawa N. Isolation and Functional Characterization of New Terpene Synthase Genes from Traditional Edible Plants. J Oleo Sci 2018; 67:1235-1246. [DOI: 10.5650/jos.ess18163] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jun-ichiro Hattan
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University
| | | | | | - Norihiko Misawa
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University
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34
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Abbas F, Ke Y, Yu R, Yue Y, Amanullah S, Jahangir MM, Fan Y. Volatile terpenoids: multiple functions, biosynthesis, modulation and manipulation by genetic engineering. PLANTA 2017; 246:803-816. [PMID: 28803364 DOI: 10.1007/s00425-017-2749-x] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 07/22/2017] [Indexed: 05/18/2023]
Abstract
Terpenoids play several physiological and ecological functions in plant life through direct and indirect plant defenses and also in human society because of their enormous applications in the pharmaceutical, food and cosmetics industries. Through the aid of genetic engineering its role can by magnified to broad spectrum by improving genetic ability of crop plants, enhancing the aroma quality of fruits and flowers and the production of pharmaceutical terpenoids contents in medicinal plants. Terpenoids are structurally diverse and the most abundant plant secondary metabolites, playing an important role in plant life through direct and indirect plant defenses, by attracting pollinators and through different interactions between the plants and their environment. Terpenoids are also significant because of their enormous applications in the pharmaceutical, food and cosmetics industries. Due to their broad distribution and functional versatility, efforts are being made to decode the biosynthetic pathways and comprehend the regulatory mechanisms of terpenoids. This review summarizes the recent advances in biosynthetic pathways, including the spatiotemporal, transcriptional and post-transcriptional regulatory mechanisms. Moreover, we discuss the multiple functions of the terpene synthase genes (TPS), their interaction with the surrounding environment and the use of genetic engineering for terpenoid production in model plants. Here, we also provide an overview of the significance of terpenoid metabolic engineering in crop protection, plant reproduction and plant metabolic engineering approaches for pharmaceutical terpenoids production and future scenarios in agriculture, which call for sustainable production platforms by improving different plant traits.
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Affiliation(s)
- Farhat Abbas
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Yanguo Ke
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Rangcai Yu
- College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China.
| | - Yuechong Yue
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Sikandar Amanullah
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, Heilongjiang, China
| | | | - Yanping Fan
- The Research Center for Ornamental Plants, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China.
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou, 510642, China.
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35
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Kumar R, Bohra A, Pandey AK, Pandey MK, Kumar A. Metabolomics for Plant Improvement: Status and Prospects. FRONTIERS IN PLANT SCIENCE 2017; 8:1302. [PMID: 28824660 PMCID: PMC5545584 DOI: 10.3389/fpls.2017.01302] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 07/11/2017] [Indexed: 05/12/2023]
Abstract
Post-genomics era has witnessed the development of cutting-edge technologies that have offered cost-efficient and high-throughput ways for molecular characterization of the function of a cell or organism. Large-scale metabolite profiling assays have allowed researchers to access the global data sets of metabolites and the corresponding metabolic pathways in an unprecedented way. Recent efforts in metabolomics have been directed to improve the quality along with a major focus on yield related traits. Importantly, an integration of metabolomics with other approaches such as quantitative genetics, transcriptomics and genetic modification has established its immense relevance to plant improvement. An effective combination of these modern approaches guides researchers to pinpoint the functional gene(s) and the characterization of massive metabolites, in order to prioritize the candidate genes for downstream analyses and ultimately, offering trait specific markers to improve commercially important traits. This in turn will improve the ability of a plant breeder by allowing him to make more informed decisions. Given this, the present review captures the significant leads gained in the past decade in the field of plant metabolomics accompanied by a brief discussion on the current contribution and the future scope of metabolomics to accelerate plant improvement.
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Affiliation(s)
- Rakesh Kumar
- Department of Plant Sciences, University of Hyderabad (UoH)Hyderabad, India
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)Hyderabad, India
| | - Abhishek Bohra
- Crop Improvement Division, Indian Institute of Pulses Research (IIPR)Kanpur, India
| | - Arun K. Pandey
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)Hyderabad, India
| | - Manish K. Pandey
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)Hyderabad, India
| | - Anirudh Kumar
- Department of Botany, Indira Gandhi National Tribal University (IGNTU)Amarkantak, India
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36
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Oliva M, Bar E, Ovadia R, Perl A, Galili G, Lewinsohn E, Oren-Shamir M. Phenylpyruvate Contributes to the Synthesis of Fragrant Benzenoid-Phenylpropanoids in Petunia × hybrida Flowers. FRONTIERS IN PLANT SCIENCE 2017; 8:769. [PMID: 28553303 PMCID: PMC5427144 DOI: 10.3389/fpls.2017.00769] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/24/2017] [Indexed: 05/25/2023]
Abstract
Phenylalanine (Phe) is a precursor for a large group of plant specialized metabolites, including the fragrant volatile benzenoid-phenylpropanoids (BPs). In plants, the main pathway leading to production of Phe is via arogenate, while the pathway via phenylpyruvate (PPY) is considered merely an alternative route. Unlike plants, in most microorganisms the only pathway leading to the synthesis of Phe is via PPY. Here we studied the effect of increased PPY production in petunia on the formation of BPs volatiles and other specialized metabolites originating from Phe both in flowers and leaves. Stimulation of the pathway via PPY was achieved by transforming petunia with PheA∗ , a gene encoding a bacterial feedback insensitive bi-functional chorismate mutase/prephenate dehydratase enzyme. PheA∗ overexpression caused dramatic increase in the levels of flower BP volatiles such as phenylacetaldehyde, benzaldehyde, benzyl acetate, vanillin, and eugenol. All three BP pathways characterized in petunia flowers were stimulated in PheA∗ flowers. In contrast, PheA∗ overexpression had only a minor effect on the levels of amino acids and non-volatile metabolites both in the leaves and flowers. The one exception is a dramatic increase in the level of rosmarinate, a conjugate between Phe-derived caffeate and Tyr-derived 3,4-dihydroxyphenylacetate, in PheA∗ leaves. PheA∗ petunia flowers may serve as an excellent system for revealing the role of PPY in the production of BPs, including possible routes directly converting PPY to the fragrant volatiles. This study emphasizes the potential of the PPY route in achieving fragrance enhancement in flowering plants.
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Affiliation(s)
- Moran Oliva
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, Volcani CenterRishon LeZion, Israel
- Department of Plant Sciences, The Weizmann Institute of ScienceRehovot, Israel
| | - Einat Bar
- Department of Vegetable Crops, Newe Ya’ar Research Center, Agricultural Research OrganizationRamat Yishay, Israel
| | - Rinat Ovadia
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, Volcani CenterRishon LeZion, Israel
| | - Avichai Perl
- Department of Fruit Tree Science, Agricultural Research Organization, Volcani CenterRishon LeZion, Israel
| | - Gad Galili
- Department of Plant Sciences, The Weizmann Institute of ScienceRehovot, Israel
| | - Efraim Lewinsohn
- Department of Vegetable Crops, Newe Ya’ar Research Center, Agricultural Research OrganizationRamat Yishay, Israel
| | - Michal Oren-Shamir
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, Volcani CenterRishon LeZion, Israel
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Clancy MV, Zytynska SE, Senft M, Weisser WW, Schnitzler JP. Chemotypic variation in terpenes emitted from storage pools influences early aphid colonisation on tansy. Sci Rep 2016; 6:38087. [PMID: 27892539 PMCID: PMC5125103 DOI: 10.1038/srep38087] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 11/03/2016] [Indexed: 02/01/2023] Open
Abstract
Tansy plants (Tanacetum vulgare L.) exhibit high chemical variation, particularly in mono- and sesquiterpenes that are stored in specialised glands on the plant surface. In the present work we investigated the effects of terpene chemotypes on Metopeurum fuscoviride, an aphid species specialised on tansy, and their tending ants, at the field scale. Previous studies have chemotyped tansy by assessing dominant compounds; here we propose a method of chemotyping using all volatile compounds that are likely emitted from the storage glands. The analysis is based on two extraction methods: GC-MS analysis of leaf hexane extracts and SBSE analysis of headspace emissions. In an initial screening we identified the subset of compounds present in both chemical patterns, labelled as ‘compounds likely emitted from storage’. In a large field survey we could show that the putative chemotypic emission pattern from storage pools significantly affected the early aphid colonisation of tansy. Moreover, the statistical analyses revealed that minor compounds exerted a stronger influence on aphid and tending-ant presence than dominant compounds. Overall we demonstrated that within the enormous chemotypic variation of terpenes in tansy plants, chemical signatures of volatile terpenes can be related to the occurrence of insects on individual plants in the field.
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Affiliation(s)
- Mary V Clancy
- Helmholtz Zentrum München, Institute of Biochemical Plant Pathology, Research Unit Environmental Simulation (EUS), Neuherberg, Germany
| | - Sharon E Zytynska
- Technische Universität München, Terrestrial Ecology Research Group, Department of Ecology and Ecosystem Management, School of Life Sciences Weihenstephan, Freising, Germany
| | - Matthias Senft
- Technische Universität München, Terrestrial Ecology Research Group, Department of Ecology and Ecosystem Management, School of Life Sciences Weihenstephan, Freising, Germany
| | - Wolfgang W Weisser
- Technische Universität München, Terrestrial Ecology Research Group, Department of Ecology and Ecosystem Management, School of Life Sciences Weihenstephan, Freising, Germany
| | - Jörg-Peter Schnitzler
- Helmholtz Zentrum München, Institute of Biochemical Plant Pathology, Research Unit Environmental Simulation (EUS), Neuherberg, Germany
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Pankratov I, McQuinn R, Schwartz J, Bar E, Fei Z, Lewinsohn E, Zamir D, Giovannoni JJ, Hirschberg J. Fruit carotenoid-deficient mutants in tomato reveal a function of the plastidial isopentenyl diphosphate isomerase (IDI1) in carotenoid biosynthesis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2016; 88:82-94. [PMID: 27288653 DOI: 10.1111/tpj.13232] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 05/24/2016] [Accepted: 06/02/2016] [Indexed: 05/28/2023]
Abstract
Isoprenoids consist of a large class of compounds that are present in all living organisms. They are derived from the 5C building blocks isopentenyl diphosphate (IDP) and its isomer dimethylallyl diphosphate (DMADP). In plants, IDP is synthesized in the cytoplasm from mevalonic acid via the MVA pathway, and in plastids from 2-C-methyl-d-erythritol-4-phosphate through the MEP pathway. The enzyme IDP isomerase (IDI) catalyzes the interconversion between IDP and DMADP. Most plants contain two IDI enzymes, the functions of which are characteristically compartmentalized in the cells. Carotenoids are isoprenoids that play essential roles in photosynthesis and provide colors to flowers and fruits. They are synthesized in the plastids via the MEP pathway. Fruits of Solanum lycopersicum (tomato) accumulate high levels of the red carotene lycopene. We have identified mutations in tomato that reduce overall carotenoid accumulation in fruits. Four alleles of a locus named FRUIT CAROTENOID DEFICIENT 1 (fcd1) were characterized. Map-based cloning of fcd1 indicated that this gene encodes the plastidial enzyme IDI1. Lack of IDI1 reduced the concentration of carotenoids in fruits, flowers and cotyledons, but not in mature leaves. These results indicate that the plastidial IDI plays an important function in carotenoid biosynthesis, thus highlighting its role in optimizing the ratio between IDP and DMADP as precursors for different downstream isoprenoid pathways.
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Affiliation(s)
- Ilya Pankratov
- Department of Genetics, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Ryan McQuinn
- Boyce Thompson Institute for Plant Research, Tower Rd, Ithaca, NY, 14853, USA
- U.S. Department of Agriculture-Agricultural Research Service, Robert W. Holley Center for Agriculture and Health, Cornell University, Ithaca, NY, 14853, USA
| | - Jochanan Schwartz
- Department of Genetics, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Einat Bar
- Institute of Field and Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, Israel
| | - Zhangjun Fei
- Boyce Thompson Institute for Plant Research, Tower Rd, Ithaca, NY, 14853, USA
| | - Efraim Lewinsohn
- Institute of Field and Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, P.O. Box 1021, Ramat Yishay, Israel
| | - Dani Zamir
- Robert H. Smith Institute of Plant Sciences and Genetics, Faculty of Agriculture, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - James J Giovannoni
- Boyce Thompson Institute for Plant Research, Tower Rd, Ithaca, NY, 14853, USA
- U.S. Department of Agriculture-Agricultural Research Service, Robert W. Holley Center for Agriculture and Health, Cornell University, Ithaca, NY, 14853, USA
| | - Joseph Hirschberg
- Department of Genetics, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel.
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Yoon SJ, Sukweenadhi J, Khorolragchaa A, Mathiyalagan R, Subramaniyam S, Kim YJ, Kim HB, Kim MJ, Kim YJ, Yang DC. Overexpression of Panax ginseng sesquiterpene synthase gene confers tolerance against Pseudomonas syringae pv. tomato in Arabidopsis thaliana. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2016; 22:485-495. [PMID: 27924121 PMCID: PMC5120041 DOI: 10.1007/s12298-016-0384-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/30/2016] [Accepted: 10/03/2016] [Indexed: 06/06/2023]
Abstract
Sesquiterpenes are an abundant group belonging to the terpenoid family, with a C15 structure comprise of three isoprene units. Many sesquiterpenes are volatile compounds and it act as chemical messenger in plant signalling, particularly in the defense mechanism against biotic and abiotic stresses. Panax ginseng Meyer is important medicinal herbs with various reported pharmacological efficacies in which its triterpenoid saponins, called ginsenosides, were mostly studied. However, there have been few studies on volatile sesquiterpenes compounds regulation on P. ginseng. As slow-growing perennial plant, P. ginseng received many kind of stresses during its cultivation. The pathogen attack is one of the most devastated perturbation for ginseng yield. Thus, we aimed to analyze P. ginseng STS gene (PgSTS) expressions in ginseng organs as well as mono-, sesquiterpenes contents from ginseng seedlings treated with elicitors. qRT-PCR and GC-MS analysis showed that two elicitors- salicylic acid (SA) and methyl jasmonate (MeJA) triggered PgSTS expression at different time points and significantly induced mono-, sesquiterpene yield. Overexpression of PgSTS in Arabidopsis also induced high terpene content and conferred tolerance against Pseudomonas syringae pv. tomato infection. These results suggested that PgSTS transcripts are involved in terpenoid biosynthesis in response to environmental stress mediated by MeJA and SA elicitors; thus, generate tolerance against pathogen attack.
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Affiliation(s)
- Sung-Joo Yoon
- Department of Oriental Medicinal Biotechnology, College of Life Science, Kyung Hee University, Yongin, 449-701 Korea
| | - Johan Sukweenadhi
- Graduate School of Biotechnology, College of Life Science, Kyung Hee University, Yongin, 446- 701 Korea
| | - Altanzul Khorolragchaa
- Department of Oriental Medicinal Biotechnology, College of Life Science, Kyung Hee University, Yongin, 449-701 Korea
| | - Ramya Mathiyalagan
- Graduate School of Biotechnology, College of Life Science, Kyung Hee University, Yongin, 446- 701 Korea
| | - Sathiyamoorthy Subramaniyam
- Department of Oriental Medicinal Biotechnology, College of Life Science, Kyung Hee University, Yongin, 449-701 Korea
| | - Yeon-Ju Kim
- Department of Oriental Medicinal Biotechnology, College of Life Science, Kyung Hee University, Yongin, 449-701 Korea
| | - Ho-Bin Kim
- Woongjin Foods Co., Ltd., JEI-PLATZ, 186, Gasan Digital 1-ro, Room 201, Gemcheon-gu, Seoul, 153-792 Korea
| | - Mi-Jung Kim
- Woongjin Foods Co., Ltd., JEI-PLATZ, 186, Gasan Digital 1-ro, Room 201, Gemcheon-gu, Seoul, 153-792 Korea
| | - Yu-Jin Kim
- Department of Oriental Medicinal Biotechnology, College of Life Science, Kyung Hee University, Yongin, 449-701 Korea
| | - Deok-Chun Yang
- Department of Oriental Medicinal Biotechnology, College of Life Science, Kyung Hee University, Yongin, 449-701 Korea
- Graduate School of Biotechnology, College of Life Science, Kyung Hee University, Yongin, 446- 701 Korea
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Sun P, Schuurink RC, Caissard JC, Hugueney P, Baudino S. My Way: Noncanonical Biosynthesis Pathways for Plant Volatiles. TRENDS IN PLANT SCIENCE 2016; 21:884-894. [PMID: 27475252 DOI: 10.1016/j.tplants.2016.07.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 06/30/2016] [Accepted: 07/07/2016] [Indexed: 05/24/2023]
Abstract
Plant volatiles are crucial for various interactions with other organisms and their surrounding environment. A large number of these volatiles belong to the terpenoid and benzenoid/phenylpropanoid classes, which have long been considered to be exclusively synthesized from a few canonical pathways. However, several alternative pathways producing these plant volatiles have been discovered recently. This review summarizes the current knowledge about new pathways for these two major groups of plant volatiles, which open new perspectives for applications in metabolic engineering.
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Affiliation(s)
- Pulu Sun
- Université de Lyon, UJM-Saint-Étienne, CNRS, BVpam FRE 3727, F-42023 Saint-Étienne, France; Department of Plant Physiology, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Robert C Schuurink
- Department of Plant Physiology, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Jean-Claude Caissard
- Université de Lyon, UJM-Saint-Étienne, CNRS, BVpam FRE 3727, F-42023 Saint-Étienne, France
| | | | - Sylvie Baudino
- Université de Lyon, UJM-Saint-Étienne, CNRS, BVpam FRE 3727, F-42023 Saint-Étienne, France.
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41
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Pazouki L, Niinemets Ü. Multi-Substrate Terpene Synthases: Their Occurrence and Physiological Significance. FRONTIERS IN PLANT SCIENCE 2016; 7:1019. [PMID: 27462341 PMCID: PMC4940680 DOI: 10.3389/fpls.2016.01019] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 06/28/2016] [Indexed: 05/21/2023]
Abstract
Terpene synthases are responsible for synthesis of a large number of terpenes in plants using substrates provided by two distinct metabolic pathways, the mevalonate-dependent pathway that is located in cytosol and has been suggested to be responsible for synthesis of sesquiterpenes (C15), and 2-C-methyl-D-erythritol-4-phosphate pathway located in plastids and suggested to be responsible for the synthesis of hemi- (C5), mono- (C10), and diterpenes (C20). Recent advances in characterization of genes and enzymes responsible for substrate and end product biosynthesis as well as efforts in metabolic engineering have demonstrated existence of a number of multi-substrate terpene synthases. This review summarizes the progress in the characterization of such multi-substrate terpene synthases and suggests that the presence of multi-substrate use might have been significantly underestimated. Multi-substrate use could lead to important changes in terpene product profiles upon substrate profile changes under perturbation of metabolism in stressed plants as well as under certain developmental stages. We therefore argue that multi-substrate use can be significant under physiological conditions and can result in complicate modifications in terpene profiles.
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Affiliation(s)
- Leila Pazouki
- Department of Plant Physiology, Institute of Agricultural and Environmental Sciences, Estonian University of Life SciencesTartu, Estonia
| | - Ülo Niinemets
- Department of Plant Physiology, Institute of Agricultural and Environmental Sciences, Estonian University of Life SciencesTartu, Estonia
- Estonian Academy of SciencesTallinn, Estonia
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42
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Han ZX, Rana MM, Liu GF, Gao MJ, Li DX, Wu FG, Li XB, Wan XC, Wei S. Green tea flavour determinants and their changes over manufacturing processes. Food Chem 2016; 212:739-48. [PMID: 27374591 DOI: 10.1016/j.foodchem.2016.06.049] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 06/13/2016] [Accepted: 06/15/2016] [Indexed: 01/13/2023]
Abstract
Flavour determinants in tea infusions and their changes during manufacturing processes were studied using Camellia sinensis cultivars 'Bai-Sang Cha' ('BAS') possessing significant floral scents and 'Fuding-Dabai Cha' ('FUD') with common green tea odour. Metabolite profiling based on odour activity threshold revealed that 'BAS' contained higher levels of the active odorants β-ionone, linalool and its two oxides, geraniol, epoxylinalool, decanal and taste determinant catechins than 'FUD' (p<0.05). Enhanced transcription of some terpenoid and catechin biosynthetic genes in 'BAS' suggested genetically enhanced production of those flavour compounds. Due to manufacturing processes, the levels of linalool and geraniol decreased whereas those of β-ionone, linalool oxides, indole and cis-jasmone increased. Compared with pan-fire treatment, steam treatment reduced the levels of catechins and proportion of geraniol, linalool and its derivatives, consequently, reducing catechin-related astringency and monoterpenol-related floral scent. Our study suggests that flavour determinant targeted modulation could be made through genotype and manufacturing improvements.
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Affiliation(s)
- Zhuo-Xiao Han
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Ave W., Hefei, Anhui 230036, China
| | - Mohammad M Rana
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Ave W., Hefei, Anhui 230036, China; Bangladesh Tea Research Institute, Srimangal-3210, Moulvibazar, Bangladesh
| | - Guo-Feng Liu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Ave W., Hefei, Anhui 230036, China
| | - Ming-Jun Gao
- Agriculture and Agri-Food Canada, Saskatoon Research and Development Centre, Saskatoon, Saskatchewan S7N 0X2, Canada
| | - Da-Xiang Li
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Ave W., Hefei, Anhui 230036, China
| | - Fu-Guang Wu
- Tea Company of September 16, Shucheng, Anhui 231334, China
| | - Xin-Bao Li
- Tea Company of September 16, Shucheng, Anhui 231334, China
| | - Xiao-Chun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Ave W., Hefei, Anhui 230036, China
| | - Shu Wei
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Ave W., Hefei, Anhui 230036, China.
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Abstract
Terpenoids are a large and diverse class of plant metabolites including mono-, sesqui-, and diterpenes. They have numerous functions in basic physiological processes as well as the interaction of plants with their biotic and abiotic environment. Due to the tight regulation of biosynthetic pathways and the resulting limited natural availability of terpenes, there is a strong interest in increasing their production in plants by metabolic engineering for agricultural, pharmaceutical, and industrial applications. The tomato fruit system was developed as a platform for metabolic engineering of terpenes to overcome detrimental effects on overall plant growth and photosynthesis traits, which are affected when terpenoid engineering is performed in vegetative tissues. Here we describe how the use of fruit-specific promoters for transgene expression can avoid these unwanted effects. In addition, targeting the expression of the introduced terpene biosynthetic gene to fruit tissue can take advantage of the large precursor pool provided by the methylerythritol-phosphate (MEP) pathway, which is highly active during tomato fruit ripening to facilitate the accumulation of carotenoids. We also discuss how the production of high levels of target terpene compounds can be achieved in fruits by the expression of individual or a combination of (i) the MEP or mevalonic acid pathway enzymes, (ii) prenyltransferases, and/or (iii) terpene synthases. Finally, we provide a brief outline of how the emitted as well as internal pools of terpenes can be analyzed in transgenic tomato fruits.
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Affiliation(s)
- M Gutensohn
- Davis College of Agriculture, Natural Resources and Design, West Virginia University, Morgantown, WV, United States
| | - N Dudareva
- Purdue University, West Lafayette, IN, United States.
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44
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Jiang Z, Kempinski C, Bush CJ, Nybo SE, Chappell J. Engineering Triterpene and Methylated Triterpene Production in Plants Provides Biochemical and Physiological Insights into Terpene Metabolism. PLANT PHYSIOLOGY 2016; 170:702-16. [PMID: 26603654 PMCID: PMC4734568 DOI: 10.1104/pp.15.01548] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 11/23/2015] [Indexed: 05/08/2023]
Abstract
Linear, branch-chained triterpenes, including squalene (C30), botryococcene (C30), and their methylated derivatives (C31-C37), generated by the green alga Botryococcus braunii race B have received significant attention because of their utility as chemical and biofuel feedstocks. However, the slow growth habit of B. braunii makes it impractical as a production system. In this study, we evaluated the potential of generating high levels of botryococcene in tobacco (Nicotiana tabacum) plants by diverting carbon flux from the cytosolic mevalonate pathway or the plastidic methylerythritol phosphate pathway by the targeted overexpression of an avian farnesyl diphosphate synthase along with two versions of botryococcene synthases. Up to 544 µg g(-1) fresh weight of botryococcene was achieved when this metabolism was directed to the chloroplasts, which is approximately 90 times greater than that accumulating in plants engineered for cytosolic production. To test if methylated triterpenes could be produced in tobacco, we also engineered triterpene methyltransferases (TMTs) from B. braunii into wild-type plants and transgenic lines selected for high-level triterpene accumulation. Up to 91% of the total triterpene contents could be converted to methylated forms (C31 and C32) by cotargeting the TMTs and triterpene biosynthesis to the chloroplasts, whereas only 4% to 14% of total triterpenes were methylated when this metabolism was directed to the cytoplasm. When the TMTs were overexpressed in the cytoplasm of wild-type plants, up to 72% of the total squalene was methylated, and total triterpene (C30+C31+C32) content was elevated 7-fold. Altogether, these results point to innate mechanisms controlling metabolite fluxes, including a homeostatic role for squalene.
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Affiliation(s)
- Zuodong Jiang
- Plant Biology Program (Z.J., C.K., J.C.) and Department of Pharmaceutical Sciences (C.J.B., S.E.N., J.C.), University of Kentucky, Lexington, Kentucky 40536-0596
| | - Chase Kempinski
- Plant Biology Program (Z.J., C.K., J.C.) and Department of Pharmaceutical Sciences (C.J.B., S.E.N., J.C.), University of Kentucky, Lexington, Kentucky 40536-0596
| | - Caroline J Bush
- Plant Biology Program (Z.J., C.K., J.C.) and Department of Pharmaceutical Sciences (C.J.B., S.E.N., J.C.), University of Kentucky, Lexington, Kentucky 40536-0596
| | - S Eric Nybo
- Plant Biology Program (Z.J., C.K., J.C.) and Department of Pharmaceutical Sciences (C.J.B., S.E.N., J.C.), University of Kentucky, Lexington, Kentucky 40536-0596
| | - Joe Chappell
- Plant Biology Program (Z.J., C.K., J.C.) and Department of Pharmaceutical Sciences (C.J.B., S.E.N., J.C.), University of Kentucky, Lexington, Kentucky 40536-0596
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45
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Choi SY, Lee HJ, Choi J, Kim J, Sim SJ, Um Y, Kim Y, Lee TS, Keasling JD, Woo HM. Photosynthetic conversion of CO2 to farnesyl diphosphate-derived phytochemicals (amorpha-4,11-diene and squalene) by engineered cyanobacteria. BIOTECHNOLOGY FOR BIOFUELS 2016; 9:202. [PMID: 27688805 PMCID: PMC5034544 DOI: 10.1186/s13068-016-0617-8] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 09/16/2016] [Indexed: 05/19/2023]
Abstract
BACKGROUND Metabolic engineering of cyanobacteria has enabled photosynthetic conversion of CO2 to value-added chemicals as bio-solar cell factories. However, the production levels of isoprenoids in engineered cyanobacteria were quite low, compared to other microbial hosts. Therefore, modular optimization of multiple gene expressions for metabolic engineering of cyanobacteria is required for the production of farnesyl diphosphate-derived isoprenoids from CO2. RESULTS Here, we engineered Synechococcus elongatus PCC 7942 with modular metabolic pathways consisting of the methylerythritol phosphate pathway enzymes and the amorphadiene synthase for production of amorpha-4,11-diene, resulting in significantly increased levels (23-fold) of amorpha-4,11-diene (19.8 mg/L) in the best strain relative to a parental strain. Replacing amorphadiene synthase with squalene synthase led to the synthesis of a high amount of squalene (4.98 mg/L/OD730). Overexpression of farnesyl diphosphate synthase is the most critical factor for the significant production, whereas overexpression of 1-deoxy-d-xylulose 5-phosphate reductase is detrimental to the cell growth and the production. Additionally, the cyanobacterial growth inhibition was alleviated by expressing a terpene synthase in S. elongatus PCC 7942 strain with the optimized MEP pathway only (SeHL33). CONCLUSIONS This is the first demonstration of photosynthetic production of amorpha-4,11-diene from CO2 in cyanobacteria and production of squalene in S. elongatus PCC 7942. Our optimized modular OverMEP strain (SeHL33) with either co-expression of ADS or SQS demonstrated the highest production levels of amorpha-4,11-diene and squalene, which could expand the list of farnesyl diphosphate-derived isoprenoids from CO2 as bio-solar cell factories.
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Affiliation(s)
- Sun Young Choi
- Clean Energy Research Center, Korea Institute of Science and Technology, Hwarangro 14-gil 5, Seongbuk-gu, Seoul, 02792 Republic of Korea
- Green School (Graduate School of Energy and Environment), Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Hyun Jeong Lee
- Clean Energy Research Center, Korea Institute of Science and Technology, Hwarangro 14-gil 5, Seongbuk-gu, Seoul, 02792 Republic of Korea
| | - Jaeyeon Choi
- Clean Energy Research Center, Korea Institute of Science and Technology, Hwarangro 14-gil 5, Seongbuk-gu, Seoul, 02792 Republic of Korea
| | - Jiye Kim
- Clean Energy Research Center, Korea Institute of Science and Technology, Hwarangro 14-gil 5, Seongbuk-gu, Seoul, 02792 Republic of Korea
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Sang Jun Sim
- Green School (Graduate School of Energy and Environment), Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Youngsoon Um
- Clean Energy Research Center, Korea Institute of Science and Technology, Hwarangro 14-gil 5, Seongbuk-gu, Seoul, 02792 Republic of Korea
| | - Yunje Kim
- Clean Energy Research Center, Korea Institute of Science and Technology, Hwarangro 14-gil 5, Seongbuk-gu, Seoul, 02792 Republic of Korea
| | - Taek Soon Lee
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA
- Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Jay D. Keasling
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA
- Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
- Department of Bioengineering, University of California, Berkeley, CA 94720 USA
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720 USA
| | - Han Min Woo
- Department of Food Science and Biotechnology, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon, 16419 Republic of Korea
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Singh P, Kalunke RM, Giri AP. Towards comprehension of complex chemical evolution and diversification of terpene and phenylpropanoid pathways in Ocimum species. RSC Adv 2015. [DOI: 10.1039/c5ra16637c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Evolution of chemical diversity and diversification of terpene and phenylpropanoid pathway inOcimumspecies.
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Affiliation(s)
- Priyanka Singh
- Plant Molecular Biology Unit
- Division of Biochemical Sciences
- CSIR-National Chemical Laboratory
- Pune 411008
- India
| | - Raviraj M. Kalunke
- Plant Molecular Biology Unit
- Division of Biochemical Sciences
- CSIR-National Chemical Laboratory
- Pune 411008
- India
| | - Ashok P. Giri
- Plant Molecular Biology Unit
- Division of Biochemical Sciences
- CSIR-National Chemical Laboratory
- Pune 411008
- India
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47
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Pazouki L, Memari HR, Kännaste A, Bichele R, Niinemets Ü. Germacrene A synthase in yarrow (Achillea millefolium) is an enzyme with mixed substrate specificity: gene cloning, functional characterization and expression analysis. FRONTIERS IN PLANT SCIENCE 2015; 6:111. [PMID: 25784918 PMCID: PMC4347605 DOI: 10.3389/fpls.2015.00111] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 02/11/2015] [Indexed: 05/04/2023]
Abstract
Terpenoid synthases constitute a highly diverse gene family producing a wide range of cyclic and acyclic molecules consisting of isoprene (C5) residues. Often a single terpene synthase produces a spectrum of molecules of given chain length, but some terpene synthases can use multiple substrates, producing products of different chain length. Only a few such enzymes has been characterized, but the capacity for multiple-substrate use can be more widespread than previously thought. Here we focused on germacrene A synthase (GAS) that is a key cytosolic enzyme in the sesquiterpene lactone biosynthesis pathway in the important medicinal plant Achillea millefolium (AmGAS). The full length encoding gene was heterologously expressed in Escherichia coli BL21 (DE3), functionally characterized, and its in vivo expression was analyzed. The recombinant protein catalyzed formation of germacrene A with the C15 substrate farnesyl diphosphate (FDP), while acyclic monoterpenes were formed with the C10 substrate geranyl diphosphate (GDP) and cyclic monoterpenes with the C10 substrate neryl diphosphate (NDP). Although monoterpene synthesis has been assumed to be confined exclusively to plastids, AmGAS can potentially synthesize monoterpenes in cytosol when GDP or NDP become available. AmGAS enzyme had high homology with GAS sequences from other Asteraceae species, suggesting that multi-substrate use can be more widespread among germacrene A synthases than previously thought. Expression studies indicated that AmGAS was expressed in both autotrophic and heterotrophic plant compartments with the highest expression levels in leaves and flowers. To our knowledge, this is the first report on the cloning and characterization of germacrene A synthase coding gene in A. millefolium, and multi-substrate use of GAS enzymes.
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Affiliation(s)
- Leila Pazouki
- Institute of Agricultural and Environmental Sciences, Estonian University of Life SciencesTartu, Estonia
- *Correspondence: Leila Pazouki, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr.R. Kreutzwaldi 5, EE-51014 Tartu, Estonia e-mail:
| | - Hamid R. Memari
- Biotechnology and Life Science Center and School of Agriculture, Shahid Chamran UniversityAhvaz, Iran
| | - Astrid Kännaste
- Institute of Agricultural and Environmental Sciences, Estonian University of Life SciencesTartu, Estonia
| | - Rudolf Bichele
- Molecular Pathology, Institute of Biomedicine and Translational Medicine, University of TartuTartu, Estonia
| | - Ülo Niinemets
- Institute of Agricultural and Environmental Sciences, Estonian University of Life SciencesTartu, Estonia
- Estonian Academy of SciencesTallinn, Estonia
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Zeng X, Liu C, Zheng R, Cai X, Luo J, Zou J, Wang C. Emission and Accumulation of Monoterpene and the Key Terpene Synthase (TPS) Associated with Monoterpene Biosynthesis in Osmanthus fragrans Lour. FRONTIERS IN PLANT SCIENCE 2015; 6:1232. [PMID: 26793212 PMCID: PMC4709469 DOI: 10.3389/fpls.2015.01232] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 12/19/2015] [Indexed: 05/22/2023]
Abstract
Osmanthus fragrans is an ornamental and economically important plant known for its magnificent aroma, and the most important aroma-active compounds in flowers are monoterpenes, mainly β-ocimene, linalool and linalool derivatives. To understand the molecular mechanism of monoterpene production, we analyzed the emission and accumulation patterns of these compounds and the transcript levels of the genes involved in their biosynthesis in two O. fragrans cultivars during flowering stages. The results showed that both emission and accumulation of monoterpenes varied with flower development and glycosylation had an important impact on floral linalool emission during this process. Gene expression demonstrated that the transcript levels of terpene synthase (TPS) genes probably played a key role in monoterpene production, compared to the genes in the MEP pathway. Phylogenetic analysis showed that OfTPS1 and OfTPS2 belonged to a TPS-g subfamily, and OfTPS3 and OfTPS4 clustered into a TPS-b subfamily. Their transient and stable expression in tobacco leaves suggested that OfTPS1 and OfTPS2 exclusively produced β-linalool, and trans-β-ocimene was the sole product from OfTPS3, while OfTPS4, a predictive sesquiterpene synthase, produced α-farnesene. These results indicate that OfTPS1, OfTPS2, and OfTPS3 could account for the major floral monoterpenes, linalool and trans-β-ocimene, produced in O. fragrans flowers.
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Affiliation(s)
- Xiangling Zeng
- Key Laboratory for Biology of Horticultural Plants, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural UniversityWuhan, China
| | - Cai Liu
- Key Laboratory for Biology of Horticultural Plants, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural UniversityWuhan, China
| | - Riru Zheng
- Key Laboratory for Biology of Horticultural Plants, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural UniversityWuhan, China
| | - Xuan Cai
- Key Laboratory for Biology of Horticultural Plants, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural UniversityWuhan, China
| | - Jing Luo
- Key Laboratory for Biology of Horticultural Plants, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural UniversityWuhan, China
| | - Jingjing Zou
- Key Laboratory for Biology of Horticultural Plants, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural UniversityWuhan, China
- School of Nuclear Technology and Chemistry and Biology, Hubei University of Science and TechnologyXianning, China
| | - Caiyun Wang
- Key Laboratory for Biology of Horticultural Plants, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural UniversityWuhan, China
- *Correspondence: Caiyun Wang,
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Oliva M, Ovadia R, Perl A, Bar E, Lewinsohn E, Galili G, Oren-Shamir M. Enhanced formation of aromatic amino acids increases fragrance without affecting flower longevity or pigmentation in Petunia × hybrida. PLANT BIOTECHNOLOGY JOURNAL 2015; 13:125-36. [PMID: 25283446 DOI: 10.1111/pbi.12253] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 08/07/2014] [Accepted: 08/11/2014] [Indexed: 05/09/2023]
Abstract
Purple Petunia × hybrida V26 plants accumulate fragrant benzenoid-phenylpropanoid molecules and anthocyanin pigments in their petals. These specialized metabolites are synthesized mainly from the aromatic amino acids phenylalanine. Here, we studied the profile of secondary metabolites of petunia plants, expressing a feedback-insensitive bacterial form of 3-deoxy-di-arabino-heptulosonate 7-phosphate synthase enzyme (AroG*) of the shikimate pathway, as a tool to stimulate the conversion of primary to secondary metabolism via the aromatic amino acids. We focused on specialized metabolites contributing to flower showy traits. The presence of AroG* protein led to increased aromatic amino acid levels in the leaves and high phenylalanine levels in the petals. In addition, the AroG* petals accumulated significantly higher levels of fragrant benzenoid-phenylpropanoid volatiles, without affecting the flowers' lifetime. In contrast, AroG* abundance had no effect on flavonoids and anthocyanins levels. The metabolic profile of all five AroG* lines was comparable, even though two lines produced the transgene in the leaves, but not in the petals. This implies that phenylalanine produced in leaves can be transported through the stem to the flowers and serve as a precursor for formation of fragrant metabolites. Dipping cut petunia stems in labelled phenylalanine solution resulted in production of labelled fragrant volatiles in the flowers. This study emphasizes further the potential of this metabolic engineering approach to stimulate the production of specialized metabolites and enhance the quality of various plant organs. Furthermore, transformation of vegetative tissues with AroG* is sufficient for induced production of specialized metabolites in organs such as the flowers.
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Affiliation(s)
- Moran Oliva
- Department of Ornamental Horticulture, Agriculture Research Organization, The Volcani Center, Beit Dagan, Israel; Department of Plant Sciences, The Weizmann Institute of Science, Rehovot, Israel
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50
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Yue Y, Yu R, Fan Y. Characterization of two monoterpene synthases involved in floral scent formation in Hedychium coronarium. PLANTA 2014; 240:745-62. [PMID: 25056927 DOI: 10.1007/s00425-014-2127-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 07/13/2014] [Indexed: 05/20/2023]
Abstract
Hedychium coronarium, a perennial herb belonging to the family Zingiberaceae, is cultivated as a garden plant or cut flower as well as for medicine and aromatic oil. Its flowers emit a fresh and inviting scent, which is mainly because of monoterpenes present in the profile of the floral volatiles. However, fragrance produced as a result of monoterpenes has not been well studied. In the present study, two novel terpene synthase (TPS) genes (HcTPS7 and HcTPS8) were isolated to study the biosynthesis of monoterpenes in H. coronarium. In vitro characterization showed that the recombinant HcTPS7 was capable of generating sabinene as its main product, in addition to nine sub-products from geranyl diphosphate (GPP). Recombinant HcTPS8 almost specifically catalyzed the formation of linalool from GPP, while it converted farnesyl diphosphate (FPP) to α-bergamotene, cis-α-bisabolene, β-farnesene and other ten sesquiterpenes. Subcellular localization experiments revealed that HcTPS7 and HcTPS8 were located in plastids. Real-time PCR analyses showed that HcTPS7 and HcTPS8 genes were highly expressed in petals and sepals, but were almost undetectable in vegetative organs. The changes of their expression levels in petals were positively correlated with the emission patterns of sabinene and linalool, respectively, during flower development. The results indicated that HcTPS7 and HcTPS8 were involved in the biosynthesis of sabinene and linalool in H. coronarium flowers. Results on these two TPSs first characterized from H. coronarium provide new insights into molecular mechanisms of terpene biosynthesis in this species and also lay the basis for biotechnological modification of floral scent profile in Hedychium.
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Affiliation(s)
- Yuechong Yue
- The Research Center for Ornamental Plants, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China,
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