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Brzycki Newton C, Young EM, Roberts SC. Targeted control of supporting pathways in paclitaxel biosynthesis with CRISPR-guided methylation. Front Bioeng Biotechnol 2023; 11:1272811. [PMID: 37915547 PMCID: PMC10616794 DOI: 10.3389/fbioe.2023.1272811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/09/2023] [Indexed: 11/03/2023] Open
Abstract
Introduction: Plant cell culture biomanufacturing is rapidly becoming an effective strategy for production of high-value plant natural products, such as therapeutic proteins and small molecules, vaccine adjuvants, and nutraceuticals. Many of these plant natural products are synthesized from diverse molecular building blocks sourced from different metabolic pathways. Even so, engineering approaches for increasing plant natural product biosynthesis have typically focused on the core biosynthetic pathway rather than the supporting pathways. Methods: Here, we use both CRISPR-guided DNA methylation and chemical inhibitors to control flux through the phenylpropanoid pathway in Taxus chinensis, which contributes a phenylalanine derivative to the biosynthesis of paclitaxel (Taxol), a potent anticancer drug. To inhibit PAL, the first committed step in phenylpropanoid biosynthesis, we knocked down expression of PAL in Taxus chinensis plant cell cultures using a CRISPR-guided plant DNA methyltransferase (NtDRM). For chemical inhibition of downstream steps in the pathway, we treated Taxus chinensis plant cell cultures with piperonylic acid and caffeic acid, which inhibit the second and third committed steps in phenylpropanoid biosynthesis: cinnamate 4-hydroxylase (C4H) and 4-coumaroyl-CoA ligase (4CL), respectively. Results: Knockdown of PAL through CRISPR-guided DNA methylation resulted in a profound 25-fold increase in paclitaxel accumulation. Further, through the synergistic action of both chemical inhibitors and precursor feeding of exogenous phenylalanine, we achieve a 3.5-fold increase in paclitaxel biosynthesis and a similar reduction in production of total flavonoids and phenolics. We also observed perturbations to both activity and expression of PAL, illustrating the complex transcriptional co-regulation of these first three pathway steps. Discussion: These results highlight the importance of controlling the metabolic flux of supporting pathways in natural product biosynthesis and pioneers CRISPR-guided methylation as an effective method for metabolic engineering in plant cell cultures. Ultimately, this work demonstrates a powerful method for rewiring plant cell culture systems into next-generation chassis for production of societally valuable compounds.
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Affiliation(s)
| | | | - Susan C. Roberts
- Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester, MA, United States
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2
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Vera-Urbina JC, Sellés-Marchart S, Martínez-Márquez A, Martínez-Esteso MJ, Pedreño MA, Morante-Carriel J, Bru-Martínez R. Factors Affecting the Bioproduction of Resveratrol by Grapevine Cell Cultures under Elicitation. Biomolecules 2023; 13:1529. [PMID: 37892211 PMCID: PMC10605596 DOI: 10.3390/biom13101529] [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: 09/28/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
Here we present a study of the characterization and optimization of the production of trans-Resveratrol (t-R) in grape (Vitis vinifera cv. Gamay) cell cultures elicited with methyl jasmonate (MeJA) and dimethyl-β-cyclodextrin (DIMEB). The aim of this study was to determine the influence of a number of factors of the grapevine cell culture on t-R production level in 250 mL shaken flasks that would enable the better control of this bioproduction system when it is upscaled to a 2 L stirred bioreactor. The factors included the optimal growth phase for elicitation, the concentration of elicitors and of biomass, the order of addition of elicitors, and the illumination regime and ageing of cells. We found out that the optimal biomass density for the production of t-R was 19% (w/v) with an optimal ratio of 0.5 g DIMEB/g biomass. The most productive concentrations of the elicitors tested were 50 mM DIMEB and 100 µM MeJA, reaching maximum values of 4.18 mg·mL-1 and 16.3 mg·g biomass-1 of t-R concentration and specific production, respectively. We found that the order of elicitor addition matters since, as compared with the simultaneous addition of both elicitors, the addition of MeJA 48 h before DIMEB results in ca. 40% less t-R production, whilst there is no significant difference when MeJA is added 48 h after DIMEB. Upon upscaling, the better conditions tested for t-R production were aeration at 1.7 vol/vol/min without agitation, 24 °C, and 30 g·L-1 sucrose, achieving production rates similar to those obtained in shaken flasks.
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Affiliation(s)
- Juan Carlos Vera-Urbina
- Departamento Bioquímica y Biología Molecular y Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Alicante, 03690 Alicante, Spain; (J.C.V.-U.); (S.S.-M.); (A.M.-M.); (M.J.M.-E.); (J.M.-C.)
| | - Susana Sellés-Marchart
- Departamento Bioquímica y Biología Molecular y Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Alicante, 03690 Alicante, Spain; (J.C.V.-U.); (S.S.-M.); (A.M.-M.); (M.J.M.-E.); (J.M.-C.)
| | - Ascensión Martínez-Márquez
- Departamento Bioquímica y Biología Molecular y Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Alicante, 03690 Alicante, Spain; (J.C.V.-U.); (S.S.-M.); (A.M.-M.); (M.J.M.-E.); (J.M.-C.)
| | - María José Martínez-Esteso
- Departamento Bioquímica y Biología Molecular y Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Alicante, 03690 Alicante, Spain; (J.C.V.-U.); (S.S.-M.); (A.M.-M.); (M.J.M.-E.); (J.M.-C.)
| | - María Angeles Pedreño
- Department of Plant Biology, Faculty of Biology, Campus de Espinardo, University of Murcia, 30100 Murcia, Spain;
| | - Jaime Morante-Carriel
- Departamento Bioquímica y Biología Molecular y Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Alicante, 03690 Alicante, Spain; (J.C.V.-U.); (S.S.-M.); (A.M.-M.); (M.J.M.-E.); (J.M.-C.)
- Department of Plant Biotechnology, Faculty of Forestry and Agricultural Sciences, Quevedo State Technical University, Quevedo 120503, Ecuador
| | - Roque Bru-Martínez
- Departamento Bioquímica y Biología Molecular y Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Alicante, 03690 Alicante, Spain; (J.C.V.-U.); (S.S.-M.); (A.M.-M.); (M.J.M.-E.); (J.M.-C.)
- Instituto de Investigación Sanitaria y Biomédica de Alicante ISABIAL-Fundación Para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana FISABIO, 03010 Alicante, Spain
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Zang Y, Xie L, Su J, Luo Z, Jia X, Ma X. Advances in DNA methylation and demethylation in medicinal plants: a review. Mol Biol Rep 2023; 50:7783-7796. [PMID: 37480509 DOI: 10.1007/s11033-023-08618-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/21/2023] [Indexed: 07/24/2023]
Abstract
DNA methylation and demethylation are widely acknowledged epigenetic phenomena which can cause heritable and phenotypic changes in functional genes without changing the DNA sequence. They can thus affect phenotype formation in medicinal plants. However, a comprehensive review of the literature summarizing current research trends in this field is lacking. Thus, this review aims to provide an up-to-date summary of current methods for the detection of 5-mC DNA methylation, identification and analysis of DNA methyltransferases and demethyltransferases, and regulation of DNA methylation in medicinal plants. The data showed that polyploidy and environmental changes can affect DNA methylation levels in medicinal plants. Changes in DNA methylation can thus regulate plant morphogenesis, growth and development, and formation of secondary metabolites. Future research is required to explore the mechanisms by which DNA methylation regulates the accumulation of secondary metabolites in medicinal plants.
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Affiliation(s)
- Yimei Zang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Biomedicine College, Beijing City University, Beijing, 100094, China
| | - Lei Xie
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Jiaxian Su
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Zuliang Luo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Xunli Jia
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Xiaojun Ma
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China.
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4
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Kochkin DV, Demidova EV, Globa EB, Nosov AM. Profiling of Taxoid Compounds in Plant Cell Cultures of Different Species of Yew ( Taxus spp.). Molecules 2023; 28:molecules28052178. [PMID: 36903424 PMCID: PMC10004465 DOI: 10.3390/molecules28052178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/17/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Abstract
Plant cell cultures of various yew species are a profitable source of taxoids (taxane diterpenoids) with antitumor activity. So far, despite intensive studies, the principles of the formation of different groups of taxoids in cultured in vitro plant cells have not been fully revealed. In this study, the qualitative composition of taxoids of different structural groups was assessed in callus and suspension cell cultures of three yew species (Taxus baccata, T. canadensis, and T. wallichiana) and two T. × media hybrids. For the first time, 14-hydroxylated taxoids were isolated from the biomass of the suspension culture of T. baccata cells, and their structures were identified by high-resolution mass spectrometry and NMR spectroscopy as 7β-hydroxy-taxuyunnanin C, sinenxane C, taxuyunnanine C, 2α,5α,9α,10β,14β-pentaacetoxy-4(20), 11-taxadiene, and yunnanxane. UPLC-ESI-MS screening of taxoids was performed in more than 20 callus and suspension cell lines originating from different explants and grown in over 20 formulations of nutrient media. Regardless of the species, cell line origin, and conditions, most of the investigated cell cultures retained the ability to form taxane diterpenoids. Nonpolar 14-hydroxylated taxoids (in the form of polyesters) were predominant under in vitro culture conditions in all cell lines. These results, together with the literature data, suggest that dedifferentiated cell cultures of various yew species retain the ability to synthesize taxoids, but predominantly of the 14-OH taxoid group compared to the 13-OH taxoids found in plants.
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Affiliation(s)
- Dmitry V. Kochkin
- Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya Str. 35, 127276 Moscow, Russia
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory 1-12, 119234 Moscow, Russia
- Correspondence: (D.V.K.); (A.M.N.)
| | - Elena V. Demidova
- Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya Str. 35, 127276 Moscow, Russia
| | - Elena B. Globa
- Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya Str. 35, 127276 Moscow, Russia
| | - Alexander M. Nosov
- Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya Str. 35, 127276 Moscow, Russia
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory 1-12, 119234 Moscow, Russia
- Correspondence: (D.V.K.); (A.M.N.)
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5
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March of molecular breeding techniques in the genetic enhancement of herbal medicinal plants: present and future prospects. THE NUCLEUS 2022. [DOI: 10.1007/s13237-022-00406-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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6
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Sykłowska-Baranek K, Sygitowicz G, Maciejak-Jastrzębska A, Pietrosiuk A, Szakiel A. Application of Priming Strategy for Enhanced Paclitaxel Biosynthesis in Taxus × Media Hairy Root Cultures. Cells 2022; 11:cells11132062. [PMID: 35805152 PMCID: PMC9265826 DOI: 10.3390/cells11132062] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/22/2022] [Accepted: 06/27/2022] [Indexed: 01/27/2023] Open
Abstract
Despite huge progress in biotechnological approaches to paclitaxel production, Taxus spp. in vitro culture productivity still remains a challenge. This could be solved by developing a new strategy engaging mechanisms of the primed defence response joined with subsequent elicitation treatment to circumvent limitations in paclitaxel biosynthesis. The hairy roots were primed by preincubation with β-aminobutyric acid (BABA) for 24 h or 1 week, and then elicited with methyl jasmonate (MeJA) or a mixture of MeJA, sodium nitroprusside and L-phenylalanine (MIX). The effect of priming was evaluated on a molecular level by examination of the expression profiles of the four genes involved in paclitaxel biosynthesis, i.e., TXS (taxadiene synthase), BAPT (baccatin III: 3-amino, 3-phenylpropanoyltransferase), DBTNBT (3′-N-debenzoyl-2-deoxytaxol-N-benzoyltransferase) and PAM (phenylalanine aminomutase), as well as rolC (cytokinin-β-glucosidase), originated from the T-DNA of Agrobacterium rhizogenes. The maximum paclitaxel yield was achieved in cultures primed with BABA for 1 week and elicited with MIX (3179.9 ± 212 µg/g dry weight), which corresponded to the highest expression levels of TXS and BAPT genes. Although BABA itself induced the investigated gene expression over control level, it was not translated into paclitaxel production. Nevertheless, preincubation with BABA essentially affected paclitaxel yield, and the duration of BABA pretreatment seemed to have the most pronounced impact on its productivity.
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Affiliation(s)
- Katarzyna Sykłowska-Baranek
- Department of Pharmaceutical Biology and Medicinal Plant Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland; (K.S.-B.); (A.P.)
| | - Grażyna Sygitowicz
- Department of Clinical Chemistry and Laboratory Diagnostics, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland;
- Correspondence:
| | - Agata Maciejak-Jastrzębska
- Department of Clinical Chemistry and Laboratory Diagnostics, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland;
| | - Agnieszka Pietrosiuk
- Department of Pharmaceutical Biology and Medicinal Plant Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland; (K.S.-B.); (A.P.)
| | - Anna Szakiel
- Department of Plant Biochemistry, Faculty of Biology, University of Warsaw, 1 Miecznikowa Str., 02-096 Warsaw, Poland;
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HPLC-PDA-ESI-HRMS-Based Profiling of Secondary Metabolites of Rindera graeca Anatomical and Hairy Roots Treated with Drought and Cold Stress. Cells 2022; 11:cells11060931. [PMID: 35326382 PMCID: PMC8946546 DOI: 10.3390/cells11060931] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/25/2022] [Accepted: 03/03/2022] [Indexed: 11/17/2022] Open
Abstract
To cope with environmental harmful conditions, plant cells developed adaptive strategy that involves production of a wide variety of complex secondary metabolites. The spectrum and quantity of biosynthesized compounds in specific plant species is determined by its genotype, tissue, developmental and physiological stage and environmental factors. This phenomenon was used to exploit the potential of anatomical and hairy root cultures of Rindera graeca to produce bioactive compounds. Cultivated in vitro roots were subjected to abiotic stresses i.e., drought or coldness. Next the extract profiling was performed using HPLC-PDA-ESI-HRMS method, as well quantitative determination of caffeic, rosmarinic and lithospermic B acids, that were present in all root extracts. Phenolic acids, flavonoids and iridoids represent the major groups of compounds detected in chemical profiles growing under various conditions roots. The highest number of phytochemicals was determined in roots subjected to coldness. Lithospermic B acid proved to be the most abundant compound in all investigated extracts. Among applied abiotic stress factors it was demonstrated that coldness affected to the most secondary metabolites production. The results of current study suggest that root cultures of R. graeca could serve as a new and abundant source of lithospermic B acid.
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8
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McKee MC, Wilson SA, Roberts SC. The Interface amongst Conserved and Specialized Pathways in Non-Paclitaxel and Paclitaxel Accumulating Taxus Cultures. Metabolites 2021; 11:metabo11100688. [PMID: 34677403 PMCID: PMC8538509 DOI: 10.3390/metabo11100688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/17/2021] [Accepted: 09/29/2021] [Indexed: 12/02/2022] Open
Abstract
Plant cell cultures derived from Taxus are used to produce valuable metabolites like paclitaxel, a chemotherapeutic drug. Methyl jasmonate elicitation enhances paclitaxel accumulation, but also inhibits culture growth and increases phenylpropanoid biosynthesis, two side effects that detract from taxane accumulation. To understand the connection between all of these processes, a systems approach is applied to investigate cell-wide metabolism in Taxus. Non-paclitaxel and paclitaxel accumulating cultures were elicited over single and multi-generational periods, and subsequent changes in conserved and specialized metabolism were quantified. Methyl jasmonate typically resulted in decreased growth and increased metabolite content in paclitaxel accumulating cultures. Conversely, elicitation typically resulted in either no change or decrease in accumulation of metabolites in the non-paclitaxel accumulating cultures. In both sets of cultures, variability was seen in the response to methyl jasmonate across generations of cell growth. Consolidation of these data determined that paclitaxel accumulation and basal levels of phenolic and flavonoid compounds are indirectly correlated with aggregate size. These approaches assess alternative metabolic pathways that are linked to paclitaxel biosynthesis and provide a comprehensive strategy to both understand the relationship between conserved and specialized metabolism in plants and in the design of strategies to increase natural product yields in plant cell culture.
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Affiliation(s)
- Michelle C. McKee
- Biology & Biotechnology, Worcester Polytechnic Institute, Worcester, MA 01609, USA
| | - Sarah A. Wilson
- Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003, USA
| | - Susan C. Roberts
- Chemical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA
- Correspondence:
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9
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Gao Y, Wang QM, An Q, Cui J, Zhou Y, Qi X, Zhang L, Li L. A novel micropropagation of Lycium ruthenicum and epigenetic fidelity assessment of three types of micropropagated plants in vitro and ex vitro. PLoS One 2021; 16:e0247666. [PMID: 33621255 PMCID: PMC7901770 DOI: 10.1371/journal.pone.0247666] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 02/10/2021] [Indexed: 11/18/2022] Open
Abstract
Lycium ruthenicum is an excellent eco-economic shrub. Numerous researches have been conducted for the function of its fruits but scarcely focused on the somaclonal variation and DNA methylation. An efficient micropropagation protocol from leaves and stems of L. ruthenicum was developed in this study, in which not only the leaf explants but also the stem explants of L. ruthenicum were dedifferentiated and produced adventitious buds/multiple shoots on one type of medium. Notably, the efficient indirect organogenesis of stem explants was independent of exogenous auxin, which is contrary to the common conclusion that induction and proliferation of calli is dependent on exogenous auxin. We proposed that sucrose supply might be the crucial regulator of stem callus induction and proliferation of L. ruthenicum. Furthermore, results of methylation-sensitive amplified polymorphism (MSAP) showed that DNA methylation somaclonal variation (MSV) of CNG decreased but that of CG increased after acclimatization. Three types of micropropagated plants (from leaf calli, stem calli and axillary buds) were epigenetically diverged more from each other after acclimatization and the ex vitro micropropagated plants should be selected to determine the fidelity. In summary, plants micropropagated from axillary buds and leaves of L. ruthenicum was more fidelity and might be suitable for preservation and propagation of elite germplasm. Also, leaf explants should be used in transformation. Meanwhile, plants from stem calli showed the highest MSV and might be used in somaclonal variation breeding. Moreover, one MSV hotspot was found based on biological replicates. The study not only provided foundations for molecular breeding, somaclonal variation breeding, preservation and propagation of elite germplasm, but also offered clues for further revealing novel mechanisms of both stem-explant dedifferentiation and MSV of L. ruthenicum.
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Affiliation(s)
- Yue Gao
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Qin-Mei Wang
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Qinxia An
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Jianguo Cui
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Yongbin Zhou
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Xinyu Qi
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Lijie Zhang
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Lujia Li
- Key Laboratory of Forest Tree Genetics, Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang, Liaoning, China
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Khojasteh A, Metón I, Camino S, Cusido RM, Eibl R, Palazon J. In Vitro Study of the Anticancer Effects of Biotechnological Extracts of the Endangered Plant Species Satureja Khuzistanica. Int J Mol Sci 2019; 20:E2400. [PMID: 31096565 PMCID: PMC6566673 DOI: 10.3390/ijms20102400] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 05/09/2019] [Accepted: 05/13/2019] [Indexed: 12/11/2022] Open
Abstract
Many medicinal plant species are currently threatened in their natural habitats because of the growing demand for phytochemicals worldwide. A sustainable alternative for the production of bioactive plant compounds are plant biofactories based on cell cultures and organs. In addition, plant extracts from biofactories have significant advantages over those obtained from plants, since they are free of contamination by microorganisms, herbicides and pesticides, and they provide more stable levels of active ingredients. In this context, we report the establishment of Satureja khuzistanica cell cultures able to produce high amounts of rosmarinic acid (RA). The production of this phytopharmaceutical was increased when the cultures were elicited with coronatine and scaled up to a benchtop bioreactor. S. khuzistanica extracts enriched in RA were found to reduce the viability of cancer cell lines, increasing the sub-G0/G1 cell population and the activity of caspase-8 in MCF-7 cells, which suggest that S. khuzistanica extracts can induce apoptosis of MCF-7 cells through activation of the extrinsic pathway. In addition, our findings indicate that other compounds in S. khuzistanica extracts may act synergistically to potentiate the anticancer activity of RA.
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Affiliation(s)
- Abbas Khojasteh
- Secció de Fisiologia i Biotecnologia Vegetal, Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Joan XXIII 27-31, 08028 Barcelona, Spain.
| | - Isidoro Metón
- Secció de Bioquímica i Biologia Molecular, Departament de Bioquímica i Fisiologia, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Joan XXIII 27-31, 08028 Barcelona, Spain.
| | - Sergio Camino
- Secció de Bioquímica i Biologia Molecular, Departament de Bioquímica i Fisiologia, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Joan XXIII 27-31, 08028 Barcelona, Spain.
| | - Rosa M Cusido
- Secció de Fisiologia i Biotecnologia Vegetal, Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Joan XXIII 27-31, 08028 Barcelona, Spain.
| | - Regine Eibl
- Institute of Chemistry and Biotechnology, Biochemical Engineering and Cell Cultivation Techniques, Campus Grüental, Zurich University of Applied Sciences, 8820 Wädenswill, Switzerland.
| | - Javier Palazon
- Secció de Fisiologia i Biotecnologia Vegetal, Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Joan XXIII 27-31, 08028 Barcelona, Spain.
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11
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Sanchez-Muñoz R, Bonfill M, Cusidó RM, Palazón J, Moyano E. Advances in the Regulation of In Vitro Paclitaxel Production: Methylation of a Y-Patch Promoter Region Alters BAPT Gene Expression in Taxus Cell Cultures. PLANT & CELL PHYSIOLOGY 2018; 59:2255-2267. [PMID: 30060238 DOI: 10.1093/pcp/pcy149] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 07/19/2018] [Indexed: 06/08/2023]
Abstract
Plant cell biofactories represent a promising solution to the increasing demand for plant-derived compounds, but there are still limiting factors that prevent optimal production, including the loss of yield during in vitro maintenance. Our results reveal a clear correlation between genomic methylation levels and a progressive decline in taxane production in Taxus spp. cell cultures. A comparative study of two cell lines, one 10 years old and low productive and the other new and high productive, revealed important differences in appearance, growth, taxane accumulation and expression levels of several taxane biosynthetic genes. Differences in taxane content and gene expression profile indicate an altered pathway regulation and that the BAPT gene, located in the center of the expression network of taxane biosynthetic genes, is active in a potentially flux-limiting step. The methylation patterns of the BAPT gene were studied in both cell lines by bisulfite sequencing, which revealed high rates of CHH methylated cytosines on the core promoter. Using a bioinformatics approach, this hotspot was identified as a Y-patch promoter element. The Y-patch may play a key role in the epigenetic regulation of the taxane biosynthetic pathway, which would open up novel genetic engineering strategies toward stable and high productivity.
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Affiliation(s)
- Raul Sanchez-Muñoz
- Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, E-08003 Barcelona, Spain
| | - Mercedes Bonfill
- Secció de Fisiologia Vegetal, Facultat de Farmàcia, Universitat de Barcelona, E-08028 Barcelona, Spain
| | - Rosa M Cusidó
- Secció de Fisiologia Vegetal, Facultat de Farmàcia, Universitat de Barcelona, E-08028 Barcelona, Spain
| | - Javier Palazón
- Secció de Fisiologia Vegetal, Facultat de Farmàcia, Universitat de Barcelona, E-08028 Barcelona, Spain
| | - Elisabeth Moyano
- Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, E-08003 Barcelona, Spain
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Hao DC, Xiao PG. Deep in shadows: Epigenetic and epigenomic regulations of medicinal plants. CHINESE HERBAL MEDICINES 2018. [DOI: 10.1016/j.chmed.2018.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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13
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Orłowska R, Machczyńska J, Oleszczuk S, Zimny J, Bednarek PT. DNA methylation changes and TE activity induced in tissue cultures of barley (Hordeum vulgare L.). JOURNAL OF BIOLOGICAL RESEARCH (THESSALONIKE, GREECE) 2016; 23:19. [PMID: 27508170 PMCID: PMC4977862 DOI: 10.1186/s40709-016-0056-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 07/25/2016] [Indexed: 11/10/2022]
Abstract
BACKGROUND In vitro plant regeneration via androgenesis or somatic embryogenesis is capable of inducing (epi)mutations that may affect sexual progenies. While epimutations are associated with DNA methylation, mutations could be due to the movement of transposons. The common notion is that both processes are linked. It is being assumed that demethylation activates transposable elements (TEs). Analysis of methylation changes and their relation with TEs activation in tissue cultures requires uniquely derived donor plants (Ds), their regenerants (Rs) and respective progeny (Ps) that would allow discrimination of processes not related to changes introduced via in vitro cultures. Moreover, a set of methods (RP-HPLC, SSAP, and MSTD) is needed to study whether different TEs families are being activated during in vitro tissue culture plant regeneration and whether their activity could be linked to DNA methylation changes or alternative explanations should be considered. RESULTS The in vitro tissue culture plant regeneration in barley was responsible for the induction of DNA methylation in regenerants and conservation of the methylation level in the progeny as shown by the RP-HPLC approach. No difference between andro- and embryo-derived Rs and Ps was observed. The SSAP and MSTD approach revealed that Ds and Rs were more polymorphic than Ps. Moreover, Rs individuals exhibited more polymorphisms with the MSTD than SSAP approach. The differences between Ds, Rs and Ps were also evaluated via ANOVA and AMOVA. CONCLUSIONS Stressful conditions during plant regeneration via in vitro tissue cultures affect regenerants and their sexual progeny leading to an increase in global DNA methylation of Rs and Ps compared to Ds in barley. The increased methylation level noted among regenerants remains unchanged in the Ps as indicated via RP-HPLC data. Marker-based experiments suggest that TEs are activated via in vitro tissue cultures and that, independently of the increased methylation, their activity in Rs is greater than in Ps. Thus, the increased methylation level may not correspond to the stabilization of TEs movement at least at the level of regenerants. The presence of TEs variation among Ds that were genetically and epigenetically uniform may suggest that at least some mobile elements may be active, and they may mask variation related to tissue cultures. Thus, tissue cultures may activate some TEs whereas the others remain intact, or their level of movement is changed. Finally, we suggest that sexual reproduction may be responsible for the stabilization of TEs.
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Affiliation(s)
- Renata Orłowska
- Department of Plant Physiology and Biochemistry, Plant Breeding and Acclimatization Institute-National Research Institute, Radzików, 05-870 Błonie, Poland
| | - Joanna Machczyńska
- Department of Plant Physiology and Biochemistry, Plant Breeding and Acclimatization Institute-National Research Institute, Radzików, 05-870 Błonie, Poland
| | - Sylwia Oleszczuk
- Department of Plant Biotechnology and Cytogenetics, Plant Breeding and Acclimatization Institute-National Research Institute, Radzików, 05-870 Błonie, Poland
| | - Janusz Zimny
- Department of Plant Biotechnology and Cytogenetics, Plant Breeding and Acclimatization Institute-National Research Institute, Radzików, 05-870 Błonie, Poland
| | - Piotr Tomasz Bednarek
- Department of Plant Physiology and Biochemistry, Plant Breeding and Acclimatization Institute-National Research Institute, Radzików, 05-870 Błonie, Poland
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Nasiri J, Naghavi MR, Alizadeh H, Moghadam MRF. Seasonal-based temporal changes fluctuate expression patterns of TXS, DBAT, BAPT and DBTNBT genes alongside production of associated taxanes in Taxus baccata. PLANT CELL REPORTS 2016; 35:1103-1119. [PMID: 26883228 DOI: 10.1007/s00299-016-1941-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 01/24/2016] [Indexed: 06/05/2023]
Abstract
Environmental cues have synergistic or antagonistic regulatory roles on transcription activity and taxanes accumulation in yew, though DBAT activity is less influenced, could be accordingly a rate-limiting enzyme. The current work was undertaken to elucidate the consequences of some environmental cues (i.e., day length, temperature, sunlight and relative humidity) on the expression patterns of TXS, DBAT, BAPT and DBTNBT genes contributed to the taxol biosynthetic pathway along with the accumulation of some taxanes in needles and stems of Taxus baccata over year 2013-2014. In both tissues, light intensity and temperature correlated with the production of 10-DAB III and total taxanes, and TXS activity, while a lack of significant association was deduced for day length and relative humidity. Furthermore, in both tissues, a weak correlation was observed between BAC III and light intensity, temperature, day length and relative humidity, and the corresponding gene, DBAT. Surprisingly, DBAT activity was not co-induced with TXS in both tissues, and remained expressed at basal levels over year, supporting that the conversion of 10-DAB III into BAC III could presumably be a rate limiting step in the taxol biosynthetic pathway. Similar to BAC III, no strong correlation was detected between production of taxol in both tissues and all the meteorological data, while the corresponding genes BAPT and DBTNBT, in some cases, exhibited significant correlated results. Notably, despite higher activities of BAPT and DBTNBT in both tissues over year, taxol production was still in small quantities, probably owing to the low amounts of its precursors rather than low volumes of BAPT and DBTNBT transcripts. The results, altogether, could provide us new insights towards the potential regulatory roles of environmental cues on the production of taxanes in yew trees.
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Affiliation(s)
- Jaber Nasiri
- Division of Plant Molecular Genetics, Department of Agronomy and Plant Breeding, Agricultural and Natural Resources College, University of Tehran, Karaj, Iran.
| | - Mohammad Reza Naghavi
- Division of Plant Molecular Genetics, Department of Agronomy and Plant Breeding, Agricultural and Natural Resources College, University of Tehran, Karaj, Iran.
| | - Houshang Alizadeh
- Division of Plant Molecular Genetics, Department of Agronomy and Plant Breeding, Agricultural and Natural Resources College, University of Tehran, Karaj, Iran
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Dubrovina AS, Kiselev KV. Age-associated alterations in the somatic mutation and DNA methylation levels in plants. PLANT BIOLOGY (STUTTGART, GERMANY) 2016; 18:185-196. [PMID: 26211365 DOI: 10.1111/plb.12375] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 07/21/2015] [Indexed: 05/18/2023]
Abstract
Somatic mutations of the nuclear and mitochondrial DNA and alterations in DNA methylation levels in mammals are well known to play important roles in ageing and various diseases, yet their specific contributions await further investigation. For plants, it has also been proposed that unrepaired DNA damage and DNA polymerase errors accumulate in plant cells and lead to increased somatic mutation rate and alterations in transcription, which eventually contribute to plant ageing. A number of studies also show that DNA methylation levels vary depending on the age of plant tissue and chronological age of a whole plant. Recent studies reveal that prolonged cultivation of plant cells in vitro induces single nucleotide substitutions and increases global DNA methylation level in a time-dependent fashion. Changes in DNA methylation are known to influence DNA repair and can lead to altered mutation rates, and, therefore, it is interesting to investigate both the genetic and epigenetic integrity in relationship to ageing in plants. This review will summarise and discuss the current studies investigating somatic DNA mutation and DNA methylation levels in relation to plant ageing and senescence. The analysis has shown that there still remains a lack of clarity concerning plant biological ageing and the role of the genetic and epigenetic instabilities in this process.
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Affiliation(s)
- A S Dubrovina
- Laboratory of Biotechnology, Institute of Biology and Soil Science, Far East Branch of Russian Academy of Sciences, Vladivostok, Russia
| | - K V Kiselev
- Laboratory of Biotechnology, Institute of Biology and Soil Science, Far East Branch of Russian Academy of Sciences, Vladivostok, Russia
- Department of Biochemistry, Microbiology and Biotechnology, The School of Natural Sciences, Far Eastern Federal University, Vladivostok, Russia
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16
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Dong YS, Fu CH, Su P, Xu XP, Yuan J, Wang S, Zhang M, Zhao CF, Yu LJ. Mechanisms and effective control of physiological browning phenomena in plant cell cultures. PHYSIOLOGIA PLANTARUM 2016; 156:13-28. [PMID: 26333689 DOI: 10.1111/ppl.12382] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 07/08/2015] [Indexed: 06/05/2023]
Abstract
Browning phenomena are ubiquitous in plant cell cultures that severely hamper scientific research and widespread application of plant cell cultures. Up to now, this problem still has not been well controlled due to the unclear browning mechanisms in plant cell cultures. In this paper, the mechanisms were investigated using two typical materials with severe browning phenomena, Taxus chinensis and Glycyrrhiza inflata cells. Our results illustrated that the browning is attributed to a physiological enzymatic reaction, and phenolic biosynthesis regulated by sugar plays a decisive role in the browning. Furthermore, to confirm the specific compounds which participate in the enzymatic browning reaction, transcriptional profile and metabolites of T. chinensis cells, and UV scanning and high-performance liquid chromatography-mass spectrometry (HPLC-MS) profile of the browning compounds extracted from the brown-turned medium were analyzed, flavonoids derived from phenylpropanoid pathway were found to be the main compounds, and myricetin and quercetin were deduced to be the main substrates of the browning reaction. Inhibition of flavonoid biosynthesis can prevent the browning occurrence, and the browning is effectively controlled via blocking flavonoid biosynthesis by gibberellic acid (GA3 ) as an inhibitor, which further confirms that flavonoids mainly contribute to the browning. On the basis above, a model elucidating enzymatic browning mechanisms in plant cell cultures was put forward, and effective control approaches were presented.
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Affiliation(s)
- Yan-Shan Dong
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics Ministry of Education, Huazhong University of Science and Technology, Wuhan, China
| | - Chun-Hua Fu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics Ministry of Education, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Su
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics Ministry of Education, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang-Ping Xu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics Ministry of Education, Huazhong University of Science and Technology, Wuhan, China
| | - Jie Yuan
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics Ministry of Education, Huazhong University of Science and Technology, Wuhan, China
| | - Sheng Wang
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics Ministry of Education, Huazhong University of Science and Technology, Wuhan, China
| | - Meng Zhang
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics Ministry of Education, Huazhong University of Science and Technology, Wuhan, China
| | - Chun-Fang Zhao
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics Ministry of Education, Huazhong University of Science and Technology, Wuhan, China
| | - Long-Jiang Yu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Molecular Biophysics Ministry of Education, Huazhong University of Science and Technology, Wuhan, China
- Wuhan Institute of Biotechnology, Wuhan Biolake, Wuhan, China
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17
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Li XL, Yuan J, Dong YS, Fu CH, Li MT, Yu LJ. Optimization of an HPLC Method for Determining the Genomic Methylation Levels of Taxus Cells. J Chromatogr Sci 2015; 54:200-5. [PMID: 26341490 DOI: 10.1093/chromsci/bmv129] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Indexed: 11/14/2022]
Abstract
An HPLC method for quantifying total DNA methylation in Taxus chinensis cells is described. Optimal conditions for the method were established as follows: DNA was hydrolyzed with DNA degradase at 37°C for 3 h. The mobile phase was a mixture of Solvent A [50 mM potassium dihydrogen phosphate/triethylamine (100:0.2, v/v)] and Solvent B (methanol); the gradient was 10% (v/v) solvent B. The calibration curves for deoxycytidine monophosphate (dCMP) and methylated dCMP were linear within 1.0-160.0 µg mL(-1), with correlation coefficients of 0.9996 and 0.9998. The limits of detection for dCMP and 5-mdCMP were 0.482 and 0.301 ng mL(-1), respectively, and the limits of quantification were 1.6 and 1.0 ng mL(-1), respectively. The method has been validated according to the current International Conference Harmonization guidelines. The method was able to quantify the content of dCMP and methylated dCMP specifically, accurately and precisely. The global DNA methylation level in different Taxus cells was measured using as little as 3 µg of DNA according to the optimized procedure. In addition, degradation of 5-methylcytosine was prevented.
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Affiliation(s)
- Xiao-li Li
- Department of Biotechnology, College of Life Science and Technology, Institute of Resource Biology and Biotechnology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jie Yuan
- Department of Biotechnology, College of Life Science and Technology, Institute of Resource Biology and Biotechnology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yan-shan Dong
- Department of Biotechnology, College of Life Science and Technology, Institute of Resource Biology and Biotechnology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Chun-hua Fu
- Department of Biotechnology, College of Life Science and Technology, Institute of Resource Biology and Biotechnology, Huazhong University of Science and Technology, Wuhan 430074, China Key Laboratory of Molecular Biophysics of Ministry of Education, Wuhan 430074, China
| | - Mao-Teng Li
- Department of Biotechnology, College of Life Science and Technology, Institute of Resource Biology and Biotechnology, Huazhong University of Science and Technology, Wuhan 430074, China Key Laboratory of Molecular Biophysics of Ministry of Education, Wuhan 430074, China Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains, Huanggang, China
| | - Long-jiang Yu
- Department of Biotechnology, College of Life Science and Technology, Institute of Resource Biology and Biotechnology, Huazhong University of Science and Technology, Wuhan 430074, China Key Laboratory of Molecular Biophysics of Ministry of Education, Wuhan 430074, China
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18
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Nic-Can GI, Galaz-Ávalos RM, De-la-Peña C, Alcazar-Magaña A, Wrobel K, Loyola-Vargas VM. Somatic Embryogenesis: Identified Factors that Lead to Embryogenic Repression. A Case of Species of the Same Genus. PLoS One 2015; 10:e0126414. [PMID: 26038822 PMCID: PMC4454440 DOI: 10.1371/journal.pone.0126414] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 04/01/2015] [Indexed: 11/19/2022] Open
Abstract
Somatic embryogenesis is a powerful biotechnological tool for the mass production of economically important cultivars. Due to the cellular totipotency of plants, somatic cells under appropriate conditions are able to develop a complete functional embryo. During the induction of somatic embryogenesis, there are different factors involved in the success or failure of the somatic embryogenesis response. Among these factors, the origin of the explant, the culture medium and the in vitro environmental conditions have been the most studied. However, the secretion of molecules into the media has not been fully addressed. We found that the somatic embryogenesis of Coffea canephora, a highly direct embryogenic species, is disrupted by the metabolites secreted from C. arabica, a poorly direct embryogenic species. These metabolites also affect DNA methylation. Our results show that the abundance of two major phenolic compounds, caffeine and chlorogenic acid, are responsible for inhibiting somatic embryogenesis in C. canephora.
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Affiliation(s)
- Geovanny I. Nic-Can
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Calle 43 No. 130, Col. Chuburná de Hidalgo, CP 97200, Mérida, Yucatán, México
| | - Rosa M. Galaz-Ávalos
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Calle 43 No. 130, Col. Chuburná de Hidalgo, CP 97200, Mérida, Yucatán, México
| | - Clelia De-la-Peña
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Calle 43 No. 130, Col. Chuburná de Hidalgo, CP 97200, Mérida, Yucatán, México
| | - Armando Alcazar-Magaña
- Department of Chemistry, University of Guanajuato, L. de Retana 5, CP 36000 Guanajuato, Mexico
| | - Kazimierz Wrobel
- Department of Chemistry, University of Guanajuato, L. de Retana 5, CP 36000 Guanajuato, Mexico
| | - Víctor M. Loyola-Vargas
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Calle 43 No. 130, Col. Chuburná de Hidalgo, CP 97200, Mérida, Yucatán, México
- * E-mail:
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Kiselev KV, Tyunin AP, Karetin YA. Salicylic acid induces alterations in the methylation pattern of the VaSTS1, VaSTS2, and VaSTS10 genes in Vitis amurensis Rupr. cell cultures. PLANT CELL REPORTS 2015; 34:311-20. [PMID: 25420769 DOI: 10.1007/s00299-014-1708-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 10/31/2014] [Accepted: 11/17/2014] [Indexed: 05/13/2023]
Abstract
Salicylic acid (SA) treatment selectively reduced the cytosine DNA methylation of stilbene synthase ( STS ) genes and stimulated resveratrol production in cell cultures of Vitis amurensis. The effect of salicylic acid (SA) on plant growth, flowering time, and fruit number is known to correlate with the level of DNA methylation, while the potential correlation between SA-induced changes in DNA methylation and biosynthesis of secondary metabolites has not been studied. Trans-resveratrol, a naturally occurring plant phenol, has been reported to exhibit a wide range of valuable biological and pharmacological properties. In this study, cell cultures of Vitis amurensis capable of producing t-resveratrol were used as a model system to study whether the SA-induced increase in t-resveratrol production is associated with changes in DNA methylation of stilbene synthase (STS) genes. T-resveratrol is synthesized via the phenylpropanoid pathway, in which STS genes are the key enzymes. Treatment of V. amurensis callus cultures with SA significantly increased t-resveratrol production and the expression of certain STS genes (e.g., VaSTS2 and VaSTS10). A marked decrease in the methylation of the VaSTS2 and VaSTS10 genes in response to SA was demonstrated using bisulfite sequencing, while no considerable changes were detected in the methylation of VaSTS1, a constitutively and highly expressed STS gene. The obtained results show that SA treatment selectively reduced cytosine methylation of VaSTS genes. The data suggest that selective DNA demethylation of particular STS genes could be necessary for the activation of t-resveratrol biosynthesis in response to SA. This finding provides an insight into the mechanism of SA action and biosynthesis of secondary metabolites in plant cells.
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Affiliation(s)
- K V Kiselev
- Laboratory of Biotechnology, Institute of Biology and Soil Science, Far East Branch of Russian Academy of Sciences, 690022, Vladivostok, Russia,
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A rational approach to improving the biotechnological production of taxanes in plant cell cultures of Taxus spp. Biotechnol Adv 2014; 32:1157-67. [DOI: 10.1016/j.biotechadv.2014.03.002] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 03/05/2014] [Accepted: 03/05/2014] [Indexed: 12/24/2022]
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Ventura L, Giovannini A, Savio M, Donà M, Macovei A, Buttafava A, Carbonera D, Balestrazzi A. Single Cell Gel Electrophoresis (Comet) assay with plants: research on DNA repair and ecogenotoxicity testing. CHEMOSPHERE 2013; 92:1-9. [PMID: 23557725 DOI: 10.1016/j.chemosphere.2013.03.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 02/19/2013] [Accepted: 03/06/2013] [Indexed: 05/24/2023]
Abstract
Single Cell Gel Electrophoresis is currently used to investigate the cell response to genotoxic agents as well as to several biotic and abiotic stresses that lead to oxidative DNA damage. Different versions of Single Cell Gel Electrophoresis have been developed in order to expand the range of DNA lesions that can be detected and guidelines for their use in genetic toxicology have been provided. Applications of Single Cell Gel Electrophoresis in plants are still limited, compared to animal systems. This technique is now emerging as a useful tool in assessing the potential of higher plants as stable sensors in ecosystems and source of information on the genotoxic impact of dangerous pollutants. Another interesting application of Single Cell Gel Electrophoresis deals with Mutation Breeding or the combined use of irradiation and in vitro culture technique to enhance genetic variability in elite plant genotypes. SCGE, in combination with in situ detection of Reactive Oxygen Species (ROS) induced by γ-rays and expression analysis of both DNA repair and antioxidant genes, can be used to gather information on the radiosensitivity level of the target plant genotypes.
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Affiliation(s)
- Lorenzo Ventura
- Dipartimento di Chimica, via Taramelli 12, 27100 Pavia, Italy
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Li LQ, Li XL, Fu CH, Zhao CF, Yu LJ. Sustainable use of Taxus media cell cultures through minimal growth conservation and manipulation of genome methylation. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.01.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Rival A, Ilbert P, Labeyrie A, Torres E, Doulbeau S, Personne A, Dussert S, Beulé T, Durand-Gasselin T, Tregear JW, Jaligot E. Variations in genomic DNA methylation during the long-term in vitro proliferation of oil palm embryogenic suspension cultures. PLANT CELL REPORTS 2013; 32:359-368. [PMID: 23179461 DOI: 10.1007/s00299-012-1369-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 09/03/2012] [Accepted: 11/06/2012] [Indexed: 05/24/2023]
Abstract
KEY MESSAGE : The long-term proliferation of embryogenic cell suspensions of oil palm is associated with changes in both genomic methylation rates and embryogenic capacities. In the aim of exploring the relationship between epigenetic stability and the long-term in vitro proliferation of plant tissues, we have studied changes in genomic DNA methylation levels in embryogenic suspensions of oil palm (Elaeis guineensis Jacq.). Five embryogenic callus lines were obtained from selected hybrid seeds and then proliferated as suspension cultures. Each clonal line obtained from a single genotype was subdivided into three independent subclonal lines. Once established, cultures proliferated for 12 months and genomic DNA was sampled at 4 months intervals for the estimation of global DNA methylation rates through high performance liquid chromatography (HPLC) quantitation of deoxynucleosides. Our results show that in vitro proliferation induces DNA hypermethylation in a time-dependent fashion. Moreover, this trend is statistically significant in several clonal lines and shared between subclonal lines originating from the same genotype. Interestingly, the only clonal line undergoing loss of genomic methylation in the course of proliferation has been found unable to generate somatic embryos. We discuss the possible implications of genome-wide DNA methylation changes in proliferating cells with a view to the maintenance of genomic and epigenomic stability.
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Affiliation(s)
- Alain Rival
- CIRAD, UMR DIADE (IRD, UMSF), 34394, Montpellier, France
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