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Traverse KKF, Breselge S, Trautman JG, Dee A, Wang J, Childs KL, Lee-Parsons CWT. Characterization of the ZCTs, a subgroup of Cys2-His2 zinc finger transcription factors regulating alkaloid biosynthesis in Catharanthus roseus. PLANT CELL REPORTS 2024; 43:209. [PMID: 39115578 PMCID: PMC11310244 DOI: 10.1007/s00299-024-03295-8] [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: 03/11/2024] [Accepted: 07/26/2024] [Indexed: 08/11/2024]
Abstract
KEY MESSAGE The C. roseus ZCTs are jasmonate-responsive, can be induced by CrMYC2a, and can act as significant regulators of the terpenoid indole alkaloid pathway when highly expressed. Catharanthus roseus is the sole known producer of the anti-cancer terpenoid indole alkaloids (TIAs), vinblastine and vincristine. While the enzymatic steps of the pathway have been elucidated, an understanding of its regulation is still emerging. The present study characterizes an important subgroup of Cys2-His2 zinc finger transcription factors known as Zinc finger Catharanthus Transcription factors (ZCTs). We identified three new ZCT members (named ZCT4, ZCT5, and ZCT6) that clustered with the putative repressors of the TIA pathway, ZCT1, ZCT2, and ZCT3. We characterized the role of these six ZCTs as potential redundant regulators of the TIA pathway, and their tissue-specific and jasmonate-responsive expression. These ZCTs share high sequence conservation in their two Cys2-His2 zinc finger domains but differ in the spacer length and sequence between these zinc fingers. The transient overexpression of ZCTs in seedlings significantly repressed the promoters of the terpenoid (pLAMT) and condensation branch (pSTR1) of the TIA pathway, consistent with that previously reported for ZCT1, ZCT2, and ZCT3. In addition, ZCTs significantly repressed and indirectly activated several promoters of the vindoline pathway (not previously studied). The ZCTs differed in their tissue-specific expression but similarly increased with jasmonate in a dosage-dependent manner (except for ZCT5). We showed significant activation of the pZCT1 and pZCT3 promoters by the de-repressed CrMYC2a, suggesting that the jasmonate-responsive expression of the ZCTs can be mediated by CrMYC2a. In summary, the C. roseus ZCTs are jasmonate-responsive, can be induced by CrMYC2a, and can act as significant regulators of the TIA pathway when highly expressed.
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Affiliation(s)
| | - Samuel Breselge
- Department of Biology, Northeastern University, Boston, MA, USA
| | - Juliet G Trautman
- Department of Bioengineering, Northeastern University, Boston, MA, USA
| | - Amanda Dee
- Department of Bioengineering, Northeastern University, Boston, MA, USA
| | - Jie Wang
- Department of Plant Biology, Michigan State University, East Lansing, MI, USA
| | - Kevin L Childs
- Department of Plant Biology, Michigan State University, East Lansing, MI, USA
| | - Carolyn W T Lee-Parsons
- Department of Chemical Engineering, Northeastern University, Boston, MA, 02115, USA.
- Department of Bioengineering, Northeastern University, Boston, MA, USA.
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, USA.
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2
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Cole‐Osborn LF, Meehan E, Lee‐Parsons CWT. Critical parameters for robust Agrobacterium-mediated transient transformation and quantitative promoter assays in Catharanthus roseus seedlings. PLANT DIRECT 2024; 8:e596. [PMID: 38855128 PMCID: PMC11154794 DOI: 10.1002/pld3.596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/16/2024] [Accepted: 05/14/2024] [Indexed: 06/11/2024]
Abstract
Agrobacterium-mediated transient expression methods are widely used to study gene function in both model and non-model plants. Using a dual-luciferase assay, we quantified the effect of Agrobacterium-infiltration parameters on the transient transformation efficiency of Catharanthus roseus seedlings. We showed that transformation efficiency is highly sensitive to seedling developmental state and a pre- and post-infiltration dark incubation and is less sensitive to the Agrobacterium growth stage. For example, 5 versus 6 days of germination in the dark increased seedling transformation efficiency by seven- to eight-fold while a dark incubation pre- and post-infiltration increased transformation efficiency by five- to 13-fold. Agrobacterium in exponential compared with stationary phase increased transformation efficiency by two-fold. Finally, we quantified the variation in our Agrobacterium-infiltration method in replicate infiltrations and experiments. Within a given experiment, significant differences of up to 2.6-fold in raw firefly luciferase (FLUC) and raw Renilla luciferase (RLUC) luminescence occurred in replicate infiltrations. These differences were significantly reduced when FLUC was normalized to RLUC values, highlighting the utility of including a reference reporter to minimize false positives. Including a second experimental replicate further reduced the potential for false positives. This optimization and quantitative validation of Agrobacterium infiltration in C. roseus seedlings will facilitate the study of this important medicinal plant and will expand the application of Agrobacterium-mediated transformation methods in other plant species.
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Affiliation(s)
| | - Emma Meehan
- Department of Chemical EngineeringNortheastern UniversityBostonMassachusettsUSA
| | - Carolyn W. T. Lee‐Parsons
- Department of Chemical EngineeringNortheastern UniversityBostonMassachusettsUSA
- Department of Chemistry and Chemical BiologyNortheastern UniversityBostonMassachusettsUSA
- Department of BioengineeringNortheastern UniversityBostonMassachusettsUSA
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3
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Balasubramanian M, Girija S. Overexpression of AtMYB12 transcription factor simultaneously enhances quercetin-dependent metabolites in radish callus. Heliyon 2024; 10:e27053. [PMID: 38660267 PMCID: PMC11039974 DOI: 10.1016/j.heliyon.2024.e27053] [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: 06/19/2023] [Revised: 02/10/2024] [Accepted: 02/22/2024] [Indexed: 04/26/2024] Open
Abstract
The study aimed to enhance quercetin production in radish by optimizing Agrobacterium tumefaciens-mediated in-planta transformation. This protocol involved infecting radish seed embryo axis with A. tumefaciens EHA105 strain carrying the 35S::AtMYB12. Radish seeds were infected with the Agrobacterium suspension (0.8 OD600) for 30 min, followed by sonication for 60 s and vacuum infiltration for 90 s at 100 mm Hg. A 3-day co-cultivation in Murashige and Skoog medium with 150 μM acetosyringone yielded a transformation efficiency of 59.6% and a transgenic callus induction rate of 32.3%. Transgenic plant and callus lines were confirmed by GUS histochemical assay, PCR, and qRT-PCR. The transgenic lines showed an increased expression of flavonoid pathway genes (AtMYB12, CHS, F3H, and FLS) and antioxidant genes (GPX, APX, CAT, and SOD) compared to WT plants. Overexpression of AtMYB12 in transgenic callus increased enzyme activity of phenylalanine ammonia lyase, catalase, and ascorbate peroxidase. In half-strength MS medium with 116.8 mM sucrose, the highest growth index (7.63) was achieved after 20 days. In AtMYB12 overexpressed callus lines, phenolic content (357.31 mg g-1 dry weight), flavonoid content (463 mg g-1 dry weight), and quercetin content (48.24 mg g-1 dry weight) increased significantly by 9.41-fold. Micro-wounding, sonication, and vacuum infiltration improved in-planta transformation in radishes. These high-quercetin-content transgenic callus lines hold promise as valuable sources of flavonoids.
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Affiliation(s)
- Muthusamy Balasubramanian
- Metabolic Engineering Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
- Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 52900, Israel
| | - Shanmugam Girija
- Metabolic Engineering Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
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4
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Tansley C, Patron NJ, Guiziou S. Engineering Plant Cell Fates and Functions for Agriculture and Industry. ACS Synth Biol 2024; 13:998-1005. [PMID: 38573786 PMCID: PMC11036505 DOI: 10.1021/acssynbio.4c00047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 04/06/2024]
Abstract
Many plant species are grown to enable access to specific organs or tissues, such as seeds, fruits, or stems. In some cases, a value is associated with a molecule that accumulates in a single type of cell. Domestication and subsequent breeding have often increased the yields of these target products by increasing the size, number, and quality of harvested organs and tissues but also via changes to overall plant growth architecture to suit large-scale cultivation. Many of the mutations that underlie these changes have been identified in key regulators of cellular identity and function. As key determinants of yield, these regulators are key targets for synthetic biology approaches to engineer new forms and functions. However, our understanding of many plant developmental programs and cell-type specific functions is still incomplete. In this Perspective, we discuss how advances in cellular genomics together with synthetic biology tools such as biosensors and DNA-recording devices are advancing our understanding of cell-specific programs and cell fates. We then discuss advances and emerging opportunities for cell-type-specific engineering to optimize plant morphology, responses to the environment, and the production of valuable compounds.
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Affiliation(s)
- Connor Tansley
- Engineering
Biology, Earlham Institute, Norwich Research Park, Norwich, NR4 7UZ United Kingdom
- Department
of Plant Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EA United
Kingdom
| | - Nicola J. Patron
- Engineering
Biology, Earlham Institute, Norwich Research Park, Norwich, NR4 7UZ United Kingdom
- Department
of Plant Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EA United
Kingdom
| | - Sarah Guiziou
- Engineering
Biology, Earlham Institute, Norwich Research Park, Norwich, NR4 7UZ United Kingdom
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5
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Kisaka H, Chin DP, Miwa T, Hirano H, Uchiyama S, Mii M, Iyo M. Development of an efficient Agrobacterium-mediated transformation method and its application in tryptophan pathway modification in Catharanthus roseus. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2023; 40:311-320. [PMID: 38434110 PMCID: PMC10902617 DOI: 10.5511/plantbiotechnology.23.0819a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 08/19/2023] [Indexed: 03/05/2024]
Abstract
The biosynthetic pathway of Catharanthus roseus vinca alkaloids has a long research history, including not only identification of metabolic intermediates but also the mechanisms of inter-cellular transport and accumulation of biosynthesized components. Vinca alkaloids pathway begins with strictosidine, which is biosynthesized by condensing tryptamine from the tryptophan pathway and secologanin from the isoprenoid pathway. Therefore, increasing the supply of precursor tryptophan may enhance vinca alkaloid content or their metabolic intermediates. Many reports on the genetic modification of C. roseus use cultured cells or hairy roots, but few reports cover the production of transgenic plants. In this study, we first investigated a method for stably producing transgenic plants of C. roseus, then, using this technique, we modified the tryptophan metabolism system to produce transgenic plants with increased tryptophan content. Transformed plants were obtained by infecting cotyledons two weeks after sowing with Agrobacterium strain A13 containing a plant expression vector, then selecting with 1/2 B5 medium supplemented with 50 mg l-1 kanamycin and 20 mg l-1 meropenem. Sixty-eight regenerated plants were obtained from 4,200 cotyledons infected with Agrobacterium, after which genomic PCR analysis using NPTII-specific primers confirmed gene presence in 24 plants with a transformation rate of 0.6%. Furthermore, we performed transformation into C. roseus using an expression vector to join trpE8 and aroG4 genes, which are feedback-resistant mutant genes derived from Escherichia coli. The resulting transformed plants showed exactly the same morphology as the wild-type, albeit with a marked increase in tryptophan and alkaloids content, especially catharanthine in leaves.
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Affiliation(s)
- Hiroaki Kisaka
- Biosolutions Development Section, Biosolutions Labs, Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., 1-1 Suzuki-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-8681, Japan
| | - Dong Poh Chin
- Center for Environment, Health and Field Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan
| | - Tetsuya Miwa
- Biosolutions Development Section, Biosolutions Labs, Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., 1-1 Suzuki-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-8681, Japan
| | - Hiroto Hirano
- Biosolutions Development Section, Biosolutions Labs, Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., 1-1 Suzuki-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-8681, Japan
| | - Sato Uchiyama
- Biosolutions Development Section, Biosolutions Labs, Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., 1-1 Suzuki-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-8681, Japan
| | - Masahiro Mii
- Center for Environment, Health and Field Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan
| | - Mayu Iyo
- Biosolutions Development Section, Biosolutions Labs, Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., 1-1 Suzuki-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-8681, Japan
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6
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Liu H, He W, Yao X, Yan X, Wang X, Peng B, Zhang Y, Shao J, Hu X, Miao Q, Li L, Tang K. The Light- and Jasmonic Acid-Induced AaMYB108-like Positive Regulates the Initiation of Glandular Secretory Trichome in Artemisia annua L. Int J Mol Sci 2023; 24:12929. [PMID: 37629108 PMCID: PMC10455203 DOI: 10.3390/ijms241612929] [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: 07/31/2023] [Revised: 08/15/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
The plant Artemisia annua L. is famous for producing "artemisinin", which is an essential component in the treatment of malaria. The glandular secretory trichomes (GSTs) on the leaves of A. annua secrete and store artemisinin. Previous research has demonstrated that raising GST density can effectively raise artemisinin content. However, the molecular mechanism of GST initiation is not fully understood yet. In this study, we identified an MYB transcription factor, the AaMYB108-like, which is co-induced by light and jasmonic acid, and positively regulates glandular secretory trichome initiation in A. annua. Overexpression of the AaMYB108-like gene in A. annua increased GST density and enhanced the artemisinin content, whereas anti-sense of the AaMYB108-like gene resulted in the reduction in GST density and artemisinin content. Further experiments demonstrated that the AaMYB108-like gene could form a complex with AaHD8 to promote the expression of downstream AaHD1, resulting in the initiation of GST. Taken together, the AaMYB108-like gene is a positive regulator induced by light and jasmonic acid for GST initiation in A. annua.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Ling Li
- Frontiers Science Center for Transformative Molecules, Joint International Research Laboratory of Metabolic and Developmental Sciences, Plant Biotechnology Research Center, Fudan-SJTU Nottingham Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (H.L.)
| | - Kexuan Tang
- Frontiers Science Center for Transformative Molecules, Joint International Research Laboratory of Metabolic and Developmental Sciences, Plant Biotechnology Research Center, Fudan-SJTU Nottingham Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (H.L.)
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7
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Contaldo N, Zambon Y, Galbacs ZN, Miloro F, Havelda Z, Bertaccini A, Varallyay E. Small RNA Profiling of Aster Yellows Phytoplasma-Infected Catharanthus roseus Plants Showing Different Symptoms. Genes (Basel) 2023; 14:genes14051114. [PMID: 37239473 DOI: 10.3390/genes14051114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/16/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
Micropropagated Catharantus roseus plants infected with 'Candidatus Phytoplasma asteris' showed virescence symptoms, witches' broom symptoms, or became asymptomatic after their planting in pots. Nine plants were grouped into three categories according to these symptoms, which were then employed for investigation. The phytoplasma concentration, as determined by qPCR, correlated well with the severity of symptoms. To reveal the changes in the small RNA profiles in these plants, small RNA high-throughput sequencing (HTS) was carried out. The bioinformatics comparison of the micro (mi) RNA and small interfering (si) RNA profiles of the symptomatic and asymptomatic plants showed changes, which could be correlated to some of the observed symptoms. These results complement previous studies on phytoplasmas and serve as a starting point for small RNA-omic studies in phytoplasma research.
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Affiliation(s)
- Nicoletta Contaldo
- Department of Agricultural and Food Sciences, Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
- Institute for Sustainable Plant Protection (IPSP), National Research Council of Italy (CNR), 70126 Bari, Italy
| | - Yuri Zambon
- Department of Agricultural and Food Sciences, Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
| | - Zsuszanna Nagyne Galbacs
- Genomics Research Group, Department of Plant Pathology, Institute of Plant Protection, Hungarian University of Agriculture and Life Sciences, Szent-Gyorgyi Albert Street 4, 2100 Godollo, Hungary
| | - Fabio Miloro
- Plant Developmental Biology Group, Department of Plant Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Gyorgyi Albert Street 4, 2100 Godollo, Hungary
| | - Zoltan Havelda
- Plant Developmental Biology Group, Department of Plant Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Gyorgyi Albert Street 4, 2100 Godollo, Hungary
| | - Assunta Bertaccini
- Department of Agricultural and Food Sciences, Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
| | - Eva Varallyay
- Genomics Research Group, Department of Plant Pathology, Institute of Plant Protection, Hungarian University of Agriculture and Life Sciences, Szent-Gyorgyi Albert Street 4, 2100 Godollo, Hungary
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8
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Soltani N, Firouzabadi FN, Shafeinia A, Shirali M, Sadr AS. De Novo transcriptome assembly and differential expression analysis of catharanthus roseus in response to salicylic acid. Sci Rep 2022; 12:17803. [PMID: 36280677 PMCID: PMC9592577 DOI: 10.1038/s41598-022-20314-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 09/12/2022] [Indexed: 01/19/2023] Open
Abstract
The anti-cancer vinblastine and vincristine alkaloids can only be naturally found in periwinkle (Catharanthus roseus). Both of these alkaloids' accumulations are known to be influenced by salicylic acid (SA). The transcriptome data to reveal the induction effect (s) of SA, however, seem restricted at this time. In this study, the de novo approach of transcriptome assembly was performed on the RNA-Sequencing (RNA-Seq) data in C. roseus. The outcome demonstrated that SA treatment boosted the expression of all the genes in the Terpenoid Indole Alkaloids (TIAs) pathway that produces the vinblastine and vincristine alkaloids. These outcomes supported the time-course measurements of vincristine alkaloid, the end product of the TIAs pathway, and demonstrated that SA spray had a positive impact on transcription and alkaloid synthesis. Additionally, the abundance of transcription factor families including bHLH, C3H, C2H2, MYB, MYB-related, AP2/ ERF, NAC, bZIP, and WRKY suggests a role for a variety of transcription families in response to the SA stimuli. Di-nucleotide and tri-nucleotide SSRs were the most prevalent SSR markers in microsatellite analyses, making up 39% and 34% of all SSR markers, respectively, out of the 77,192 total SSRs discovered.
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Affiliation(s)
- Narges Soltani
- Production Engineering and Plant Genetics Department, Faculty of Agriculture and Natural Resources, Lorestan University, P.O. Box 465, Khorramabad, Iran
| | - Farhad Nazarian Firouzabadi
- Production Engineering and Plant Genetics Department, Faculty of Agriculture and Natural Resources, Lorestan University, P.O. Box 465, Khorramabad, Iran.
| | - Alireza Shafeinia
- Department of Plant Production & Genetics, Faculty of Agriculture, Agricultural Sciences & Natural Resources, University of Khuzestan, Mollasani, Iran
| | - Masoud Shirali
- Agri-Food and Biosciences Institute, Hillsborough, BT26 6DR, UK
- School of Biological Sciences, Queen's University Belfast, Belfast, BT9 5AJ, UK
| | - Ayeh Sadat Sadr
- South of Iran Aquaculture Research Institute (SIARI), Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Ahvaz, Iran.
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9
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Ahmadzadeh M, Keshtkar AH, Moslemkhany K, Ahmadzadeh M. Effect of the plant probiotic bacteria on terpenoid indole alkaloid biosynthesis pathway gene expression profiling, vinblastine and vincristine content in the root of Catharanthus roseus. Mol Biol Rep 2022; 49:10357-10365. [PMID: 36097118 DOI: 10.1007/s11033-022-07841-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 07/30/2022] [Accepted: 08/04/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Catharanthus roseus is the sole resource of vinblastine and vincristine, two TIAs of great interest for their powerful anticancer activities. Increasing the concentration of these alkaloids in various organs of the plant is one of the important goals in C. roseus breeding programs. Plant probiotic bacteria (PBB) act as biotic elicitors and can induce the synthesis of secondary products in plants. The purpose of this research is to study the effects of PBB on expression of the TIA biosynthetic pathway genes and the content of alkaloids in C. roseus. METHODS AND RESULTS The individual and combined effects of P. fluorescens strains 169 and A. brasilense strains Ab-101 was studied for expression of the TIA biosynthetic pathway genes (G10H, DAT, T16H and CrPRX) using qRT-PCR and the content of vinblastine and vincristine using HPLC method in roots of C. roseus. P. fluorescens. This drastically increased the content of vinblastine and vincristine alkaloids, compared to the control in the roots, to 174 and 589 (µg/g), respectively. Molecular analysis showed bacterium significantly increased the expression of more genes in the TIA biosynthetic pathway compared to the control. P. fluorescens increased the expression of the final gene of the biosynthetic pathway (CrPRX) 47.9 times compared to the control. Our findings indicate the correlation between transcriptional and metabolic outcomes. The same was true for A. brasilense. CONCLUSIONS It can be concluded that seed treatments and seedling root treatments composed of naturally occurring probiotic bacteria are likely to be widely applicable for inducing enhanced alkaloid contents in medicinal plants.
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Affiliation(s)
- M Ahmadzadeh
- Faculty of Agriculture, Buali Sina University, Hamedan, Iran
| | - A H Keshtkar
- Faculty of Agriculture, Buali Sina University, Hamedan, Iran.
| | - K Moslemkhany
- Seed and Plant Certification and Registration Institute, Agricultural Research, Education and Extension Organisation (AREEO), Tehran, Iran
| | - M Ahmadzadeh
- College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
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10
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Dudley QM, Jo S, Guerrero DAS, Chhetry M, Smedley MA, Harwood WA, Sherden NH, O'Connor SE, Caputi L, Patron NJ. Reconstitution of monoterpene indole alkaloid biosynthesis in genome engineered Nicotiana benthamiana. Commun Biol 2022; 5:949. [PMID: 36088516 PMCID: PMC9464250 DOI: 10.1038/s42003-022-03904-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/25/2022] [Indexed: 12/17/2022] Open
Abstract
Monoterpene indole alkaloids (MIAs) are a diverse class of plant natural products that include a number of medicinally important compounds. We set out to reconstitute the pathway for strictosidine, a key intermediate of all MIAs, from central metabolism in Nicotiana benthamiana. A disadvantage of this host is that its rich background metabolism results in the derivatization of some heterologously produced molecules. Here we use transcriptomic analysis to identify glycosyltransferases that are upregulated in response to biosynthetic intermediates and produce plant lines with targeted mutations in the genes encoding them. Expression of the early MIA pathway in these lines produces a more favorable product profile. Strictosidine biosynthesis was successfully reconstituted, with the best yields obtained by the co-expression of 14 enzymes, of which a major latex protein-like enzyme (MLPL) from Nepeta (catmint) is critical for improving flux through the iridoid pathway. The removal of endogenous glycosyltransferases does not impact the yields of strictosidine, highlighting that the metabolic flux of the pathway enzymes to a stable biosynthetic intermediate minimizes the need to engineer the endogenous metabolism of the host. The production of strictosidine in planta expands the range of MIA products amenable to biological synthesis.
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Affiliation(s)
- Quentin M Dudley
- Engineering Biology, Earlham Institute, Norwich Research Park, Norwich, Norfolk, NR4 7UZ, UK
| | - Seohyun Jo
- Engineering Biology, Earlham Institute, Norwich Research Park, Norwich, Norfolk, NR4 7UZ, UK
| | - Delia Ayled Serna Guerrero
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Jena, 07745, Germany
| | - Monika Chhetry
- John Innes Centre, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Mark A Smedley
- John Innes Centre, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Wendy A Harwood
- John Innes Centre, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Nathaniel H Sherden
- John Innes Centre, Norwich Research Park, Norwich, NR4 7TJ, UK
- Octagon Therapeutics Ltd, 700 Main Street, North Cambridge, MA, 02139, USA
| | - Sarah E O'Connor
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Jena, 07745, Germany
| | - Lorenzo Caputi
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Jena, 07745, Germany.
| | - Nicola J Patron
- Engineering Biology, Earlham Institute, Norwich Research Park, Norwich, Norfolk, NR4 7UZ, UK.
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11
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Sirirungruang S, Markel K, Shih PM. Plant-based engineering for production of high-valued natural products. Nat Prod Rep 2022; 39:1492-1509. [PMID: 35674317 DOI: 10.1039/d2np00017b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covering: up to March 2022Plants are a unique source of complex specialized metabolites, many of which play significant roles in human society. In many cases, however, the availability of these metabolites from naturally occurring sources fails to meet current demands. Thus, there is much interest in expanding the production capacity of target plant molecules. Traditionally, plant breeding, chemical synthesis, and microbial fermentation are considered the primary routes towards large scale production of natural products. Here, we explore the advances, challenges, and future of plant engineering as a complementary path. Although plants are an integral part of our food and agricultural systems and sustain an extensive array of chemical constituents, their complex genetics and physiology have prevented the optimal exploitation of plants as a production chassis. We highlight emerging engineering tools and scientific advances developed in recent years that have improved the prospects of using plants as a sustainable and scalable production platform. We also discuss technological limitations and overall economic outlook of plant-based production of natural products.
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Affiliation(s)
- Sasilada Sirirungruang
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA. .,Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA.,Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.,Center for Biomolecular Structure, Function and Application, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Kasey Markel
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA. .,Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA.,Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Patrick M Shih
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA. .,Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA.,Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.,Innovative Genomics Institute, University of California, Berkeley, CA, USA
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12
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Mora-Vásquez S, Wells-Abascal GG, Espinosa-Leal C, Cardineau GA, García-Lara S. Application of metabolic engineering to enhance the content of alkaloids in medicinal plants. Metab Eng Commun 2022; 14:e00194. [PMID: 35242556 PMCID: PMC8881666 DOI: 10.1016/j.mec.2022.e00194] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/27/2022] [Accepted: 02/13/2022] [Indexed: 12/22/2022] Open
Abstract
Plants are a rich source of bioactive compounds, many of which have been exploited for cosmetic, nutritional, and medicinal purposes. Through the characterization of metabolic pathways, as well as the mechanisms responsible for the accumulation of secondary metabolites, researchers have been able to increase the production of bioactive compounds in different plant species for research and commercial applications. The intent of the current review is to describe the metabolic engineering methods that have been used to transform in vitro or field-grown medicinal plants over the last decade and to identify the most effective approaches to increase the production of alkaloids. The articles summarized were categorized into six groups: endogenous enzyme overexpression, foreign enzyme overexpression, transcription factor overexpression, gene silencing, genome editing, and co-overexpression. We conclude that, because of the complex and multi-step nature of biosynthetic pathways, the approach that has been most commonly used to increase the biosynthesis of alkaloids, and the most effective in terms of fold increase, is the co-overexpression of two or more rate-limiting enzymes followed by the manipulation of regulatory genes.
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Affiliation(s)
- Soledad Mora-Vásquez
- Tecnológico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, 64849, Monterrey, Nuevo León, Mexico
| | | | - Claudia Espinosa-Leal
- Tecnológico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, 64849, Monterrey, Nuevo León, Mexico
| | - Guy A. Cardineau
- Arizona State University, Beus Center for Law and Society, Mail Code 9520, 111 E. Taylor Street, Phoenix, AZ, 85004-4467, USA
| | - Silverio García-Lara
- Tecnológico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, 64849, Monterrey, Nuevo León, Mexico
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13
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Liu Y, Patra B, Singh SK, Paul P, Zhou Y, Li Y, Wang Y, Pattanaik S, Yuan L. Terpenoid indole alkaloid biosynthesis in Catharanthus roseus: effects and prospects of environmental factors in metabolic engineering. Biotechnol Lett 2021; 43:2085-2103. [PMID: 34564757 PMCID: PMC8510960 DOI: 10.1007/s10529-021-03179-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 08/28/2021] [Indexed: 11/10/2022]
Abstract
Plants synthesize a vast array of specialized metabolites that primarily contribute to their defense and survival under adverse conditions. Many of the specialized metabolites have therapeutic values as drugs. Biosynthesis of specialized metabolites is affected by environmental factors including light, temperature, drought, salinity, and nutrients, as well as pathogens and insects. These environmental factors trigger a myriad of changes in gene expression at the transcriptional and posttranscriptional levels. The dynamic changes in gene expression are mediated by several regulatory proteins that perceive and transduce the signals, leading to up- or down-regulation of the metabolic pathways. Exploring the environmental effects and related signal cascades is a strategy in metabolic engineering to produce valuable specialized metabolites. However, mechanistic studies on environmental factors affecting specialized metabolism are limited. The medicinal plant Catharanthus roseus (Madagascar periwinkle) is an important source of bioactive terpenoid indole alkaloids (TIAs), including the anticancer therapeutics vinblastine and vincristine. The emerging picture shows that various environmental factors significantly alter TIA accumulation by affecting the expression of regulatory and enzyme-encoding genes in the pathway. Compared to our understanding of the TIA pathway in response to the phytohormone jasmonate, the impacts of environmental factors on TIA biosynthesis are insufficiently studied and discussed. This review thus focuses on these aspects and discusses possible strategies for metabolic engineering of TIA biosynthesis. PURPOSE OF WORK: Catharanthus roseus is a rich source of bioactive terpenoid indole alkaloids (TIAs). The objective of this work is to present a comprehensive account of the influence of various biotic and abiotic factors on TIA biosynthesis and to discuss possible strategies to enhance TIA production through metabolic engineering.
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Affiliation(s)
- Yongliang Liu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
| | - Barunava Patra
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
| | - Sanjay Kumar Singh
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
| | - Priyanka Paul
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
| | - Yan Zhou
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
| | - Yongqing Li
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Ying Wang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Sitakanta Pattanaik
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
| | - Ling Yuan
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546 USA
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14
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Changxing L, Galani S, Hassan FU, Rashid Z, Naveed M, Fang D, Ashraf A, Qi W, Arif A, Saeed M, Chishti AA, Jianhua L. Biotechnological approaches to the production of plant-derived promising anticancer agents: An update and overview. Biomed Pharmacother 2020; 132:110918. [PMID: 33254434 DOI: 10.1016/j.biopha.2020.110918] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 09/28/2020] [Accepted: 10/12/2020] [Indexed: 02/07/2023] Open
Abstract
The plant kingdom is a rich source of bioactive compounds, many of which have been used since pre-history for their therapeutic properties to treat a range of illnesses. These metabolites have recently attracted attention to their antineoplastic activities to treat various cancers relying on different mechanisms. Some of these molecules are glycosides, which have proven useful as anti-cancer agents, namely podophyllotoxin (PPT) anaryltetralin lignan or alkaloids. There are three primary forms of alkaloids, such as indole alkaloids (vincristine and vinblastine from Catharanthus roseus), quinoline alkaloid (camptothecin from Camptotheca acuminata), and diterpenoid alkaloid (taxol and it's analogous from Taxus and Corylus species). This review considers various plant biotechnology approaches used to enhance the production of these anticancer molecules in different species. In this regard, many in vitro culture techniques such as stimulation of suspension culture and hairy roots are being used to investigate the effects of plant growth regulators and elicitors on various explants.
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Affiliation(s)
- Li Changxing
- Department of Human Anatomy, Medical College of Qinghai University, Xining, 810000,P.R China; College of Animal Science and Technology, Northwest A & F University, Yangling, Shanxi Province,712100, P.R China
| | - Saddia Galani
- The Karachi Institute of Biotechnology and Genetic Engineering (KIBGE), University of Karachi, Karachi, Pakistan
| | - Faiz-Ul Hassan
- Institute of Animal and Dairy Sciences, Faculty of Animal Husbandry, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
| | - Zubia Rashid
- The Karachi Institute of Biotechnology and Genetic Engineering (KIBGE), University of Karachi, Karachi, Pakistan
| | - Muhammad Naveed
- School of Pharmacy, Nanjing Medical University, Jiangsu Province, Nanjing, 211166, P.R China
| | - Daidong Fang
- Department of Human Anatomy, Medical College of Qinghai University, Xining, 810000,P.R China
| | - Asma Ashraf
- Department of Zoology, G. C. University, Faisalabad, Pakistan
| | - Wang Qi
- Department of Human Anatomy, Medical College of Qinghai University, Xining, 810000,P.R China
| | - Afsheen Arif
- The Karachi Institute of Biotechnology and Genetic Engineering (KIBGE), University of Karachi, Karachi, Pakistan
| | - Muhammad Saeed
- Faculty of Animal Production and Technology, The Cholistan University of Veterinary and Animal Sciences, Bahawalpur, 6300, Pakistan
| | - Arif Ali Chishti
- The Karachi Institute of Biotechnology and Genetic Engineering (KIBGE), University of Karachi, Karachi, Pakistan
| | - Li Jianhua
- Department of Human Anatomy, Medical College of Qinghai University, Xining, 810000,P.R China.
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15
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Soltani N, Nazarian-Firouzabadi F, Shafeinia A, Sadr AS, Shirali M. The expression of Terpenoid Indole Alkaloid (TIAs) pathway genes in Catharanthus roseus in response to salicylic acid treatment. Mol Biol Rep 2020; 47:7009-7016. [PMID: 32886329 DOI: 10.1007/s11033-020-05759-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 08/28/2020] [Indexed: 01/22/2023]
Abstract
Vinblastine and vincristine are two important anti-cancer drugs that are synthesized by the Terpenoid Indole Alkaloids (TIAs) pathway in periwinkle (Catharanthus roseus). The major challenge in the pharmaceutical industry is the low production rate of these Alkaloids. TIA pathway is affected by elicitors, such as salicylic acid (SA). This study aimed to investigate the expression pattern of some key genes in TIAs pathway under SA treatment. Foliar application of SA (0.01 and 0.1 mM) was used and leaves samples were taken at 0, 12, 18, 24 and 48 h after the treatment. qRT-PCR was used to investigate the expression pattern of Chorismate mutase (Cm), tryptophan decarboxylase (Tdc), Geraniol-10-hydroxylase (G10h), Secologanin synthase (Sls), Strictosidine synthase (Str), Desacetoxyvindoline-4-hydroxylase (D4h) and Deacetylvindoline-4-O-acetyltransferase (Dat) genes, following the SA treatment. The results of this experiment showed that transcript levels of Tdc, G10h, Sls, Str, D4h and Dat genes were significantly up-regulated in both SA concentration treatments. Furthermore, the highest transcript levels of Dat was observed after 48 h of the SA treatments. qRT-PCR results suggests that SA induces transcription of major genes involved in Alkaloids biosynthesis in Catharanthus roseus. It can be concluded that up-regulation of Tdc, G10h, Sls, Str, D4h and Dat genes can result in a higher production rate of Vinblastine and vincristine Alkaloids.
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Affiliation(s)
- Narges Soltani
- Production Engineering and Plant Genetics Department, Faculty of Agriculture, Lorestan University, P.O. Box 465, Khorramabad, Iran
| | - Farhad Nazarian-Firouzabadi
- Production Engineering and Plant Genetics Department, Faculty of Agriculture, Lorestan University, P.O. Box 465, Khorramabad, Iran.
| | - Alireza Shafeinia
- Production Engineering and Plant Genetics Department, Ramin Agriculture and Natural Resource University of Khuzestan, Mollasani, Iran
| | - Ayeh Sadat Sadr
- Aquaculture Research Center-South of Iran, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Ahvaz, Iran
| | - Masoud Shirali
- Agri-Food and Biosciences Institute, Hillsborough, BT26 6DR, UK.,School of Biological Sciences, Queen's University Belfast, Belfast, BT9 5AJ, UK
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16
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Fraser VN, Philmus B, Megraw M. Metabolomics analysis reveals both plant variety and choice of hormone treatment modulate vinca alkaloid production in Catharanthus roseus. PLANT DIRECT 2020; 4:e00267. [PMID: 33005857 PMCID: PMC7520646 DOI: 10.1002/pld3.267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 08/18/2020] [Accepted: 08/24/2020] [Indexed: 05/09/2023]
Abstract
The medicinal plant Catharanthus roseus produces numerous secondary metabolites of interest for the treatment of many diseases - most notably for the terpene indole alkaloid (TIA) vinblastine, which is used in the treatment of leukemia and Hodgkin's lymphoma. Historically, methyl jasmonate (MeJA) has been used to induce TIA production, but in the past, this has only been investigated in whole seedlings, cell culture, or hairy root culture. This study examines the effects of the phytohormones MeJA and ethylene on the induction of TIA biosynthesis and accumulation in the shoots and roots of 8-day-old seedlings of two varieties of C. roseus. Using LCMS and RT-qPCR, we demonstrate the importance of variety selection, as we observe markedly different induction patterns of important TIA precursor compounds. Additionally, both phytohormone choice and concentration have significant effects on TIA biosynthesis. Finally, our study suggests that several early-induction pathway steps as well as pathway-specific genes are likely to be transcriptionally regulated. Our findings highlight the need for a complete set of'omics resources in commonly used C. roseus varieties and the need for caution when extrapolating results from one cultivar to another.
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Affiliation(s)
- Valerie N. Fraser
- Molecular and Cellular Biology ProgramOregon State UniversityCorvallisORUSA
- Department of Botany and Plant PathologyOregon State UniversityCorvallisORUSA
| | - Benjamin Philmus
- Department of Pharmaceutical SciencesOregon State UniversityCorvallisORUSA
- Center for Genome Research and BiocomputingOregon State UniversityCorvallisORUSA
| | - Molly Megraw
- Department of Botany and Plant PathologyOregon State UniversityCorvallisORUSA
- Center for Genome Research and BiocomputingOregon State UniversityCorvallisORUSA
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17
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Present status of Catharanthus roseus monoterpenoid indole alkaloids engineering in homo- and hetero-logous systems. Biotechnol Lett 2019; 42:11-23. [DOI: 10.1007/s10529-019-02757-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 11/07/2019] [Indexed: 10/25/2022]
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18
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Mortensen S, Bernal-Franco D, Cole LF, Sathitloetsakun S, Cram EJ, Lee-Parsons CWT. EASI Transformation: An Efficient Transient Expression Method for Analyzing Gene Function in Catharanthus roseus Seedlings. FRONTIERS IN PLANT SCIENCE 2019; 10:755. [PMID: 31263474 PMCID: PMC6585625 DOI: 10.3389/fpls.2019.00755] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 05/24/2019] [Indexed: 05/07/2023]
Abstract
The Catharanthus roseus plant is the exclusive source of the valuable anticancer terpenoid indole alkaloids, vinblastine (VB) and vincristine (VC). The recent availability of transcriptome and genome resources for C. roseus necessitates a fast and reliable method for studying gene function. In this study, we developed an Agrobacterium-mediated transient expression method to enable the functional study of genes rapidly in planta, conserving the compartmentalization observed in the VB and VC pathway. We focused on (1) improving the transformation method (syringe versus vacuum agroinfiltration) and cultivation conditions (seedling age, Agrobacterium density, and time point of maximum transgene expression), (2) improving transformation efficiency through the constitutive expression of the virulence genes and suppressing RNA silencing mechanisms, and (3) improving the vector design by incorporating introns, quantitative and qualitative reporter genes (luciferase and GUS genes), and accounting for transformation heterogeneity across the tissue using an internal control. Of all the parameters tested, vacuum infiltration of young seedlings (10-day-old, harvested 3 days post-infection) resulted in the strongest increase in transgene expression, at 18 - 57 fold higher than either vacuum or syringe infiltration of other seedling ages. Endowing the A. tumefaciens strain with the mutated VirGN54D or silencing suppressors within the same plasmid as the reporter gene further increased expression by 2 - 10 fold. For accurate measurement of promoter transactivation or activity, we included an internal control to normalize the differences in plant mass and transformation efficiency. Including the normalization gene (Renilla luciferase) on the same plasmid as the reporter gene (firefly luciferase) consistently yielded a high signal and a high correlation between RLUC and FLUC. As proof of principle, we applied this approach to investigate the regulation of the CroSTR1 promoter with the well-known activator ORCA3 and repressor ZCT1. Our method demonstrated the quantitative assessment of both the activation and repression of promoter activity in C. roseus. Our efficient Agrobacterium-mediated seedling infiltration (EASI) protocol allows highly efficient, reproducible, and homogenous transformation of C. roseus cotyledons and provides a timely tool for the community to rapidly assess the function of genes in planta, particularly for investigating how transcription factors regulate terpenoid indole alkaloid biosynthesis.
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Affiliation(s)
- Samuel Mortensen
- Department of Biology, Northeastern University, Boston, MA, United States
| | - Diana Bernal-Franco
- Department of Biology, Northeastern University, Boston, MA, United States
- Department of Chemical Engineering, Northeastern University, Boston, MA, United States
| | - Lauren F. Cole
- Department of Bioengineering, Northeastern University, Boston, MA, United States
| | - Suphinya Sathitloetsakun
- Department of Biology, Northeastern University, Boston, MA, United States
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, United States
| | - Erin J. Cram
- Department of Biology, Northeastern University, Boston, MA, United States
| | - Carolyn W. T. Lee-Parsons
- Department of Chemical Engineering, Northeastern University, Boston, MA, United States
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, United States
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19
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Effect of abiotic elicitation and pathway precursors feeding over terpenoid indole alkaloids production in multiple shoot and callus cultures of Catharanthus roseus. Biologia (Bratisl) 2019. [DOI: 10.2478/s11756-019-00202-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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20
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Sharma A, Verma P, Mathur A, Mathur AK. Overexpression of tryptophan decarboxylase and strictosidine synthase enhanced terpenoid indole alkaloid pathway activity and antineoplastic vinblastine biosynthesis in Catharanthus roseus. PROTOPLASMA 2018; 255:1281-1294. [PMID: 29508069 DOI: 10.1007/s00709-018-1233-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 02/26/2018] [Indexed: 05/26/2023]
Abstract
Terpenoid indole alkaloid (TIA) biosynthetic pathway of Catharanthus roseus possesses the major attention in current metabolic engineering efforts being the sole source of highly expensive antineoplastic molecules vinblastine and vincristine. The entire TIA pathway is fairly known at biochemical and genetic levels except the pathway steps leading to biosynthesis of catharanthine and tabersonine. To increase the in-planta yield of these antineoplastic metabolites for the pharmaceutical and drug industry, extensive plant tissue culture-based studies were performed to provide alternative production systems. However, the strict spatiotemporal developmental regulation of TIA biosynthesis has restricted the utility of these cultures for large-scale production. Therefore, the present study was performed to enhance the metabolic flux of TIA pathway towards the biosynthesis of vinblastine by overexpressing two upstream TIA pathway genes, tryptophan decarboxylase (CrTDC) and strictosidine synthase (CrSTR), at whole plant levels in C. roseus. Whole plant transgenic of C. roseus was developed using Agrobacterium tumefaciens LBA1119 strain having CrTDC and CrSTR gene cassette. Developed transgenic lines demonstrated up to twofold enhanced total alkaloid production with maximum ninefold increase in vindoline and catharanthine, and fivefold increased vinblastine production. These lines recorded a maximum of 38-fold and 65-fold enhanced transcript levels of CrTDC and CrSTR genes, respectively.
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Affiliation(s)
- Abhishek Sharma
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CIMAP), Council of Scientific and Industrial Research, PO CIMAP, Kukrail Picnic Spot Road, Lucknow, 226015, India
| | - Priyanka Verma
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CIMAP), Council of Scientific and Industrial Research, PO CIMAP, Kukrail Picnic Spot Road, Lucknow, 226015, India
- Division of Biochemical Sciences, National Chemical Laboratory (NCL), Council of Scientific and Industrial Research, Homi Bhabha Road, Pashan, Pune, 411008, India
| | - Archana Mathur
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CIMAP), Council of Scientific and Industrial Research, PO CIMAP, Kukrail Picnic Spot Road, Lucknow, 226015, India
| | - Ajay Kumar Mathur
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CIMAP), Council of Scientific and Industrial Research, PO CIMAP, Kukrail Picnic Spot Road, Lucknow, 226015, India.
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21
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An engineered combinatorial module of transcription factors boosts production of monoterpenoid indole alkaloids in Catharanthus roseus. Metab Eng 2018; 48:150-162. [PMID: 29852273 DOI: 10.1016/j.ymben.2018.05.016] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/24/2018] [Accepted: 05/25/2018] [Indexed: 11/21/2022]
Abstract
To fend off microbial pathogens and herbivores, plants have evolved a wide range of defense strategies such as physical barriers, or the production of anti-digestive proteins or bioactive specialized metabolites. Accumulation of the latter compounds is often regulated by transcriptional activation of the biosynthesis pathway genes by the phytohormone jasmonate-isoleucine. Here, we used our recently developed flower petal transformation method in the medicinal plant Catharanthus roseus to shed light on the complex regulatory mechanisms steering the jasmonate-modulated biosynthesis of monoterpenoid indole alkaloids (MIAs), to which the anti-cancer compounds vinblastine and vincristine belong. By combinatorial overexpression of the transcriptional activators BIS1, ORCA3 and MYC2a, we provide an unprecedented insight into the modular transcriptional control of MIA biosynthesis. Furthermore, we show that the expression of an engineered de-repressed MYC2a triggers a tremendous reprogramming of the MIA pathway, finally leading to massively increased accumulation of at least 23 MIAs. The current study unveils an innovative approach for future metabolic engineering efforts for the production of valuable bioactive plant compounds in non-model plants.
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22
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Sharma A, Verma P, Mathur A, Mathur AK. Genetic engineering approach using early Vinca alkaloid biosynthesis genes led to increased tryptamine and terpenoid indole alkaloids biosynthesis in differentiating cultures of Catharanthus roseus. PROTOPLASMA 2018; 255:425-435. [PMID: 28808798 DOI: 10.1007/s00709-017-1151-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 08/04/2017] [Indexed: 06/07/2023]
Abstract
Catharanthus roseus today occupies the central position in ongoing metabolic engineering efforts in medicinal plants. The entire multi-step biogenetic pathway of its very expensive anticancerous alkaloids vinblastine and vincristine is fairly very well dissected at biochemical and gene levels except the pathway steps leading to biosynthesis of monomeric alkaloid catharanthine and tabersonine. In order to enhance the plant-based productivity of these pharma molecules for the drug industry, cell and tissue cultures of C. roseus are being increasingly tested to provide their alternate production platforms. However, a rigid developmental regulation and involvement of different cell, tissues, and organelles in the synthesis of these alkaloids have restricted the utility of these cultures. Therefore, the present study was carried out with pushing the terpenoid indole alkaloid pathway metabolic flux towards dimeric alkaloids vinblastine and vincristine production by over-expressing the two upstream pathway genes tryptophan decarboxylase and strictosidine synthase at two different levels of cellular organization viz. callus and leaf tissues. The transformation experiments were carried out using Agrobacterium tumefaciens LBA1119 strain having tryptophan decarboxylase and strictosidine synthase gene cassette. The callus transformation reported a maximum of 0.027% dry wt vindoline and 0.053% dry wt catharanthine production, whereas, the transiently transformed leaves reported a maximum of 0.30% dry wt vindoline, 0.10% catharanthine, and 0.0027% dry wt vinblastine content.
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Affiliation(s)
- Abhishek Sharma
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CIMAP), Council of Scientific and Industrial Research, PO CIMAP, Kukrail Picnic Spot Road, Lucknow, 226015, India
| | - Priyanka Verma
- Division of Biochemical Science, National Chemical Laboratory (NCL), Council of Scientific and Industrial Research, Homi Bhabha Road, Pashan, Pune, 411008, India
| | - Archana Mathur
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CIMAP), Council of Scientific and Industrial Research, PO CIMAP, Kukrail Picnic Spot Road, Lucknow, 226015, India
| | - Ajay Kumar Mathur
- Department of Plant Biotechnology, Central Institute of Medicinal and Aromatic Plants (CIMAP), Council of Scientific and Industrial Research, PO CIMAP, Kukrail Picnic Spot Road, Lucknow, 226015, India.
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23
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Kumar SR, Shilpashree HB, Nagegowda DA. Terpene Moiety Enhancement by Overexpression of Geranyl(geranyl) Diphosphate Synthase and Geraniol Synthase Elevates Monomeric and Dimeric Monoterpene Indole Alkaloids in Transgenic Catharanthus roseus. FRONTIERS IN PLANT SCIENCE 2018; 9:942. [PMID: 30034406 PMCID: PMC6043680 DOI: 10.3389/fpls.2018.00942] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 06/12/2018] [Indexed: 05/07/2023]
Abstract
Catharanthus roseus is the sole source of two of the most important anticancer monoterpene indole alkaloids (MIAs), vinblastine and vincristine and their precursors, vindoline and catharanthine. The MIAs are produced from the condensation of precursors derived from indole and terpene secoiridoid pathways. It has been previously reported that the terpene moiety limits MIA biosynthesis in C. roseus. Here, to overcome this limitation and enhance MIAs levels in C. roseus, bifunctional geranyl(geranyl) diphosphate synthase [G(G)PPS] and geraniol synthase (GES) that provide precursors for early steps of terpene moiety (secologanin) formation, were overexpressed transiently by agroinfiltration and stably by Agrobacterium-mediated transformation. Both transient and stable overexpression of G(G)PPS and co-expression of G(G)PPS+GES significantly enhanced the accumulation of secologanin, which in turn elevated the levels of monomeric MIAs. In addition, transgenic C. roseus plants exhibited increased levels of root alkaloid ajmalicine. The dimeric alkaloid vinblastine was enhanced only in G(G)PPS but not in G(G)PPS+GES transgenic lines that correlated with transcript levels of peroxidase-1 (PRX1) involved in coupling of vindoline and catharanthine into 3',4'-anhydrovinblastine, the immediate precursor of vinblastine. Moreover, first generation (T1) lines exhibited comparable transcript and metabolite levels to that of T0 lines. In addition, transgenic lines displayed normal growth similar to wild-type plants indicating that the bifunctional G(G)PPS enhanced flux toward both primary and secondary metabolism. These results revealed that improved availability of early precursors for terpene moiety biosynthesis enhanced production of MIAs in C. roseus at the whole plant level. This is the first report demonstrating enhanced accumulation of monomeric and dimeric MIAs including root MIA ajmalicine in C. roseus through transgenic approaches.
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Alam P, Khan ZA, Abdin MZ, Khan JA, Ahmad P, Elkholy SF, Sharaf-Eldin MA. Efficient regeneration and improved sonication-assisted Agrobacterium transformation (SAAT) method for Catharanthus roseus. 3 Biotech 2017; 7:26. [PMID: 28401464 PMCID: PMC5388651 DOI: 10.1007/s13205-016-0593-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 12/23/2016] [Indexed: 11/30/2022] Open
Abstract
Catharanthus roseus is an important medicinal plant known for its pharmacological qualities such as antimicrobial, anticancerous, antifeedant, antisterility, antidiabetic activities. More than 130 bioactive compounds like vinblastine, vindoline and vincristine have been synthesized in this plant. Extensive studies have been carried out for optimization regeneration and transformation protocols. Most of the protocol described are laborious and time-consuming. Due to sophisticated protocol of regeneration and genetic transformation, the production of these bioactive molecules is less and not feasible to be commercialized worldwide. Here we have optimized the efficient protocol for regeneration and transformation to minimize the time scale and enhance the transformation frequency through Agrobacterium and sonication-assisted transformation (SAAT) method. In this study, hypocotyl explants responded best for maximal production of transformed shoots. The callus percentage were recorded 52% with 1.0 mg L−1 (BAP) and 0.5 mg L−1 (NAA) while 80% shoot percentage obtained with 4.0 mg L−1 (BAP) and 0.05 mg L−1 (NAA). The microscopic studies revealed that the expression of GFP was clearly localized in leaf tissue of the C. roseus after transformation of pRepGFP0029 construct. Consequently, transformation efficiency was revealed on the basis of GFP localization. The transformation efficiency of SAAT method was 6.0% comparable to 3.5% as conventional method. Further, PCR analysis confirmed the integration of the nptII gene in the transformed plantlets of C. roseus.
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Affiliation(s)
- Pravej Alam
- Sara Alghonaim Research Chair (SRC), Biology Department, College of Science and Humanities, Prince Sattam bin Abdulaziz University (PSAU), Alkharj, 11942, Kingdom of Saudi Arabia.
- Department of Biosciences, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi, 110025, India.
| | - Zainul Abdeen Khan
- Department of Biosciences, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Malik Zainul Abdin
- Department of Biotechnology, Faculty of Science, Centre for Transgenic Plant Development, Jamia Hamdard, New Delhi, 110062, India
| | - Jawaid A Khan
- Department of Biosciences, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Parvaiz Ahmad
- Department of Botany and Microbiology, Faculty of Science, King Saud University, Riyadh, 11451, Saudi Arabia
- Department of Botany, S.P. College, Srinagar, 190001, Jammu and Kashmir, India
| | - Shereen F Elkholy
- Sara Alghonaim Research Chair (SRC), Biology Department, College of Science and Humanities, Prince Sattam bin Abdulaziz University (PSAU), Alkharj, 11942, Kingdom of Saudi Arabia
- Plant Transformation and Biopharmaceuticals Lab, Agricultural Genetic Engineering Research Institute (AGERI), Agricultural Research Centre (ARC), Giza, Egypt
| | - Mahmoud A Sharaf-Eldin
- Sara Alghonaim Research Chair (SRC), Biology Department, College of Science and Humanities, Prince Sattam bin Abdulaziz University (PSAU), Alkharj, 11942, Kingdom of Saudi Arabia
- Department of Medicinal and Aromatic Plants Research, National Research Centre (NRC), Cairo, 12622, Egypt
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Khan S, ur Rahman L. Pathway Modulation of Medicinal and Aromatic Plants Through Metabolic Engineering Using Agrobacterium tumefaciens. REFERENCE SERIES IN PHYTOCHEMISTRY 2017. [DOI: 10.1007/978-3-319-28669-3_15] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Zhao L, Shao Z, Shanks JV. Anticancer Drugs. Ind Biotechnol (New Rochelle N Y) 2016. [DOI: 10.1002/9783527807833.ch8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Le Zhao
- Iowa State University; Department of Chemical and Biological Engineering; 4140 Biorenewables Research Laboratory, 617 Bissell Road Ames 50011 IA USA
| | - Zengyi Shao
- Iowa State University; Department of Chemical and Biological Engineering; 4140 Biorenewables Research Laboratory, 617 Bissell Road Ames 50011 IA USA
| | - Jacqueline V Shanks
- Iowa State University; Department of Chemical and Biological Engineering; 4140 Biorenewables Research Laboratory, 617 Bissell Road Ames 50011 IA USA
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Benyammi R, Paris C, Khelifi-Slaoui M, Zaoui D, Belabbassi O, Bakiri N, Meriem Aci M, Harfi B, Malik S, Makhzoum A, Desobry S, Khelifi L. Screening and kinetic studies of catharanthine and ajmalicine accumulation and their correlation with growth biomass in Catharanthus roseus hairy roots. PHARMACEUTICAL BIOLOGY 2016; 54:2033-2043. [PMID: 26983347 DOI: 10.3109/13880209.2016.1140213] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Context Catharanthus roseus (L.) G. Don (Apocynaceae) is still one of the most important sources of terpene indole alkaloids including anticancer and hypertensive drugs as vincristine and vinblastine. These final compounds have complex pathway and many enzymes are involved in their biosynthesis. Indeed, ajmalicine and catharanthine are important precursors their increase can lead to enhance levels of molecules of interest. Objective This study aims at selecting the highest yield of hairy root line(s) and at identifying best times for further treatments. We study kinetics growth and alkaloids (ajmalicine and catharanthine) accumulation of three selected hairy root lines during the culture cycle in order to determine the relationship between biomass production and alkaloids accumulation. Materials and methods Comparative analysis has been carried out on three selected lines of Catharanthus roseus hairy roots (LP10, LP21 and L54) for their kinetics of growth and the accumulation of ajamalicine and catharanthine, throughout a 35-day culture cycle. The methanolic extract for each line in different times during culture cycle is analyzed using liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). Results Maximum accumulation of the alkaloids is recorded for LP10 line in which the peak of ajmalicine and catharanthine accumulation reached to 3.8 and 4.3 mg/g dry weight (DW), respectively. This increase coincides with an exponential growth phase. Discussion and conclusion Our results suggest that the evolution of accumulation of ajmalicine and catharanthine are positively correlated with the development of the biomass growth. Significantly, for LP10 line the most promising line to continue optimizing the production of TIAs. Additionally, the end of exponential phase remains the best period for elicitor stimuli.
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Affiliation(s)
| | - Cédric Paris
- b LIBio, Université De Lorraine - ENSAIA, Vandoeuvre-lès-Nancy , France
| | | | | | | | | | | | | | - Sonia Malik
- c Health Sciences Graduate Program, Biological and Health Sciences Centre , Federal University of Maranhão , São Luís , MA , Brazil
| | - Abdullah Makhzoum
- d Department of Biology , The University of Western Ontario , London , Ontario , Canada
| | - Stéphane Desobry
- b LIBio, Université De Lorraine - ENSAIA, Vandoeuvre-lès-Nancy , France
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Fu Q, Li C, Tang M, Tao YB, Pan BZ, Zhang L, Niu L, He H, Wang X, Xu ZF. An efficient protocol for Agrobacterium-mediated transformation of the biofuel plant Jatropha curcas by optimizing kanamycin concentration and duration of delayed selection. PLANT BIOTECHNOLOGY REPORTS 2015; 9:405-416. [PMID: 26640597 PMCID: PMC4662722 DOI: 10.1007/s11816-015-0377-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 10/17/2015] [Indexed: 05/04/2023]
Abstract
Jatropha curcas is considered a potential biodiesel feedstock crop. Currently, the value of J. curcas is limited because its seed yield is generally low. Transgenic modification is a promising approach to improve the seed yield of J. curcas. Although Agrobacterium-mediated genetic transformation of J. curcas has been pursued for several years, the transformation efficiency remains unsatisfying. Therefore, a highly efficient and simple Agrobacterium-mediated genetic transformation method for J. curcas should be developed. We examined and optimized several key factors that affect genetic transformation of J. curcas in this study. The results showed that the EHA105 strain was superior to the other three Agrobacterium tumefaciens strains for infecting J. curcas cotyledons, and the supplementation of 100 mM acetosyringone slightly increased the transient transformation frequency. Use of the appropriate inoculation method, optimal kanamycin concentration and appropriate duration of delayed selection also improved the efficiency of stable genetic transformation of J. curcas. The percentage of β-glucuronidase positive J. curcas shoots reached as high as 56.0 %, and 1.70 transformants per explant were obtained with this protocol. Furthermore, we optimized the root-inducing medium to achieve a rooting rate of 84.9 %. Stable integration of the T-DNA into the genomes of putative transgenic lines was confirmed by PCR and Southern blot analysis. Using this improved protocol, a large number of transgenic J. curcas plantlets can be routinely obtained within approximately 4 months. The detailed information provided here for each step of J. curcas transformation should enable successful implementation of this transgenic technology in other laboratories.
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Affiliation(s)
- Qiantang Fu
- />Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303 Yunnan China
| | - Chaoqiong Li
- />Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303 Yunnan China
- />College of Life Science and Agriculture, Zhoukou Normal University, Zhoukou, 466001 Henan China
| | - Mingyong Tang
- />Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303 Yunnan China
- />University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Yan-Bin Tao
- />Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303 Yunnan China
| | - Bang-Zhen Pan
- />Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303 Yunnan China
| | - Lu Zhang
- />Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303 Yunnan China
| | - Longjian Niu
- />Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303 Yunnan China
| | - Huiying He
- />Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303 Yunnan China
| | - Xiulan Wang
- />Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303 Yunnan China
| | - Zeng-Fu Xu
- />Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303 Yunnan China
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Mayavan S, Subramanyam K, Jaganath B, Sathish D, Manickavasagam M, Ganapathi A. Agrobacterium-mediated in planta genetic transformation of sugarcane setts. PLANT CELL REPORTS 2015; 34:1835-48. [PMID: 26152769 DOI: 10.1007/s00299-015-1831-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Revised: 06/18/2015] [Accepted: 06/23/2015] [Indexed: 05/20/2023]
Abstract
An efficient, reproducible, and genotype-independent in planta transformation has been developed for sugarcane using setts as explant. Traditional Agrobacterium-mediated genetic transformation and in vitro regeneration of sugarcane is a complex and time-consuming process. Development of an efficient Agrobacterium-mediated transformation protocol, which can produce a large number of transgenic plants in short duration is advantageous. Hence, in the present investigation, we developed a tissue culture-independent in planta genetic transformation system for sugarcane using setts collected from 6-month-old sugarcane plants. The sugarcane setts (nodal cuttings) were infected with three Agrobacterium tumefaciens strains harbouring pCAMBIA 1301-bar plasmid, and the transformants were selected against BASTA(®). Several parameters influencing the in planta transformation such as A. tumefaciens strains, acetosyringone, sonication and exposure to vacuum pressure, have been evaluated. The putatively transformed sugarcane plants were screened by GUS histochemical assay. Sugarcane setts were pricked and sonicated for 6 min and vacuum infiltered for 2 min at 500 mmHg in A. tumefaciens C58C1 suspension containing 100 µM acetosyringone, 0.1 % Silwett L-77 showed the highest transformation efficiency of 29.6 % (with var. Co 62175). The three-stage selection process completely eliminated the chimeric transgenic sugarcane plants. Among the five sugarcane varieties evaluated using the standardized protocol, var. Co 6907 showed the maximum transformation efficiency (32.6 %). The in planta transformation protocol described here is applicable to transfer the economically important genes into different varieties of sugarcane in relatively short time.
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Affiliation(s)
- Subramanian Mayavan
- Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
- Center for Bioenergy, Cooperative Research, Lincoln University of Missouri, Jefferson City, MO, 65101, USA
| | - Kondeti Subramanyam
- Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
- Laboratory of Biochemistry and Glycobiology, Department of Molecular Biotechnology, Ghent University, Coupure links 653, 9000, Ghent, Belgium
| | - Balusamy Jaganath
- Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Dorairaj Sathish
- Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Markandan Manickavasagam
- Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Andy Ganapathi
- Department of Biotechnology and Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India.
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Dugé de Bernonville T, Clastre M, Besseau S, Oudin A, Burlat V, Glévarec G, Lanoue A, Papon N, Giglioli-Guivarc'h N, St-Pierre B, Courdavault V. Phytochemical genomics of the Madagascar periwinkle: Unravelling the last twists of the alkaloid engine. PHYTOCHEMISTRY 2015; 113:9-23. [PMID: 25146650 DOI: 10.1016/j.phytochem.2014.07.023] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 07/11/2014] [Accepted: 07/15/2014] [Indexed: 05/12/2023]
Abstract
The Madagascar periwinkle produces a large palette of Monoterpenoid Indole Alkaloids (MIAs), a class of complex alkaloids including some of the most valuable plant natural products with precious therapeutical values. Evolutionary pressure on one of the hotspots of biodiversity has obviously turned this endemic Malagasy plant into an innovative alkaloid engine. Catharanthus is a unique taxon producing vinblastine and vincristine, heterodimeric MIAs with complex stereochemistry, and also manufactures more than 100 different MIAs, some shared with the Apocynaceae, Loganiaceae and Rubiaceae members. For over 60 years, the quest for these powerful anticancer drugs has inspired biologists, chemists, and pharmacists to unravel the chemistry, biochemistry, therapeutic activity, cell and molecular biology of Catharanthus roseus. Recently, the "omics" technologies have fuelled rapid progress in deciphering the last secret of strictosidine biosynthesis, the central precursor opening biosynthetic routes to several thousand MIA compounds. Dedicated C. roseus transcriptome, proteome and metabolome databases, comprising organ-, tissue- and cell-specific libraries, and other phytogenomic resources, were developed for instance by PhytoMetaSyn, Medicinal Plant Genomic Resources and SmartCell consortium. Tissue specific library screening, orthology comparison in species with or without MIA-biochemical engines, clustering of gene expression profiles together with various functional validation strategies, largely contributed to enrich the toolbox for plant synthetic biology and metabolic engineering of MIA biosynthesis.
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Affiliation(s)
- Thomas Dugé de Bernonville
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Marc Clastre
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Sébastien Besseau
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Audrey Oudin
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Vincent Burlat
- Université de Toulouse, UPS, UMR 5546, Laboratoire de Recherche en Sciences Végétales, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France; CNRS, UMR 5546, BP 42617 Auzeville, F-31326 Castanet-Tolosan, France
| | - Gaëlle Glévarec
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Arnaud Lanoue
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Nicolas Papon
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | | | - Benoit St-Pierre
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France
| | - Vincent Courdavault
- Université François-Rabelais de Tours, EA2106 "Biomolécules et Biotechnologies Végétales", Tours, France.
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Arun M, Subramanyam K, Mariashibu TS, Theboral J, Shivanandhan G, Manickavasagam M, Ganapathi A. Application of sonication in combination with vacuum infiltration enhances the Agrobacterium-mediated genetic transformation in Indian soybean cultivars. Appl Biochem Biotechnol 2015; 175:2266-87. [PMID: 25480345 DOI: 10.1007/s12010-014-1360-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 11/10/2014] [Indexed: 01/28/2023]
Abstract
Soybean is a recalcitrant crop to Agrobacterium-mediated genetic transformation. Development of highly efficient, reproducible, and genotype-independent transformation protocol is highly desirable for soybean genetic improvement. Hence, an improved Agrobacterium-mediated genetic transformation protocol has been developed for cultivar PK 416 by evaluating various parameters including Agrobacterium tumefaciens strains (LBA4404, EHA101, and EHA105 harboring pCAMBIA1304 plasmid), sonication duration, vacuum infiltration pressure, and vacuum duration using cotyledonary node explants of soybean prepared from 7-day-old seedlings. The transformed plants were successfully developed through direct organogenesis system. Transgene expression was assessed by GUS histochemical and gfp visual assays, and integration was analyzed by PCR and Southern blot hybridization. Among the different combinations and durations evaluated, a maximum transformation efficiency of 18.6 % was achieved when the cotyledonary node explants of cv. PK 416 were sonicated for 20 s and vacuum infiltered for 2 min at 250 mmHg in A. tumefaciens EHA105 suspension. The amenability of the standardized protocol was tested on four more soybean cultivars JS 90-41, Hara Soy, Co 1, and Co 2 in which all the cultivars responded favorably with transformation efficiency ranging from 13.3 to 16.6 %. The transformation protocol developed in the present study would be useful to transform diverse soybean cultivars with desirable traits.
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Affiliation(s)
- Muthukrishnan Arun
- Department of Biotechnology & Genetic Engineering, School of Biotechnology, Bharathidasan University, Tiruchirappalli, 620024,, Tamil Nadu, India
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