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Koirala M, Cristine Goncalves Dos Santos K, Gélinas SE, Ricard S, Karimzadegan V, Lamichhane B, Sameera Liyanage N, Merindol N, Desgagné-Penix I. Auxin and light-mediated regulation of growth, morphogenesis, and alkaloid biosynthesis in Crinum x powellii 'Album' callus. PHYTOCHEMISTRY 2023; 216:113883. [PMID: 37820888 DOI: 10.1016/j.phytochem.2023.113883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/27/2023] [Accepted: 09/29/2023] [Indexed: 10/13/2023]
Abstract
Crinum x powellii 'Album' belongs to the Amaryllidaceae medicinal plant family that produces a range of structurally diverse alkaloids with potential therapeutic properties. The optimal conditions for in vitro tissue growth, morphogenesis, and alkaloid biosynthesis remain unclear. Auxin and light play critical roles in regulating plant growth, development, and alkaloid biosynthesis in several Amaryllidaceae plants. Here, we have succeeded in showing, for the first time, that the combination of auxin and light significantly influence C. x powellii "Album" in vitro tissue growth, survival, and morphogenesis compared to individual treatments. Furthermore, this combination also upregulates the expression of alkaloid biosynthetic genes and led to an increase in the content of certain alkaloids, suggesting a positive impact on the defense and therapeutic potential of the calli. Our findings provide insights into the regulation of genes involved in alkaloid biosynthesis in C. x powellii "Album" callus and underline the potential of auxin and light as tools for enhancing their production in plants. This study provides a foundation for further exploration of C. x powellii "Album" calli as a sustainable source of bioactive alkaloids for pharmaceutical and agricultural applications. Furthermore, this study paves the way to the discovery of the biosynthetic pathway of specialized metabolites from C. x powellii "Album", such as cherylline and lycorine.
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Affiliation(s)
- Manoj Koirala
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada
| | | | - Sarah-Eve Gélinas
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada
| | - Simon Ricard
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada
| | - Vahid Karimzadegan
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada
| | - Basanta Lamichhane
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada
| | - Nuwan Sameera Liyanage
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada
| | - Natacha Merindol
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada
| | - Isabel Desgagné-Penix
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada; Plant Biology Research Group, Trois-Rivières, Québec, Canada.
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Ramos-Escudero F, Casimiro-Gonzales S, Cádiz-Gurrea MDLL, Cancino Chávez K, Basilio-Atencio J, Ordoñez ES, Muñoz AM, Segura-Carretero A. Optimizing vacuum drying process of polyphenols, flavanols and DPPH radical scavenging assay in pod husk and bean shell cocoa. Sci Rep 2023; 13:13900. [PMID: 37626081 PMCID: PMC10457311 DOI: 10.1038/s41598-023-40815-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
The objective of this study was to optimize different vacuum drying conditions for cocoa pod husk and cocoa bean shell in order to enhance these by-products for commercial applications. To carry out the optimization, the response surface methodology was applied using a Box-Behnken experimental design with 15 experiments for which different conditions of temperature (X1), drying time (X2) and vacuum pressure (X3) were established. The response variables were the content of total polyphenols, the content of flavanols and the radical scavenging activity evaluated in the extracts of the different experiments. Temperature (50-70 °C), drying time (3-12 h) and vacuum pressure (50-150 mbar) were considered as independent variables. The main factors affecting the response variables were temperature, followed by vacuum pressure. For the content of polyphenols, the optimal response values predicted for the cocoa pod husk was 11.17 mg GAE/g with a confidence limit (95%) of 9.05 to 13.28 mg GAE/g (optimal conditions: 65 °C, 8 h and 75 mbar), while for the cocoa bean shell cocoa was 29.61 mg GAE/g with a confidence limit (95%) of 26.95 to 32.26 mg GAE/g (optimal conditions: 50 °C, 5 h and 100 mbar). Therefore, results of this study suggest a high content of phenolic compounds obtained from these by-products that show relevance as functional ingredients for application in the food, nutraceutical, and cosmeceutical industries.
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Affiliation(s)
- Fernando Ramos-Escudero
- Unidad de Investigación en Nutrición, Salud, Alimentos Funcionales y Nutraceúticos, Universidad San Ignacio de Loyola (UNUSAN-USIL), Calle Toulon 310, 15024, Lima, Peru.
- Carrera de Nutrición y Dietética, Facultad de Ciencias de la Salud, Universidad San Ignacio de Loyola, Av. La Fontana 550, 15024, Lima, Peru.
| | - Sandra Casimiro-Gonzales
- Instituto de Ciencias de los Alimentos y Nutrición, Universidad San Ignacio de Loyola (ICAN-USIL), Campus Pachacamac, Sección B, Parcela 1, Fundo La Carolina, Pachacámac, 15823, Lima, Peru
| | - María de la Luz Cádiz-Gurrea
- Department of Analytical Chemistry, Faculty of Science, University of Granada, Fuentenueva s/n, 18071, Granada, Spain
| | - Keidy Cancino Chávez
- Unidad de Investigación en Nutrición, Salud, Alimentos Funcionales y Nutraceúticos, Universidad San Ignacio de Loyola (UNUSAN-USIL), Calle Toulon 310, 15024, Lima, Peru
| | - Jaime Basilio-Atencio
- Facultad de Ingeniería en Industrias Alimentarias, Universidad Nacional Agraria de la Selva, Carretera Central km. 1,2, Tingo María, Peru
| | - Elizabeth S Ordoñez
- Facultad de Ingeniería en Industrias Alimentarias, Universidad Nacional Agraria de la Selva, Carretera Central km. 1,2, Tingo María, Peru
| | - Ana María Muñoz
- Unidad de Investigación en Nutrición, Salud, Alimentos Funcionales y Nutraceúticos, Universidad San Ignacio de Loyola (UNUSAN-USIL), Calle Toulon 310, 15024, Lima, Peru
- Instituto de Ciencias de los Alimentos y Nutrición, Universidad San Ignacio de Loyola (ICAN-USIL), Campus Pachacamac, Sección B, Parcela 1, Fundo La Carolina, Pachacámac, 15823, Lima, Peru
| | - Antonio Segura-Carretero
- Department of Analytical Chemistry, Faculty of Science, University of Granada, Fuentenueva s/n, 18071, Granada, Spain
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Lv YP, Zhao G, Xie YF, Owusu AG, Wu Y, Gao JS. Transcriptome and Metabolome Profiling Unveil Pigment Formation Variations in Brown Cotton Lines (Gossypium hirsutum L.). Int J Mol Sci 2023; 24:ijms24065249. [PMID: 36982328 PMCID: PMC10049672 DOI: 10.3390/ijms24065249] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/23/2023] [Accepted: 03/01/2023] [Indexed: 03/12/2023] Open
Abstract
Naturally brown colored cotton (NBCC) is becoming increasingly popular due to its natural properties of coloration. However, poor fiber quality and color fading are key issues that are hindering the cultivation of naturally colored cotton. In this study, based on transcriptome and metabolome of 18 days post-anthesis (DPA), we compared the variations of pigment formation in two brown cotton fibers (DCF and LCF), with white cotton fiber (WCF) belonging to a near-isogenic line. A transcriptome study revealed a total of 15,785 differentially expressed genes significantly enriched in the flavonoid biosynthesis pathway. Furthermore, for flavonoid biosynthesis-related genes, such as flavonoid 3′5′-hydroxylase (F3′5′H), anthocyanidin synthase (ANS), anthocyanidin reductase (ANR), chalcone synthase (CHS), dihydroflavonol 4-reductase (DFR), and chalcone isomerase (CHI), their expressions significantly increased in LCF compared with DCF and WCF. Moreover, transcription factors MYB and bHLH were significantly expressed in LCF and DCF. Most flavonoid-related metabolites (myricetin naringenin, catechin, epicatechin-epiafzelechin, and epigallocatechin) were found to be more highly up-regulated in LCF and DCF than WCF. These findings reveal the regulatory mechanism controlling different brown pigmentation in cotton fibers and elucidate the need for the proper selection of high-quality brown cotton fiber breeding lines for promising fiber quality and durable brown color pigmentation.
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Cheng Y, Chen H, Zhao Y, Cheng X, Wang L, Guo X. Effect of light quality on polyphenol biosynthesis in three varieties of mung bean sprouts with different color seed coats. PLANT CELL REPORTS 2023; 42:253-268. [PMID: 36447023 DOI: 10.1007/s00299-022-02954-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
We investigated the mechanism of the effect of different light qualities on the synthesis and regulation of mung bean sprouts. Light quality acts as a signal molecule, strongly enhancing polyphenol biosynthesis in sprouts. Mung bean (Vigna radiata) sprouts are a popular sprouting vegetable all over the world and are an excellent source of polyphenols with high antioxidant activity. This study investigated the effects of light qualities on the kinetic changes and metabolic regulation mechanism of light signal-mediating polyphenols in three mung bean sprout cultivars. Experimental results showed that three light qualities significantly enhanced the contents of caffeic acid, rutin, vitexin, genistin and delphinidin 3-glucoside. Interestingly, ferulic acid and vitexin responded selectively to blue light and red light, severally. Most genes involved in polyphenol biosynthesis were activated under different light quality conditions, resulting in an overaccumulation of phenylpropanoids. Pearson correlation analysis showed that PAL, F3H, F3'H and F3'5'H expression correlated highly with rutin, whereas ANS expression paralleled anthocyanin biosynthesis. Moreover, MYB111, MYB3, MYB4, MYB1 and MYC2 were critical regulators of polyphenol biosynthesis in mung bean sprouts. These changes were likely due to the changes in the expression of the photoreceptor genes CRY-D, PHOT2, PHYE and light response genes (PIF3 and HY5). Our results provide insights into polyphenol biosynthesis in sprouts and microgreens.
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Affiliation(s)
- Yaoyao Cheng
- School of Food Science and Engineering, Ministry of Education Engineering Research Centre of Starch & Protein Processing, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, 510640, China
| | - Honglin Chen
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yihan Zhao
- School of Food Science and Engineering, Ministry of Education Engineering Research Centre of Starch & Protein Processing, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, 510640, China
| | - Xuzhen Cheng
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Lixia Wang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Xinbo Guo
- School of Food Science and Engineering, Ministry of Education Engineering Research Centre of Starch & Protein Processing, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, 510640, China.
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Koirala M, Karimzadegan V, Liyanage NS, Mérindol N, Desgagné-Penix I. Biotechnological Approaches to Optimize the Production of Amaryllidaceae Alkaloids. Biomolecules 2022; 12:893. [PMID: 35883449 PMCID: PMC9313318 DOI: 10.3390/biom12070893] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/21/2022] [Accepted: 06/23/2022] [Indexed: 02/01/2023] Open
Abstract
Amaryllidaceae alkaloids (AAs) are plant specialized metabolites with therapeutic properties exclusively produced by the Amaryllidaceae plant family. The two most studied representatives of the family are galanthamine, an acetylcholinesterase inhibitor used as a treatment of Alzheimer's disease, and lycorine, displaying potent in vitro and in vivo cytotoxic and antiviral properties. Unfortunately, the variable level of AAs' production in planta restricts most of the pharmaceutical applications. Several biotechnological alternatives, such as in vitro culture or synthetic biology, are being developed to enhance the production and fulfil the increasing demand for these AAs plant-derived drugs. In this review, current biotechnological approaches to produce different types of bioactive AAs are discussed.
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Affiliation(s)
- Manoj Koirala
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC G9A 5H7, Canada; (M.K.); (V.K.); (N.S.L.); (N.M.)
| | - Vahid Karimzadegan
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC G9A 5H7, Canada; (M.K.); (V.K.); (N.S.L.); (N.M.)
| | - Nuwan Sameera Liyanage
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC G9A 5H7, Canada; (M.K.); (V.K.); (N.S.L.); (N.M.)
| | - Natacha Mérindol
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC G9A 5H7, Canada; (M.K.); (V.K.); (N.S.L.); (N.M.)
| | - Isabel Desgagné-Penix
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC G9A 5H7, Canada; (M.K.); (V.K.); (N.S.L.); (N.M.)
- Groupe de Recherche en Biologie Végétale, Université du Québec à Trois-Rivières, Trois-Rivières, QC G9A 5H7, Canada
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Etaware PM. The effects of the phytochemistry of cocoa on the food chemistry of chocolate(s) and how disease resistance in cocoa can be improved using CRISPR/Cas9 technology. FOOD CHEMISTRY. MOLECULAR SCIENCES 2021; 3:100043. [PMID: 35415660 PMCID: PMC8991945 DOI: 10.1016/j.fochms.2021.100043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 09/17/2021] [Accepted: 09/19/2021] [Indexed: 10/28/2022]
Abstract
Consumers' rating of "chocolate brands" are majorly based on texture and taste rather than packaging. The texture/taste of a chocolate bar is largely influenced by the cocoa variety used for its production, whereas, its bioactive constituent is directly affected by the seed processing/chocolate manufacturing technique(s) adopted, and the additives used. Cacao is the key ingredient for chocolate production; therefore, the choicest varieties must be used to protect consumers' interest. Currently, the availability of the African variety is the only reason why it is globally sought-after for chocolate production rather than its taste. Therefore, a transfer of genetic materials from quality cocoa breeds into the high-yielding and resilient African variety or vice versa, would inferably increase the availability of quality cocoa beans all-year-round, and also increase the chances of obtaining sumptuous and palatable chocolates anywhere in the world.
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Key Words
- (-)-Catechin (PubChem CID: 73160)
- AFLP, Amplification Fragment Length Polymorphism
- Anthocyanin (PubChem CID: 11979368)
- BbsI, Biobricks Standard Idempotency (Restriction Endonuclease)
- CRISPR, Clustered Regularly Interspaced Short Palindromic Repeats
- CRISPR/Cas9 technology for gene editing
- CTAB, Cetyl trimethylammonium bromide
- Cacao beans
- Caffeine (PubChem CID: 2519)
- Cas9, CRISPR-associated protein 9
- Chocolate
- Disease resistance
- EcoRI, Restriction Endonuclease Enzyme isolated from E. coli
- Epicatechin (PubChem CID: 1203)
- Food chemistry
- Genetically modified hybrids
- HDL, High-Density Lipoprotein
- HindIII, Site-specific Deoxyribonuclease Enzyme from Haemophilus Influenzae
- IL-1 to IL-10, Interleukin 1 to 10
- LDL, Low-Density Lipoprotein
- ORAC, Oxygen Radical Absorbance Capacity
- Oleic acid (PubChem CID: 445639)
- PAM, Protospacer-Adjacent Motif
- PCR, Polymerase Chain Reaction
- Palmitic acid (PubChem CID: 9881577)
- Phytochemicals
- Proanthocyanidin (PubChem CID: 108065)
- RDA, Recommended Dietary Allowance
- RFLP, Restriction Fragment Length Polymorphism
- ROS, Reactive Oxygen Species
- Stearic acid (PubChem CID: 5281)
- T generation, Transgenic generation
- T-DNA, Transfer Deoxyribonucleic Acid
- TNF-a, Tumor Necrosis Factor “a”
- Theobromine (PubChem CID: 5429)
- Theophylline (PubChem CID: 2153)
- cGMP, Cyclic Guanosine Monophosphate
- crRNA, CRISPR RNA
- dCAPs, Derived Cleaved Amplified Polymorphic Sequences
- eNOS, Endothelium-derived Nitric Oxide Synthase
- psgR-Cas9-At, Phosphorylated Single Guide RNA-Cas9-At
- sgRNA, Single Guide Ribonucleic Acid
- tracrRNA, Trans-Activating CRISPR RNA
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Affiliation(s)
- Peter Mudiaga Etaware
- Department of Botany, Faculty of Science, University of Ibadan, Ibadan, Oyo State, Nigeria
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Wang N, Shu X, Zhang F, Zhuang W, Wang T, Wang Z. Comparative Transcriptome Analysis Identifies Key Regulatory Genes Involved in Anthocyanin Metabolism During Flower Development in Lycoris radiata. FRONTIERS IN PLANT SCIENCE 2021; 12:761862. [PMID: 34975946 PMCID: PMC8715008 DOI: 10.3389/fpls.2021.761862] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 11/17/2021] [Indexed: 06/14/2023]
Abstract
Lycoris is used as a garden flower due to the colorful and its special flowers. Floral coloration of Lycoris is a vital trait that is mainly regulated via the anthocyanin biosynthetic pathway. In this study, we performed a comparative transcriptome analysis of Lycoris radiata petals at four different flower development stages. A total of 38,798 differentially expressed genes (DEGs) were identified by RNA sequencing, and the correlation between the expression level of the DEGs and the anthocyanin content was explored. The identified DEGs are significantly categorized into 'flavonoid biosynthesis,' 'phenylpropanoid biosynthesis,' 'Tropane, piperidine and pyridine alkaloid biosynthesis,' 'terpenoid backbone biosynthesis' and 'plant hormone signal transduction' by Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. The candidate genes involved in anthocyanin accumulation in L. radiata petals during flower development stages were also identified, which included 56 structural genes (especially LrDFR1 and LrFLS) as well as 27 key transcription factor DEGs (such as C3H, GATA, MYB, and NAC). In addition, a key structural gene namely LrDFR1 of anthocyanin biosynthesis pathway was identified as a hub gene in anthocyanin metabolism network. During flower development stages, the expression level of LrDFR1 was positively correlated with the anthocyanin content. Subcellular localization revealed that LrDFR1 is majorly localized in the nucleus, cytoplasm and cell membrane. Overexpression of LrDFR1 increased the anthocyanin accumulation in tobacco leaves and Lycoris petals, suggesting that LrDFR1 acts as a positively regulator of anthocyanin biosynthesis. Our results provide new insights for elucidating the function of anthocyanins in L. radiata petal coloring during flower development.
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Affiliation(s)
- Ning Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Xiaochun Shu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Fengjiao Zhang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Weibing Zhuang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Tao Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Zhong Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
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Gallego AM, Rojas LF, Valencia WG, Atehortúa L, Urrea AI, Fister AS, Guiltinan MJ, Maximova SN, Pabón-Mora N. Transcriptomic analyses of cacao flavonoids produced in photobioreactors. BMC Genomics 2021; 22:551. [PMID: 34281511 PMCID: PMC8287782 DOI: 10.1186/s12864-021-07871-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 07/05/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Theobroma cacao is a major source of flavonoids such as catechins and their monomers proanthocyanidins (PAs), widely studied for their potential benefits in cardiovascular diseases. Light has been shown to promote plant secondary metabolite production in vitro. In this study, cacao cells cultured in 7.5 L stirred tank photobioreactors (STPs) were exposed to a change of white to blue LED lights for 28 days (d). RESULTS Transcriptomic analyses were performed in three time points comparing changing expression patterns, after cell exposure to white light (d0-VS-d14), after a shift from white to blue light (d14-VS-d15), and after an extended period of blue light for the following 15 days (d15-VS-d28). Under white light, there was enrichment in metabolic pathways associated with cell growth (carbon, glycolysis, and amino acid biosynthesis) accompanied by a significant increase in the PAs content. In the shift to blue light, further increase in PAs content was observed concomitantly with the significant expression of TWO-COMPONENT RESPONSE REGULATOR genes involved in the early stress responses via circadian clock and hormone pathways. Under blue light exposure, we observed a depletion of PAs content associated with ROS-mediated stress pathways. CONCLUSIONS Light effects on large-scale cell cultures in photobioreactors are complex and pleiotropic; however, we have been able to identify key regulatory players upstream cacao flavonoid biosynthesis in STPs, including TWO-COMPONENT SYSTEM and ROS-signaling genes. The crosstalk between flavonoid biosynthesis and regulatory networks led to understand the dynamics of flavonoid production and degradation in response to light-driven ROS signals. This can be used to optimize the time, and the yield of in vitro targeted metabolites in large-scale culture systems.
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Affiliation(s)
- Adriana M Gallego
- Grupo de Biotecnología, Instituto de Biología, Universidad de Antioquia, Medellín, Colombia
| | - Luisa F Rojas
- Grupo de Biotransformación, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | - Wilmar G Valencia
- Centro de Investigación, Desarrollo y Calidad CIDCA, Compañía Nacional de Chocolates S.A.S, Km 2 Vía Belén autopista, Medellín-Bogotá, Colombia
| | - Lucía Atehortúa
- Grupo de Biotecnología, Instituto de Biología, Universidad de Antioquia, Medellín, Colombia
| | - Aura I Urrea
- Grupo de Biotecnología, Instituto de Biología, Universidad de Antioquia, Medellín, Colombia
| | - Andrew S Fister
- Department of Plant Science, Pennsylvania State University, University Park, PA, USA
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
- Present address: Pairwise Plants, 110 TW Alexander Dr, Durham, NC, USA
| | - Mark J Guiltinan
- Department of Plant Science, Pennsylvania State University, University Park, PA, USA
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
| | - Siela N Maximova
- Department of Plant Science, Pennsylvania State University, University Park, PA, USA.
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA.
| | - Natalia Pabón-Mora
- Grupo Evo-Devo en Plantas, Instituto de Biología, Universidad de Antioquia, Medellín, Colombia.
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Ramos-Escudero F, Casimiro-Gonzales S, Fernández-Prior Á, Cancino Chávez K, Gómez-Mendoza J, Fuente-Carmelino LDL, Muñoz AM. Colour, fatty acids, bioactive compounds, and total antioxidant capacity in commercial cocoa beans (Theobroma cacao L.). Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111629] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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10
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Metabolome and Transcriptome Analysis Reveals Putative Genes Involved in Anthocyanin Accumulation and Coloration in White and Pink Tea ( Camellia sinensis) Flower. Molecules 2020; 25:molecules25010190. [PMID: 31906542 PMCID: PMC6983220 DOI: 10.3390/molecules25010190] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/25/2019] [Accepted: 12/31/2019] [Indexed: 12/12/2022] Open
Abstract
A variant of tea tree (Camellia sinensis (L.)) with purple buds and leaves and pink flowers can be used as a unique ornamental plant. However, the mechanism of flower coloration remains unclear. To elucidate the molecular mechanism of coloration, as well as anthocyanin accumulation in white and pink tea flowers, metabolite profiling and transcriptome sequencing was analyzed in various tea flower developmental stages. Results of metabolomics analysis revealed that three specific anthocyanin substances could be identified, i.e., cyanidin O-syringic acid, petunidin 3-O-glucoside, and pelargonidin 3-O-β-d-glucoside, which only accumulated in pink tea flowers, and were not able to be detected in white flowers. RNA-seq and weighted gene co-expression network analysis revealed eight highly expressed structural genes involved in anthocyanin biosynthetic pathway, and particularly, different expression patterns of flavonol synthase and dihydroflavonol-4-reductase genes were observed. We deduced that the disequilibrium of expression levels in flavonol synthases and dihydroflavonol-4-reductases resulted in different levels of anthocyanin accumulation and coloration in white and pink tea flowers. Results of qRT-PCR performed for 9 key genes suggested that the expression profiles of differentially expressed genes were generally consistent with the results of high-throughput sequencing. These findings provide insight into anthocyanin accumulation and coloration mechanisms during tea flower development, which will contribute to the breeding of pink-flowered and anthocyanin-rich tea cultivars.
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