1
|
DeBenedictis JN, Baars E, Ochoteco-Asensio J, van Breda SG, de Kok TM. Genetic Variability Impacts Genotoxic and Transcriptome Responses in the Human Colon after the Consumption of Processed Red Meat Products and Those with Added Phytochemical Extracts. Nutrients 2024; 16:425. [PMID: 38337709 PMCID: PMC10857093 DOI: 10.3390/nu16030425] [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: 12/30/2023] [Revised: 01/22/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
The PHYTOME study investigated the effect of consuming processed meat products on outcomes related to colorectal cancer risk without testing the impact of genetic variability on these responses. This research aims to elucidate the genetic impact on apparent total N-nitroso compound (ATNC) excretion, colonic DNA adduct formation, ex vivo-induced DNA damage, and gene expression changes in colon biopsies of healthy participants. Through a systematic literature review, candidate polymorphisms were selected and then detected using TaqMan and PCR analysis. The effect of genotype on study outcomes was determined via a linear mixed model and analysis of variance. Machine learning was used to evaluate relative allele importance concerning genotoxic responses, which established a ranking of the most protective alleles and a combination of genotypes (gene scores). Participants were grouped by GSTM1 genotype and differentially expressed genes (DEGs), and overrepresented biological pathways were compared between groups. Stratifying participants by ten relevant genes revealed significant variations in outcome responses. After consumption of processed red meat, variations in NQO1 and COMT impacted responses in ATNC levels (µmol/L) (+9.56 for wildtype vs. heterozygous) and DNA adduct levels (pg/µg DNA) (+1.26 for variant vs. wildtype and +0.43 for variant vs. heterozygous), respectively. After phytochemicals were added to the meat, GSTM1 variation impacted changes in DNA adduct levels (-6.12 for deletion vs. wildtype). The gene scores correlated with these responses and DEGs were identified by GSTM1 genotype. The altered pathways specific to the GSTM1 wildtype group included 'metabolism', 'cell cycle', 'vitamin D receptor', and 'metabolism of water-soluble vitamins and co-factors'. Genotype impacted both the potential genotoxicity of processed red meat and the efficacy of protective phytochemical extracts.
Collapse
Affiliation(s)
| | | | | | - Simone G. van Breda
- Toxicogenomics Department, GROW School of Oncology & Reproduction, Faculty of Health, Medicine & Life Sciences, Maastricht University, 6211 LK Maastricht, The Netherlands (J.O.-A.)
| | | |
Collapse
|
2
|
Barreto JVDO, Casanova LM, Junior AN, Reis-Mansur MCPP, Vermelho AB. Microbial Pigments: Major Groups and Industrial Applications. Microorganisms 2023; 11:2920. [PMID: 38138065 PMCID: PMC10745774 DOI: 10.3390/microorganisms11122920] [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: 10/02/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023] Open
Abstract
Microbial pigments have many structures and functions with excellent characteristics, such as being biodegradable, non-toxic, and ecologically friendly, constituting an important source of pigments. Industrial production presents a bottleneck in production cost that restricts large-scale commercialization. However, microbial pigments are progressively gaining popularity because of their health advantages. The development of metabolic engineering and cost reduction of the bioprocess using industry by-products opened possibilities for cost and quality improvements in all production phases. We are thus addressing several points related to microbial pigments, including the major classes and structures found, the advantages of use, the biotechnological applications in different industrial sectors, their characteristics, and their impacts on the environment and society.
Collapse
Affiliation(s)
| | | | | | | | - Alane Beatriz Vermelho
- Bioinovar Laboratory, Institute of Microbiology Paulo de Goes, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (J.V.d.O.B.); (L.M.C.); (A.N.J.); (M.C.P.P.R.-M.)
| |
Collapse
|
3
|
Zhu Y, Yuzuak S, Sun X, Xie DY. Identification and biosynthesis of plant papanridins, a group of novel oligomeric flavonoids. MOLECULAR PLANT 2023; 16:1773-1793. [PMID: 37749887 DOI: 10.1016/j.molp.2023.09.015] [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: 03/18/2023] [Revised: 08/22/2023] [Accepted: 09/20/2023] [Indexed: 09/27/2023]
Abstract
The discovery of novel flavonoids and elucidation of their biosynthesis are fundamental to understanding their roles in plants and their benefits for human and animal health. Here, we report a new pathway for polymerization of a group of novel oligomeric flavonoids in plants. We engineered red cells for discovering genes of interest involved in the flavonoid pathway and identified a gene encoding a novel flavanol polymerase (FP) localized in the central vacuole. FP catalyzes the polymerization of flavanols, such as epicatechin and catechin, to produce yellowish dimers or oligomers. Structural elucidation shows that these compounds feature a novel oligomeric flaven-flavan (FF) skeleton linked by interflavan-flaven and interflaven bonds, distinguishing them from proanthocyanidins and dehydrodicatechins. Detailed chemical and physical characterizations further confirmed the novel FFs as flavonoids. Mechanistic investigations demonstrated that FP polymerizes flavan-3-ols and flav-2-en-3-ol carbocation, forming dimeric or oligomeric flaven-4→8-flavans, which we term "papanridins." Data from transgenic experiments, mutant analysis, metabolic profiling, and phylogenetic analyses show that the biosynthesis of papanridins is prevalent in cacao, grape, blueberry, corn, rice, Arabidopsis, and other species in the plant kingdom. In summary, our study discoveries a group of novel oligomeric flavonoids, namely papanridins, and reveals that a novel FP-mediated polymerization mechanism for the biosynthesis of papanridins in plants.
Collapse
Affiliation(s)
- Yue Zhu
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
| | - Seyit Yuzuak
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA; Department of Molecular Biology & Genetics, Mehmet Akif Ersoy University, Burdur, Turkey
| | - Xiaoyan Sun
- Department of Chemistry, North Carolina State University, Raleigh, NC, USA
| | - De-Yu Xie
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA.
| |
Collapse
|
4
|
Dong Y, Li M, Cruz B, Ye E, Zhu Y, Li L, Xu Z, Xie DY. Molecular understanding of anthocyanin biosynthesis activated by PAP1 and regulated by 2, 4-dichlorophenoxyacetic acid in engineered red Artemisia annua cells. PLANTA 2023; 258:75. [PMID: 37668683 DOI: 10.1007/s00425-023-04230-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 08/26/2023] [Indexed: 09/06/2023]
Abstract
MAIN CONCLUSION Eight promoters were cloned, from which AC and G-box cis-elements were identified. PAP1 enhanced the promoter activity. 2,4-D reduced the anthocyanin biosynthesis via downregulating the expression of the PAP1 transgene. Artemisia annua is an effective antimalarial medicinal crop. We have established anthocyanin-producing red cell cultures from this plant with the overexpression of Production of Anthocyanin Pigment 1 (PAP1) encoding a R2R3MYB transcription factor. To understand the molecular mechanism by which PAP1 activated the entire anthocyanin pathway, we mined the genomic sequences of A. annua and obtained eight promoters of the anthocyanin pathway genes. Sequence analysis identified four types of AC cis-elements from six promoters, the MYB response elements (MRE) bound by PAP1. In addition, six promoters were determined to have at least one G-box cis-element. Eight promoters were cloned for activity analysis. Dual luciferase assays showed that PAP1 significantly enhanced the promoting activity of seven promoters, indicating that PAP1 turned on the biosynthesis of anthocyanins via the activation of these pathway gene expression. To understand how 2,4-dichlorophenoxyacetic acid (2,4-D), an auxin, regulates the PAP1-activated anthocyanin biosynthesis, five different concentrations (0, 0.05, 0.5, 2.5, and 5 µM) were tested to characterize anthocyanin production and profiles. The resulting data showed that the concentrations tested decreased the fresh weight of callus growth, anthocyanin levels, and the production of anthocyanins per Petri dish. HPLC-qTOF-MS/MS-based profiling showed that these concentrations did not alter anthocyanin profiles. Real-time RT-PCR was completed to characterize the expression PAP1 and four representative pathway genes. The results showed that the five concentrations reduced the expression levels of the constitutive PAP1 transgene and three pathway genes significantly and eliminated the expression of the chalcone synthase gene either significantly or slightly. These data indicate that the constitutive PAP1 expression depends on gradients added in the medium. Based on these findings, the regulation of 2,4-D is discussed for anthocyanin engineering in red cells of A. annua.
Collapse
Affiliation(s)
- Yilun Dong
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Mingzhuo Li
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
| | - Bryanna Cruz
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
| | - Emily Ye
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
| | - Yue Zhu
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
| | - Lihua Li
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Zhengjun Xu
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - De-Yu Xie
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA.
| |
Collapse
|
5
|
Yang X, Li A, Xia J, Huang Y, Lu X, Guo G, Sui S. Enhancement of the anthocyanin contents of Caladium leaves and petioles via metabolic engineering with co-overexpression of AtPAP1 and ZmLc transcription factors. FRONTIERS IN PLANT SCIENCE 2023; 14:1186816. [PMID: 37416877 PMCID: PMC10320811 DOI: 10.3389/fpls.2023.1186816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 06/05/2023] [Indexed: 07/08/2023]
Abstract
Introduction Metabolic engineering of anthocyanin synthesis is an active research area for pigment breeding and remains a research hotspot involving AtPAP1 and ZmLc transcription factors. Caladium bicolor is a desirable anthocyanin metabolic engineering receptor, with its abundant leaf color and stable genetic transformation system. Methods We transformed C. bicolor with AtPAP1 and ZmLc and successfully obtained transgenic plants. We then used a combination of metabolome, transcriptome, WGCNA and PPI co-expression analyses to identify differentially expressed anthocyanin components and transcripts between wild-type and transgenic lines. Results Cyanidin-3-O-glucoside, cyanidin-3-O-rutinoside and peonidin-3-O-rutinoside are the main components of anthocyanins in the leaves and petioles of C. bicolor. Exogenous introduction of AtPAP1 and ZmLc resulted in significant changes in pelargonidins, particularly pelargonidin-3-O-glucoside and pelargonidin-3-O-rutinoside in C. bicolor. Furthermore, 5 MYB-TFs, 9 structural genes, and 5 transporters were found to be closely associated with anthocyanin synthesis and transport in C. bicolor. Discussion In this study, a network regulatory model of AtPAP1 and ZmLc in the regulation of anthocyanin biosynthesis and transport in C. bicolor was proposed, which provides insights into the color formation mechanisms of C. bicolor, and lays a foundation for the precise regulation of anthocyanin metabolism and biosynthesis for economic plant pigment breeding.
Collapse
|
6
|
Leal M, Moreno MA, Albornoz PL, Mercado MI, Zampini IC, Isla MI. Morphological Characterization of Nicotiana tabacum Inflorescences and Chemical-Functional Analysis of Extracts Obtained from Its Powder by Using Green Solvents (NaDESs). PLANTS (BASEL, SWITZERLAND) 2023; 12:1554. [PMID: 37050180 PMCID: PMC10096878 DOI: 10.3390/plants12071554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/22/2023] [Accepted: 03/30/2023] [Indexed: 06/19/2023]
Abstract
The production of smokeable tobacco for use in cigarettes is characterized by the production of pre-harvest and post-harvest waste, with ensuing undesirable effects on the environment. The inflorescences of tobacco after blunting, deflowering, or topping are considered pre-harvest waste and left in the field. Using green and ecofriendly solvents such as Natural deep eutectic solvents (NaDESs), these wastes could be used to obtain antioxidant molecules of interest in cosmetics. Taking into account its potential as plant matrix to obtain metabolites of commercial interest, tobacco inflorescences and inflorescence powders of different particle sizes were characterized by optic and electronic microscopy. Thus, the powdered inflorescences were extracted with four conventional solvents, i.e., distilled water (DW), acetone: distilled water (AW), ethanol 70° (EW), methanol (Me), and five NaDESs, i.e., lactic acid: sucrose (LAS), lactic acid: sucrose: distilled water (SALA), fructose: glucose: sucrose: distilled water (FGS), choline chloride: urea: distilled water (CU), and citric acid: propylene glycol (CAP). Among the tested NADESs, SALA was the most promising solvent; higher extraction yields of total phenolic compound (3420.0 ± 9.4 µg GAE/mL) than conventional solvents were attained and it was the only selective solvent to phenolics. CU was the best solvent for flavonoids and alkaloids extraction (215.3 ± 3.2 µg QE/mL and 392.3 ± 8.0 µg ACE/mL, respectively). All extracts showed antioxidant activity. A heatmap with dendrogram and main component analysis showed that acid-based NaDESs are grouped together, this group being the one with the best performance in H2O2 scavenging. The extracts obtained with green solvents could be used directly in cosmetic formulations as antioxidant ingredients because both tobacco flower oil and flower extracts are listed in the cosmetic ingredients database as non-toxic products. Additionally, the demand for sustainable ecological cosmetics is growing. In this sense, NaDESs represent an opportunity to develop innovative extracts with unique phytochemical fingerprints and biological activities.
Collapse
Affiliation(s)
- Mariana Leal
- Instituto de Bioprospección y Fisiología Vegetal (INBIOFIV), CONICET-Universidad Nacional de Tucumán (UNT), San Miguel de Tucumán T4000, Argentina
- Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán (UNT), San Miguel de Tucumán T4000, Argentina
- Biolates Network for Sustainable Use of Ibero-American Vegetable Biomass Resources in Cosmetics (Biolates CYTED), San Miguel de Tucumán T4000, Argentina
| | - María Alejandra Moreno
- Instituto de Bioprospección y Fisiología Vegetal (INBIOFIV), CONICET-Universidad Nacional de Tucumán (UNT), San Miguel de Tucumán T4000, Argentina
- Biolates Network for Sustainable Use of Ibero-American Vegetable Biomass Resources in Cosmetics (Biolates CYTED), San Miguel de Tucumán T4000, Argentina
| | - Patricia Liliana Albornoz
- Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán (UNT), San Miguel de Tucumán T4000, Argentina
- Instituto de Morfología Vegetal, Fundación M. Lillo, Miguel Lillo 251, San Miguel de Tucumán T4000, Argentina
| | - María Inés Mercado
- Instituto de Morfología Vegetal, Fundación M. Lillo, Miguel Lillo 251, San Miguel de Tucumán T4000, Argentina
| | - Iris Catiana Zampini
- Instituto de Bioprospección y Fisiología Vegetal (INBIOFIV), CONICET-Universidad Nacional de Tucumán (UNT), San Miguel de Tucumán T4000, Argentina
- Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán (UNT), San Miguel de Tucumán T4000, Argentina
- Biolates Network for Sustainable Use of Ibero-American Vegetable Biomass Resources in Cosmetics (Biolates CYTED), San Miguel de Tucumán T4000, Argentina
| | - María Inés Isla
- Instituto de Bioprospección y Fisiología Vegetal (INBIOFIV), CONICET-Universidad Nacional de Tucumán (UNT), San Miguel de Tucumán T4000, Argentina
- Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán (UNT), San Miguel de Tucumán T4000, Argentina
- Biolates Network for Sustainable Use of Ibero-American Vegetable Biomass Resources in Cosmetics (Biolates CYTED), San Miguel de Tucumán T4000, Argentina
| |
Collapse
|
7
|
Chen D, Jin Q, Pan J, Liu Y, Tang Y, E Y, Xu L, Yang T, Qiu J, Chen X, Wang J, Gong D, Ge X, Li Z, Cui C. Fine mapping of genes controlling pigment accumulation in oilseed rape ( Brassica napus L.). MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2023; 43:19. [PMID: 37313299 PMCID: PMC10248657 DOI: 10.1007/s11032-023-01365-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 02/22/2023] [Indexed: 06/15/2023]
Abstract
Purple/red appearance is one of the common phenotypic variations in leaves, stems, and siliques of oilseed rape (Brassica napus L.) but very rare in flowers. In this study, the causal genes for the purple/red traits in stems and flowers in two accessions of oilseed rape (DH_PR and DH_GC001, respectively) derived from the wide hybridization were fine mapped, and candidate genes were determined by methods combined with bulked segregant analysis (BSA) and RNA-seq analysis. Both traits of purple stem and red flowers were mapped to the locus as AtPAP2 homologous genes (BnaPAP2.C6a and BnaPAP2.A7b, respectively) belonging to the R2R3-MYB family. Sequence comparisons of full-length allelic genes revealed several InDels and SNPs in intron 1 as well as exons, and completely different promoter region of BnaPAP2.C6a and a 211 bp insertion was identified in the promoter region of BnaPAP2.A7b of DH_GC001. Our results not only contribute to a better understanding of anthocyanin inheritance in B. napus, but also provide a useful toolbox for future breeding of cultivars with purple/red traits through the combination of different functional alleles and homologs. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-023-01365-5.
Collapse
Affiliation(s)
- Daozong Chen
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000 China
| | - Qingdong Jin
- National Key Laboratory of Crop Genetic Improvement, National Center of Oil Crop Improvement (Wuhan), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 People's Republic of China
| | - Jianming Pan
- National Key Laboratory of Crop Genetic Improvement, National Center of Oil Crop Improvement (Wuhan), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 People's Republic of China
| | - Yi Liu
- College of Life Sciences, Ganzhou Key Laboratory of Greenhouse Vegetable, Gannan Normal University, Ganzhou, 341000 China
| | - Yijia Tang
- National Key Laboratory of Crop Genetic Improvement, National Center of Oil Crop Improvement (Wuhan), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 People's Republic of China
| | - Yanrong E
- National Key Laboratory of Crop Genetic Improvement, National Center of Oil Crop Improvement (Wuhan), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 People's Republic of China
| | - Linshan Xu
- National Key Laboratory of Crop Genetic Improvement, National Center of Oil Crop Improvement (Wuhan), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 People's Republic of China
| | - Taihua Yang
- National Key Laboratory of Crop Genetic Improvement, National Center of Oil Crop Improvement (Wuhan), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 People's Republic of China
| | - Jie Qiu
- National Key Laboratory of Crop Genetic Improvement, National Center of Oil Crop Improvement (Wuhan), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 People's Republic of China
| | - Xiaodi Chen
- National Key Laboratory of Crop Genetic Improvement, National Center of Oil Crop Improvement (Wuhan), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 People's Republic of China
| | - Jing Wang
- National Key Laboratory of Crop Genetic Improvement, National Center of Oil Crop Improvement (Wuhan), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 People's Republic of China
| | - Deping Gong
- Jingzhou Academy of Agricultural Science, Jingzhou, 434007 China
| | - Xianhong Ge
- National Key Laboratory of Crop Genetic Improvement, National Center of Oil Crop Improvement (Wuhan), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 People's Republic of China
| | - Zaiyun Li
- National Key Laboratory of Crop Genetic Improvement, National Center of Oil Crop Improvement (Wuhan), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 People's Republic of China
| | - Cheng Cui
- Environment-Friendly Crop Germplasm Innovation and Genetic Improvement Key Laboratory of Sichuan Province, Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066 China
| |
Collapse
|
8
|
Judd R, Dong Y, Sun X, Zhu Y, Li M, Xie DY. Metabolic engineering of the anthocyanin biosynthetic pathway in Artemisia annua and relation to the expression of the artemisinin biosynthetic pathway. PLANTA 2023; 257:63. [PMID: 36807538 DOI: 10.1007/s00425-023-04091-6] [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: 01/06/2023] [Accepted: 02/04/2023] [Indexed: 06/18/2023]
Abstract
Four types of cells were engineered from Artemisia annua to produce approximately 17 anthocyanins, four of which were elucidated structurally. All of them expressed the artemisinin pathway. Artemisia annua is the only medicinal crop to produce artemisinin for the treatment of malignant malaria. Unfortunately, hundreds of thousands of people still lose their life every year due to the lack of sufficient artemisinin. Artemisinin is considered to result from the spontaneous autoxidation of dihydroartemisinic acid in the presence of reactive oxygen species (ROS) in an oxidative condition of glandular trichomes (GTs); however, whether increasing antioxidative compounds can inhibit artemisinin biosynthesis in plant cells is unknown. Anthocyanins are potent antioxidants that can remove ROS in plant cells. To date, no anthocyanins have been structurally elucidated from A. annua. In this study, we had two goals: (1) to engineer anthocyanins in A. annua cells and (2) to understand the artemisinin biosynthesis in anthocyanin-producing cells. Arabidopsis Production of Anthocyanin Pigment 1 was used to engineer four types of transgenic anthocyanin-producing A. annua (TAPA1-4) cells. Three wild-type cell types were developed as controls. TAPA1 cells produced the highest contents of total anthocyanins. LC-MS analysis detected 17 anthocyanin or anthocyanidin compounds. Crystallization, LC/MS/MS, and NMR analyses identified cyanidin, pelargonidin, one cyanin, and one pelargonin. An integrative analysis characterized that four types of TAPA cells expressed the artemisinin pathway and TAPA1 cells produced the highest artemisinin and artemisinic acid. The contents of arteannuin B were similar in seven cell types. These data showed that the engineering of anthocyanins does not eliminate the biosynthesis of artemisinin in cells. These data allow us to propose a new hypothesis that enzymes catalyze the formation of artemisinin from dihydroartemisinic acid in non-GT cells. These findings show a new platform to increase artemisinin production via non-GT cells of A. annua.
Collapse
Affiliation(s)
- Rika Judd
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
| | - Yilun Dong
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
- Rice Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Xiaoyan Sun
- Department of Chemistry, North Carolina State University, Raleigh, NC, USA
| | - Yue Zhu
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
| | - Mingzhuo Li
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
| | - De-Yu Xie
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA.
| |
Collapse
|
9
|
Tariq H, Asif S, Andleeb A, Hano C, Abbasi BH. Flavonoid Production: Current Trends in Plant Metabolic Engineering and De Novo Microbial Production. Metabolites 2023; 13:metabo13010124. [PMID: 36677049 PMCID: PMC9864322 DOI: 10.3390/metabo13010124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/23/2022] [Accepted: 01/10/2023] [Indexed: 01/14/2023] Open
Abstract
Flavonoids are secondary metabolites that represent a heterogeneous family of plant polyphenolic compounds. Recent research has determined that the health benefits of fruits and vegetables, as well as the therapeutic potential of medicinal plants, are based on the presence of various bioactive natural products, including a high proportion of flavonoids. With current trends in plant metabolite research, flavonoids have become the center of attention due to their significant bioactivity associated with anti-cancer, antioxidant, anti-inflammatory, and anti-microbial activities. However, the use of traditional approaches, widely associated with the production of flavonoids, including plant extraction and chemical synthesis, has not been able to establish a scalable route for large-scale production on an industrial level. The renovation of biosynthetic pathways in plants and industrially significant microbes using advanced genetic engineering tools offers substantial promise for the exploration and scalable production of flavonoids. Recently, the co-culture engineering approach has emerged to prevail over the constraints and limitations of the conventional monoculture approach by harnessing the power of two or more strains of engineered microbes to reconstruct the target biosynthetic pathway. In this review, current perspectives on the biosynthesis and metabolic engineering of flavonoids in plants have been summarized. Special emphasis is placed on the most recent developments in the microbial production of major classes of flavonoids. Finally, we describe the recent achievements in genetic engineering for the combinatorial biosynthesis of flavonoids by reconstructing synthesis pathways in microorganisms via a co-culture strategy to obtain high amounts of specific bioactive compounds.
Collapse
Affiliation(s)
- Hasnat Tariq
- Department of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Saaim Asif
- Department of Biosciences, COMSATS University, Islamabad 45550, Pakistan
| | - Anisa Andleeb
- Department of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Christophe Hano
- Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), INRAE USC1328, Eure et Loir Campus, Université d’Orléans, 28000 Chartres, France
- Correspondence: (C.H.); (B.H.A.)
| | - Bilal Haider Abbasi
- Department of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan
- Correspondence: (C.H.); (B.H.A.)
| |
Collapse
|
10
|
Li M, He X, La Hovary C, Zhu Y, Dong Y, Liu S, Xing H, Liu Y, Jie Y, Ma D, Yuzuak S, Xie DY. A de novo regulation design shows an effectiveness in altering plant secondary metabolism. J Adv Res 2022; 37:43-60. [PMID: 35499047 PMCID: PMC9039656 DOI: 10.1016/j.jare.2021.06.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 05/26/2021] [Accepted: 06/17/2021] [Indexed: 11/25/2022] Open
Abstract
Arabidopsis PAP1 and TT8 transcription factors and cis-regulatory elements of tobacco JAZs are for the first time selected as molecular tools for a De Novo regulation design. This design creates a distant pathway-cross regulation (DPCR) that effectively downregulates the alkaloid biosynthesis in tobacco. The DPCR significantly reduces carcinogenic compounds. This design unearths two novel regulatory functions of PAP1 and TT8 and their complex and a new regulation mechanism of four NtJAZs.
Introduction Transcription factors (TFs) and cis-regulatory elements (CREs) control gene transcripts involved in various biological processes. We hypothesize that TFs and CREs can be effective molecular tools for De Novo regulation designs to engineer plants. Objectives We selected two Arabidopsis TF types and two tobacco CRE types to design a De Novo regulation and evaluated its effectiveness in plant engineering. Methods G-box and MYB recognition elements (MREs) were identified in four Nicotiana tabacum JAZs (NtJAZs) promoters. MRE-like and G-box like elements were identified in one nicotine pathway gene promoter. TF screening led to select Arabidopsis Production of Anthocyanin Pigment 1 (PAP1/MYB) and Transparent Testa 8 (TT8/bHLH). Two NtJAZ and two nicotine pathway gene promoters were cloned from commercial Narrow Leaf Madole (NL) and KY171 (KY) tobacco cultivars. Electrophoretic mobility shift assay (EMSA), cross-linked chromatin immunoprecipitation (ChIP), and dual-luciferase assays were performed to test the promoter binding and activation by PAP1 (P), TT8 (T), PAP1/TT8 together, and the PAP1/TT8/Transparent Testa Glabra 1 (TTG1) complex. A DNA cassette was designed and then synthesized for stacking and expressing PAP1 and TT8 together. Three years of field trials were performed by following industrial and GMO protocols. Gene expression and metabolic profiling were completed to characterize plant secondary metabolism. Results PAP1, TT8, PAP1/TT8, and the PAP1/TT8/TTG1 complex bound to and activated NtJAZ promoters but did not bind to nicotine pathway gene promoters. The engineered red P + T plants significantly upregulated four NtJAZs but downregulated the tobacco alkaloid biosynthesis. Field trials showed significant reduction of five tobacco alkaloids and four carcinogenic tobacco specific nitrosamines in most or all cured leaves of engineered P + T and PAP1 genotypes. Conclusion G-boxes, MREs, and two TF types are appropriate molecular tools for a De Novo regulation design to create a novel distant-pathway cross regulation for altering plant secondary metabolism.
Collapse
|
11
|
Yu T, Han G, Luan Z, Zhu C, Zhao J, Sheng Y. Functional Analysis of Genes GlaDFR1 and GlaDFR2 Encoding Dihydroflavonol 4-Reductase (DFR) in Gentiana lutea L. Var. Aurantiaca (M. Laínz) M. Laínz. BIOMED RESEARCH INTERNATIONAL 2022; 2022:1382604. [PMID: 35047628 PMCID: PMC8763498 DOI: 10.1155/2022/1382604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 12/17/2021] [Indexed: 11/29/2022]
Abstract
Anthocyanins are important pigments for flower color, determining the ornamental and economic values of horticultural plants. As a key enzyme in the biosynthesis of anthocyanidins, dihydroflavonol 4-reductase (DFR) catalyzes the reduction of dihydroflavonols to generate the precursors for anthocyanidins (i.e., leucoanthocyanidins) and anthocyanins. To investigate the functions of DFRs in plants, we cloned the GlaDFR1 and GlaDFR2 genes from the petals of Gentiana lutea var. aurantiaca and transformed both genes into Nicotiana tabacum by Agrobacterium-mediated leaf disc method. We further investigated the molecular and phenotypic characteristics of T1 generation transgenic tobacco plants selected based on the hygromycin resistance and verified by both PCR and semiquantitative real-time PCR analyses. The phenotypic segregation was observed in the flower color of the transgenic tobacco plants, showing petals darker than those in the wild-type (WT) plants. Results of high-performance liquid chromatography (HPLC) analysis showed that the contents of gentiocyanin derivatives were decreased in the petals of transgenic plants in comparison to those of WT plants. Ours results revealed the molecular functions of GlaDFR1 and GlaDFR2 in the formation of coloration, providing solid theoretical foundation and candidate genes for further genetic improvement in flower color of plants.
Collapse
Affiliation(s)
- Tingting Yu
- School of Life Sciences, Changchun Normal University, Changchun 130031, China
| | - Guojun Han
- School of Life Sciences, Changchun Normal University, Changchun 130031, China
| | - Zhihui Luan
- School of Life Sciences, Changchun Normal University, Changchun 130031, China
| | - Changfu Zhu
- School of Life Sciences, Changchun Normal University, Changchun 130031, China
| | - Jinghua Zhao
- School of Life Sciences, Changchun Normal University, Changchun 130031, China
| | - Yanmin Sheng
- School of Life Sciences, Changchun Normal University, Changchun 130031, China
| |
Collapse
|
12
|
Chen W, Miao Y, Ayyaz A, Hannan F, Huang Q, Ulhassan Z, Zhou Y, Islam F, Hong Z, Farooq MA, Zhou W. Purple stem Brassica napus exhibits higher photosynthetic efficiency, antioxidant potential and anthocyanin biosynthesis related genes expression against drought stress. FRONTIERS IN PLANT SCIENCE 2022; 13:936696. [PMID: 35968110 PMCID: PMC9366039 DOI: 10.3389/fpls.2022.936696] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 07/04/2022] [Indexed: 05/09/2023]
Abstract
Purple-stem Brassica napus (B. napus) is a phenotype with unique color because of its high anthocyanins content. Anthocyanins are naturally occurring plant pigments that have antioxidants activity and play important role in plant defense against abiotic and biotic stresses. In the present study, drought induced effects on plants were investigated in hydroponically grown seedlings of green stem (GS) and purple stem (PS) genotypes of B. napus. The results of this study showed that the major function of anthocyanins accumulation during drought was to enhance the antioxidant capability and stress tolerance in B. napus plants. Our results showed that drought significantly inhibited the plant growth in terms of decreased biomass accumulation in both genotypes, although marked decline was observed in GS genotype. The reduction in photosynthetic attributes was more noticeable in the GS genotype, whereas the PS genotype showed better performance under drought stress. Under stressful conditions, both the genotype showed excessive accumulation of reactive oxygen species (ROS) and malondialdehyde (MDA), as well as higher levels of antioxidant enzymes activities. Under drought conditions, the GS genotype showed apparent damages on chloroplast deformation like in thylakoid membrane and grana structural distortion and fewer starch grains and bigger plastoglobuli. Moreover, during drought stress, the PS genotype exhibited maximum expression levels of anthocyanins biosynthesis genes and antioxidant enzymes accompanied by higher stress tolerance relative to GS genotype. Based on these findings, it can be concluded that GS genotype found more sensitive to drought stress than the PS genotype. Furthermore this research paper also provides practical guidance for plant biologists who are developing stress-tolerant crops by using anthocyanin biosynthesis or regulatory genes.
Collapse
Affiliation(s)
- Weiqi Chen
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, China
| | - Yilin Miao
- Agricultural Technology and Water Conservancy Service Center, Jiaxing, China
| | - Ahsan Ayyaz
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, China
| | - Fakhir Hannan
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, China
| | - Qian Huang
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, China
| | - Zaid Ulhassan
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, China
| | - Yingying Zhou
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, China
| | - Faisal Islam
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, China
| | - Zheyuan Hong
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, China
| | - Muhammad Ahsan Farooq
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, China
- Muhammad Ahsan Farooq,
| | - Weijun Zhou
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, China
- *Correspondence: Weijun Zhou,
| |
Collapse
|
13
|
Zhu X, Liu X, Liu T, Wang Y, Ahmed N, Li Z, Jiang H. Synthetic biology of plant natural products: From pathway elucidation to engineered biosynthesis in plant cells. PLANT COMMUNICATIONS 2021; 2:100229. [PMID: 34746761 PMCID: PMC8553972 DOI: 10.1016/j.xplc.2021.100229] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 04/11/2021] [Accepted: 08/06/2021] [Indexed: 05/10/2023]
Abstract
Plant natural products (PNPs) are the main sources of drugs, food additives, and new biofuels and have become a hotspot in synthetic biology. In the past two decades, the engineered biosynthesis of many PNPs has been achieved through the construction of microbial cell factories. Alongside the rapid development of plant physiology, genetics, and plant genetic modification techniques, hosts have now expanded from single-celled microbes to complex plant systems. Plant synthetic biology is an emerging field that combines engineering principles with plant biology. In this review, we introduce recent advances in the biosynthetic pathway elucidation of PNPs and summarize the progress of engineered PNP biosynthesis in plant cells. Furthermore, a future vision of plant synthetic biology is proposed. Although we are still a long way from overcoming all the bottlenecks in plant synthetic biology, the ascent of this field is expected to provide a huge opportunity for future agriculture and industry.
Collapse
Affiliation(s)
- Xiaoxi Zhu
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| | - Xiaonan Liu
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| | - Tian Liu
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- Life Science and Technology College, Guangxi University, Nanning, Guangxi 530004, China
- National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| | - Yina Wang
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
- Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Nida Ahmed
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| | - Zhichao Li
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| | - Huifeng Jiang
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China
| |
Collapse
|
14
|
A Role for Inositol Pyrophosphates in the Metabolic Adaptations to Low Phosphate in Arabidopsis. Metabolites 2021; 11:metabo11090601. [PMID: 34564416 PMCID: PMC8469675 DOI: 10.3390/metabo11090601] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 12/14/2022] Open
Abstract
Phosphate is a major plant macronutrient and low phosphate availability severely limits global crop productivity. In Arabidopsis, a key regulator of the transcriptional response to low phosphate, phosphate starvation response 1 (PHR1), is modulated by a class of signaling molecules called inositol pyrophosphates (PP-InsPs). Two closely related diphosphoinositol pentakisphosphate enzymes (AtVIP1 and AtVIP2) are responsible for the synthesis and turnover of InsP8, the most implicated molecule. This study is focused on characterizing Arabidopsis vip1/vip2 double mutants and their response to low phosphate. We present evidence that both local and systemic responses to phosphate limitation are dampened in the vip1/vip2 mutants as compared to wild-type plants. Specifically, we demonstrate that under Pi-limiting conditions, the vip1/vip2 mutants have shorter root hairs and lateral roots, less accumulation of anthocyanin and less accumulation of sulfolipids and galactolipids. However, phosphate starvation response (PSR) gene expression is unaffected. Interestingly, many of these phenotypes are opposite to those exhibited by other mutants with defects in the PP-InsP synthesis pathway. Our results provide insight on the nexus between inositol phosphates and pyrophosphates involved in complex regulatory mechanisms underpinning phosphate homeostasis in plants.
Collapse
|
15
|
Heath RS, Ruscoe RE, Turner NJ. The beauty of biocatalysis: sustainable synthesis of ingredients in cosmetics. Nat Prod Rep 2021; 39:335-388. [PMID: 34879125 DOI: 10.1039/d1np00027f] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Covering: 2015 up to July 2021The market for cosmetics is consumer driven and the desire for green, sustainable and natural ingredients is increasing. The use of isolated enzymes and whole-cell organisms to synthesise these products is congruent with these values, especially when combined with the use of renewable, recyclable or waste feedstocks. The literature of biocatalysis for the synthesis of ingredients in cosmetics in the past five years is herein reviewed.
Collapse
Affiliation(s)
- Rachel S Heath
- Manchester Institute of Biotechnology, Department of Chemistry, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
| | - Rebecca E Ruscoe
- Manchester Institute of Biotechnology, Department of Chemistry, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
| | - Nicholas J Turner
- Manchester Institute of Biotechnology, Department of Chemistry, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
| |
Collapse
|
16
|
Hung CY, Zhang J, Bhattacharya C, Li H, Kittur FS, Oldham CE, Wei X, Burkey KO, Chen J, Xie J. Transformation of Long-Lived Albino Epipremnum aureum 'Golden Pothos' and Restoring Chloroplast Development. FRONTIERS IN PLANT SCIENCE 2021; 12:647507. [PMID: 34054894 PMCID: PMC8149757 DOI: 10.3389/fpls.2021.647507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/19/2021] [Indexed: 05/27/2023]
Abstract
Chloroplasts are organelles responsible for chlorophyll biosynthesis, photosynthesis, and biosynthesis of many metabolites, which are one of key targets for crop improvement. Elucidating and engineering genes involved in chloroplast development are important approaches for studying chloroplast functions as well as developing new crops. In this study, we report a long-lived albino mutant derived from a popular ornamental plant Epipremnum aureum 'Golden Pothos' which could be used as a model for analyzing the function of genes involved in chloroplast development and generating colorful plants. Albino mutant plants were isolated from regenerated populations of variegated 'Golden Pothos' whose albino phenotype was previously found to be due to impaired expression of EaZIP, encoding Mg-protoporphyrin IX monomethyl ester cyclase. Using petioles of the mutant plants as explants with a traceable sGFP gene, an efficient transformation system was developed. Expressing Arabidopsis CHL27 (a homolog of EaZIP) but not EaZIP in albino plants restored green color and chloroplast development. Interestingly, in addition to the occurrence of plants with solid green color, plants with variegated leaves and pale-yellow leaves were also obtained in the regenerated populations. Nevertheless, our study shows that these long-lived albino plants along with the established efficient transformation system could be used for creating colorful ornamental plants. This system could also potentially be used for investigating physiological processes associated with chlorophyll levels and chloroplast development as well as certain biological activities, which are difficult to achieve using green plants.
Collapse
Affiliation(s)
- Chiu-Yueh Hung
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC, United States
| | - Jianhui Zhang
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC, United States
| | - Chayanika Bhattacharya
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC, United States
| | - Hua Li
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC, United States
| | - Farooqahmed S. Kittur
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC, United States
| | - Carla E. Oldham
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC, United States
| | - Xiangying Wei
- Institute of Oceanography, Minjiang University, Fuzhou, China
| | - Kent O. Burkey
- USDA-ARS Plant Science Research Unit, Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC, United States
| | - Jianjun Chen
- Environmental Horticulture Department, Mid-Florida Research and Education Center, University of Florida, Apopka, FL, United States
| | - Jiahua Xie
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC, United States
| |
Collapse
|
17
|
Pailliè-Jiménez ME, Stincone P, Brandelli A. Natural Pigments of Microbial Origin. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2020. [DOI: 10.3389/fsufs.2020.590439] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
|
18
|
Jin S, Hyun TK. Ectopic Expression of Production of Anthocyanin Pigment 1 ( PAP1) Improves the Antioxidant and Anti-Melanogenic Properties of Ginseng ( Panax ginseng C.A. Meyer) Hairy Roots. Antioxidants (Basel) 2020; 9:antiox9100922. [PMID: 32993165 PMCID: PMC7601150 DOI: 10.3390/antiox9100922] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 01/20/2023] Open
Abstract
The development of genetically engineered cell cultures has been suggested as a potential approach for the production of target compounds from medicinal plants. In this study, we generated PAP1 (production of anthocyanin pigment 1)-overexpressing ginseng (Panax ginseng C.A. Meyer) hairy roots to improve the production of anthocyanins, as well as the bioactivity (e.g., antioxidant and whitening activities) of ginseng. Based on differentially expressed gene analysis, we found that ectopic expression of PAP1 induced the expression of genes involved in the ‘phenylpropanoid biosynthesis’ (24 genes), and ‘flavonoid biosynthesis’ (17 genes) pathways, resulting in 191- to 341-fold increases in anthocyanin production compared to transgenic control (TC) hairy roots. Additionally, PAP1-overexpressing ginseng hairy roots exhibited an approximately seven-fold higher DPPH-free radical scavenging activity and 10-fold higher ORAC value compared to the TC. In α-melanocyte-stimulating hormone-stimulated B16F10 cells, PAP1-overexpressing ginseng hairy roots strongly inhibited the accumulation of melanin by 50 to 59% compared to mock-control. Furthermore, results obtained by quantitative real-time PCR, western blot, and tyrosinase inhibition assay suggested that the anti-melanogenic activity of PAP1-overexpressing ginseng hairy roots is mediated by tyrosinase activity inhibition. Taken together, our results suggested that the ectopic expression of PAP1 is an effective strategy for the enhancement of anthocyanin production, which improves the biological activities of ginseng root cultures.
Collapse
Affiliation(s)
| | - Tae Kyung Hyun
- Correspondence: ; Tel.: +82-43-261-2520; Fax: +82-43-271-0413
| |
Collapse
|
19
|
Belwal T, Singh G, Jeandet P, Pandey A, Giri L, Ramola S, Bhatt ID, Venskutonis PR, Georgiev MI, Clément C, Luo Z. Anthocyanins, multi-functional natural products of industrial relevance: Recent biotechnological advances. Biotechnol Adv 2020; 43:107600. [PMID: 32693016 DOI: 10.1016/j.biotechadv.2020.107600] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/06/2020] [Accepted: 07/10/2020] [Indexed: 01/09/2023]
Abstract
Anthocyanins, the color compounds of plants, are known for their wide applications in food, nutraceuticals and cosmetic industry. The biosynthetic pathway of anthocyanins is well established with the identification of potential key regulatory genes, which makes it possible to modulate its production by biotechnological means. Various biotechnological systems, including use of in vitro plant cell or tissue cultures as well as microorganisms have been used for the production of anthocyanins under controlled conditions, however, a wide range of factors affects their production. In addition, metabolic engineering technologies have also used the heterologous production of anthocyanins in recombinant plants and microorganisms. However, these approaches have mostly been tested at the lab- and pilot-scales, while very few up-scaling studies have been undertaken. Various challenges and ways of investigation are proposed here to improve anthocyanin production by using the in vitro plant cell or tissue culture and metabolic engineering of plants and microbial culture systems. All these methods are capable of modulating the production of anthocyanins , which can be further utilized for pharmaceutical, cosmetics and food applications.
Collapse
Affiliation(s)
- Tarun Belwal
- Zhejiang University, College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agri-Food Processing, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Hangzhou 310058, People's Republic of China.
| | - Gopal Singh
- G.B. Pant National Institute of Himalayan Environment, Kosi- Katarmal, Almora 263643, India; Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India
| | - Philippe Jeandet
- Research Unit, Induced Resistance and Plant Bioprotection, EA 4707, SFR Condorcet FR CNRS 3417, Faculty of Sciences, University of Reims Champagne-Ardenne, PO Box 1039, 51687 Reims Cedex 2, France
| | - Aseesh Pandey
- G.B. Pant National Institute of Himalayan Environment, Sikkim Regional Centre, Pangthang, Gangtok 737101, Sikkim, India
| | - Lalit Giri
- G.B. Pant National Institute of Himalayan Environment, Kosi- Katarmal, Almora 263643, India
| | - Sudipta Ramola
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Indra D Bhatt
- G.B. Pant National Institute of Himalayan Environment, Kosi- Katarmal, Almora 263643, India
| | - Petras Rimantas Venskutonis
- Department of Food Science and Technology, Kaunas University of Technology, Radvilėnų pl. 19, Kaunas LT-50254, Lithuania
| | - Milen I Georgiev
- Center of Plant Systems Biology and Biotechnology, Plovdiv, Bulgaria; Laboratory of Metabolomics, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Plovdiv, Bulgaria
| | - Christophe Clément
- Research Unit, Induced Resistance and Plant Bioprotection, EA 4707, SFR Condorcet FR CNRS 3417, Faculty of Sciences, University of Reims Champagne-Ardenne, PO Box 1039, 51687 Reims Cedex 2, France
| | - Zisheng Luo
- Zhejiang University, College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agri-Food Processing, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Hangzhou 310058, People's Republic of China; National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang R&D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, People's Republic of China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, People's Republic of China.
| |
Collapse
|
20
|
Saigo T, Wang T, Watanabe M, Tohge T. Diversity of anthocyanin and proanthocyanin biosynthesis in land plants. CURRENT OPINION IN PLANT BIOLOGY 2020; 55:93-99. [PMID: 32387820 DOI: 10.1016/j.pbi.2020.04.001] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 04/02/2020] [Accepted: 04/02/2020] [Indexed: 05/22/2023]
Abstract
Anthocyanins and proanthocyanidins are among the most numerous and widely distributed pigments in land plants. Given that these pigments are the valuable compounds, as stress protectants and health-promoting components because of their potent antioxidant activity, several metabolic engineering approaches focusing on these compounds have been attempted. Currently, the difference in biological functions between flavonoid decorations is focused, because some aglycone decorations were found to be key factors rendering physiological functions against environmental stresses. Therefore, metabolic diversity and functional genomics approaches focusing on anthocyanin decoration should be reconsidered. Additionally, since the production of anthocyanins and proanthocyanidins in plants is often represented in a tissue-specific manner and by stress induction, elucidation of the specific regulatory mechanisms of how these pathways have been evolved, is highly important. Here, we review current knowledge of the diversity of chemical structure and regulators of anthocyanin/proanthocyanin biosynthesis with cross-species comparison to assess metabolic evolution.
Collapse
Affiliation(s)
- Tomoki Saigo
- Graduate School of Biological Science, Nara Institute of Science and Technology (NAIST), Ikoma, 630-0192 Japan
| | - Tong Wang
- Graduate School of Biological Science, Nara Institute of Science and Technology (NAIST), Ikoma, 630-0192 Japan
| | - Mutsumi Watanabe
- Graduate School of Biological Science, Nara Institute of Science and Technology (NAIST), Ikoma, 630-0192 Japan
| | - Takayuki Tohge
- Graduate School of Biological Science, Nara Institute of Science and Technology (NAIST), Ikoma, 630-0192 Japan.
| |
Collapse
|
21
|
Usmani Z, Sharma M, Sudheer S, Gupta VK, Bhat R. Engineered Microbes for Pigment Production Using Waste Biomass. Curr Genomics 2020; 21:80-95. [PMID: 32655303 PMCID: PMC7324876 DOI: 10.2174/1389202921999200330152007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/08/2020] [Accepted: 03/16/2020] [Indexed: 12/17/2022] Open
Abstract
Agri-food waste biomass is the most abundant organic waste and has high valorisation potential for sustainable bioproducts development. These wastes are not only recyclable in nature but are also rich sources of bioactive carbohydrates, peptides, pigments, polyphenols, vitamins, natural antioxidants, etc. Bioconversion of agri-food waste to value-added products is very important towards zero waste and circular economy concepts. To reduce the environmental burden, food researchers are seeking strategies to utilize this waste for microbial pigments production and further biotechnological exploitation in functional foods or value-added products. Microbes are valuable sources for a range of bioactive molecules, including microbial pigments production through fermentation and/or utilisation of waste. Here, we have reviewed some of the recent advancements made in important bioengineering technologies to develop engineered microbial systems for enhanced pigments production using agri-food wastes biomass/by-products as substrates in a sustainable way.
Collapse
Affiliation(s)
| | - Minaxi Sharma
- Address correspondence to these authors at the ERA Chair for Food (By-) Products Valorization Technologies- VALORTECH, Estonian University of Life Sciences, Kreutzwaldi 56/5, 51006, Tartu, Estonia; Tel/Fax: +372 7313927; E-mails: ;, ;
| | | | | | - Rajeev Bhat
- Address correspondence to these authors at the ERA Chair for Food (By-) Products Valorization Technologies- VALORTECH, Estonian University of Life Sciences, Kreutzwaldi 56/5, 51006, Tartu, Estonia; Tel/Fax: +372 7313927; E-mails: ;, ;
| |
Collapse
|
22
|
Zhang C, Win KT, Kim YC, Lee S. Two types of mutations in the HEUKCHEEM gene functioning in cucumber spine color development can be used as signatures for cucumber domestication. PLANTA 2019; 250:1491-1504. [PMID: 31332520 DOI: 10.1007/s00425-019-03244-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 07/18/2019] [Indexed: 05/25/2023]
Abstract
The HEUKCHEEM gene plays an important role in spine color formation. A white spine occurs due to two mutations in HEUKCHEEM and is closely related to the regional distribution of these mutants. Mapping analysis revealed that the HEUKCHEEM gene is co-segregated with the B locus in the regulation of black spine color development in cucumber fruit. HEUKCHEEM induced the expression of the genes involved in the anthocyanin biosynthetic pathway, leading to the accumulation of anthocyanins in black spines. The transiently over-expressed HEUKCHEEM in cucumber and tobacco plants enhanced the expression of anthocyanin biosynthesis-related genes, leading to anthocyanin accumulation. However, two mutations-insertion of the 6994 bp mutator-like transposable element (MULE) sequence into the second intron and one single-nucleotide polymorphism (SNP) of C to T in the second exon of HEUKCHEEM-were identified in white spines, leading to no accumulation of anthocyanin biosynthesis-related gene transcripts and anthocyanins. Furthermore, association analysis using 104 cucumber accessions with different geographical origins revealed that the types of mutations in HEUKCHEEM are strongly linked to geographical origins. The MULE insertion is found extensively in cucumbers with white spines in East Asia and Australia. However, cucumbers with white spines in other areas could be significantly influenced by a single SNP mutation. Our results provide fundamental information on spine color development in cucumber fruits and spine color-based cucumber breeding programs.
Collapse
Affiliation(s)
- Chunying Zhang
- Plant Genomics Laboratory, Department of Bio-resource Engineering, College of Life Sciences, Sejong University, 209 Neungdong-ro, Gwanjing-gu, Seoul, 05006, Republic of Korea
| | - Khin Thanda Win
- Plant Genomics Laboratory, Department of Bio-resource Engineering, College of Life Sciences, Sejong University, 209 Neungdong-ro, Gwanjing-gu, Seoul, 05006, Republic of Korea
| | - Young-Cheon Kim
- Plant Genomics Laboratory, Department of Bio-resource Engineering, College of Life Sciences, Sejong University, 209 Neungdong-ro, Gwanjing-gu, Seoul, 05006, Republic of Korea
| | - Sanghyeob Lee
- Plant Genomics Laboratory, Department of Bio-resource Engineering, College of Life Sciences, Sejong University, 209 Neungdong-ro, Gwanjing-gu, Seoul, 05006, Republic of Korea.
- Plant Engineering Research Institute, Sejong University, 209 Neungdong-ro, Gwanjing-gu, Seoul, 05006, Republic of Korea.
| |
Collapse
|
23
|
Sen T, Barrow CJ, Deshmukh SK. Microbial Pigments in the Food Industry-Challenges and the Way Forward. Front Nutr 2019; 6:7. [PMID: 30891448 PMCID: PMC6411662 DOI: 10.3389/fnut.2019.00007] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 01/17/2019] [Indexed: 11/30/2022] Open
Abstract
Developing new colors for the food industry is challenging, as colorants need to be compatible with a food flavors, safety, and nutritional value, and which ultimately have a minimal impact on the price of the product. In addition, food colorants should preferably be natural rather than synthetic compounds. Micro-organisms already produce industrially useful natural colorants such as carotenoids and anthocyanins. Microbial food colorants can be produced at scale at relatively low costs. This review highlights the significance of color in the food industry, why there is a need to shift to natural food colors compared to synthetic ones and how using microbial pigments as food colorants, instead of colors from other natural sources, is a preferable option. We also summarize the microbial derived food colorants currently used and discuss their classification based on their chemical structure. Finally, we discuss the challenges faced by the use and development of food grade microbial pigments and how to deal with these challenges, using advanced techniques including metabolic engineering and nanotechnology.
Collapse
Affiliation(s)
- Tanuka Sen
- TERI-Deakin Nano Biotechnology Centre, The Energy and Resources Institute, New Delhi, India
| | - Colin J Barrow
- Centre for Chemistry and Biotechnology, School of Life and Environmental Sciences, Deakin University, Burwood, VIC, Australia
| | - Sunil Kumar Deshmukh
- TERI-Deakin Nano Biotechnology Centre, The Energy and Resources Institute, New Delhi, India
| |
Collapse
|
24
|
Li G, Xi J, Ji X, Li MZ, Xie DY. Non-plastidial expression of a synthetic insect geranyl pyrophosphate synthase effectively increases tobacco plant biomass. JOURNAL OF PLANT PHYSIOLOGY 2018; 221:144-155. [PMID: 29277027 DOI: 10.1016/j.jplph.2017.12.014] [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: 07/14/2017] [Revised: 12/08/2017] [Accepted: 12/16/2017] [Indexed: 06/07/2023]
Abstract
Designing effective synthetic genes of interest is a fundamental step in plant synthetic biology for biomass. Geranyl pyrophosphate (diphosphate) synthase (GPPS) catalyzes a bottleneck step toward terpenoid metabolism. We previously designed and synthesized a plant (Arabidopsis thaliana)-insect (Myzus persicae, Mp) GPPS- human influenza hemagglutinin (HA) cDNA, namely PTP-MpGPPS-HA (or PTP-sMpGPPS-HA, s: synthetic), to localize the protein in plastids and improve plant biomass. To better understand the effects of different subcellular localizations on plant performance, herein we report PTP-sMpGPPS-HA re-design to synthesize a new MpGPPS-HA cDNA, namely sMpGPPS-HA, to express a non-plastidial sMpGPPS-HA protein. The sMpGPPS-HA cDNA driven by a 2 × S 35S promoter was introduced into Nicotiana tabacum Xanthi. PTP-MpGPPS-HA and PMDC84 vector transgenic plants were also generated as positive and negative controls, respectively. Eighteen to twenty transgenic T0 lines were generated for each sMpGPPS-HA, PTP-sMpGPPS-HA, and PMDC84. Transcriptional genotyping analysis demonstrated the expression of sMpGPPS-HA in transgenic plants. Confocal microscopy analysis of transgenic progeny demonstrated the non-plastidial localization of sMpGPPS-HA. Growth of T1 transgenic and wild-type control plants showed that the expression of sMpGPPS-HA effectively increased plant height by 50-80%, leaf numbers and sizes, and dry biomass by 60-80%. Calculation of the vegetative growth rates showed that the expression of sMpGPPS-HA increased plant height each week. Moreover, sMpGPPS-HA expression promoted early flowering and reduced leaf carotenoid levels. In conclusion, non-plastidial expression of the novel sMpGPPS-HA was effective for improving tobacco growth and biomass. Our data indicate that research examining different subcellular localizations facilitates a better understanding of in planta functions of proteins encoded by synthetic cDNAs.
Collapse
Affiliation(s)
- Gui Li
- Department of Plant & Microbial Biology, North Carolina State University, Raleigh, NC, 27695, United States; State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Beijing, 100091, China
| | - Jing Xi
- Department of Plant & Microbial Biology, North Carolina State University, Raleigh, NC, 27695, United States
| | - Xiaoming Ji
- Department of Plant & Microbial Biology, North Carolina State University, Raleigh, NC, 27695, United States
| | - Ming-Zhuo Li
- Department of Plant & Microbial Biology, North Carolina State University, Raleigh, NC, 27695, United States
| | - De-Yu Xie
- Department of Plant & Microbial Biology, North Carolina State University, Raleigh, NC, 27695, United States.
| |
Collapse
|
25
|
Kim DH, Park S, Lee JY, Ha SH, Lim SH. Enhancing Flower Color through Simultaneous Expression of the B-peru and mPAP1 Transcription Factors under Control of a Flower-Specific Promoter. Int J Mol Sci 2018; 19:E309. [PMID: 29361688 PMCID: PMC5796253 DOI: 10.3390/ijms19010309] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/16/2018] [Accepted: 01/17/2018] [Indexed: 11/30/2022] Open
Abstract
Flower color is a main target for flower breeding. A transgenic approach for flower color modification requires a transgene and a flower-specific promoter. Here, we expressed the B-peru gene encoding a basic helix loop helix (bHLH) transcription factor (TF) together with the mPAP1 gene encoding an R2R3 MYB TF to enhance flower color in tobacco (Nicotiana tabacum L.), using the tobacco anthocyanidin synthase (ANS) promoter (PANS) to drive flower-specific expression. The transgenic tobacco plants grew normally and produced either dark pink (PANSBP_DP) or dark red (PANSBP_DR) flowers. Quantitative real time polymerase chain reaction (qPCR) revealed that the expression of five structural genes in the flavonoid biosynthetic pathway increased significantly in both PANSBP_DP and PANSBP_DR lines, compared with the non-transformed (NT) control. Interestingly, the expression of two regulatory genes constituting the active MYB-bHLH-WD40 repeat (WDR) (MBW) complex decreased significantly in the PANSBP_DR plants but not in the PANSBP_DP plants. Total flavonol and anthocyanin abundance correlated with flower color, with an increase of 1.6-43.2 fold in the PANSBP_DP plants and 2.0-124.2 fold in the PANSBP_DR plants. Our results indicate that combinatorial expression of B-peru and mPAP1 genes under control of the ANS promoter can be a useful strategy for intensifying flower color without growth retardation.
Collapse
Affiliation(s)
- Da-Hye Kim
- National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea.
| | - Sangkyu Park
- National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea.
| | - Jong-Yeol Lee
- National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea.
| | - Sun-Hwa Ha
- Department of Genetic Engineering and Graduate School of Biotechnology, Kyung Hee University, Yongin 17104, Korea.
| | - Sun-Hyung Lim
- National Institute of Agricultural Science, Rural Development Administration, Jeonju 54874, Korea.
| |
Collapse
|
26
|
Okitsu N, Noda N, Chandler S, Tanaka Y. Flower Color and Its Engineering by Genetic Modification. HANDBOOK OF PLANT BREEDING 2018. [DOI: 10.1007/978-3-319-90698-0_3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
27
|
Metabolic Characterization of the Anthocyanidin Reductase Pathway Involved in the Biosynthesis of Flavan-3-ols in Elite Shuchazao Tea (Camellia sinensis) Cultivar in the Field. Molecules 2017; 22:molecules22122241. [PMID: 29244739 PMCID: PMC6149802 DOI: 10.3390/molecules22122241] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 12/11/2017] [Accepted: 12/12/2017] [Indexed: 01/13/2023] Open
Abstract
Anthocyanidin reductase (ANR) is a key enzyme in the ANR biosynthetic pathway of flavan-3-ols and proanthocyanidins (PAs) in plants. Herein, we report characterization of the ANR pathway of flavan-3-ols in Shuchazao tea (Camellia sinesis), which is an elite and widely grown cultivar in China and is rich in flavan-3-ols providing with high nutritional value to human health. In our study, metabolic profiling was preformed to identify two conjugates and four aglycones of flavan-3-ols: (-)-epigallocatechin-gallate [(-)-EGCG], (-)-epicatechin-gallate [(-)-ECG], (-)-epigallocatechin [(-)-EGC], (-)-epicatechin [(-)-EC], (+)-catechin [(+)-Ca], and (+)-gallocatechin [(+)-GC], of which (-)-EGCG, (-)-ECG, (-)-EGC, and (-)-EC accounted for 70-85% of total flavan-3-ols in different tissues. Crude ANR enzyme was extracted from young leaves. Enzymatic assays showed that crude ANR extracts catalyzed cyanidin and delphinidin to (-)-EC and (-)-Ca and (-)-EGC and (-)-GC, respectively, in which (-)-EC and (-)-EGC were major products. Moreover, two ANR cDNAs were cloned from leaves, namely CssANRa and CssANRb. His-Tag fused recombinant CssANRa and CssANRb converted cyanidin and delphinidin to (-)-EC and (-)-Ca and (-)-EGC and (-)-GC, respectively. In addition, (+)-EC was observed from the catalysis of recombinant CssANRa and CssANRb. Further overexpression of the two genes in tobacco led to the formation of PAs in flowers and the reduction of anthocyanins. Taken together, these data indicate that the majority of leaf flavan-3-ols in Shuchazao's leaves were produced from the ANR pathway.
Collapse
|
28
|
Kim J, Lee WJ, Vu TT, Jeong CY, Hong SW, Lee H. High accumulation of anthocyanins via the ectopic expression of AtDFR confers significant salt stress tolerance in Brassica napus L. PLANT CELL REPORTS 2017; 36:1215-1224. [PMID: 28444442 DOI: 10.1007/s00299-017-2147-7] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Accepted: 04/18/2017] [Indexed: 05/24/2023]
Abstract
The ectopic expression of AtDFR results in increased accumulation of anthocyanins leading to enhanced salinity and drought stress tolerance in B. napus plants. Flavonoids with antioxidant effects confer many additional benefits to plants. Evidence indicates that flavonoids, including anthocyanins, protect tissues against oxidative stress from various abiotic stressors. We determined whether increases in anthocyanins increased abiotic stress tolerance in Brassica napus, because the values of B. napus L. and its cultivation area are increasing worldwide. We overexpressed Arabidopsis dihydroflavonol-4-reductase (DFR) in B. napus. Increased DFR transcript levels for AtDFR-OX B. shoots correlated with higher anthocyanin accumulation. AtDFR-OX Brassica shoots exhibited lower reactive oxygen species (ROS) accumulation than wild-type (WT) shoots under high NaCl and mannitol concentrations. This was corroborated by 3,3-diaminobenzidine staining for ROS scavenging activity in 1,1-diphenyl-2-picryl-hydrazyl assays. Shoots of the AtDFR-OX B. napus lines grown in a high salt medium exhibited enhanced salt tolerance and higher chlorophyll content than similarly grown WT plants. Our observations suggested that the AtDFR gene can be effectively manipulated to modulate salinity and drought stress tolerance by directing to high accumulation of anthocyanins in oilseed plants.
Collapse
Affiliation(s)
- Jihye Kim
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Anam-dong 5-ga, Seongbuk-Gu, Seoul, 136-713, Republic of Korea
| | - Won Je Lee
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Anam-dong 5-ga, Seongbuk-Gu, Seoul, 136-713, Republic of Korea
| | - Tien Thanh Vu
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Anam-dong 5-ga, Seongbuk-Gu, Seoul, 136-713, Republic of Korea
| | - Chan Young Jeong
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Anam-dong 5-ga, Seongbuk-Gu, Seoul, 136-713, Republic of Korea
| | - Suk-Whan Hong
- Department of Molecular Biotechnology, College of Agriculture and Life Sciences, Bioenergy Research Center, Chonnam National University, Gwangju, Republic of Korea
| | - Hojoung Lee
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Anam-dong 5-ga, Seongbuk-Gu, Seoul, 136-713, Republic of Korea.
- Institute of Life Science and Natural Resources, Korea University, Seoul, 136-713, Republic of Korea.
| |
Collapse
|
29
|
Ma D, Li G, Alejos-Gonzalez F, Zhu Y, Xue Z, Wang A, Zhang H, Li X, Ye H, Wang H, Liu B, Xie DY. Overexpression of a type-I isopentenyl pyrophosphate isomerase of Artemisia annua in the cytosol leads to high arteannuin B production and artemisinin increase. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2017; 91:466-479. [PMID: 28440881 DOI: 10.1111/tpj.13583] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 04/12/2017] [Accepted: 04/18/2017] [Indexed: 05/18/2023]
Abstract
We recently characterized a gene-terpene network that is associated with artemisinin biosynthesis in self-pollinated (SP) Artemisia annua, an effective antimalarial plant. We hypothesize that an alteration of gene expression in the network may improve the production of artemisinin and its precursors. In this study, we cloned an isopentenyl pyrophosphate isomerase (IPPI) cDNA, AaIPPI1, from Artemisia annua (Aa). The full-length cDNA encodes a type-I IPPI containing a plastid transit peptide (PTP) at its amino terminus. After the removal of the PTP, the recombinant truncated AaIPPI1 isomerized isopentenyl pyrophosphate (IPP) to dimethyl allyl pyrophosphate (DMAPP) and vice versa. The steady-state equilibrium ratio of IPP/DMAPP in the enzymatic reactions was approximately 1:7. The truncated AaIPPI1 was overexpressed in the cytosol of the SP A. annua variety. The leaves of transgenic plants produced approximately 4% arteannuin B (g g-1 , dry weight, dw) and 0.17-0.25% artemisinin (g g-1 , dw), the levels of which were significantly higher than those in the leaves of wild-type plants. In addition, transgenic plants showed an increase in artemisinic acid production of more than 1% (g g-1 , dw). In contrast, isoprene formation was significantly reduced in transgenic plants. These results provide evidence that overexpression of AaIPPI1 in the cytosol can lead to metabolic alterations of terpenoid biosynthesis, and show that these transgenic plants have the potential to yield high production levels of arteannuin B as a new precursor source for artemisinin.
Collapse
Affiliation(s)
- Dongming Ma
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Gui Li
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
| | - Fatima Alejos-Gonzalez
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
| | - Yue Zhu
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
| | - Zhen Xue
- Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Aimin Wang
- Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Hui Zhang
- Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Xing Li
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Hechun Ye
- Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Hong Wang
- University of Chinese Academy of Sciences, Beijing, China
| | - Benye Liu
- Institute of Pharmaceutical Biology, Technical University Braunschweig, Braunschweig, Germany
| | - De-Yu Xie
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, USA
| |
Collapse
|
30
|
Kumar V, Yadav SK. Pyramiding of tea Dihydroflavonol reductase and Anthocyanidin reductase increases flavan-3-ols and improves protective ability under stress conditions in tobacco. 3 Biotech 2017; 7:177. [PMID: 28664364 PMCID: PMC5491439 DOI: 10.1007/s13205-017-0819-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 04/17/2017] [Indexed: 11/28/2022] Open
Abstract
Tea (Camellia sinensis) is one of the richest sources of flavan-3-ols, an important class of flavonoids. The expression level of gene-encoded key regulatory enzymes of flavan-3-ol/anthocyanin biosynthetic pathway, dihydroflavonol 4-reductase (DFR) and anthocyanidin reductase (ANR), has been highly correlated with the flavan-3-ol contents and antioxidant activity in tea plant. In the present study, pyramiding of CsDFR and CsANR in tobacco was achieved. However, single transgenic tobacco overexpressing either CsDFR or CsANR was documented earlier. In continuation, pyramided transgenic lines were evaluated for the possible, either same or beyond, effect on flavan-3-ol accumulation and protective ability against biotic and abiotic stresses. The pyramided transgenic lines showed early flowering and improved seed yield. The transcript levels of flavan-3-ol/anthocyanin biosynthetic pathway and related genes in pyramided transgenic lines were upregulated as compared to control tobacco plants. The accumulations of flavan-3-ols were also found to be higher in pyramided transgenic lines than control tobacco plants. In contrast, anthocyanin content was observed to be decreased in pyramided transgenic lines, while DPPH activity was higher in pyramided transgenic lines. In pyramided transgenic lines, strong protective ability against feeding by Spodoptera litura was documented. The seeds of pyramided transgenic lines were also found to have better germination rate under aluminum toxicity as compared to control tobacco plants. Interestingly, the synergistic effect of these two selected genes are not beyond from transgenic lines expressing either CsDFR and CsANR alone as published earlier in terms of flavan-3-ols accumulation. However, the unique flower color and better seed germination rate are some interestingly comparable differences that were reported in pyramided lines in relation to individual transgenic plants. In conclusion, the present results reveal an interesting dynamic between CsDFR and CsANR in modulating flavan-3-ol/anthocyanin levels and functional analysis of stacked CsDFR and CsANR transgenic tobacco lines.
Collapse
Affiliation(s)
- Vinay Kumar
- Centre for Plant Sciences, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, Punjab, 151001, India.
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Council of Scientific and Industrial Research, Palampur, HP, 176061, India.
| | - Sudesh Kumar Yadav
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Council of Scientific and Industrial Research, Palampur, HP, 176061, India
- Center of Innovative and Applied Bioprocessing (CIAB), Knowledge City, Sector-81, Mohali, Punjab, India
| |
Collapse
|