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Maruyama K, Yamada H, Doi M, Ohno S. Identification of two 6'-deoxychalcone 4'-glucosyltransferase genes in dahlia (Dahlia variabilis). PLANTA 2024; 259:114. [PMID: 38587670 DOI: 10.1007/s00425-024-04395-1] [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: 08/07/2023] [Accepted: 03/19/2024] [Indexed: 04/09/2024]
Abstract
MAIN CONCLUSION Two glycosyltransferase genes belonging to UGT88 family were identified to have 6'-deoxychalcone 4'-glucosyltransferase activity in dahlia. 6'-Deoxychalcones (isoliquiritigenin and butein) are important pigments for yellow and orange to red flower color. 6'-Deoxychalcones are glucosylated at the 4'-position in vivo, but the genes encoding 6'-deoxychalcone 4'-glucosyltransferase have not yet been identified. In our previous study, it was indicated that snapdragon (Antirrhinum majus) chalcone 4'-O-glucosyltransferase (Am4'CGT) has isoliquiritigenin 4'-glucosylation activity. Therefore, to identify genes encoding 6'-deoxychalcone 4'-glucosyltransferase in dahlia (Dahlia variabilis), genes expressed in ray florets that shared high homology with Am4'CGT were explored. As a result, c34671_g1_i1 and c35662_g1_i1 were selected as candidate genes for 6'-deoxychalcone 4'-glucosyltransferases in dahlia. We conducted transient co-overexpression of three genes (c34671_g1_i1 or c35662_g1_i1, dahlia aldo-keto reductase1 (DvAKR1) or soybean (Glycine max) chalcone reductase5 (GmCHR5), and chili pepper (Capsicum annuum) MYB transcription factor (CaMYBA)) in Nicotiana benthamiana by agroinfiltration. Transient overexpression of c34671_g1_i1, DvAKR1, and CaMYBA resulted in increase in the accumulation of isoliquiritigenin 4'-glucosides, isoliquiritigenin 4'-O-glucoside, and isoliquiritigenin 4'-O-[6-O-(malonyl)-glucoside]. However, transient overexpression of c35662_g1_i1, DvAKR1, and CaMYBA did not increase accumulation of isoliquiritigenin 4'-glucosides. Using GmCHR5 instead of DvAKR1 showed similar results suggesting that c34671_g1_i1 has isoliquiritigenin 4'-glucosyltransferase activity. In addition, we conducted co-overexpression of four genes (c34671_g1_i1, c35662_g1_i1 or Am4'CGT, DvAKR1 or GmCHR5, CaMYBA, and chalcone 3-hydroxylase from dahlia). Accumulation of butein 4'-O-glucoside and butein 4'-O-[6-O-(malonyl)-glucoside] was detected for c35662_g1_i1, suggesting that c35662_g1_i1 has butein 4'-glucosyltransferase activity. Recombinant enzyme analysis also supported butein 4'-glucosyltransferases activity of c35662_g1_i1. Therefore, our results suggested that both c34671_g1_i1 and c35662_g1_i1 are 6'-deoxychalcone 4'-glucosyltransferases but with different substrate preference.
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Affiliation(s)
- Kei Maruyama
- Graduate School of Agriculture, Kyoto University, Kyoto, Kyoto, 606-8502, Japan
| | - Haruka Yamada
- Graduate School of Agriculture, Kyoto University, Kyoto, Kyoto, 606-8502, Japan
| | - Motoaki Doi
- Graduate School of Agriculture, Kyoto University, Kyoto, Kyoto, 606-8502, Japan
| | - Sho Ohno
- Graduate School of Agriculture, Kyoto University, Kyoto, Kyoto, 606-8502, Japan.
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Nishihara M, Hirabuchi A, Goto F, Nishizaki Y, Uesugi S, Watanabe A, Tasaki K, Washiashi R, Sasaki N. Production of yellow-flowered gentian plants by genetic engineering of betaxanthin pigments. THE NEW PHYTOLOGIST 2023; 240:1177-1188. [PMID: 37606277 DOI: 10.1111/nph.19218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 07/26/2023] [Indexed: 08/23/2023]
Abstract
Genetic engineering of flower color provides biotechnological products such as blue carnations or roses by accumulating delphinidin-based anthocyanins not naturally existing in these plant species. Betalains are another class of pigments that in plants are only synthesized in the order Caryophyllales. Although they have been engineered in several plant species, especially red-violet betacyanins, the yellow betaxanthins have yet to be engineered in ornamental plants. We attempted to produce yellow-flowered gentians by genetic engineering of betaxanthin pigments. First, white-flowered gentian lines were produced by knocking out the dihydroflavonol 4-reductase (DFR) gene using CRISPR/Cas9-mediated genome editing. Beta vulgaris BvCYP76AD6 and Mirabilis jalapa MjDOD, driven by gentian petal-specific promoters, flavonoid 3',5'-hydroxylase (F3'5'H) and anthocyanin 5,3'-aromatic acyltransferase (AT), respectively, were transformed into the above DFR-knockout white-flowered line; the resultant gentian plants had vivid yellow flowers. Expression analysis and pigment analysis revealed petal-specific expression and accumulation of seven known betaxanthins in their petals to c. 0.06-0.08 μmol g FW-1 . Genetic engineering of vivid yellow-flowered plants can be achieved by combining genome editing and a suitable expression of betaxanthin-biosynthetic genes in ornamental plants.
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Affiliation(s)
- Masahiro Nishihara
- Iwate Biotechnology Research Center, 22-174-4, Narita, Kitakami, Iwate, 024-0003, Japan
| | - Akiko Hirabuchi
- Iwate Biotechnology Research Center, 22-174-4, Narita, Kitakami, Iwate, 024-0003, Japan
| | - Fumina Goto
- Iwate Biotechnology Research Center, 22-174-4, Narita, Kitakami, Iwate, 024-0003, Japan
| | - Yuzo Nishizaki
- Division of Food Additives, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-9501, Japan
| | - Shota Uesugi
- Iwate Biotechnology Research Center, 22-174-4, Narita, Kitakami, Iwate, 024-0003, Japan
| | - Aiko Watanabe
- Iwate Biotechnology Research Center, 22-174-4, Narita, Kitakami, Iwate, 024-0003, Japan
| | - Keisuke Tasaki
- Iwate Biotechnology Research Center, 22-174-4, Narita, Kitakami, Iwate, 024-0003, Japan
- Department of Agriculture, Faculty of Agriculture, Tokyo University of Agriculture, 1737, Funako, Atsugi, Kanagawa, 243-0034, Japan
| | - Rie Washiashi
- Iwate Biotechnology Research Center, 22-174-4, Narita, Kitakami, Iwate, 024-0003, Japan
| | - Nobuhiro Sasaki
- Iwate Biotechnology Research Center, 22-174-4, Narita, Kitakami, Iwate, 024-0003, Japan
- Department of Agricultural Biology, Graduate School of Agriculture, Osaka Metropolitan University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan
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Aluru R, Mukherjee A, Zyryanov GV, Majee A, Santra S. Recent Trends in the Antidiabetic Prominence of Natural and Synthetic Analogues of Aurones. Curr Issues Mol Biol 2023; 45:8461-8475. [PMID: 37886976 PMCID: PMC10605527 DOI: 10.3390/cimb45100533] [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: 09/13/2023] [Revised: 09/30/2023] [Accepted: 10/07/2023] [Indexed: 10/28/2023] Open
Abstract
Natural products are a boundless source for the development of pharmaceutical agents against a wide range of human diseases. Accordingly, naturally occurring aurones possess various biological benefits, such as anticancer, antioxidant, antimicrobial, antidiabetic, anti-inflammatory, antiviral and neuroprotective effects. In addition, various studies have revealed that aurones are potential templates for the regulation of diabetes mellitus and its associated complications. Likewise, certain aurones and their analogues have been found to be remarkable kinase inhibitors of DARK2, PPAR-γ, PTPM1, AGE, α-amylase and α-glucosidase, which represents a promising approach for the treatment of chronic metabolic disorders such as diabetes. Therefore, in our present study, we provide a detailed account of the advances in aurones as antidiabetic agents over the past decade.
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Affiliation(s)
- Rammohan Aluru
- Chemical Engineering Institute, Ural Federal University, 19 Mira Str., 620002 Yekaterinburg, Russia; (R.A.); (A.M.); (G.V.Z.)
| | - Anindita Mukherjee
- Chemical Engineering Institute, Ural Federal University, 19 Mira Str., 620002 Yekaterinburg, Russia; (R.A.); (A.M.); (G.V.Z.)
| | - Grigory V. Zyryanov
- Chemical Engineering Institute, Ural Federal University, 19 Mira Str., 620002 Yekaterinburg, Russia; (R.A.); (A.M.); (G.V.Z.)
- I. Ya. Postovsky Institute of Organic Synthesis of RAS, Ural Division, 22/20 S. Kovalevskoy/Akademicheskaya Str., 620219 Yekaterinburg, Russia
| | - Adinath Majee
- Department of Chemistry, Visva-Bharati (A Central University), Birbhum, Santiniketan 731235, India;
| | - Sougata Santra
- Chemical Engineering Institute, Ural Federal University, 19 Mira Str., 620002 Yekaterinburg, Russia; (R.A.); (A.M.); (G.V.Z.)
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Li Y, Ran L, Mo T, Liu N, Zeng J, Liang A, Wang C, Suo Q, Chen Z, Wang Y, Fang N, Xu S, Xiao Y. Yellow Petal locus GaYP promotes flavonol biosynthesis and yellow coloration in petals of Asiatic cotton (Gossypium arboreum). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:98. [PMID: 37027050 DOI: 10.1007/s00122-023-04329-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 02/20/2023] [Indexed: 06/19/2023]
Abstract
Yellow Petal locus GaYP is located on chromosome 11 and encodes a Sg6 R2R3-MYB transcription factor, which promotes flavonol biosynthesis and yellow coloration in Asiatic cotton petals. Petal color is pivotal to ornamental value and reproduction of plants. Yellow coloration in plant petals is mainly attributed to colorants including carotenoids, aurones and some flavonols. To date, the genetic regulatory mechanism of flavonol biosynthesis in petals is still to be elucidated. Here, we employed Asiatic cottons with or without deep yellow coloration in petals to address this question. Multi-omic and biochemical analysis revealed significantly up-regulated transcription of flavonol structural genes and increased levels of flavonols, especially gossypetin and 6-hydroxykaempferol, in yellow petals of Asiatic cotton. Furthermore, the Yellow Petal gene (GaYP) was mapped on chromosome 11 by using a recombinant inbred line population. It was found that GaYP encoded a transcriptional factor belonging to Sg6 R2R3-MYB proteins. GaYP could bind to the promoter of flavonol synthase gene (GaFLS) and activate the transcription of downstream genes. Knocking out of GaYP or GaFLS homologs in upland cotton largely eliminated flavonol accumulation and pale yellow coloration in petals. Our results indicated that flavonol synthesis, up-regulated by the R2R3-MYB transcription activator GaYP, was the causative factor for yellow coloration of Asiatic cotton petals. In addition, knocking out of GaYP homologs also led to decrease in anthocyanin accumulation and petal size in upland cotton, suggesting that GaYP and its homologs might modulate developmental or physiological processes beyond flavonol biosynthesis.
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Affiliation(s)
- Yaohua Li
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Lingfang Ran
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Tong Mo
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Nian Liu
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Jianyan Zeng
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Aimin Liang
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Chuannan Wang
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Qingwei Suo
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Zhong Chen
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Yi Wang
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Nianjuan Fang
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Shijia Xu
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Yuehua Xiao
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China.
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5
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Wu Y, Wu S, Shi Y, Jiang L, Yang J, Wang X, Zhu K, Zhang H, Zhang J. Integrated metabolite profiling and transcriptome analysis reveal candidate genes involved in the formation of yellow Nelumbo nucifera. Genomics 2022; 114:110513. [PMID: 36309147 DOI: 10.1016/j.ygeno.2022.110513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/17/2022] [Accepted: 10/22/2022] [Indexed: 01/15/2023]
Abstract
As a worldwide major ornamental flower and a edible plant, lotus (Nelumbo nucifera) is also used as medicine and tea beverage. Here, transcriptome and metabolites of yellow (MLQS) and white (YGB) lotus cultivars during five key flower coloration stages were profiled. 2014 differentially expressed genes were detected with 11 carotenoids in lotus were identified for the first time. Then, regulatory networks between and within functional modules was reconstructed, and the correlation between module-metabolites and gene-metabolites was conducted within 3 core modules. 18 candidate genes related to the formation of yellow flower were screened out and a gene regulatory model for the flower color difference between MLQS and YGB were speculated as follows: The substrate competition between F3'H and F3'5'H and substrate specificity of FLS, together with differential expression of CCD4a and CCD4b were contribute to the differences in flavonoids and carotenoids. Besides, UGT73C2, UGT91C1-2 and SGTase, and regulation of UGTs by transcription factors PLATZ, MADS, NAC031, and MYB308 may also play a role in the upstream regulation. The following verification results indicated that functional differences existed in the coding sequences of NnCCD4b and promoters of NnCCD4a of MLQS and YGB. In all, this study preliminarily reveals the mechanism of yellow flower coloration in lotus and provides new ideas for the study of complex ornamental characters of other plants.
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Affiliation(s)
- Yanyan Wu
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, Hubei, China.
| | - Sihui Wu
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, Hubei, China.
| | - Yan Shi
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, Hubei, China.
| | - Libo Jiang
- College of Life Sciences and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China.
| | - Juxiang Yang
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, Hubei, China.
| | - Xueqin Wang
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, Hubei, China.
| | - Kaijie Zhu
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, Hubei, China.
| | - Hongyan Zhang
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, Hubei, China.
| | - Jie Zhang
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, Hubei, China.
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Ohno S, Yamada H, Maruyama K, Deguchi A, Kato Y, Yokota M, Tatsuzawa F, Hosokawa M, Doi M. A novel aldo-keto reductase gene is involved in 6'-deoxychalcone biosynthesis in dahlia (Dahlia variabilis). PLANTA 2022; 256:47. [PMID: 35871668 DOI: 10.1007/s00425-022-03958-4] [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: 04/08/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
A novel gene belonging to the aldo-keto reductase 13 family is involved in isoliquiritigenin biosynthesis in dahlia. The yellow pigments of dahlia flowers are derived from 6'-deoxychalcones, which are synthesized via a two-step process, involving the conversion of 3-malonyl-CoA and 4-coumaloyl-CoA into isoliquiritigenin in the first step, and the subsequent generation of butein from isoliquiritigenin. The first step reaction is catalyzed by chalcone synthase (CHS) and aldo-keto reductase (AKR). AKR has been implicated in the isoflavone biosynthesis in legumes, however, isolation of butein biosynthesis related AKR members are yet to be reported. A comparative RNA-seq analysis between two dahlia cultivars, 'Shukuhai' and its butein-deficient lateral mutant 'Rinka', was used in this study to identify a novel AKR gene involved in 6'-deoxychalcone biosynthesis. DvAKR1 encoded a AKR 13 sub-family protein with significant differential expression levels, and was phylogenetically distinct from the chalcone reductases, which belongs to the AKR 4A sub-family in legumes. DNA sequence variation and expression profiles of DvAKR1 gene were correlated with 6'-deoxychalcone accumulation in the tested dahlia cultivars. A single over-expression analysis of DvAKR1 was not sufficient to initiate the accumulation of isoliquiritigenin in tobacco, in contrast, its co-overexpression with a chalcone 4'-O-glucosyltransferase (Am4'CGT) from Antirrhinum majus and a MYB transcription factor, CaMYBA from Capsicum annuum successfully induced isoliquiritigenin accumulation. In addition, DvAKR1 homologous gene expression was detected in Coreopsideae species accumulating 6'-deoxychalcone, but not in Asteraceae species lacking 6'-deoxychalcone production. These results not only demonstrate the involvement of DvAKR1 in the biosynthesis of 6'-deoxychalcone in dahlia, but also show that 6'-deoxychalcone occurrence in Coreopsideae species developed evolutionarily independent from legume species.
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Affiliation(s)
- Sho Ohno
- Graduate School of Agriculture, Kyoto University, Kyoto, Kyoto, 606-8502, Japan.
| | - Haruka Yamada
- Graduate School of Agriculture, Kyoto University, Kyoto, Kyoto, 606-8502, Japan
| | - Kei Maruyama
- Graduate School of Agriculture, Kyoto University, Kyoto, Kyoto, 606-8502, Japan
| | - Ayumi Deguchi
- Graduate School of Agriculture, Kyoto University, Kyoto, Kyoto, 606-8502, Japan
- Chiba University, Chiba, 271-8510, Japan
| | - Yasunari Kato
- Graduate School of Agriculture, Kyoto University, Kyoto, Kyoto, 606-8502, Japan
| | - Mizuki Yokota
- Graduate School of Agriculture, Kyoto University, Kyoto, Kyoto, 606-8502, Japan
| | - Fumi Tatsuzawa
- Faculty of Agriculture, Iwate University, Iwate, Morioka, 020-8550, Japan
| | - Munetaka Hosokawa
- Graduate School of Agriculture, Kyoto University, Kyoto, Kyoto, 606-8502, Japan
- Kindai University, Nara, 631-0052, Japan
| | - Motoaki Doi
- Graduate School of Agriculture, Kyoto University, Kyoto, Kyoto, 606-8502, Japan
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Nakayama T. Biochemistry and regulation of aurone biosynthesis. Biosci Biotechnol Biochem 2022; 86:557-573. [PMID: 35259212 DOI: 10.1093/bbb/zbac034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/02/2022] [Indexed: 11/13/2022]
Abstract
Aurones are a group of flavonoids that confer a bright yellow coloration to certain ornamental flowers and are a promising structural target for the development of new therapeutic drugs. Since the first identification of the snapdragon aurone synthase as a polyphenol oxidase (PPO) in 2000, several important advances in the biochemistry and regulation of aurone biosynthesis have been achieved. For example, several other aurone synthases have been identified in distantly related plants, which not only include PPOs but also peroxidases. Elucidation of the subcellular localization of aurone biosynthesis in snapdragon led to the establishment of a method to genetically engineer novel yellow flowers. The crystal structure of an aurone-producing PPO was clarified and provided important insights into the structure-function relationship of aurone-producing PPOs. A locus (SULFUREA) that negatively regulates aurone biosynthesis in snapdragon was identified, illustrating the evolution of flower color pattern through selection on regulatory small RNAs.
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Affiliation(s)
- Toru Nakayama
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan
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8
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Chemical Constituents and Molecular Mechanism of the Yellow Phenotype of Yellow Mushroom (Floccularia luteovirens). J Fungi (Basel) 2022; 8:jof8030314. [PMID: 35330317 PMCID: PMC8949800 DOI: 10.3390/jof8030314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 02/06/2023] Open
Abstract
(1) Background: Yellow mushroom (Floccularia luteovirens) is a natural resource that is highly nutritional, has a high economic value, and is found in Northwest China. Despite its value, the chemical and molecular mechanisms of yellow phenotype formation are still unclear. (2) Methods: This study uses the combined analysis of transcriptome and metabolome to explain the molecular mechanism of the formation of yellow mushroom. Subcellular localization and transgene overexpression techniques were used to verify the function of the candidate gene. (3) Results: 112 compounds had a higher expression in yellow mushroom; riboflavin was the ninth most-expressed compound. HPLC showed that a key target peak at 23.128 min under visible light at 444 nm was Vb2. All proteins exhibited the closest relationship with Agaricus bisporus var. bisporus H97. One riboflavin transporter, CL911.Contig3_All (FlMCH5), was highly expressed in yellow mushrooms with a different value (log2 fold change) of −12.98, whereas it was not detected in white mushrooms. FlMCH5 was homologous to the riboflavin transporter MCH5 or MFS transporter in other strains, and the FlMCH5-GFP fusion protein was mainly located in the cell membrane. Overexpression of FlMCH5 in tobacco increased the content of riboflavin in three transgenic plants to 26 μg/g, 26.52 μg/g, and 36.94 μg/g, respectively. (4) Conclusions: In this study, it is clear that riboflavin is the main coloring compound of yellow mushrooms, and FlMCH5 is the key transport regulatory gene that produces the yellow phenotype.
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Albert NW, Lafferty DJ, Moss SMA, Davies KM. Flavonoids – flowers, fruit, forage and the future. J R Soc N Z 2022. [DOI: 10.1080/03036758.2022.2034654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Nick W. Albert
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
| | - Declan J. Lafferty
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
| | - Sarah M. A. Moss
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
| | - Kevin M. Davies
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
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10
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Rajabi A, Fahmideh L, Keykhasaber M, Omran VG. Genetic engineering of novel yellow color african violet (Saintpaulia ionantha) produced by accumulation of Aureusidin 6-O-glucoside. Biol Proced Online 2022; 24:3. [PMID: 35139820 PMCID: PMC8903692 DOI: 10.1186/s12575-022-00164-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 01/25/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Flower color is one of the main characteristics of ornamental plants. Aurones are light yellow flavonoids produced in the petals of a limited number of plant species including snapdragon (Antirrhinum majus). As a commercially-recognized species, African violet can be found in various colors except yellow. This research, aiming at changing the petals' color of African violet from white to yellow, was conducted using the simultaneous expressions of chalcone 4'-O-glucosyltransferase (4'CGT) and aureusidin synthase (AS1) genes without the need for silencing anthocyanin biosynthesis pathway genes via both transient and stable transfer methods. RESULTS The transient gene transfer among transgenic plants led to a clear change of petals' color from white to light yellow. This occurs while no change was observed in non-transgenic (Wild type) petals. In total, 15 positive transgenic plants, produced via stable gene transfer, were detected. Moreover, since their flower color was yellow, both genes were present. Meanwhile, the corresponding transformation yield was determined 20-30%. The transformation, expression and integration of genes among T0 transgenic plants were verified using the PCR, qRT-PCR and Southern blotting techniques, respectively. Furthermore, the probable color change of petals' cross-section and existence of Aureusidin 6-O-glucoside (AOG) compound were determined using a light microscope and HPLC-DAD-MSn analysis, correspondingly. CONCLUSIONS Generally, the creation of aurones biosynthesis pathway is only viable through the simultaneous expression of genes which leads to color change of African violet's petal from white to yellow. This conclusion can lead to an effective strategy to produce yellow color in ornamental plant species.
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Affiliation(s)
- Amir Rajabi
- Department of Plant Breeding and Biotechnology, University of Zabol, 98613-35856, Zabol, Iran
| | - Leila Fahmideh
- Department of Plant Breeding and Biotechnology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
| | | | - Valiollah Ghasemi Omran
- Genetic and Agricultural Biotechnology Institute of Tabarestan, University of Agriculture Science and Natural Resources, Sari, Iran
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Liu W, Feng Y, Yu S, Fan Z, Li X, Li J, Yin H. The Flavonoid Biosynthesis Network in Plants. Int J Mol Sci 2021; 22:ijms222312824. [PMID: 34884627 PMCID: PMC8657439 DOI: 10.3390/ijms222312824] [Citation(s) in RCA: 187] [Impact Index Per Article: 62.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/16/2021] [Accepted: 11/18/2021] [Indexed: 02/07/2023] Open
Abstract
Flavonoids are an important class of secondary metabolites widely found in plants, contributing to plant growth and development and having prominent applications in food and medicine. The biosynthesis of flavonoids has long been the focus of intense research in plant biology. Flavonoids are derived from the phenylpropanoid metabolic pathway, and have a basic structure that comprises a C15 benzene ring structure of C6-C3-C6. Over recent decades, a considerable number of studies have been directed at elucidating the mechanisms involved in flavonoid biosynthesis in plants. In this review, we systematically summarize the flavonoid biosynthetic pathway. We further assemble an exhaustive map of flavonoid biosynthesis in plants comprising eight branches (stilbene, aurone, flavone, isoflavone, flavonol, phlobaphene, proanthocyanidin, and anthocyanin biosynthesis) and four important intermediate metabolites (chalcone, flavanone, dihydroflavonol, and leucoanthocyanidin). This review affords a comprehensive overview of the current knowledge regarding flavonoid biosynthesis, and provides the theoretical basis for further elucidating the pathways involved in the biosynthesis of flavonoids, which will aid in better understanding their functions and potential uses.
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Affiliation(s)
- Weixin Liu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (W.L.); (Y.F.); (S.Y.); (Z.F.); (X.L.)
- Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Yi Feng
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (W.L.); (Y.F.); (S.Y.); (Z.F.); (X.L.)
- Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Suhang Yu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (W.L.); (Y.F.); (S.Y.); (Z.F.); (X.L.)
- Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Zhengqi Fan
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (W.L.); (Y.F.); (S.Y.); (Z.F.); (X.L.)
- Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Xinlei Li
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (W.L.); (Y.F.); (S.Y.); (Z.F.); (X.L.)
- Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Jiyuan Li
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (W.L.); (Y.F.); (S.Y.); (Z.F.); (X.L.)
- Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
- Correspondence: (J.L.); (H.Y.); Tel.: +86-571-6334-6372 (J.L.)
| | - Hengfu Yin
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (W.L.); (Y.F.); (S.Y.); (Z.F.); (X.L.)
- Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
- Correspondence: (J.L.); (H.Y.); Tel.: +86-571-6334-6372 (J.L.)
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Otani M, Kitayama K, Ishikuro H, Hattan JI, Maoka T, Harada H, Shiotani Y, Eguchi A, Nitasaka E, Misawa N. Construction of transgenic Ipomoea obscura that exhibits new reddish leaf and flower colors due to introduction of β-carotene ketolase and hydroxylase genes. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2021; 38:219-226. [PMID: 34393600 PMCID: PMC8329268 DOI: 10.5511/plantbiotechnology.21.0309a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 03/09/2021] [Indexed: 06/13/2023]
Abstract
Ipomoea obscura, small white morning glory, is an ornamental plant belonging to the family Convolvulaceae, and cultivated worldwide. I. obscura generates white petals including a pale-yellow colored star-shaped center (flower vein). Its fully opened flowers were known to accumulate trace amounts of carotenoids such as β-carotene. In the present study, the embryogenic calli of I. obscura, were successfully produced through its immature embryo culture, and co-cultured with Agrobacterium tumefaciens carrying the β-carotene 4,4'-ketolase (crtW) and β-carotene 3,3'-hydroxylase (crtZ) genes for astaxanthin biosynthesis in addition to the isopentenyl diphosphate isomerase (idi) and hygromycin resistance genes. Transgenic plants, in which these four genes were introduced, were regenerated from the infected calli. They generated bronze (reddish green) leaves and novel petals that exhibited a color change from pale-yellow to pale-orange in the star-shaped center part. Especially, the color of their withered leaves changed drastically. HPLC-PDA-MS analysis showed that the expanded leaves of a transgenic line (T0) produced astaxanthin (5.2% of total carotenoids), adonirubin (3.9%), canthaxanthin (3.8%), and 3-hydroxyechinenone (3.6%), which indicated that these ketocarotenoids corresponded to 16.5% of the total carotenoids produced there (530 µg g-1 fresh weight). Furthermore, the altered traits of the transgenic plants were found to be inherited to their progenies by self-crossing.
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Affiliation(s)
- Motoyasu Otani
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa 921-8836, Japan
| | - Kosuke Kitayama
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa 921-8836, Japan
| | - Hiroki Ishikuro
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa 921-8836, Japan
| | - Jun-ichiro Hattan
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa 921-8836, Japan
| | - Takashi Maoka
- Research Institute for Production Development, Kyoto 606-0805, Japan
| | - Hisashi Harada
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan
| | - Yuko Shiotani
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa 921-8836, Japan
| | - Akane Eguchi
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa 921-8836, Japan
| | - Eiji Nitasaka
- Department of Biological Science, Graduate School of Science, Kyusyu University, Fukuoka 812-8581, Japan
| | - Norihiko Misawa
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa 921-8836, Japan
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Dong NQ, Lin HX. Contribution of phenylpropanoid metabolism to plant development and plant-environment interactions. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:180-209. [PMID: 33325112 DOI: 10.1111/jipb.13054] [Citation(s) in RCA: 393] [Impact Index Per Article: 131.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 12/10/2020] [Indexed: 05/21/2023]
Abstract
Phenylpropanoid metabolism is one of the most important metabolisms in plants, yielding more than 8,000 metabolites contributing to plant development and plant-environment interplay. Phenylpropanoid metabolism materialized during the evolution of early freshwater algae that were initiating terrestrialization and land plants have evolved multiple branches of this pathway, which give rise to metabolites including lignin, flavonoids, lignans, phenylpropanoid esters, hydroxycinnamic acid amides, and sporopollenin. Recent studies have revealed that many factors participate in the regulation of phenylpropanoid metabolism, and modulate phenylpropanoid homeostasis when plants undergo successive developmental processes and are subjected to stressful environments. In this review, we summarize recent progress on elucidating the contribution of phenylpropanoid metabolism to the coordination of plant development and plant-environment interaction, and metabolic flux redirection among diverse metabolic routes. In addition, our review focuses on the regulation of phenylpropanoid metabolism at the transcriptional, post-transcriptional, post-translational, and epigenetic levels, and in response to phytohormones and biotic and abiotic stresses.
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Affiliation(s)
- Nai-Qian Dong
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics and Development, Shanghai Institute of Plant Physiology and Ecology, the Chinese Academy of Sciences, Shanghai, 200032, China
| | - Hong-Xuan Lin
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences and Collaborative Innovation Center of Genetics and Development, Shanghai Institute of Plant Physiology and Ecology, the Chinese Academy of Sciences, Shanghai, 200032, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
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