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Jin G, Deng Z, Wang H, Zhang Y, Fu R. EpMYB2 positively regulates chicoric acid biosynthesis by activating both primary and specialized metabolic genes in purple coneflower. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024. [PMID: 38596892 DOI: 10.1111/tpj.16759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 03/20/2024] [Accepted: 03/25/2024] [Indexed: 04/11/2024]
Abstract
Chicoric acid is the major active ingredient of the world-popular medicinal plant purple coneflower (Echinacea purpurea (L.) Menoch). It is recognized as the quality index of commercial hot-selling Echinacea products. While the biosynthetic pathway of chicoric acid in purple coneflower has been elucidated recently, its regulatory network remains elusive. Through co-expression and phylogenetic analysis, we found EpMYB2, a typical R2R3-type MYB transcription factor (TF) responsive to methyl jasmonate (MeJA) simulation, is a positive regulator of chicoric acid biosynthesis. In addition to directly regulating chicoric acid biosynthetic genes, EpMYB2 positively regulates genes of the upstream shikimate pathway. We also found that EpMYC2 could activate the expression of EpMYB2 by binding to its G-box site, and the EpMYC2-EpMYB2 module is involved in the MeJA-induced chicoric acid biosynthesis. Overall, we identified an MYB TF that positively regulates the biosynthesis of chicoric acid by activating both primary and specialized metabolic genes. EpMYB2 links the gap between the JA signaling pathway and chicoric acid biosynthesis. This work opens a new direction toward engineering purple coneflower with higher medicinal qualities.
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Affiliation(s)
- Ge Jin
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Zongbi Deng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Hsihua Wang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Yang Zhang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Rao Fu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, People's Republic of China
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2
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Dong X, Liu X, Cheng L, Li R, Ge S, Wang S, Cai Y, Liu Y, Meng S, Jiang CZ, Shi CL, Li T, Fu D, Qi M, Xu T. SlBEL11 regulates flavonoid biosynthesis, thus fine-tuning auxin efflux to prevent premature fruit drop in tomato. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:749-770. [PMID: 38420861 DOI: 10.1111/jipb.13627] [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: 10/24/2023] [Accepted: 01/13/2024] [Indexed: 03/02/2024]
Abstract
Auxin regulates flower and fruit abscission, but how developmental signals mediate auxin transport in abscission remains unclear. Here, we reveal the role of the transcription factor BEL1-LIKE HOMEODOMAIN11 (SlBEL11) in regulating auxin transport during abscission in tomato (Solanum lycopersicum). SlBEL11 is highly expressed in the fruit abscission zone, and its expression increases during fruit development. Knockdown of SlBEL11 expression by RNA interference (RNAi) caused premature fruit drop at the breaker (Br) and 3 d post-breaker (Br+3) stages of fruit development. Transcriptome and metabolome analysis of SlBEL11-RNAi lines revealed impaired flavonoid biosynthesis and decreased levels of most flavonoids, especially quercetin, which functions as an auxin transport inhibitor. This suggested that SlBEL11 prevents premature fruit abscission by modulating auxin efflux from fruits, which is crucial for the formation of an auxin response gradient. Indeed, quercetin treatment suppressed premature fruit drop in SlBEL11-RNAi plants. DNA affinity purification sequencing (DAP-seq) analysis indicated that SlBEL11 induced expression of the transcription factor gene SlMYB111 by directly binding to its promoter. Chromatin immunoprecipitation-quantitative polymerase chain reaction and electrophoretic mobility shift assay showed that S. lycopersicum MYELOBLASTOSIS VIRAL ONCOGENE HOMOLOG111 (SlMYB111) induces the expression of the core flavonoid biosynthesis genes SlCHS1, SlCHI, SlF3H, and SlFLS by directly binding to their promoters. Our findings suggest that the SlBEL11-SlMYB111 module modulates flavonoid biosynthesis to fine-tune auxin efflux from fruits and thus maintain an auxin response gradient in the pedicel, thereby preventing premature fruit drop.
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Affiliation(s)
- Xiufen Dong
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, China
- Key Laboratory for Quality and Safety Control of Subtropical Fruits and Vegetables, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, Ministry of Agriculture and Rural Affairs, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, China
| | - Xianfeng Liu
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Lina Cheng
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Ruizhen Li
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Siqi Ge
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Sai Wang
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Yue Cai
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Yang Liu
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Sida Meng
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Cai-Zhong Jiang
- Crops Pathology and Genetic Research Unit, United States Department of Agriculture Agricultural Research Service, Washington, DC, 20250, USA
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | | | - Tianlai Li
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Daqi Fu
- Laboratory of Fruit Biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Mingfang Qi
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
| | - Tao Xu
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, 110866, China
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Cao Y, Mei Y, Zhang R, Zhong Z, Yang X, Xu C, Chen K, Li X. Transcriptional regulation of flavonol biosynthesis in plants. HORTICULTURE RESEARCH 2024; 11:uhae043. [PMID: 38623072 PMCID: PMC11017525 DOI: 10.1093/hr/uhae043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 02/02/2024] [Indexed: 04/17/2024]
Abstract
Flavonols are a class of flavonoids that play a crucial role in regulating plant growth and promoting stress resistance. They are also important dietary components in horticultural crops due to their benefits for human health. In past decades, research on the transcriptional regulation of flavonol biosynthesis in plants has increased rapidly. This review summarizes recent progress in flavonol-specific transcriptional regulation in plants, encompassing characterization of different categories of transcription factors (TFs) and microRNAs as well as elucidation of different transcriptional mechanisms, including direct and cascade transcriptional regulation. Direct transcriptional regulation involves TFs, such as MYB, AP2/ERF, and WRKY, which can directly target the key flavonol synthase gene or other early genes in flavonoid biosynthesis. In addition, different regulation modules in cascade transcriptional regulation involve microRNAs targeting TFs, regulation between activators, interaction between activators and repressors, and degradation of activators or repressors induced by UV-B light or plant hormones. Such sophisticated regulation of the flavonol biosynthetic pathway in response to UV-B radiation or hormones may allow plants to fine-tune flavonol homeostasis, thereby balancing plant growth and stress responses in a timely manner. Based on orchestrated regulation, molecular design strategies will be applied to breed horticultural crops with excellent health-promoting effects and high resistance.
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Affiliation(s)
- Yunlin Cao
- Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation, Zhejiang University, Hangzhou, 310058, China
- Center for Drug Safety Evaluation and Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, 276000, China
| | - Yuyang Mei
- Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation, Zhejiang University, Hangzhou, 310058, China
| | - Ruining Zhang
- Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation, Zhejiang University, Hangzhou, 310058, China
| | - Zelong Zhong
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Xiaochun Yang
- Center for Drug Safety Evaluation and Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, 276000, China
| | - Changjie Xu
- Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation, Zhejiang University, Hangzhou, 310058, China
| | - Kunsong Chen
- Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation, Zhejiang University, Hangzhou, 310058, China
| | - Xian Li
- Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation, Zhejiang University, Hangzhou, 310058, China
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, 276000, China
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Yang X, Zheng S, Wang X, Wang J, Ali Shah SB, Wang Y, Gao R, Xu Z. Advances in pharmacology, biosynthesis, and metabolic engineering of Scutellaria-specialized metabolites. Crit Rev Biotechnol 2024; 44:302-318. [PMID: 36581326 DOI: 10.1080/07388551.2022.2149386] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/11/2022] [Accepted: 11/02/2022] [Indexed: 12/31/2022]
Abstract
Scutellaria Linn., which belongs to the family Lamiaceae, is a commonly used medicinal plant for heat clearing and detoxification. In particular, the roots of S. baicalensis and the entire herb of S. barbata have been widely used in traditional medicine for thousands of years. The main active components of Scutellaria, including: baicalein, wogonin, norwogonin, scutellarein, and their glycosides have potential or existing drug usage. However, the wild resources of Scutellaria plants have been overexploited, and degenerated germplasm resources cannot fulfill the requirements of chemical extraction and clinical usage. Metabolic engineering and green production via microorganisms provide alternative strategies for greater efficiency in the production of natural products. Here, we review the progress of: pharmacological investigations, multi-omics, biosynthetic pathways, and metabolic engineering of various Scutellaria species and their active compounds. In addition, based on multi-omics data, we systematically analyze the phylogenetic relationships of Scutellaria and predict candidate transcription factors related to the regulation of active flavonoids. Finally, we propose the prospects of directed evolution of core enzymes and genome-assisted breeding to alleviate the shortage of plant resources of Scutellaria. This review provides important insights into the sustainable utilization and development of Scutellaria resources.
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Affiliation(s)
- Xinyi Yang
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Sihao Zheng
- China National Traditional Chinese Medicine Co., Ltd, Beijing, China
| | - Xiaotong Wang
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Jing Wang
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Syed Basit Ali Shah
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Yu Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Ranran Gao
- The Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zhichao Xu
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
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Gao S, Yin M, Xu M, Zhang H, Li S, Han Y, Ji S, Li X, Du G. Transcription factors PuPRE6/PuMYB12 and histone deacetylase PuHDAC9-like regulate sucrose levels in pear. PLANT PHYSIOLOGY 2024; 194:1577-1592. [PMID: 38006319 DOI: 10.1093/plphys/kiad628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/29/2023] [Accepted: 09/29/2023] [Indexed: 11/27/2023]
Abstract
The improvement of fruit quality, in particular sugar content, has been a major goal of plant breeding programmes for many years. Here, 2 varieties of the Ussurian pear (Pyrus ussuriensis), Nanguo, and its high-sucrose accumulation bud sport, Nanhong, were used to study the molecular mechanisms regulating sucrose transport in fruits. Comparative transcriptome analysis showed that in Nanhong fruit, an MYB transcription factor, PuMYB12, and a sucrose transporter protein, PuSUT4-like, were expressed at higher levels, while a paclobutrazol resistance transcription factor, PuPRE6, and a histone deacetylase (HDAC), PuHDAC9-like, were expressed at lower levels in Nanguo fruit. PuSUT4-like silencing and overexpression experiments in Nanguo pear showed that PuSUT4-like is essential for sucrose transportation. PuPRE6 and PuMYB12 act as antagonistic complexes to regulate PuSUT4-like transcription and sucrose accumulation. The histone deacetylation levels of the PuMYB12 and PuSUT4-like promoters were higher in Nanguo fruit than in Nanhong fruit, and Y1H assays showed that HDAC PuHDAC9-like bound directly to the promoters of PuMYB12 and PuSUT4-like. Our results uncovered transcription regulation and epigenetic mechanisms underlying sucrose accumulation in pears.
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Affiliation(s)
- Siyang Gao
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Mingxin Yin
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Mingyang Xu
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - He Zhang
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Shuai Li
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Yinxiao Han
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Shujuan Ji
- Department of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Xinyue Li
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Department of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Guodong Du
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
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Kong CH, Li Z, Li FL, Xia XX, Wang P. Chemically Mediated Plant-Plant Interactions: Allelopathy and Allelobiosis. PLANTS (BASEL, SWITZERLAND) 2024; 13:626. [PMID: 38475470 DOI: 10.3390/plants13050626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024]
Abstract
Plant-plant interactions are a central driver for plant coexistence and community assembly. Chemically mediated plant-plant interactions are represented by allelopathy and allelobiosis. Both allelopathy and allelobiosis are achieved through specialized metabolites (allelochemicals or signaling chemicals) produced and released from neighboring plants. Allelopathy exerts mostly negative effects on the establishment and growth of neighboring plants by allelochemicals, while allelobiosis provides plant neighbor detection and identity recognition mediated by signaling chemicals. Therefore, plants can chemically affect the performance of neighboring plants through the allelopathy and allelobiosis that frequently occur in plant-plant intra-specific and inter-specific interactions. Allelopathy and allelobiosis are two probably inseparable processes that occur together in plant-plant chemical interactions. Here, we comprehensively review allelopathy and allelobiosis in plant-plant interactions, including allelopathy and allelochemicals and their application for sustainable agriculture and forestry, allelobiosis and plant identity recognition, chemically mediated root-soil interactions and plant-soil feedback, and biosynthesis and the molecular mechanisms of allelochemicals and signaling chemicals. Altogether, these efforts provide the recent advancements in the wide field of allelopathy and allelobiosis, and new insights into the chemically mediated plant-plant interactions.
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Affiliation(s)
- Chui-Hua Kong
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Zheng Li
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Feng-Li Li
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Xin-Xin Xia
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Peng Wang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
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Wang Y, Jiang W, Li C, Wang Z, Lu C, Cheng J, Wei S, Yang J, Yang Q. Integrated transcriptomic and metabolomic analyses elucidate the mechanism of flavonoid biosynthesis in the regulation of mulberry seed germination under salt stress. BMC PLANT BIOLOGY 2024; 24:132. [PMID: 38383312 PMCID: PMC10880279 DOI: 10.1186/s12870-024-04804-3] [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: 01/10/2024] [Accepted: 02/06/2024] [Indexed: 02/23/2024]
Abstract
Seed propagation is the main method of mulberry expansion in China, an important economic forest species. However, seed germination is the most sensitive stage to various abiotic stresses, especially salinity stress. To reveal the molecular regulatory mechanism of mulberry seed germination under salt stress, flavonoid metabolomics and transcriptomics analyses were performed on mulberry seeds germinated under 50 and 100 mmol/L NaCl stress. Analysis of the flavonoid metabolome revealed that a total of 145 differential flavonoid metabolites (DFMs) were classified into 9 groups, 40 flavonols, 32 flavones, 16 chalcones and 14 flavanones. Among them, 61.4% (89) of the DFMs accumulated continuously with increasing salt concentration, reaching the highest level at a 100 mmol/L salt concentration; these DFMs included quercetin-3-O-glucoside (isoquercitrin), kaempferol (3,5,7,4'-tetrahydroxyflavone), quercetin-7-O-glucoside, taxifolin (dihydroquercetin) and apigenin (4',5,7-trihydroxyflavone), indicating that these flavonoids may be key metabolites involved in the response to salt stress. Transcriptional analysis identified a total of 3055 differentially expressed genes (DEGs), most of which were enriched in flavonoid biosynthesis (ko00941), phenylpropanoid biosynthesis (ko00940) and biosynthesis of secondary metabolites (ko01110). Combined analysis of flavonoid metabolomic and transcriptomic data indicated that phenylalanine ammonia-lyase (PAL), 4-coumarate-CoA ligase (4CL), chalcone synthase (CHS), flavonol synthase (FLS), bifunctional dihydroflavonol 4-reductase/flavanone 4-reductase (DFR) and anthocyanidin reductase (ANR) were the key genes involved in flavonoid accumulation during mulberry seed germination under 50 and 100 mmol/L NaCl stress. In addition, three transcription factors, MYB, bHLH and NAC, were involved in the regulation of flavonoid accumulation under salt stress. The results of quantitative real-time PCR (qRT‒PCR) validation showed that the expression levels of 11 DEGs, including 7 genes involved in flavonoid biosynthesis, under different salt concentrations were consistent with the transcriptomic data, and parallel reaction monitoring (PRM) results showed that the expression levels of 6 key enzymes (proteins) involved in flavonoid synthesis were consistent with the accumulation of flavonoids. This study provides a new perspective for investigating the regulatory role of flavonoid biosynthesis in the regulation of mulberry seed germination under salt stress at different concentrations.
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Affiliation(s)
- Yi Wang
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, Guangdong, China.
| | - Wei Jiang
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, Guangdong, China
| | - Chenlei Li
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, Guangdong, China
| | - Zhenjiang Wang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Guangzhou, 510610, China
| | - Can Lu
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, Guangdong, China
| | - Junsen Cheng
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, Guangdong, China
| | - Shanglin Wei
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, Guangdong, China
| | - Jiasong Yang
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, Guangdong, China
| | - Qiang Yang
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, Guangdong, China
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You S, Wu Y, Li W, Liu X, Tang Q, Huang F, Li Y, Wang H, Liu M, Zhang Y. SlERF.G3-Like mediates a hierarchical transcriptional cascade to regulate ripening and metabolic changes in tomato fruit. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:165-180. [PMID: 37750661 PMCID: PMC10754011 DOI: 10.1111/pbi.14177] [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: 03/14/2023] [Revised: 07/25/2023] [Accepted: 09/02/2023] [Indexed: 09/27/2023]
Abstract
The tomato ripening process contains complex changes, including ethylene signalling, cell wall softening and numerous metabolic changes. So far, much is still unknown about how tomato plants precisely coordinate fruit maturation and metabolic regulation. In this paper, the ERF family transcription factor SlERF.G3-Like in tomato was found to be involved in the regulation of ethylene synthesis, cell wall degradation and the flavonoid pathway. We show that the master ripening regulator SlRIN was found to directly bind to the promoter region of SlERF.G3-Like to activate its expression. In addition, we managed to increase the production of resveratrol derivatives from ~1.44 mg/g DW in E8:VvStSy line to ~2.43 mg/g DW by crossing p35S: SlERF.G3-Like with the E8:VvStSy line. Our data provide direct evidence that SlERF.G3-Like, a hierarchical transcriptional factor, can directly manipulate pathways in which tomatoes can coordinate fruit maturation and metabolic changes. We also attest that SlERF.G3-Like can be used as an effective tool for phenylpropanoid metabolic engineering.
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Affiliation(s)
- Shengjie You
- Key Laboratory of Bio‐resource and Eco‐environment of Ministry of Education, College of Life SciencesSichuan UniversityChengduSichuanPeople's Republic of China
| | - Yu Wu
- Key Laboratory of Bio‐resource and Eco‐environment of Ministry of Education, College of Life SciencesSichuan UniversityChengduSichuanPeople's Republic of China
| | - Wen Li
- Key Laboratory of Bio‐resource and Eco‐environment of Ministry of Education, College of Life SciencesSichuan UniversityChengduSichuanPeople's Republic of China
| | - Xiaofeng Liu
- Key Laboratory of Bio‐resource and Eco‐environment of Ministry of Education, College of Life SciencesSichuan UniversityChengduSichuanPeople's Republic of China
| | - Qinlan Tang
- Key Laboratory of Bio‐resource and Eco‐environment of Ministry of Education, College of Life SciencesSichuan UniversityChengduSichuanPeople's Republic of China
| | - Fengkun Huang
- Sanya Nanfan Research Institute of Hainan UniversityHainan Yazhou Bay Seed LaboratorySanyaChina
- College of Tropical CropsHainan UniversityHaikouChina
| | - Yan Li
- Sanya Nanfan Research Institute of Hainan UniversityHainan Yazhou Bay Seed LaboratorySanyaChina
- College of Tropical CropsHainan UniversityHaikouChina
| | - Hsihua Wang
- Key Laboratory of Bio‐resource and Eco‐environment of Ministry of Education, College of Life SciencesSichuan UniversityChengduSichuanPeople's Republic of China
| | - Mingchun Liu
- Key Laboratory of Bio‐resource and Eco‐environment of Ministry of Education, College of Life SciencesSichuan UniversityChengduSichuanPeople's Republic of China
| | - Yang Zhang
- Key Laboratory of Bio‐resource and Eco‐environment of Ministry of Education, College of Life SciencesSichuan UniversityChengduSichuanPeople's Republic of China
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Vazquez‐Vilar M, Fernandez‐del‐Carmen A, Garcia‐Carpintero V, Drapal M, Presa S, Ricci D, Diretto G, Rambla JL, Fernandez‐Muñoz R, Espinosa‐Ruiz A, Fraser PD, Martin C, Granell A, Orzaez D. Dually biofortified cisgenic tomatoes with increased flavonoids and branched-chain amino acids content. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:2683-2697. [PMID: 37749961 PMCID: PMC10651156 DOI: 10.1111/pbi.14163] [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: 10/31/2022] [Revised: 08/02/2023] [Accepted: 08/07/2023] [Indexed: 09/27/2023]
Abstract
Higher dietary intakes of flavonoids may have a beneficial role in cardiovascular disease prevention. Additionally, supplementation of branched-chain amino acids (BCAAs) in vegan diets can reduce risks associated to their deficiency, particularly in older adults, which can cause loss of skeletal muscle strength and mass. Most plant-derived foods contain only small amounts of BCAAs, and those plants with high levels of flavonoids are not eaten broadly. Here we describe the generation of metabolically engineered cisgenic tomatoes enriched in both flavonoids and BCAAs. In this approach, coding and regulatory DNA elements, all derived from the tomato genome, were combined to obtain a herbicide-resistant version of an acetolactate synthase (mSlALS) gene expressed broadly and a MYB12-like transcription factor (SlMYB12) expressed in a fruit-specific manner. The mSlALS played a dual role, as a selectable marker as well as being key enzyme in BCAA enrichment. The resulting cisgenic tomatoes were highly enriched in Leucine (21-fold compared to wild-type levels), Valine (ninefold) and Isoleucine (threefold) and concomitantly biofortified in several antioxidant flavonoids including kaempferol (64-fold) and quercetin (45-fold). Comprehensive metabolomic and transcriptomic analysis of the biofortified cisgenic tomatoes revealed marked differences to wild type and could serve to evaluate the safety of these biofortified fruits for human consumption.
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Affiliation(s)
- Marta Vazquez‐Vilar
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones CientíficasUniversitat Politècnica de ValénciaValenciaSpain
| | - Asun Fernandez‐del‐Carmen
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones CientíficasUniversitat Politècnica de ValénciaValenciaSpain
| | - Victor Garcia‐Carpintero
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones CientíficasUniversitat Politècnica de ValénciaValenciaSpain
| | | | - Silvia Presa
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones CientíficasUniversitat Politècnica de ValénciaValenciaSpain
| | - Dorotea Ricci
- Biotechnology LaboratoryItalian Agency for New Technologies, Energy and Sustainable Development (ENEA)RomeItaly
| | - Gianfranco Diretto
- Biotechnology LaboratoryItalian Agency for New Technologies, Energy and Sustainable Development (ENEA)RomeItaly
| | - José Luis Rambla
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones CientíficasUniversitat Politècnica de ValénciaValenciaSpain
- Department of Biology, Biochemistry and Natural SciencesUniversitat Jaume ICastellón de la PlanaSpain
| | - Rafael Fernandez‐Muñoz
- Departamento de Mejora Genética y Biotecnología, Estación Experimental La Mayora, Instituto de Hortofruticultura Subtropical y Mediterránea La MayoraUniversidad de Málaga‐Consejo Superior de Investigaciones CientíficasMálagaSpain
| | - Ana Espinosa‐Ruiz
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones CientíficasUniversitat Politècnica de ValénciaValenciaSpain
| | | | | | - Antonio Granell
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones CientíficasUniversitat Politècnica de ValénciaValenciaSpain
| | - Diego Orzaez
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones CientíficasUniversitat Politècnica de ValénciaValenciaSpain
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10
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Song Y, Ma B, Feng X, Guo Q, Zhou L, Zhang X, Zhang C. Genome-Wide Analysis of the Universal Stress Protein Gene Family in Blueberry and Their Transcriptional Responses to UV-B Irradiation and Abscisic Acid. Int J Mol Sci 2023; 24:16819. [PMID: 38069138 PMCID: PMC10706445 DOI: 10.3390/ijms242316819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 11/16/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
Universal stress proteins (USPs) play essential roles in plant development, hormonal regulation, and abiotic stress responses. However, the characteristics and functional divergence of USP family members have not been studied in blueberry (Vaccinium corymbosum). In this study, we identified 72 VcUSP genes from the Genome Database for Vaccinium. These VcUSPs could be divided into five groups based on their phylogenetic relationships. VcUSPs from groups Ⅰ, Ⅳ, and Ⅴ each possess one UspA domain; group Ⅰ proteins also contain an ATP-binding site that is not present in group Ⅳ and Ⅴ proteins. Groups Ⅱ and Ⅲ include more complex proteins possessing one to three UspA domains and UspE or UspF domains. Prediction of cis-regulatory elements in the upstream sequences of VcUSP genes indicated that their protein products are likely involved in phytohormone signaling pathways and abiotic stress responses. Analysis of RNA deep sequencing data showed that 21 and 7 VcUSP genes were differentially expressed in response to UV-B radiation and exogenous abscisic acid (ABA) treatments, respectively. VcUSP41 and VcUSP68 expressions responded to both treatments, and their encoded proteins may integrate the UV-B and ABA signaling pathways. Weighted gene co-expression network analysis revealed that VcUSP22, VcUSP26, VcUSP67, VcUSP68, and VcUSP41 were co-expressed with many transcription factor genes, most of which encode members of the MYB, WRKY, zinc finger, bHLH, and AP2 families, and may be involved in plant hormone signal transduction, circadian rhythms, the MAPK signaling pathway, and UV-B-induced flavonoid biosynthesis under UV-B and exogenous ABA treatments. Our study provides a useful reference for the further functional analysis of VcUSP genes and blueberry molecular breeding.
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Affiliation(s)
| | | | | | | | | | | | - Chunyu Zhang
- College of Plant Science, Jilin University, Changchun 130062, China
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11
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Song Z, Zhao L, Ma W, Peng Z, Shi J, Pan F, Gao Y, Sui X, Rengel Z, Chen Q, Wang B. Ethylene inhibits ABA-induced stomatal closure via regulating NtMYB184-mediated flavonol biosynthesis in tobacco. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:6735-6748. [PMID: 37531314 DOI: 10.1093/jxb/erad308] [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: 12/06/2022] [Accepted: 08/01/2023] [Indexed: 08/04/2023]
Abstract
Stomatal movement can be regulated by ABA signaling through synthesis of reactive oxygen species (ROS) in guard cells. By contrast, ethylene triggers the biosynthesis of antioxidant flavonols to suppress ROS accumulation and prevent ABA-induced stomatal closure; however, the underlying mechanism remains largely unknown. In this study, we isolated and characterized the tobacco (Nicotiana tabacum) R2R3-MYB transcription factor NtMYB184, which belongs to the flavonol-specific SG7 subgroup. RNAi suppression and CRISPR/Cas9 mutation (myb184) of NtMYB184 in tobacco caused down-regulation of flavonol biosynthetic genes and decreased the concentration of flavonols in the leaves. Yeast one-hybrid assays, transactivation assays, EMSAs, and ChIP-qPCR demonstrated that NtMYB184 specifically binds to the promoters of flavonol biosynthetic genes via MYBPLANT motifs. NtMYB184 regulated flavonol biosynthesis in guard cells to modulate ROS homeostasis and stomatal aperture. ABA-induced ROS production was accompanied by the suppression of NtMYB184 and flavonol biosynthesis, which may accelerate ABA-induced stomatal closure. Furthermore, ethylene stimulated NtMYB184 expression and flavonol biosynthesis to suppress ROS accumulation and curb ABA-induced stomatal closure. In myb184, however, neither the flavonol and ROS concentrations nor the stomatal aperture varied between the ABA and ABA+ethylene treatments, indicating that NtMYB184 was indispensable for the antagonism between ethylene and ABA via regulating flavonol and ROS concentrations in the guard cells.
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Affiliation(s)
- Zhongbang Song
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China
| | - Lu Zhao
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China
| | - Wenna Ma
- Faculty of Life Science and Technology, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
| | - Zhongping Peng
- Faculty of Life Science and Technology, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
| | - Junli Shi
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China
| | - Feng Pan
- Faculty of Life Science and Technology, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
| | - Yulong Gao
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China
| | - Xueyi Sui
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China
| | - Zed Rengel
- UWA School of Agriculture and Environment, The University of Western Australia, 35 Stirling Highway, Perth, WA, 6009, Australia
- Institute for Adriatic Crops and Karst Reclamation, 21000 Split, Croatia
| | - Qi Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
| | - Bingwu Wang
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China
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12
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Liu Y, Tang N, Lin D, Deng W, Li Z. Integration of multi-omics analyses highlights the secondary metabolism response of tomato fruit to low temperature storage. Food Res Int 2023; 173:113316. [PMID: 37803628 DOI: 10.1016/j.foodres.2023.113316] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/21/2023] [Accepted: 07/22/2023] [Indexed: 10/08/2023]
Abstract
Inappropriate low temperature storage usually leads to quality deterioration of harvested tomato fruits. In this study, we performed comparative metabolome, transcriptome, and proteome analyses to comprehensively understand the effects of low temperature on metabolic changes in tomato fruit (fresh fruit, C0d; 4 °C 8 days, C8d; 4 °C 7 days and then 25 °C 1 day, C7dS1). Large amounts of secondary metabolites (including flavonoids and phenolic acids) increased after low temperature treatment. The overlap differentially accumulated metabolites in three comparative groups (C0d vs. C8d, C0d vs. C7dS1, C8d vs. C7dS1) were mainly flavonoid metabolites. A total of 1438 differentially expressed genes identified in these three comparative groups were primarily enriched in metabolic pathways and secondary metabolites biosynthesis pathways. Similarly, proteomic analysis showed that the differentially expressed proteins were enriched in the secondary metabolites biosynthesis and phenylpropanoid biosynthesis pathways. There was a strong correlation between changes in flavonoid metabolites and the expression of chalcone synthase (SlCHS), chalcone isomerase-like (SlCHIL), and coumarate 3-hydroxylase (SlC3H), which are involved in the phenylpropanoid and flavonoid biosynthesis. Additionally, seven differentially expressed MYB transcription factors were identified; SlMYB91, SlMYB106, and SlMYB70 strongly correlated with flavonoid biosynthesis structural genes after low temperature treatment. Other genes involved in fruit ripening and quality were also affected by low temperature. The data generated in this study may unravel the transcriptional regulatory network of secondary metabolism associated with low-temperature storage and provide a solid foundation for future studies.
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Affiliation(s)
- Yudong Liu
- School of Agricultural Sciences, Zhengzhou University, 450001 Zhengzhou, China; Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, 401331 Chongqing, China.
| | - Ning Tang
- Chongqing Key Laboratory of Economic Plant Biotechnology, Chongqing University of Arts and Sciences, 402160 Chongqing, China.
| | - Dongbo Lin
- College of Coastal Agricultural Sciences, Guangdong Ocean University, 524088 Zhanjiang, China.
| | - Wei Deng
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, 401331 Chongqing, China.
| | - Zhengguo Li
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, 401331 Chongqing, China.
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13
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Polturak G, Misra RC, El-Demerdash A, Owen C, Steed A, McDonald HP, Wang J, Saalbach G, Martins C, Chartrain L, Wilkinson B, Nicholson P, Osbourn A. Discovery of isoflavone phytoalexins in wheat reveals an alternative route to isoflavonoid biosynthesis. Nat Commun 2023; 14:6977. [PMID: 37914713 PMCID: PMC10620232 DOI: 10.1038/s41467-023-42464-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/12/2023] [Indexed: 11/03/2023] Open
Abstract
Isoflavones are a group of phenolic compounds mostly restricted to plants of the legume family, where they mediate important interactions with plant-associated microbes, including in defense from pathogens and in nodulation. Their well-studied health promoting attributes have made them a prime target for metabolic engineering, both for bioproduction of isoflavones as high-value molecules, and in biofortification of food crops. A key gene in their biosynthesis, isoflavone synthase, was identified in legumes over two decades ago, but little is known about formation of isoflavones outside of this family. Here we identify a specialized wheat-specific isoflavone synthase, TaCYP71F53, which catalyzes a different reaction from the leguminous isoflavone synthases, thus revealing an alternative path to isoflavonoid biosynthesis and providing a non-transgenic route for engineering isoflavone production in wheat. TaCYP71F53 forms part of a biosynthetic gene cluster that produces a naringenin-derived O-methylated isoflavone, 5-hydroxy-2',4',7-trimethoxyisoflavone, triticein. Pathogen-induced production and in vitro antimicrobial activity of triticein suggest a defense-related role for this molecule in wheat. Genomic and metabolic analyses of wheat ancestral grasses further show that the triticein gene cluster was introduced into domesticated emmer wheat through natural hybridization ~9000 years ago, and encodes a pathogen-responsive metabolic pathway that is conserved in modern bread wheat varieties.
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Affiliation(s)
- Guy Polturak
- Biochemistry and Metabolism Department, John Innes Centre, Norwich, NR4 7UH, UK.
- Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, 7610001, Israel.
| | | | - Amr El-Demerdash
- Biochemistry and Metabolism Department, John Innes Centre, Norwich, NR4 7UH, UK
- Division of Organic Chemistry, Department of Chemistry, School of Sciences, Mansoura University, Mansoura, 35516, Egypt
| | - Charlotte Owen
- Biochemistry and Metabolism Department, John Innes Centre, Norwich, NR4 7UH, UK
| | - Andrew Steed
- Crop Genetics Department, John Innes Centre, Norwich, NR4 7UH, UK
| | - Hannah P McDonald
- Molecular Microbiology Department, John Innes Centre, Norwich, NR4 7UH, UK
| | - JiaoJiao Wang
- Biochemistry and Metabolism Department, John Innes Centre, Norwich, NR4 7UH, UK
- Tsinghua-Peking Joint Center for Life Sciences, and School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | | | - Carlo Martins
- Proteomics Facility, John Innes Centre, Norwich, NR4 7UH, UK
| | | | - Barrie Wilkinson
- Molecular Microbiology Department, John Innes Centre, Norwich, NR4 7UH, UK
| | - Paul Nicholson
- Crop Genetics Department, John Innes Centre, Norwich, NR4 7UH, UK
| | - Anne Osbourn
- Biochemistry and Metabolism Department, John Innes Centre, Norwich, NR4 7UH, UK.
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14
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Li T, Zhang S, Li Y, Zhang L, Song W, Chen C, Ruan W. Simultaneous Promotion of Salt Tolerance and Phenolic Acid Biosynthesis in Salvia miltiorrhiza via Overexpression of Arabidopsis MYB12. Int J Mol Sci 2023; 24:15506. [PMID: 37958490 PMCID: PMC10648190 DOI: 10.3390/ijms242115506] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/06/2023] [Accepted: 10/17/2023] [Indexed: 11/15/2023] Open
Abstract
Transcription factors play crucial roles in regulating plant abiotic stress responses and physiological metabolic processes, which can be used for plant molecular breeding. In this study, an R2R3-MYB transcription factor gene, AtMYB12, was isolated from Arabidopsis thaliana and introduced into Salvia miltiorrhiza under the regulation of the CaMV35S promoter. The ectopic expression of AtMYB12 resulted in improved salt tolerance in S. miltiorrhiza; transgenic plants showed a more resistant phenotype under high-salinity conditions. Physiological experiments showed that transgenic plants exhibited higher chlorophyll contents, and decreased electrolyte leakage and O2- and H2O2 accumulation when subjected to salt stress. Moreover, the activity of reactive oxygen species (ROS)-scavenging enzymes was enhanced in S. miltiorrhiza via the overexpression of AtMYB12, and transgenic plants showed higher superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) activities compared with those of the wild type (WT) under salt stress, coupled with lower malondialdehyde (MDA) levels. In addition, the amount of salvianolic acid B was significantly elevated in all AtMYB12 transgenic hair roots and transgenic plants, and qRT-PCR analysis revealed that most genes in the phenolic acid biosynthetic pathway were up-regulated. In conclusion, these results demonstrated that AtMYB12 can significantly improve the resistance of plants to salt stress and promote the biosynthesis of phenolic acids by regulating genes involved in the biosynthetic pathway.
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Affiliation(s)
| | | | | | | | | | - Chengbin Chen
- College of Life Sciences, Nankai University, Tianjin 300071, China; (T.L.); (S.Z.); (Y.L.); (L.Z.); (W.S.)
| | - Weibin Ruan
- College of Life Sciences, Nankai University, Tianjin 300071, China; (T.L.); (S.Z.); (Y.L.); (L.Z.); (W.S.)
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15
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Zhang Z, Zhang X, Chen Y, Jiang W, Zhang J, Wang J, Wu Y, Wang S, Yang X, Liu M, Zhang Y. Understanding the mechanism of red light-induced melatonin biosynthesis facilitates the engineering of melatonin-enriched tomatoes. Nat Commun 2023; 14:5525. [PMID: 37684283 PMCID: PMC10491657 DOI: 10.1038/s41467-023-41307-5] [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: 01/04/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
Melatonin is a functionally conserved broad-spectrum physiological regulator found in most biological organisms in nature. Enrichment of tomato fruit with melatonin not only enhances its agronomic traits but also provides extra health benefits. In this study, we elucidate the full melatonin biosynthesis pathway in tomato fruit by identifying biosynthesis-related genes that encode caffeic acid O-methyltransferase 2 (SlCOMT2) and N-acetyl-5-hydroxytryptamine-methyltransferases 5/7 (SlASMT5/7). We further reveal that red light supplementation significantly enhances the melatonin content in tomato fruit. This induction relies on the "serotonin-N-acetylserotonin-melatonin" biosynthesis route via the SlphyB2-SlPIF4-SlCOMT2 module. Based on the regulatory mechanism, we design a gene-editing strategy to target the binding motif of SlPIF4 in the promoter of SlCOMT2, which significantly enhances the production of melatonin in tomato fruit. Our study provides a good example of how the understanding of plant metabolic pathways responding to environmental factors can guide the engineering of health-promoting foods.
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Affiliation(s)
- Zixin Zhang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Xin Zhang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Yuting Chen
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Wenqian Jiang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Jing Zhang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Jiayu Wang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Yanjun Wu
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Shouchuang Wang
- Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Sanya, 572025, China
| | - Xiao Yang
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu National Agricultural Science & Technology Center, Chengdu, 610213, China
| | - Mingchun Liu
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Yang Zhang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China.
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16
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Naeem M, Zhao W, Ahmad N, Zhao L. Beyond green and red: unlocking the genetic orchestration of tomato fruit color and pigmentation. Funct Integr Genomics 2023; 23:243. [PMID: 37453947 DOI: 10.1007/s10142-023-01162-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/18/2023]
Abstract
Fruit color is a genetic trait and a key factor for consumer acceptability and is therefore receiving increasing importance in several breeding programs. Plant pigments offer plants with a variety of colored organs that attract animals for pollination, favoring seed dispersers and conservation of species. The pigments inside plant cells not only play a light-harvesting role but also provide protection against light damage and exhibit nutritional and ecological value for health and visual pleasure in humans. Tomato (Solanum lycopersicum) is a leading vegetable crop; its fruit color formation is associated with the accumulation of several natural pigments, which include carotenoids in the pericarp, flavonoids in the peel, as well as the breakdown of chlorophyll during fruit ripening. To improve tomato fruit quality, several techniques, such as genetic engineering and genome editing, have been used to alter fruit color and regulate the accumulation of secondary metabolites in related pathways. Recently, clustered regularly interspaced short palindromic repeat (CRISPR)-based systems have been extensively used for genome editing in many crops, including tomatoes, and promising results have been achieved using modified CRISPR systems, including CAS9 (CRISPR/CRISPR-associated-protein) and CRISPR/Cas12a systems. These advanced tools in biotechnology and whole genome sequencing of various tomato species will certainly advance the breeding of tomato fruit color with a high degree of precision. Here, we attempt to summarize the current advancement and effective application of genetic engineering techniques that provide further flexibility for fruit color formation. Furthermore, we have also discussed the challenges and opportunities of genetic engineering and genome editing to improve tomato fruit color.
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Affiliation(s)
- Muhammad Naeem
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Weihua Zhao
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Naveed Ahmad
- Joint Center for Single Cell Biology, Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Lingxia Zhao
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
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17
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Wan H, Liu Y, Wang T, Jiang P, Wen W, Nie J. Comparative transcriptome and metabolome analysis identifies a citrus ERF transcription factor CsERF003 as flavonoid activator. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 334:111762. [PMID: 37295731 DOI: 10.1016/j.plantsci.2023.111762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/08/2023] [Accepted: 06/06/2023] [Indexed: 06/12/2023]
Abstract
Transcription factor (TF) modulation is a promising strategy for plant flavonoid improvement. Here, we observed evident decreases in some major flavones and flavonols and the expression of some key related genes in a 'Newhall' navel orange mutant (MT) relative to the wild type (WT). A consistently downregulated ERF TF CsERF003 in MT could increase the contents of major flavonoids and the precursor phenylalanine when transiently overexpressed in citrus fruit. Overexpression of CsERF003 in 'Micro-Tom' tomato (OE) resulted in a darker and redder fruit color than wild type 'Micro-Tom' (WTm). Two major flavonoids, naringeninchalcone and kaempferolrutinoside, were averagely induced by 7.99- and 36.83-fold in OEs, respectively, while little change was observed in other polyphenols, such as caffeic acid, ferulic acid, and gallic acid. Key genes involved in the initiation of phenylpropanoid (PAL, 4CH, and 4CL) and flavonoid (CHS and CHI) biosynthesis were up-regulated, while most genes participating in the biosynthesis of other polyphenols, such as HCT and CCR, were down-regulated in OEs. Therefore, it could be concluded that carbon flux floods into the phenylpropanoid biosynthetic pathway and is then specifically directed for flavonoid biosynthesis. CsERF003 may be a potentially promising gene for fruit quality improvement and engineering of natural flavonoid components.
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Affiliation(s)
- Haoliang Wan
- College of Horticulture, Qingdao Agricultural University/Laboratory of Quality & Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs/National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products (Qingdao)/Qingdao Key Lab of Modern Agriculture Quality and Safety Engineering, Qingdao, 266109, China; National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yihui Liu
- College of Horticulture, Qingdao Agricultural University/Laboratory of Quality & Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs/National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products (Qingdao)/Qingdao Key Lab of Modern Agriculture Quality and Safety Engineering, Qingdao, 266109, China
| | - Tongtong Wang
- College of Horticulture, Qingdao Agricultural University/Laboratory of Quality & Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs/National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products (Qingdao)/Qingdao Key Lab of Modern Agriculture Quality and Safety Engineering, Qingdao, 266109, China
| | - Peng Jiang
- Qingdao Agriculture Products Quality and Safety Center, Qingdao, 266035, China
| | - Weiwei Wen
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jiyun Nie
- College of Horticulture, Qingdao Agricultural University/Laboratory of Quality & Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs/National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products (Qingdao)/Qingdao Key Lab of Modern Agriculture Quality and Safety Engineering, Qingdao, 266109, China.
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18
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Do TMH, Choi M, Kim JK, Kim YJ, Park C, Park CH, Park NI, Kim C, Sathasivam R, Park SU. Impact of Light and Dark Treatment on Phenylpropanoid Pathway Genes, Primary and Secondary Metabolites in Agastache rugosa Transgenic Hairy Root Cultures by Overexpressing Arabidopsis Transcription Factor AtMYB12. Life (Basel) 2023; 13:life13041042. [PMID: 37109572 PMCID: PMC10142052 DOI: 10.3390/life13041042] [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: 03/28/2023] [Revised: 04/14/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023] Open
Abstract
Agastache rugosa, otherwise called Korean mint, has a wide range of medicinal benefits. In addition, it is a rich source of several medicinally valuable compounds such as acacetin, tilianin, and some phenolic compounds. The present study aimed to investigate how the Tartary buckwheat transcription factor AtMYB12 increased the primary and secondary metabolites in Korean mint hairy roots cultured under light and dark conditions. A total of 50 metabolites were detected by using high-performance liquid chromatography (HPLC) and gas chromatography-time-of-flight mass spectrometry (GC-TOFMS). The result showed that the AtMYB12 transcription factor upregulated the phenylpropanoid biosynthesis pathway genes, which leads to the highest accumulation of primary and secondary metabolites in the AtMYB12-overexpressing hairy root lines (transgenic) than that of the GUS-overexpressing hairy root line (control) when grown under the light and dark conditions. However, when the transgenic hairy root lines were grown under dark conditions, the phenolic and flavone content was not significantly different from that of the control hairy root lines. Similarly, the heat map and hierarchical clustering analysis (HCA) result showed that most of the metabolites were significantly abundant in the transgenic hairy root cultures grown under light conditions. Principal component analysis (PCA) and partial least-squares discriminant analysis (PLS-DA) showed that the identified metabolites were separated far based on the primary and secondary metabolite contents present in the control and transgenic hairy root lines grown under light and dark conditions. Metabolic pathway analysis of the detected metabolites showed 54 pathways were identified, among these 30 were found to be affected. From these results, the AtMYB12 transcription factor activity might be light-responsive in the transgenic hairy root cultures, triggering the activation of the primary and secondary metabolic pathways in Korean mint.
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Affiliation(s)
- Thi Minh Hanh Do
- Department of Smart Agriculture Systems, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Minsol Choi
- Department of Smart Agriculture Systems, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Jae Kwang Kim
- Division of Life Sciences and Convergence Research Center for Insect Vectors, College of Life Sciences and Bioengineering, Incheon National University, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Ye Jin Kim
- Division of Life Sciences and Convergence Research Center for Insect Vectors, College of Life Sciences and Bioengineering, Incheon National University, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Chanung Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Chang Ha Park
- Department of Biological Sciences, Keimyung University, Dalgubeol-daero 1095, Dalseo-gu, Daegu 42601, Republic of Korea
| | - Nam Il Park
- Division of Plant Science, Gangneung-Wonju National University, 7 Jukheon-gil, Gangneung 25457, Republic of Korea
| | - Changsoo Kim
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Ramaraj Sathasivam
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Sang Un Park
- Department of Smart Agriculture Systems, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
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Zhang Y, Duan J, Wang Q, Zhang M, Zhi H, Bai Z, Zhang Y, Luo J. The Paeonia qiui R2R3-MYB Transcription Factor PqMYBF1 Positively Regulates Flavonol Accumulation. PLANTS (BASEL, SWITZERLAND) 2023; 12:1427. [PMID: 37050052 PMCID: PMC10096829 DOI: 10.3390/plants12071427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/11/2023] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
Tree peony is a "spring colored-leaf" plant which has red leaves in early spring, and the red color of the leaves usually fades in late spring. Flavonols are one subgroup of flavonoids, and they affect the plant organs' color as co-pigments of anthocyanins. To investigate the color variation mechanism of leaves in tree peony, PqMYBF1, one flavonol biosynthesis-related MYB gene was isolated from Paeonia qiui and characterized. PqMYBF1 contained the SG7 and SG7-2 motifs which are unique in flavonol-specific MYB regulators. Subcellular localization and transactivation assay showed that PqMYBF1 localized to the nucleus and acted as a transcriptional activator. The ectopic expression of PqMYBF1 in transgenic tobacco caused an observable increase in flavonol level and the anthocyanin accumulation was decreased significantly, resulting in pale pink flowers. Dual-luciferase reporter assays showed that PqMYBF1 could activate the promoters of PqCHS, PqF3H, and PqFLS. These results suggested that PqMYBF1 could promote flavonol biosynthesis by activating PqCHS, PqF3H, and PqFLS expression, which leads metabolic flux from anthocyanin to flavonol pathway, resulting in more flavonol accumulation. These findings provide a new train of thought for the molecular mechanism of leaf color variation in tree peony in spring, which will be helpful for the molecular breeding of tree peony with colored foliage.
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Affiliation(s)
- Yue Zhang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- National Engineering Research Center for Oil Peony, Yangling 712100, China
| | - Jingjing Duan
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- National Engineering Research Center for Oil Peony, Yangling 712100, China
| | - Qiaoyun Wang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- National Engineering Research Center for Oil Peony, Yangling 712100, China
| | - Min Zhang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- National Engineering Research Center for Oil Peony, Yangling 712100, China
| | - Hui Zhi
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- National Engineering Research Center for Oil Peony, Yangling 712100, China
| | - Zhangzhen Bai
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- National Engineering Research Center for Oil Peony, Yangling 712100, China
| | - Yanlong Zhang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- National Engineering Research Center for Oil Peony, Yangling 712100, China
| | - Jianrang Luo
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- National Engineering Research Center for Oil Peony, Yangling 712100, China
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20
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Rosa-Martínez E, Bovy A, Plazas M, Tikunov Y, Prohens J, Pereira-Dias L. Genetics and breeding of phenolic content in tomato, eggplant and pepper fruits. FRONTIERS IN PLANT SCIENCE 2023; 14:1135237. [PMID: 37025131 PMCID: PMC10070870 DOI: 10.3389/fpls.2023.1135237] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 03/07/2023] [Indexed: 06/19/2023]
Abstract
Phenolic acids and flavonoids are large groups of secondary metabolites ubiquitous in the plant kingdom. They are currently in the spotlight due to the numerous health benefits associated with their consumption, as well as for their vital roles in plant biological processes and in plant-environment interaction. Tomato, eggplant and pepper are in the top ten most consumed vegetables in the world, and their fruit accumulation profiles have been extensively characterized, showing substantial differences. A broad array of genetic and genomic tools has helped to identify QTLs and candidate genes associated with the fruit biosynthesis of phenolic acids and flavonoids. The aim of this review was to synthesize the available information making it easily available for researchers and breeders. The phenylpropanoid pathway is tightly regulated by structural genes, which are conserved across species, along with a complex network of regulatory elements like transcription factors, especially of MYB family, and cellular transporters. Moreover, phenolic compounds accumulate in tissue-specific and developmental-dependent ways, as different paths of the metabolic pathway are activated/deactivated along with fruit development. We retrieved 104 annotated putative orthologues encoding for key enzymes of the phenylpropanoid pathway in tomato (37), eggplant (29) and pepper (38) and compiled 267 QTLs (217 for tomato, 16 for eggplant and 34 for pepper) linked to fruit phenolic acids, flavonoids and total phenolics content. Combining molecular tools and genetic variability, through both conventional and genetic engineering strategies, is a feasible approach to improve phenolics content in tomato, eggplant and pepper. Finally, although the phenylpropanoid biosynthetic pathway has been well-studied in the Solanaceae, more research is needed on the identification of the candidate genes behind many QTLs, as well as their interactions with other QTLs and genes.
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Affiliation(s)
- Elena Rosa-Martínez
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Valencia, Spain
| | - Arnaud Bovy
- Plant Breeding, Wageningen University & Research, Wageningen, Netherlands
| | - Mariola Plazas
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Valencia, Spain
| | - Yury Tikunov
- Plant Breeding, Wageningen University & Research, Wageningen, Netherlands
| | - Jaime Prohens
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Valencia, Spain
| | - Leandro Pereira-Dias
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Valencia, Spain
- Faculdade de Ciências, Universidade do Porto, Porto, Portugal
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21
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Herniter IA, Kim Y, Wang Y, Havill JS, Johnson-Cicalese J, Muehlbauer GJ, Iorizzo M, Vorsa N. Trait Mapping of Phenolic Acids in an Interspecific ( Vaccinium corymbosum var. caesariense × V. darrowii) Diploid Blueberry Population. PLANTS (BASEL, SWITZERLAND) 2023; 12:1346. [PMID: 36987033 PMCID: PMC10057043 DOI: 10.3390/plants12061346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/06/2023] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
Blueberries (Vaccinium sect. Cyanococcus) are a dietary source of phenolic acids, including chlorogenic acid (CGA) and related compounds such as acetylated caffeoylquinic acid (ACQA) and caffeoylarbutin (CA). These compounds are known to be potent antioxidants with potential health benefits. While the chemistry of these compounds has been extensively studied, the genetic analysis has lagged behind. Understanding the genetic basis for traits with potential health implications may be of great use in plant breeding. By characterizing genetic variation related to fruit chemistry, breeders can make more efficient use of plant diversity to develop new cultivars with higher concentrations of these potentially beneficial compounds. Using a large interspecific F1 population, developed from a cross between the temperate V. corymbosum var. ceasariense and the subtropical V. darrowii, with 1025 individuals genotyped using genotype-by-sequencing methods, of which 289 were phenotyped for phenolic acid content, with data collected across 2019 and 2020, we have identified loci associated with phenolic acid content. Loci for the compounds clustered on the proximal arm of Vc02, suggesting that a single gene or several closely associated genes are responsible for the biosynthesis of all four tested compounds. Within this region are multiple gene models similar to hydroxycinnamoyl CoA shikimate/quinate hydroxycinnamoyltransferase (HCT) and UDP glucose:cinnamate glucosyl transferase (UGCT), genes known to be involved in the CGA biosynthesis pathway. Additional loci on Vc07 and Vc12 were associated with caffeoylarbutin content, suggesting a more complicated biosynthesis of that compound.
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Affiliation(s)
- Ira A. Herniter
- Department of Plant Biology, Rutgers University, New Brunswick, NJ 08901, USA
| | - Yurah Kim
- Department of Plant Biology, Rutgers University, New Brunswick, NJ 08901, USA
| | - Yifei Wang
- Department of Plant Biology, Rutgers University, New Brunswick, NJ 08901, USA
| | - Joshua S. Havill
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN 55108, USA
| | - Jennifer Johnson-Cicalese
- Department of Plant Biology, Rutgers University, New Brunswick, NJ 08901, USA
- Phillip E. Marucci Center for Blueberry and Cranberry Research and Extension, 125a Lake Oswego Road, Chatsworth, NJ 08019, USA
| | - Gary J. Muehlbauer
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN 55108, USA
| | - Massimo Iorizzo
- Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695, USA
- Plants for Human Health Institute, North Carolina State University, Kannapolis, NC 28081, USA
| | - Nicholi Vorsa
- Department of Plant Biology, Rutgers University, New Brunswick, NJ 08901, USA
- Phillip E. Marucci Center for Blueberry and Cranberry Research and Extension, 125a Lake Oswego Road, Chatsworth, NJ 08019, USA
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Harbart V, Frede K, Fitzner M, Baldermann S. Regulation of carotenoid and flavonoid biosynthetic pathways in Lactuca sativa var capitate L. in protected cultivation. FRONTIERS IN PLANT SCIENCE 2023; 14:1124750. [PMID: 36866364 PMCID: PMC9971571 DOI: 10.3389/fpls.2023.1124750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
In the face of a growing world population and limited land, there is an urgent demand for higher productivity of food crops, and cultivation systems must be adapted to future needs. Sustainable crop production should aim for not only high yields, but also high nutritional values. In particular, the consumption of bioactive compounds such as carotenoids and flavonoids is associated with a reduced incidence of non-transmissible diseases. Modulating environmental conditions by improving cultivation systems can lead to the adaption of plant metabolisms and the accumulation of bioactive compounds. The present study investigates the regulation of carotenoid and flavonoid metabolisms in lettuce (Lactuca sativa var capitate L.) grown in a protected environment (polytunnels) compared to plants grown without polytunnels. Carotenoid, flavonoid and phytohormone (ABA) contents were determined using HPLC-MS and transcript levels of key metabolic genes were analyzed by RT-qPCR. In this study, we observed inverse contents of flavonoids and carotenoids in lettuce grown without or under polytunnels. Flavonoid contents on a total and individual level were significantly lower, while total carotenoid content was higher in lettuce plants grown under polytunnels compared to without. However, the adaptation was specific to the level of individual carotenoids. For instance, the accumulation of the main carotenoids lutein and neoxanthin was induced while the β-carotene content remained unchanged. In addition, our findings suggest that the flavonoid content of lettuce depends on transcript levels of the key biosynthetic enzyme, which is modulated by UV light. A regulatory influence can be assumed based on the relation between the concentration of the phytohormone ABA and the flavonoid content in lettuce. In contrast, the carotenoid content is not reflected in transcript levels of the key enzyme of either the biosynthetic or the degradation pathway. Nevertheless, the carotenoid metabolic flux determined using norflurazon was higher in lettuce grown under polytunnels, suggesting posttranscriptional regulation of carotenoid accumulation, which should be an integral part of future studies. Therefore, a balance needs to be found between the individual environmental factors, including light and temperature, in order to optimize the carotenoid or flavonoid contents and to obtain nutritionally highly valuable crops in protected cultivation.
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Affiliation(s)
- Vanessa Harbart
- Department Plant Quality and Food Security, Leibniz Institute of Vegetable and Ornamental Crops (IGZ), Großbeeren, Germany
- Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | - Katja Frede
- Department Plant Quality and Food Security, Leibniz Institute of Vegetable and Ornamental Crops (IGZ), Großbeeren, Germany
| | - Maria Fitzner
- Department Plant Quality and Food Security, Leibniz Institute of Vegetable and Ornamental Crops (IGZ), Großbeeren, Germany
- Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | - Susanne Baldermann
- Department Plant Quality and Food Security, Leibniz Institute of Vegetable and Ornamental Crops (IGZ), Großbeeren, Germany
- Faculty of Life Sciences: Food, Nutrition and Health, Food Metabolome, University of Bayreuth, Kulmbach, Germany
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23
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Liu X, Zhang P, Zhao Q, Huang AC. Making small molecules in plants: A chassis for synthetic biology-based production of plant natural products. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:417-443. [PMID: 35852486 DOI: 10.1111/jipb.13330] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
Plant natural products have been extensively exploited in food, medicine, flavor, cosmetic, renewable fuel, and other industrial sectors. Synthetic biology has recently emerged as a promising means for the cost-effective and sustainable production of natural products. Compared with engineering microbes for the production of plant natural products, the potential of plants as chassis for producing these compounds is underestimated, largely due to challenges encountered in engineering plants. Knowledge in plant engineering is instrumental for enabling the effective and efficient production of valuable phytochemicals in plants, and also paves the way for a more sustainable future agriculture. In this manuscript, we briefly recap the biosynthesis of plant natural products, focusing primarily on industrially important terpenoids, alkaloids, and phenylpropanoids. We further summarize the plant hosts and strategies that have been used to engineer the production of natural products. The challenges and opportunities of using plant synthetic biology to achieve rapid and scalable production of high-value plant natural products are also discussed.
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Affiliation(s)
- Xinyu Liu
- Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, Department of Biology, School of Life Sciences, SUSTech-PKU Institute of Plant and Food Science, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Peijun Zhang
- Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, Department of Biology, School of Life Sciences, SUSTech-PKU Institute of Plant and Food Science, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Qiao Zhao
- Shenzhen Institutes of Advanced Technology (SIAT), the Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Ancheng C Huang
- Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, Department of Biology, School of Life Sciences, SUSTech-PKU Institute of Plant and Food Science, Southern University of Science and Technology, Shenzhen, 518055, China
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24
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Transcriptional and Physiological Analysis Reveal New Insights into the Regulation of Fertilization (N, P, K) on the Growth and Synthesis of Medicinal Components of Dendrobium denneanum. Int J Mol Sci 2023; 24:ijms24021522. [PMID: 36675032 PMCID: PMC9866100 DOI: 10.3390/ijms24021522] [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: 12/16/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
Dendrobium denneanum is an important medicinal and ornamental plant. Its ornamental and medicinal values are affected by its vegetative growth conditions and chemical composition accumulation. This study adopted an orthogonal experimental design to treat D. denneanum with nine different levels of nitrogen (N), potassium (K), and phosphorus (P). The morphological indicators of the plant were positively correlated with the nitrogen concentration. The polysaccharide content was the highest at 1500 mg·L-1 nitrogen and 3000 mg·L-1 phosphorous and was 26.84% greater than the control. The flavonoid content increased by 36.2% at 500 mg·L-1 nitrogen, 2000 mg·L-1 phosphorous, and 300 mg·L-1 potassium. Principal component score analysis showed that nitrogen had the most significant impact on the various indicators of D. denneanum, followed by phosphorus and potassium. The comprehensive score showed that the T9 treatment (N: 1500 mg·L-1, P: 3000 mg·L-1, K: 500 mg·L-1) had the strongest effect on D. denneanum. Transcriptional analysis showed that compared with the control, the T9 treatment led to 2277 differentially expressed genes (1230 upregulated and 1047 downregulated). This includes fifteen genes enriched in the MAPK signaling pathway, five genes in phenylpropanoid biosynthesis, and two genes in flavonoid biosynthesis. These genes may be involved in regulating plant growth and the biosynthesis of polysaccharides and flavonoids. This study provides guidance for the optimal use of N, P, and K in the cultivation of D. denneanum.
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Wang J, Zhang H, Tian S, Hao W, Chen K, Du L. The R2R3MYB transcription factors MaMYBF and MaMYB1 regulate flavonoid biosynthesis in grape hyacinth. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 194:85-95. [PMID: 36395598 DOI: 10.1016/j.plaphy.2022.11.010] [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: 07/23/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
R2R3 MYBs play vital roles in the regulation of flavonoid biosynthesis. However, the regulatory network of R2R3 MYBs in flavonoid biosynthesis is not fully understood in grape hyacinth (Muscari spp.). Here, we identified two R2R3 MYBs, MaMYBF and MaMYB1, as potential regulators of flavonol and anthocyanin biosynthesis, respectively. MaMYBF and MaMYB1 expression was elevated during flower development and was light-induced, and the expression patterns were related to those of the flavonoid structural genes MaFLS and MaDFR, respectively. The BiFC assay verified that MaMYB1 interacts with MabHLH1, but MaMYBF does not. A dual luciferase assay revealed that MaMYBF alone strongly activated pMaFLS, and its activation was attenuated at reduced doses of MaMYBF in the presence of MabHLH1, MaMybA, and MaMYB1. MaDFR transcription mediated by MaMybA and MabHLH1 was inhibited by MaMYB1. Moreover, overexpression of MaMYBF and MaMYB1 in tobacco reduced flower pigmentation and repressed the expression of flavonoid pathway key structural genes. Therefore, MaMYBF regulates the flavonol pathway independently of cofactors. Whereas MaMYB1 regulates anthocyanin biosynthesis by binding to MabHLH1 and disrupting the MaMybA-bHLH complex in grape hyacinth. Our results offer new insights into the intricate regulatory network of flavonoids in grape hyacinth involving the regulation of both flavonol and anthocyanin.
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Affiliation(s)
- Jiangyu Wang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, PR China
| | - Han Zhang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, PR China
| | - Shuting Tian
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, PR China
| | - Wenhui Hao
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, PR China
| | - Kaili Chen
- College of Fisheries, Southwest University, Rongchang, 402460, Chongqing, PR China
| | - Lingjuan Du
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, PR China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, PR China.
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26
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Pineda-Hidalgo KV, Flores-Leyva B, Salazar-Salas NY, Chávez-Ontiveros J, Garzon-Tiznado JA, Sánchez-López J, Delgado-Vargas F, López-Valenzuela JA. Expression of MYB transcription factors and target genes and its association with phenolic content and antioxidant activity of selected Solanum lycopersicum var. cerasiforme accessions from Mexico. CYTA - JOURNAL OF FOOD 2022. [DOI: 10.1080/19476337.2022.2144951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
| | - Brianda Flores-Leyva
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, México
| | - Nancy Y. Salazar-Salas
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, México
| | | | - José A. Garzon-Tiznado
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, México
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27
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Benali T, Bakrim S, Ghchime R, Benkhaira N, El Omari N, Balahbib A, Taha D, Zengin G, Hasan MM, Bibi S, Bouyahya A. Pharmacological insights into the multifaceted biological properties of quinic acid. Biotechnol Genet Eng Rev 2022:1-30. [PMID: 36123811 DOI: 10.1080/02648725.2022.2122303] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/20/2022] [Indexed: 11/02/2022]
Abstract
Quinic acid is a cyclohexanecarboxylic acid contained in the extracts of several parts of medicinal plants including Haematocarpus validus, Hypericum empetrifolium, Achillea pseudoaleppica, Rumex nepalensis, Phagnalon saxatile subsp. saxatile, Coffea arabica, Ziziphus lotus L, and Artemisia annua L … etc. Currently, in vitro and in vivo pharmacological studies showed that quinic acid exhibits various biological activities, such as antioxidant, antidiabetic, anticancer activity, antimicrobial, antiviral, aging, protective, anti-nociceptive and analgesic effects. Indeed, QA possesses an important antibacterial effect which could be explained by the fact that this molecule modules the functions of ribosomes and the synthesis of aminoacyl-tRNAs, modifications the levels of glycerophospholipids and fatty acids and disruption of the oxidative phosphorylation pathway thereby causing interference with membrane fluidity. The antidiabetic activity of AQ is achieved by stimulation of insulin secretion via the mobilization of Ca2+ from intracellular reserves and the increase in the NAD(P)H/NAD(P)+ ratio. Its anticancer effect is through the promotion of apoptosis, inhibition of activator protein 1 (AP-1) and signaling pathways involving protein kinase C (PKC) and certain mitogen-activated protein kinases (MAPKs), resulting in the downregulation of matrix metallopeptidase 9 (MMP-9) expression. Therefore, this review describes the main research work carried out on the biological properties of AQ and the mechanism of action underlying some of these effects, as well as the investigations of the main pharmacokinetic studies.
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Affiliation(s)
- Taoufiq Benali
- Environment and Health Team, Polydisciplinary Faculty of Safi, Cadi Ayyad University, Safi, Morocco
| | - Saad Bakrim
- Molecular Engineering, Valorization, and Environment Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr 19 University, Agadir, Morocco
| | - Rokaia Ghchime
- Geo-Bio-Environment Engineering and Innovation Laboratory, Molecular Engineering, Biotechnologies and Innovation Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr University, Agadir, Morocco
| | - Nisrine Benkhaira
- Laboratory of Microbial Biotechnology and Bioactive Molecules, Sciences and Technologies Faculty, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Nasreddine El Omari
- Laboratory of Histology, Embryology, and Cytogenetic, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Abdelaali Balahbib
- Laboratory of Biodiversity, Ecology and Genome, Faculty of Sciences, Mohammed V University, Rabat, Morocco
| | - Doaue Taha
- Department 16 of Chemistry, Faculty of Sciences, Molecular Modeling, Materials, Nanomaterials, Water and Environment Laboratory institution, Mohammed V University in Rabat, Rabat, Morocco
| | - Gökhan Zengin
- Department of Biology, Science Faculty, Selcuk University, Konya, Turkey
| | - Mohammad Mehedi Hasan
- Department of Biochemistry and Molecular Biology, Faculty of Life Science, Mawlana Bhashani Science and Technology University, Tangail, Bangladesh
| | - Shabana Bibi
- Department of Biosciences, Shifa Tameer-e-Millat University, Islamabad, Pakistan
| | - Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, and Genomic Center 11 of Human Pathologies, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
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Yao X, Wuzhang K, Peng B, Chen T, Zhang Y, Liu H, Li L, Fu X, Tang K. Engineering the expression of plant secondary metabolites-genistein and scutellarin through an efficient transient production platform in Nicotiana benthamiana L. FRONTIERS IN PLANT SCIENCE 2022; 13:994792. [PMID: 36147222 PMCID: PMC9485999 DOI: 10.3389/fpls.2022.994792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 08/15/2022] [Indexed: 06/16/2023]
Abstract
Plant natural products (PNPs) are active substances indispensable to human health with a wide range of medical and commercial applications. However, excessive population growth, overexploitation of natural resources, and expensive total chemical synthesis have led to recurrent supply shortages. Despite the fact that the microbial production platform solved these challenges, the platform still has drawbacks such as environmental pollution, high costs, and non-green production. In this study, an efficient platform for the production of PNPs based on the transient expression system of Nicotiana benthamiana L. combined with synthetic biology strategies was developed. Subsequently, the feasibility of the platform was verified by a simple "test unit." This platform was used to synthesize two high-value PNPs: genistein (5.51 nmol g-1 FW) and scutellarin (11.35 nmol g-1 FW). Importantly, this is the first report on the synthesis of scutellarin in heterologous plants. The platform presented here will possibly be adopted for the heterologous production of genistein and scutellarin in tobacco plants as a novel and sustainable production strategy.
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Wu Z, Singh SK, Lyu R, Pattanaik S, Wang Y, Li Y, Yuan L, Liu Y. Metabolic engineering to enhance the accumulation of bioactive flavonoids licochalcone A and echinatin in Glycyrrhiza inflata (Licorice) hairy roots. FRONTIERS IN PLANT SCIENCE 2022; 13:932594. [PMID: 36061790 PMCID: PMC9434314 DOI: 10.3389/fpls.2022.932594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 07/18/2022] [Indexed: 06/01/2023]
Abstract
Echinatin and licochalcone A (LCA) are valuable chalcones preferentially accumulated in roots and rhizomes of licorice (Glycyrrhiza inflata). The licorice chalcones (licochalcones) are valued for their anti-inflammatory, antimicrobial, and antioxidant properties and have been widely used in cosmetic, pharmaceutical, and food industries. However, echinatin and LCA are accumulated in low quantities, and the biosynthesis and regulation of licochalcones have not been fully elucidated. In this study, we explored the potential of a R2R3-MYB transcription factor (TF) AtMYB12, a known regulator of flavonoid biosynthesis in Arabidopsis, for metabolic engineering of the bioactive flavonoids in G. inflata hairy roots. Overexpression of AtMYB12 in the hairy roots greatly enhanced the production of total flavonoids (threefold), echinatin (twofold), and LCA (fivefold). RNA-seq analysis of AtMYB12-overexpressing hairy roots revealed that expression of phenylpropanoid/flavonoid pathway genes, such as phenylalanine ammonia-lyase (PAL), chalcone synthase (CHS), and flavanone 3'-hydroxylase (F3'H), is significantly induced compared to the control. Transient promoter activity assay indicated that AtMYB12 activates the GiCHS1 promoter in plant cells, and mutation to the MYB-binding motif in the GiCHS1 promoter abolished activation. In addition, transcriptomic analysis revealed that AtMYB12 overexpression reprograms carbohydrate metabolism likely to increase carbon flux into flavonoid biosynthesis. Further, AtMYB12 activated the biotic defense pathways possibly by activating the salicylic acid and jasmonic acid signaling, as well as by upregulating WRKY TFs. The transcriptome of AtMYB12-overexpressing hairy roots serves as a valuable source in the identification of potential candidate genes involved in LCA biosynthesis. Taken together, our findings suggest that AtMYB12 is an effective gene for metabolic engineering of valuable bioactive flavonoids in plants.
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Affiliation(s)
- Zhigeng Wu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Sanjay Kumar Singh
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, United States
| | - Ruiqing Lyu
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, United States
| | - Sitakanta Pattanaik
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, United States
| | - Ying Wang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yongqing Li
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Ling Yuan
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, United States
| | - Yongliang Liu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, United States
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Zhang Y, Xiao J, Yang K, Wang Y, Tian Y, Liang Z. Transcriptomic and metabonomic insights into the biocontrol mechanism of Trichoderma asperellum M45a against watermelon Fusarium wilt. PLoS One 2022; 17:e0272702. [PMID: 35947630 PMCID: PMC9365129 DOI: 10.1371/journal.pone.0272702] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/26/2022] [Indexed: 11/18/2022] Open
Abstract
Watermelon (Citrullus lanatus) is one of the most popular fruit crops. However, Fusarium wilt (FW) is a serious soil-borne disease caused by Fusarium oxysporum f. sp. niveum (FON) that severely limits the development of the watermelon industry. Trichoderma spp. is an important plant anti-pathogen biocontrol agent. The results of our previous study indicated that Trichoderma asperellum M45a (T. asperellum M45a) could control FW by enhancing the relative abundance of plant growth-promoting rhizobacteria (PGPR) in the rhizosphere of watermelon. However, there are few studies on its mechanism in the pathogen resistance of watermelon. Therefore, transcriptome sequencing of T. asperellum M45a-treated watermelon roots combined with metabolome sequencing of the rhizosphere soil was performed with greenhouse pot experiments. The results demonstrated that T. asperellum M45a could stably colonize roots and significantly increase the resistance-related enzymatic activities (e.g., lignin, cinnamic acid, peroxidase and peroxidase) of watermelon. Moreover, the expression of defense-related genes such as MYB and PAL in watermelon roots significantly improved with the inoculation of T. asperellum M45a. In addition, KEGG pathway analysis showed that a large number of differentially expressed genes were significantly enriched in phenylpropane metabolic pathways, which may be related to lignin and cinnamic acid synthesis, thus further inducing the immune response to resist FON. Furthermore, metabolic analysis indicated that four differential metabolic pathways were enriched in M45a-treated soil, including six upregulated compounds and one down-regulated compound. Among them, galactinol and urea were significantly positively correlated with Trichoderma. Hence, this study provides insight into the biocontrol mechanism of T. asperellum M45a to resist soil-borne diseases, which can guide its industrial application.
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Affiliation(s)
- Yi Zhang
- Hunan Rice Research Institute, Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Changsha, Hunan, China
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China
| | - Jiling Xiao
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China
- Institute of Agricultural Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan, China
| | - Ke Yang
- Institute of Agricultural Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan, China
| | - Yuqin Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China
| | - Yun Tian
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China
- * E-mail: (YT); (ZL)
| | - Zhihuai Liang
- Institute of Agricultural Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan, China
- * E-mail: (YT); (ZL)
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31
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Zhao Y, Zhang G, Tang Q, Song W, Gao Q, Xiang G, Li X, Liu G, Fan W, Li X, Yang S, Zhai C. EbMYBP1, a R2R3-MYB transcription factor, promotes flavonoid biosynthesis in Erigeron breviscapus. FRONTIERS IN PLANT SCIENCE 2022; 13:946827. [PMID: 35968130 PMCID: PMC9366350 DOI: 10.3389/fpls.2022.946827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/07/2022] [Indexed: 06/12/2023]
Abstract
Erigeron breviscapus, a traditional Chinese medicinal plant, is enriched in flavonoids that are beneficial to human health. While we know that R2R3-MYB transcription factors (TFs) are crucial to flavonoid pathway, the transcriptional regulation of flavonoid biosynthesis in E. breviscapus has not been fully elucidated. Here, EbMYBP1, a R2R3-MYB transcription factor, was uncovered as a regulator involved in the regulation of flavonoid accumulation. Transcriptome and metabolome analysis revealed that a large group of genes related to flavonoid biosynthesis were significantly changed, accompanied by significantly increased concentrations of the flavonoid in EbMYBP1-OE transgenic tobacco compared with the wild-type (WT). In vitro and in vivo investigations showed that EbMYBP1 participated in flavonoid biosynthesis, acting as a nucleus-localized transcriptional activator and activating the transcription of flavonoid-associated genes like FLS, F3H, CHS, and CHI by directly binding to their promoters. Collectively, these new findings are advancing our understanding of the transcriptional regulation that modulates the flavonoid biosynthesis.
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Affiliation(s)
- Yan Zhao
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Guanghui Zhang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
| | - Qingyan Tang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
| | - Wanling Song
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
| | - Qingqing Gao
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Guisheng Xiang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
| | - Xia Li
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Guanze Liu
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
| | - Wei Fan
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
| | - Xiaoning Li
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
| | - Shengchao Yang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National and Local Joint Engineering Research Center on Germplasms Innovation and Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming, China
| | - Chenxi Zhai
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, United States
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32
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Transcriptomic and metabolomic profiling reveals the mechanisms of color and taste development in cherry tomato cultivars. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Xie L, Guo Y, Ren C, Cao Y, Li J, Lin J, Grierson D, Zhao X, Zhang B, Sun C, Chen K, Li X. Unravelling the consecutive glycosylation and methylation of flavonols in peach in response to UV-B irradiation. PLANT, CELL & ENVIRONMENT 2022; 45:2158-2175. [PMID: 35357710 DOI: 10.1111/pce.14323] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/02/2022] [Accepted: 03/05/2022] [Indexed: 06/14/2023]
Abstract
Flavonol glycosides are bioactive compounds important for plant defence and human nutrition. Glycosylation and methylation play an important role in enriching the diversity of flavonols in response to the environment. Peach flowers and fruit are rich in flavonol diglycosides such as isorhamnetin 3-O-rutinoside (I3Rut), kaempferol 3-O-rutinoside and quercetin 3-O-rutinoside, and flavonol monoglycosides such as I 3-O-glucoside and Q 3-O-galactoside. UV-B irradiation of fruit significantly induced accumulation of all these flavonol glycosides. Candidate biosynthetic genes induced by UV-B were identified by genome homology searches and the in vitro catalytic activities of purified recombinant proteins determined. PpUGT78T3 and PpUGT78A2 were identified as flavonol 3-O-glucosyltransferase and 3-O-galactosyltransferase, respectively. PpUGT91AK6 was identified as flavonol 1,6-rhamnosyl trasferase catalysing the formation of flavonol rutinosides and PpFOMT1 was identified as a flavonol O-methyltransferase that methylated Q at the 3'-OH-OH to form isorhamnetin derivatives. Transient expression in Nicotiana benthamiana confirmed the specificity of PpUGT78T3 as a flavonol 3-O-glucosyltransferase, PpUGT78A2 as a 3-O-galactosyltransferase, PpUGT91AK6 as a 1,6-rhamnosyltrasferase and PpFOMT1 as an O-methyltransferase. This study provides new insights into the mechanisms of glycosylation and methylation of flavonols, especially the formation of flavonol diglycosides such as I3Rut, and will also be useful for future potential metabolic engineering of complex flavonols.
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Affiliation(s)
- Linfeng Xie
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Yan Guo
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Chuanhong Ren
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Yunlin Cao
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Jiajia Li
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Jing Lin
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Donald Grierson
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
- Plant and Crop Sciences Division, School of Biosciences, University of Nottingham, Loughborough, UK
| | - Xiaoyong Zhao
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Bo Zhang
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Chongde Sun
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Kunsong Chen
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
| | - Xian Li
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou, China
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Cao S, Duan H, Sun Y, Hu R, Wu B, Lin J, Deng W, Li Y, Zheng H. Genome-Wide Association Study With Growth-Related Traits and Secondary Metabolite Contents in Red- and White-Heart Chinese Fir. FRONTIERS IN PLANT SCIENCE 2022; 13:922007. [PMID: 35845628 PMCID: PMC9280351 DOI: 10.3389/fpls.2022.922007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
Chinese fir [Cunninghamia lanceolata (Lamb.) Hook] is an important evergreen coniferous tree species that is widely distributed in many southern provinces of China and has important economic value. The Chinese fir accounts for 1/4 and 1/3 of the total artificial forest area and stock volume, respectively. Red-heart Chinese fir is popular in the market because of its high density and red heartwood. The long-growth cycle hindered the breeding process of Chinese fir, while molecular marker-assisted breeding could accelerate it. However, Chinese fir, a perennial conifer species, has a large genome, which has not yet been published. In this study, the growth-related traits and secondary metabolite contents of red- and white-heart Chinese fir were measured and found to be different between them. There are extremely significant differences among growth-related traits (p < 0.001), but secondary metabolite contents have different correlations due to differences in chemical structure. Moreover, genotype effect analysis of the substantially correlated single nucleotide polymorphisms (SNPs) revealed that most of the loci related to each growth-related traits were different from each other, indicating a type specificity of the genes regulated different growth-related traits. Furthermore, among the loci related to secondary metabolite contents, nine loci associated with multiple metabolite phenotypes such as Marker21022_4, Marker21022_172, Marker24559_31, Marker27425_37, Marker20748_85, Marker18841_115, Marker18841_198, Marker65846_146, and Marker21486_163, suggesting the presence of pleiotropic genes. This study identified the potential SNP markers associated with secondary metabolites in Chinese fir, thus setting the basis for molecular marker-assisted selection.
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Affiliation(s)
- Sen Cao
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Hongjing Duan
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
- Experimental School Affiliated to Chinese Academy of Sciences, Beijing, China
| | - Yuhan Sun
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Ruiyang Hu
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
- Experimental Center of Forestry in North China, Chinese Academy of Forestry, Beijing, China
| | - Bo Wu
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Jun Lin
- Longshan State Forest Farm of Lechang, Lechang, China
| | - Wenjian Deng
- Longshan State Forest Farm of Lechang, Lechang, China
| | - Yun Li
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Huiquan Zheng
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, China
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Research Progress on the Synthetic Biology of Botanical Biopesticides. Bioengineering (Basel) 2022; 9:bioengineering9050207. [PMID: 35621485 PMCID: PMC9137473 DOI: 10.3390/bioengineering9050207] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/06/2022] [Accepted: 05/09/2022] [Indexed: 11/17/2022] Open
Abstract
The production and large-scale application of traditional chemical pesticides will bring environmental pollution and food safety problems. With the advantages of high safety and environmental friendliness, botanical biopesticides are in line with the development trend of modern agriculture and have gradually become the mainstream of modern pesticide development. However, the traditional production of botanical biopesticides has long been faced with prominent problems, such as limited source and supply, complicated production processes, and excessive consumption of resources. In recent years, the rapid development of synthetic biology will break through these bottlenecks, and many botanical biopesticides are produced using synthetic biology, such as emodin, celangulin, etc. This paper reviews the latest progress and application prospect of synthetic biology in the development of botanical pesticides so as to provide new ideas for the analysis of synthetic pathways and heterologous and efficient production of botanical biopesticides and accelerate the research process of synthetic biology of natural products.
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Scarano A, Gerardi C, Sommella E, Campiglia P, Chieppa M, Butelli E, Santino A. Engineering the polyphenolic biosynthetic pathway stimulates metabolic and molecular changes during fruit ripening in "Bronze" tomato. HORTICULTURE RESEARCH 2022; 9:uhac097. [PMID: 35795395 PMCID: PMC9249581 DOI: 10.1093/hr/uhac097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 04/07/2022] [Indexed: 06/15/2023]
Abstract
The metabolic engineered Bronze tomato line is characterized by the constitutive over-expression of the VvStSy gene encoding a structural protein responsible for the stilbenoids biosynthesis and the fruit-specific over-expression of AmDel/Rosea1 and AtMYB12 genes encoding transcription factors that activate the polyphenol biosynthetic pathway. This tomato line is known for the increased levels of polyphenols in ripe fruits and for beneficial health promoting antioxidant and anti-inflammatory effects. In this study we analyzed the transcriptional and metabolic profiling in mature green, breaker, orange and ripe fruits compared to the normal tomato counterparts during ripening, to unravel the effect of regulatory and structural transgenes on metabolic fluxes of primary and secondary metabolisms. Our results showed that the shikimate synthase (SK) gene was up-regulated in the Bronze fruit, and the transcriptional activation is consistent with the metabolic changes observed throughout fruit ripening. These results paralleled with a reduced level of simple sugars and malate, highlighting the consumption of primary metabolites to favor secondary metabolites production and accumulation. Finally, carotenoids quantification revealed a change in the lycopene/β-carotene ratio in the Bronze fruit as a consequence of significant lower level of the first and higher levels of the latter. The high polyphenols and β-carotene content displayed by the Bronze fruit at the later stages of fruit ripening renders this line an interesting model to study the additive or synergic effects of these phyto-chemicals in the prevention of human pathologies.
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Affiliation(s)
- Aurelia Scarano
- ISPA-CNR, Institute of Science of Food Production, C.N.R. Unit of Lecce, 73100 Lecce, Italy
| | - Carmela Gerardi
- ISPA-CNR, Institute of Science of Food Production, C.N.R. Unit of Lecce, 73100 Lecce, Italy
| | - Eduardo Sommella
- Department of Pharmacy, School of Pharmacy, University of Salerno, 84084 Fisciano (SA), Italy
| | - Pietro Campiglia
- Department of Pharmacy, School of Pharmacy, University of Salerno, 84084 Fisciano (SA), Italy
| | - Marcello Chieppa
- Department of Public Health, Experimental and Forensic Medicine, Dietetics and Clinical Nutrition Laboratory, University of Pavia, Pavia, Italy
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Does Plant Breeding for Antioxidant-Rich Foods Have an Impact on Human Health? Antioxidants (Basel) 2022; 11:antiox11040794. [PMID: 35453479 PMCID: PMC9024522 DOI: 10.3390/antiox11040794] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/04/2022] [Accepted: 04/12/2022] [Indexed: 02/07/2023] Open
Abstract
Given the general beneficial effects of antioxidants-rich foods on human health and disease prevention, there is a continuous interest in plant secondary metabolites conferring attractive colors to fruits and grains and responsible, together with others, for nutraceutical properties. Cereals and Solanaceae are important components of the human diet, thus, they are the main targets for functional food development by exploitation of genetic resources and metabolic engineering. In this review, we focus on the impact of antioxidants-rich cereal and Solanaceae derived foods on human health by analyzing natural biodiversity and biotechnological strategies aiming at increasing the antioxidant level of grains and fruits, the impact of agronomic practices and food processing on antioxidant properties combined with a focus on the current state of pre-clinical and clinical studies. Despite the strong evidence in in vitro and animal studies supporting the beneficial effects of antioxidants-rich diets in preventing diseases, clinical studies are still not sufficient to prove the impact of antioxidant rich cereal and Solanaceae derived foods on human
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Guizani M, Dabbou S, Maatallah S, Montevecchi G, Antonelli A, Serrano M, Hajlaoui H, Rezig M, Kilani-Jaziri S. Evaluation of Two Water Deficit Models on Phenolic Profiles and Antioxidant Activities of Different Peach Fruits Parts. Chem Biodivers 2022; 19:e202100851. [PMID: 35312161 DOI: 10.1002/cbdv.202100851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 03/09/2022] [Indexed: 01/16/2023]
Abstract
The present work was designed to evaluate the effects of two water shortage strategies on the phenolic profile and antioxidants activities of four Prunus persica L. cultivars (Flordastar, Early May crest, Rubirich and O'Henry). Over the course of two successive seasons (2016 and 2017), three different irrigation strategies were tested: full irrigation (FI: 100 % crop evapotranspiration (Etc)), sustained deficit irrigation (SDI: 50 % ETc), and cyclic deficit irrigation (CDI: irrigation at 100 % field capacity with a soil moisture of 50 % field capacity). HPLC-UV/VIS profile of phenolic compounds, enzymatic and non-enzymatic antioxidant activities were assessed in exocarp and mesocarp. The results showed that deficit irrigation improved the content of phenolic compounds and the antioxidant activities. In O'Henry, ascorbate peroxidase activity increased significantly under CDI in exocarp (249 %). In conclusion, most cultivars showed an improvement of the fruit quality under SDI, whereas O'Henry fruits gathered the highest phenolic amounts and displayed the best antioxidant activity under CDI.
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Affiliation(s)
- Monia Guizani
- University of Carthage, Non-Conventional Water Valuation Research Laboratory (LR VENC), INRGREF, Hedi EL Karray Street, El Menzah IV, 1004 Tunis, Tunisia.,Institution of Research and Higher Education Agriculture (IRESA), Regional Center of Agricultural Research, Sidi Bouzid, 9100, Tunisia
| | - Samia Dabbou
- Unit of Bioactive and Natural Substances and Biotechnology UR17ES49, Dentistry Faculty, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia.,Dentistry Faculty, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia
| | - Samira Maatallah
- University of Carthage, Non-Conventional Water Valuation Research Laboratory (LR VENC), INRGREF, Hedi EL Karray Street, El Menzah IV, 1004 Tunis, Tunisia.,Institution of Research and Higher Education Agriculture (IRESA), Regional Center of Agricultural Research, Sidi Bouzid, 9100, Tunisia
| | - Giuseppe Montevecchi
- Department of Life Science, BIOGEST - SITEIA Interdepartmental Center, University of Modena and Reggio Emilia, Piazzale Europa 1, 42124, Reggio Emilia, Italy
| | - Andrea Antonelli
- Department of Life Science, BIOGEST - SITEIA Interdepartmental Center, University of Modena and Reggio Emilia, Piazzale Europa 1, 42124, Reggio Emilia, Italy
| | - Maria Serrano
- Department of Applied Biology, University Miguel Hernández, 03202, Elche, Spain
| | - Hichem Hajlaoui
- University of Carthage, Non-Conventional Water Valuation Research Laboratory (LR VENC), INRGREF, Hedi EL Karray Street, El Menzah IV, 1004 Tunis, Tunisia.,Institution of Research and Higher Education Agriculture (IRESA), Regional Center of Agricultural Research, Sidi Bouzid, 9100, Tunisia
| | - Mourad Rezig
- Laboratory of Rural Engineering, National Institute of Research of Rural Engineering, Waters and Forests of Tunis, INRGREF, Hedi EL Karray Street, El Menzah IV, 1004, Tunis, Tunisia
| | - Soumaya Kilani-Jaziri
- Unit of Bioactive and Natural Substances and Biotechnology UR17ES49, Dentistry Faculty, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia.,Department of Pharmaceutical Sciences A, Faculty of Pharmacy of Monastir University of Monastir, Avicenne Street, 5019, Monastir, Tunisia
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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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Comparative transcriptome and weighted correlation network analyses reveal candidate genes involved in chlorogenic acid biosynthesis in sweet potato. Sci Rep 2022; 12:2770. [PMID: 35177832 PMCID: PMC8854667 DOI: 10.1038/s41598-022-06794-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 02/07/2022] [Indexed: 11/16/2022] Open
Abstract
Chlorogenic acids (CGAs) are important secondary metabolites produced in sweet potato. However, the mechanisms of their biosynthesis and regulation remain unclear. To identify potential genes involved in CGA biosynthesis, analysis of the dynamic changes in CGA components and RNA sequencing were performed on young leaves (YL), mature leaves (ML), young stems (YS), mature stems (MS) and storage roots (SR). Accordingly, we found that the accumulation of six CGA components varied among the different tissues and developmental stages, with YS and YL recording the highest levels, while SR exhibited low levels. Moreover, the transcriptome analysis yielded 59,287 unigenes, 3,767 of which were related to secondary-metabolite pathways. The differentially expressed genes (DEGs) were identified based on CGA content levels by comparing the different samples, including ML vs. YL, MS vs. YS, SR vs. YL and SR vs. YS. A total of 501 common DEGs were identified, and these were mainly implicated in the secondary metabolites biosynthesis. Additionally, eight co-expressed gene modules were identified following weighted gene co-expression network analysis, while genes in darkgrey module were highly associated with CGA accumulation. Darkgrey module analysis revealed that 12 unigenes encoding crucial enzymes (PAL, 4CL, C4H, C3H and HCT/HQT) and 42 unigenes encoding transcription factors (MYB, bHLH, WD40, WRKY, ERF, MADS, GARS, bZIP and zinc finger protein) had similar expression patterns with change trends of CGAs, suggesting their potential roles in CGA metabolism. Our findings provide new insights into the biosynthesis and regulatory mechanisms of CGA pathway, and will inform future efforts to build a genetically improve sweet potato through the breeding of high CGA content varieties.
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Diversity: current and prospective secondary metabolites for nutrition and medicine. Curr Opin Biotechnol 2021; 74:164-170. [PMID: 34942505 DOI: 10.1016/j.copbio.2021.11.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 10/28/2021] [Accepted: 11/29/2021] [Indexed: 12/11/2022]
Abstract
Plants have been used as sources of food, feed and medicine for millennia. The ever-increasing population has, however, dramatically increased the burden on our arable land to meet nutritional demand. Concomitantly, and in part due to poor nutrition, we are faced with massive increases in chronic diseases, meaning the need for medicine has also increased. Here, we look back on research in these areas, surveying the polyphenols as a case study for health-conferring metabolites. We conclude that the tools that will allow us to breed more nutritious crops are all at hand. We stress that collaboration between plant and medical research needs to be intensified in order to improve our understanding of the bioactivities. In doing so, we attempt to draw a roadmap for the use of plants for mid-21st Century human health.
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Zheng Y, Chen Y, Liu Z, Wu H, Jiao F, Xin H, Zhang L, Yang L. Important Roles of Key Genes and Transcription Factors in Flower Color Differences of Nicotianaalata. Genes (Basel) 2021; 12:1976. [PMID: 34946925 PMCID: PMC8701347 DOI: 10.3390/genes12121976] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 12/26/2022] Open
Abstract
Nicotiana alata is an ornamental horticultural plant with a variety of flower colors and a long flowering period. The genes in four different colored N. alata (white, purple, red, and lemon green) were analyzed to explain the differences in flower color using transcriptomes. A total of 32 differential expression genes in the chlorophyll biosynthesis pathway and 41 in the anthocyanin biosynthesis pathway were identified. The enrichment analysis showed that the chlorophyll biosynthesis pathway and anthocyanin biosynthesis pathway play critical roles in the color differences of N. alata. The HEMA of the chlorophyll biosynthesis pathway was up-regulated in lemon green flowers. Compared with white flowers, in the red and purple flowers, F3H, F3'5'H and DFR were significantly up-regulated, while FLS was significantly down-regulated. Seventeen differential expression genes homologous to transcription factor coding genes were obtained, and the homologues of HY5, MYB12, AN1 and AN4 were also involved in flower color differences. The discovery of these candidate genes related to flower color differences is significant for further research on the flower colors formation mechanism and color improvements of N. alata.
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Affiliation(s)
- Yalin Zheng
- College of Plant Protection and Agricultural Big-Data Research Center, Shandong Agricultural University, Tai’an 271018, China; (Y.Z.); (Y.C.); (Z.L.); (H.W.); (L.Z.)
| | - Yudong Chen
- College of Plant Protection and Agricultural Big-Data Research Center, Shandong Agricultural University, Tai’an 271018, China; (Y.Z.); (Y.C.); (Z.L.); (H.W.); (L.Z.)
| | - Zhiguo Liu
- College of Plant Protection and Agricultural Big-Data Research Center, Shandong Agricultural University, Tai’an 271018, China; (Y.Z.); (Y.C.); (Z.L.); (H.W.); (L.Z.)
| | - Hui Wu
- College of Plant Protection and Agricultural Big-Data Research Center, Shandong Agricultural University, Tai’an 271018, China; (Y.Z.); (Y.C.); (Z.L.); (H.W.); (L.Z.)
| | - Fangchan Jiao
- Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China;
| | - Haiping Xin
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China;
| | - Li Zhang
- College of Plant Protection and Agricultural Big-Data Research Center, Shandong Agricultural University, Tai’an 271018, China; (Y.Z.); (Y.C.); (Z.L.); (H.W.); (L.Z.)
| | - Long Yang
- College of Plant Protection and Agricultural Big-Data Research Center, Shandong Agricultural University, Tai’an 271018, China; (Y.Z.); (Y.C.); (Z.L.); (H.W.); (L.Z.)
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Kim MH, Cho JS, Bae EK, Choi YI, Eom SH, Lim YJ, Lee H, Park EJ, Ko JH. PtrMYB120 functions as a positive regulator of both anthocyanin and lignin biosynthetic pathway in a hybrid poplar. TREE PHYSIOLOGY 2021; 41:2409-2423. [PMID: 34100089 DOI: 10.1093/treephys/tpab082] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 06/01/2021] [Indexed: 06/12/2023]
Abstract
Both anthocyanins and lignins are essential secondary metabolites in plant growth and development. Their biosynthesis is metabolically interconnected and diverges in the central metabolite 4-coumaroyl CoA of the phenylpropanoid pathway. Considerable progress has been made in understanding transcriptional regulation of genes involved in lignin and anthocyanin synthesis pathways, but the concerted regulation of these pathways is not yet fully understood. Here, we functionally characterized PtrMYB120, a R2R3-MYB transcription factor from Populus trichocarpa. Overexpression of PtrMYB120 in a hybrid poplar (i.e., 35S::PtrMYB120) was associated with increased anthocyanin (i.e., cyanidin 3-O-glucoside) accumulation and upregulation of anthocyanin biosynthetic genes. However, transgenic poplars with dominant suppression of PtrMYB120 function achieved by fusing the ERF-associated amphiphilic repression motif to PtrMYB120 (i.e., 35S::PtrMYB120-SRDX) had a dramatic decrease in not only anthocyanin but also Klason lignin content with downregulation of both anthocyanin and lignin biosynthetic genes. Indeed, 35S::PtrMYB120-SRDX poplars had irregularly shaped xylem vessels with reduced S-lignin content in stems, which was proportionally related to the level of the introduced PtrMYB120-SRDX gene. Furthermore, protoplast-based transcriptional activation assay using the PtrMYB120-GR system suggested that PtrMYB120 directly regulates genes involved in both anthocyanin and lignin biosynthesis, including chalcone synthase and ferulate-5 hydroxylase. Interestingly, the saccharification efficiency of line #6 of 35S::PtrMYB120-SRDX poplars, which had slightly reduced lignin content with a normal growth phenotype, was dramatically enhanced (>45%) by NaOH treatment. Taken together, our results suggest that PtrMYB120 functions as a positive regulator of both anthocyanin and lignin biosynthetic pathways and can be targeted to enhance saccharification efficiency in woody perennials.
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Affiliation(s)
- Min-Ha Kim
- Department of Plant & Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero, Yongin 17104, Republic of Korea
| | - Jin-Seong Cho
- Department of Plant & Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero, Yongin 17104, Republic of Korea
- Abio materials Co., Ltd., 7-44 Jamsil-gil, Cheonan 31005, Republic of Korea
| | - Eun-Kyung Bae
- Division of Forest Biotechnology, National Institute of Forest Science, 39 Onjeong-ro, Suwon 16631, Republic of Korea
| | - Young-Im Choi
- Division of Forest Biotechnology, National Institute of Forest Science, 39 Onjeong-ro, Suwon 16631, Republic of Korea
| | - Seok Hyun Eom
- Department of Horticultural Biotechnology, 1732 Deogyeong-daero, Yongin 17104, Republic of Korea
| | - You Jin Lim
- Department of Horticultural Biotechnology, 1732 Deogyeong-daero, Yongin 17104, Republic of Korea
| | - Hyoshin Lee
- Department of Horticultural Biotechnology, 1732 Deogyeong-daero, Yongin 17104, Republic of Korea
| | - Eung-Jun Park
- Division of Forest Biotechnology, National Institute of Forest Science, 39 Onjeong-ro, Suwon 16631, Republic of Korea
| | - Jae-Heung Ko
- Department of Plant & Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero, Yongin 17104, Republic of Korea
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Beyond Purple Tomatoes: Combined Strategies Targeting Anthocyanins to Generate Crimson, Magenta, and Indigo Fruit. HORTICULTURAE 2021. [DOI: 10.3390/horticulturae7090327] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The range of colours of many flowers and fruits is largely due to variations in the types of anthocyanins produced. The degree of hydroxylation on the B-ring affects the hue of these pigments, causing a shift from the orange end of the visible spectrum to the blue end. Besides colour, this modification can also affect other properties of anthocyanins, including the ability to protect the plant against different stresses or, when included in the human diet, to provide benefits for disease prevention. The level of hydroxylation of the B-ring is determined by the activity of two key hydroxylases, F3′H and F3′5′H, and by the substrate preference of DFR, an enzyme acting downstream in the biosynthetic pathway. We show that, in tomato, a strategy based on fruit-specific engineering of three regulatory genes (AmDel, AmRos1, AtMYB12) and a single biosynthetic gene (AmDFR), together with the availability of a specific mutation (f3′5′h), results in the generation of three different varieties producing high levels of anthocyanins with different levels of hydroxylation. These tomatoes show distinctive colours and mimic the classes of anthocyanins found in natural berries, thus providing unique near-isogenic material for different studies.
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Yang J, Zhang S, Li H, Wang L, Liu Y, Niu L, Yang Q, Meng D, Fu Y. Genome-wide analysis and characterization of R2R3-MYB family in pigeon pea (Cajanus cajan) and their functional identification in phenylpropanoids biosynthesis. PLANTA 2021; 254:64. [PMID: 34487243 DOI: 10.1007/s00425-021-03713-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 08/28/2021] [Indexed: 06/13/2023]
Abstract
Thirty CcMYB were identified to involve in flavonoid and lignin biosynthesis in pigeon pea genome. A comprehensive analysis of gene structure, phylogenetic relationships, distribution on chromosomes, gene duplication, and expression patterns was performed. MYB transcription factor is one of the largest gene families in plants and plays critical roles in plant growth and development, as well as resistance to biotic and abiotic stress. However, the function of MYB genes in pigeon pea (Cajanus cajan) remains largely unknown. Here, 30 R2R3-MYB which involved flavonoid and lignin biosynthesis were identified in the pigeon pea genome and were classified into five groups based on phylogenetic analysis. Simultaneously, another 122 key enzyme genes from biosynthetic pathways of flavonoid and lignin were identified and all of them were mapped on 11 chromosomes with the co-linearity relationship. Among these genes, the intron/exon organization and motif compositions were conserved and they have undergone a strong purifying selection and tandem duplications during evolution. Expression profile analysis demonstrated most of these genes were expressed in different tissues and responded significantly to MeJA, RNA-seq analysis revealed clear details of genes varied with time of induction. Ten key genes from the phenylpropanoid pathway were selected to further verify whether they responded to induction under different abiotic stress conditions (UV-B, cold, heat, salt, drought, and GA3). This study elaborates on potential regulatory relationships between R2R3-MYB genes and some key genes involved in flavonoid and lignin biosynthesis under MeJA treatment, as well as adding to the understanding of improving abiotic stress tolerance and regulating the secondary metabolism in woody crops. A simplified discussion model for the different regulation networks involved with flavonoid and lignin biosynthesis in pigeon pea is proposed.
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Affiliation(s)
- Jie Yang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China
| | - Su Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083, China
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
| | - Hongquan Li
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China
| | - Litao Wang
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
| | - Ying Liu
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China
| | - Lili Niu
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
| | - Qing Yang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083, China
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
| | - Dong Meng
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083, China
- College of Forestry, Beijing Forestry University, Beijing, 100083, China
| | - Yujie Fu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China.
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083, China.
- College of Forestry, Beijing Forestry University, Beijing, 100083, China.
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Liu Q, Li L, Cheng H, Yao L, Wu J, Huang H, Ning W, Kai G. The basic helix-loop-helix transcription factor TabHLH1 increases chlorogenic acid and luteolin biosynthesis in Taraxacum antungense Kitag. HORTICULTURE RESEARCH 2021; 8:195. [PMID: 34465735 PMCID: PMC8408231 DOI: 10.1038/s41438-021-00630-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 04/30/2021] [Accepted: 06/07/2021] [Indexed: 05/13/2023]
Abstract
Polyphenols are the main active components of the anti-inflammatory compounds in dandelion, and chlorogenic acid (CGA) is one of the primary polyphenols. However, the molecular mechanism underlying the transcriptional regulation of CGA biosynthesis remains unclear. Hydroxycinnamoyl-CoA:quinate hydroxycinnamoyl transferase (HQT2) is the last rate-limiting enzyme in chlorogenic acid biosynthesis in Taraxacum antungense. Therefore, using the TaHQT2 gene promoter as a probe, a yeast one-hybrid library was performed, and a basic helix-loop-helix (bHLH) transcription factor, TabHLH1, was identified that shared substantial homology with Gynura bicolor DC bHLH1. The TabHLH1 transcript was highly induced by salt stress, and the TabHLH1 protein was localized in the nucleus. CGA and luteolin concentrations in TabHLH1-overexpression transgenic lines were significantly higher than those in the wild type, while CGA and luteolin concentrations in TabHLH1-RNA interference (RNAi) transgenic lines were significantly lower. Quantitative real-time polymerase chain reaction demonstrated that overexpression and RNAi of TabHLH1 in T. antungense significantly affected CGA and luteolin concentrations by upregulating or downregulating CGA and luteolin biosynthesis pathway genes, especially TaHQT2, 4-coumarate-CoA ligase (Ta4CL), chalcone isomerase (TaCHI), and flavonoid-3'-hydroxylase (TaF3'H). Dual-luciferase, yeast one-hybrid, and electrophoretic mobility shift assays indicated that TabHLH1 directly bound to the bHLH-binding motifs of proTaHQT2 and proTa4CL. This study suggests that TabHLH1 participates in the regulatory network of CGA and luteolin biosynthesis in T. antungense and might be useful for metabolic engineering to promote plant polyphenol biosynthesis.
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Affiliation(s)
- Qun Liu
- Laboratory for Core Technology of TCM Quality Improvement and Transformation, College of Pharmacy, School of Pharmaceutical Sciences, The Third Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem.Sun Yat-Sen), Nanjing, 210014, China
| | - Li Li
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Haitao Cheng
- College of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Lixiang Yao
- Guangxi Botanical Garden of Medicinal Plants, Nanning, 530023, PR China
| | - Jie Wu
- College of Life Sciences and Engineering, Shenyang University, Shenyang, 110044, PR China
| | - Hui Huang
- Laboratory for Core Technology of TCM Quality Improvement and Transformation, College of Pharmacy, School of Pharmaceutical Sciences, The Third Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China
| | - Wei Ning
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Guoyin Kai
- Laboratory for Core Technology of TCM Quality Improvement and Transformation, College of Pharmacy, School of Pharmaceutical Sciences, The Third Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, PR China.
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Tang N, Cao Z, Yang C, Ran D, Wu P, Gao H, He N, Liu G, Chen Z. A R2R3-MYB transcriptional activator LmMYB15 regulates chlorogenic acid biosynthesis and phenylpropanoid metabolism in Lonicera macranthoides. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 308:110924. [PMID: 34034872 DOI: 10.1016/j.plantsci.2021.110924] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 04/09/2021] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
Lonicera macranthoides Hand-Mazz is an important medicinal plant widely distributed in southern China that has long been used in Chinese traditional medicines. Chlorogenic acid (CGA, 3-caffeoylquinic acid) is the major biologically active ingredient in L. macranthoides. Although key CGA biosynthetic genes have been well documented, their transcriptional regulation remains largely unknown. In this study, we observed that a R2R3 MYB transcription factor LmMYB15 showed a significant correlation with CGA content, indicating its potential role in CGA biosynthesis. A yeast two-hybrid assay suggested that LmMYB15 functions as a transcriptional activator. Overexpression of LmMYB15 in tobacco led to increased accumulation of CGA compared to those in wild-type leaves. To elucidate its functional mechanism, genome-wide DAP-seq was employed and identified the conserved binding motifs of LmMYB15, that is [(C/T) (C/T) (C/T) ACCTA(C/A) (C/T) (A/T)], as well as its direct downstream target genes, including 4CL, MYB3, MYB4, KNAT6/7, IAA26, and ETR2. Subsequently, yeast one-hybrid and dual-luciferase reporter assays verified that LmMYB15 could bind and activate the promoters of 4CL, MYB3 and MYB4, thereby facilitating CGA biosynthesis and phenylpropanoid metabolism. Our findings provide a new track for breeding strategies aiming to enhance CGA content in L. macranthoides that can significantly contribute to better mechanical properties.
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Affiliation(s)
- Ning Tang
- College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China; Chongqing Key Laboratory of Economic Plant Biotechnology, Chongqing, 400000, China; Collaborative Innovation Center of Special Plant Industry in Chongqing, Chongqing, 400000, China.
| | - Zhengyan Cao
- College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China; College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China.
| | - Cheng Yang
- College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China.
| | - Dongsheng Ran
- College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China.
| | - Peiyin Wu
- College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China; College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China.
| | - Hongmei Gao
- College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China.
| | - Na He
- College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China.
| | - Guohua Liu
- College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China.
| | - Zexiong Chen
- College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China; Chongqing Key Laboratory of Economic Plant Biotechnology, Chongqing, 400000, China; Collaborative Innovation Center of Special Plant Industry in Chongqing, Chongqing, 400000, China.
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48
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Wang Z, Luo Z, Liu Y, Li Z, Liu P, Bai G, Zhou Z, Xie H, Yang J. Molecular cloning and functional characterization of NtWRKY11b in promoting the biosynthesis of flavonols in Nicotiana tabacum. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 304:110799. [PMID: 33568298 DOI: 10.1016/j.plantsci.2020.110799] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/07/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
The biosynthesis of flavonols and anthocyanins is precisely regulated by different transcription factors in plants. WRKY11 promotes the biosynthesis of flavonoids in apple, but the molecular mechanism of WRKY11 regulating flavonols biosynthesis, and whether WRKY11 plays the same roles in other plants species remains to be further studied. Here, we cloned four NtWRKY11 genes from tobacco, which all contained the conserved WRKYGQK heptapeptide and a zinc-finger motif. The NtWRKY11b showed higher expression levels than the other NtWRKY11 genes in all the tobacco tissues examined, especially in tobacco leaves. Silencing of NtWRKY11b in tobacco leaves reduced the content of flavonols to 45.2 %-69.8 % of that in the WT plants, but overexpression of NtWRKY11b increased the flavonols content by 37.8 %-80.7 %. Transcriptome analysis revealed 8 flavonoids related differentially expressed genes (DEGs) between NtWRKY11b-OE and WT plants, among which the transcription of NtMYB12, NtFLS, NtGT5, and NtUFGT was significantly induced by posttranslational activation of NtWRKY11b with the presence of protein synthesis inhibitor, indicating a putative direct promotion of NtWRKY11b on the transcription of these flavonoids related genes. Chromatin immunoprecipitation assays further demonstrated that NtWRKY11b could bind to the promoter regions of NtMYB12, NtFLS, NtGT5, and NtUFGT to activate the transcription of these genes. Moreover, ectopic expression of NtWRKY11b also promoted the expression levels of NtCML38, NtCTL1, NtWRKY44, and NtCML37 genes, which have been shown to enhance plant resistance to various stresses. Our findings revealed the molecular mechanism of NtWRKY11b regulating flavonols biosynthesis, and provided a promising target for increasing flavonols content in tobacco.
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Affiliation(s)
- Zhong Wang
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, China
| | - Zhaopeng Luo
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, China
| | - Yongjun Liu
- Hunan Tobacco Research Institute, Changsha, 410004, China
| | - Zefeng Li
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, China
| | - Pingping Liu
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, China
| | - Ge Bai
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China
| | - Zhicheng Zhou
- Hunan Tobacco Research Institute, Changsha, 410004, China
| | - He Xie
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
| | - Jun Yang
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, China.
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Wang Z, Li ZF, Wang SS, Xiao YS, Xie XD, Wu MZ, Yu JL, Cheng LR, Yang AG, Yang J. NtMYB12a acts downstream of sucrose to inhibit fatty acid accumulation by targeting lipoxygenase and SFAR genes in tobacco. PLANT, CELL & ENVIRONMENT 2021; 44:775-791. [PMID: 33225450 DOI: 10.1111/pce.13957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 11/14/2020] [Accepted: 11/16/2020] [Indexed: 06/11/2023]
Abstract
MYB12 promotes flavonol biosynthesis in plants by targeting several early biosynthesis genes (EBGs) of this pathway. The transcriptions of these EBGs are also induced by sucrose signal. However, whether MYB12 is activated by sucrose signal and what the other roles MYB12 has in regulating plant metabolism are poorly understood. In this study, two NtMYB12 genes were cloned from Nicotiana tabacum. Both NtMYB12a and NtMYB12b are involved in regulating flavonoids biosynthesis in tobacco. NtMYB12a is further shown to inhibit the accumulation of fatty acid (FA) in tobacco leaves and seeds. Post-translational activation and chromatin immunoprecipitation assays demonstrate that NtMYB12a directly promotes the transcriptions of NtLOX6, NtLOX5, NtSFAR4 and NtGDSL2, which encode lipoxygenase (LOX) or SFAR enzymes catalyzing the degradation of FA. NtLOX6 and NtLOX5 are shown to prevent the accumulation of FA in the mature seeds and significantly reduced the percentage of polyunsaturated fatty acids (PUFAs) in tobacco. Sucrose stimulates the transcription of NtMYB12a, and loss function of NtMYB12a partially suppresses the decrease of FA content in tobacco seedlings caused by sucrose treatment. The regulation of sucrose on the expression of NtLOX6 and NtGDSL2 genes is mediated by NtMYB12a, whereas those of NtLOX5 and NtSFAR4 genes are independent of sucrose.
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Affiliation(s)
- Zhong Wang
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Ze Feng Li
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Shan Shan Wang
- Xiangyang Cigarette Factory, China Tobacco Hubei Industrial Co., Ltd., Xiangyang, China
| | - Yan Song Xiao
- Chenzhou Tobacco Company of Hunan Province, Chenzhou, China
| | - Xiao Dong Xie
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Ming Zhu Wu
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Jin Long Yu
- Chenzhou Tobacco Company of Hunan Province, Chenzhou, China
| | - Li Rui Cheng
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Ai Guo Yang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Jun Yang
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
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50
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Wang J, Li G, Li C, Zhang C, Cui L, Ai G, Wang X, Zheng F, Zhang D, Larkin RM, Ye Z, Zhang J. NF-Y plays essential roles in flavonoid biosynthesis by modulating histone modifications in tomato. THE NEW PHYTOLOGIST 2021; 229:3237-3252. [PMID: 33247457 DOI: 10.1111/nph.17112] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
NF-Y transcription factors are reported to play diverse roles in a wide range of biological processes in plants. However, only a few active NF-Y complexes are known in plants and the precise functions of NF-Y complexes in flavonoid biosynthesis have not been determined. Using various molecular, genetic and biochemical approaches, we found that NF-YB8a, NF-YB8b and NF-YB8c - a NF-YB subgroup - can interact with a specific subgroup of NF-YC and then recruit either of two distinct NF-YAs to form NF-Y complexes that bind the CCAAT element in the CHS1 promoter. Furthermore, suppressing the expression of particular NF-YB genes increased the levels of H3K27me3 at the CHS1 locus and significantly suppressed the expression of CHS1 during tomato fruit ripening, which led to the development of pink-coloured fruit with colourless peels. Altogether, by demonstrating that NF-Y transcription factors play essential roles in flavonoid biosynthesis and by providing significant molecular insight into the regulatory mechanisms that drive the development of pink-coloured tomato fruit, we provide a major advance to our fundamental knowledge and information that has considerable practical value for horticulture.
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Affiliation(s)
- Jiafa Wang
- The Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Guobin Li
- The Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Changxing Li
- The Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chunli Zhang
- The Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Long Cui
- The Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Guo Ai
- The Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xin Wang
- The Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Fangyan Zheng
- The Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Dedi Zhang
- The Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Robert M Larkin
- The Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhibiao Ye
- The Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Junhong Zhang
- The Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
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