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Muthuramalingam P, Muthamil S, Shilpha J, Venkatramanan V, Priya A, Kim J, Shin Y, Chen JT, Baskar V, Park K, Shin H. Molecular Insights into Abiotic Stresses in Mango. PLANTS (BASEL, SWITZERLAND) 2023; 12:1939. [PMID: 37653856 PMCID: PMC10224100 DOI: 10.3390/plants12101939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/19/2023] [Accepted: 05/08/2023] [Indexed: 09/02/2023]
Abstract
Mango (Mangifera indica L.) is one of the most economically important fruit crops across the world, mainly in the tropics and subtropics of Asia, Africa, and Central and South America. Abiotic stresses are the prominent hindrance that can adversely affect the growth, development, and significant yield loss of mango trees. Understanding the molecular physiological mechanisms underlying abiotic stress responses in mango is highly intricate. Therefore, to gain insights into the molecular basis and to alleviate the abiotic stress responses to enhance the yield in the mere future, the use of high-throughput frontier approaches should be tied along with the baseline investigations. Taking these gaps into account, this comprehensive review mainly speculates to provide detailed mechanisms and impacts on physiological and biochemical alterations in mango under abiotic stress responses. In addition, the review emphasizes the promising omics approaches in unraveling the candidate genes and transcription factors (TFs) responsible for abiotic stresses. Furthermore, this review also summarizes the role of different types of biostimulants in improving the abiotic stress responses in mango. These studies can be undertaken to recognize the roadblocks and avenues for enhancing abiotic stress tolerance in mango cultivars. Potential investigations pointed out the implementation of powerful and essential tools to uncover novel insights and approaches to integrate the existing literature and advancements to decipher the abiotic stress mechanisms in mango. Furthermore, this review serves as a notable pioneer for researchers working on mango stress physiology using integrative approaches.
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Affiliation(s)
- Pandiyan Muthuramalingam
- Division of Horticultural Science, Gyeongsang National University, Jinju 52725, Republic of Korea; (P.M.); (J.S.)
- Department of GreenBio Science, Gyeongsang National University, Jinju 52725, Republic of Korea; (J.K.); (Y.S.)
| | - Subramanian Muthamil
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju 58245, Republic of Korea;
| | - Jayabalan Shilpha
- Division of Horticultural Science, Gyeongsang National University, Jinju 52725, Republic of Korea; (P.M.); (J.S.)
| | | | - Arumugam Priya
- Department of Biological Sciences, North Carolina State University, Raleigh, NC 27606, USA;
| | - Jinwook Kim
- Department of GreenBio Science, Gyeongsang National University, Jinju 52725, Republic of Korea; (J.K.); (Y.S.)
| | - Yunji Shin
- Department of GreenBio Science, Gyeongsang National University, Jinju 52725, Republic of Korea; (J.K.); (Y.S.)
| | - Jen-Tsung Chen
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung 811, Taiwan
| | - Venkidasamy Baskar
- Department of Oral and Maxillofacial Surgery, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha Dental College and Hospitals, Saveetha University, Chennai 600077, India;
| | - Kyoungmi Park
- Department of Horticulture Research, Gyeongsangnam-do Agricultural Research and Extension Services, Jinju 52733, Republic of Korea;
| | - Hyunsuk Shin
- Division of Horticultural Science, Gyeongsang National University, Jinju 52725, Republic of Korea; (P.M.); (J.S.)
- Department of GreenBio Science, Gyeongsang National University, Jinju 52725, Republic of Korea; (J.K.); (Y.S.)
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Khedr EH, Al-Khayri JM. Synergistic Effects of Tragacanth and Anti-ethylene Treatments on Postharvest Quality Maintenance of Mango ( Mangifera indica L.). PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091887. [PMID: 37176945 PMCID: PMC10180912 DOI: 10.3390/plants12091887] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 04/24/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023]
Abstract
Mango (Mangifera indica L.) is one of the most popular tropical fruits grown in Egypt and several other countries, making it a potential export commodity. Excessive deterioration after harvest requires various treatments to maintain fruit quality. We evaluated the treatments effects of melatonin (MT) as an anti-ethylene agent and tragacanth gum (TRG) as an edible coating individually and together (MT-TRG) before storing mangoes at 12 °C for 32 days under 85-90% relative humidity. Compared with control, all treatments were significantly effective in preserving fruit quality. Fruits treated with MT-TRG showed significantly lower decay values, respiration rates, ethylene production, and weight loss than untreated fruits. MT-TRG treatment significantly enhanced fruit quality, thereby maintaining fruit appearance, flesh color, firmness, total soluble solids and phenolic contents, and pectin methyl esterase, polyphenol oxidase, and peroxidase activities during the storage period. We propose 200 µM MT + 1% TRG as a safe postharvest treatment to reduce the deterioration of mangoes and maintain fruit quality.
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Affiliation(s)
- Emad Hamdy Khedr
- Department of Pomology, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Jameel Mohammed Al-Khayri
- Department of Agricultural Biotechnology, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa 31982, Saudi Arabia
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Li L, Yi P, Sun J, Tang J, Liu G, Bi J, Teng J, Hu M, Yuan F, He X, Sheng J, Xin M, Li Z, Li C, Tang Y, Ling D. Genome-wide transcriptome analysis uncovers gene networks regulating fruit quality and volatile compounds in mango cultivar 'Tainong' during postharvest. Food Res Int 2023; 165:112531. [PMID: 36869530 DOI: 10.1016/j.foodres.2023.112531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 01/11/2023] [Accepted: 01/21/2023] [Indexed: 01/26/2023]
Abstract
Mango is one of the most economically important fruit; however, the gene regulatory mechanism associated with ripening and quality changes during storage remains largely unclear. This study explored the relationship between transcriptome changes and postharvest mango quality. Fruit quality patterns and volatile components were obtained using headspace gas chromatography and ion-mobility spectrometry (HS-GC-IMS). The changes in mango peel and pulp transcriptome were analyzed during four stages (pre-harvesting, harvesting, maturity, and overripe stages). Based on the temporal analysis, multiple genes involved in the biosynthesis of secondary metabolites were upregulated in both the peel and pulp during the mango ripening process. Moreover, cysteine and methionine metabolism related to ethylene synthesis were upregulated in the pulp over time. Weighted gene co-expression network analysis (WGCNA) further showed that the pathways of pyruvate metabolism, citrate cycle, propionate metabolism, autophagy, and SNARE interactions in vesicular transport were positively correlated with the ripening process. Finally, a regulatory network of important pathways from pulp to peel was constructed during the postharvest storage of mango fruit. The above findings provide a global insight into the molecular regulation mechanisms of postharvest mango quality and flavor changes.
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Affiliation(s)
- Li Li
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China; Guangxi University, 530004 Nanning, China
| | - Ping Yi
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China; Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, 100193 Beijing, China
| | - Jian Sun
- Guangxi Key Laboratory of Fruits and Vegetables Storage-processing Technology, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China; Guangxi Academy of Agricultural Sciences, 530007 Nanning, China.
| | - Jie Tang
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China
| | - Guoming Liu
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China
| | - Jinfeng Bi
- Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, 100193 Beijing, China
| | | | - Meijiao Hu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, 571101, Haikou, China
| | - Fang Yuan
- Guangxi Key Laboratory of Fruits and Vegetables Storage-processing Technology, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China
| | - Xuemei He
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China
| | - Jinfeng Sheng
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China
| | - Ming Xin
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China
| | - Zhichun Li
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China
| | - Changbao Li
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China
| | - Yayuan Tang
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China
| | - Dongning Ling
- Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 530007 Nanning, China
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Datir S, Regan S. Advances in Physiological, Transcriptomic, Proteomic, Metabolomic, and Molecular Genetic Approaches for Enhancing Mango Fruit Quality. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:20-34. [PMID: 36573879 DOI: 10.1021/acs.jafc.2c05958] [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] [Indexed: 06/17/2023]
Abstract
Mango (Mangifera indica L.) is a nutritionally important fruit of high nutritive value, delicious in taste with an attractive aroma. Due to their antioxidant and therapeutic potential, mango fruits are receiving special attention in biochemical and pharmacognosy-based studies. Fruit quality determines consumer's acceptance, and hence, understanding the physiological, biochemical, and molecular basis of fruit development, maturity, ripening, and storage is essential. Transcriptomic, metabolomic, proteomic, and molecular genetic approaches have led to the identification of key genes, metabolites, protein candidates, and quantitative trait loci that are associated with enhanced mango fruit quality. The major pathways that determine the fruit quality include amino acid metabolism, plant hormone signaling, carbohydrate metabolism and transport, cell wall biosynthesis and degradation, flavonoid and anthocyanin biosynthesis, and carotenoid metabolism. Expression of the polygalacturonase, cutin synthase, pectin methyl esterase, pectate lyase, β-galactosidase, and ethylene biosynthesis enzymes are related to mango fruit ripening, flavor, firmness, softening, and other quality processes, while genes involved in the MAPK signaling pathway, heat shock proteins, hormone signaling, and phenylpropanoid biosynthesis are associated with diseases. Metabolomics identified volatiles, organic acids, amino acids, and various other compounds that determine the characteristic flavor and aroma of the mango fruit. Molecular markers differentiate the mango cultivars based on their geographical origins. Genetic linkage maps and quantitative trait loci studies identified regions in the genome that are associated with economically important traits. The review summarizes the applications of omics techniques and their potential applications toward understanding mango fruit physiology and their usefulness in future mango breeding.
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Affiliation(s)
- Sagar Datir
- Biology Department, Queen's University, Kingston, Ontario, CanadaK7L 3N6
- The Naoroji Godrej Centre for Plant Research, Shindewadi, Shirwal, Maharashtra - 412801 India
| | - Sharon Regan
- Biology Department, Queen's University, Kingston, Ontario, CanadaK7L 3N6
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Quintana SE, Salas S, García-Zapateiro LA. Bioactive compounds of mango (Mangifera indica): a review of extraction technologies and chemical constituents. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:6186-6192. [PMID: 34324201 DOI: 10.1002/jsfa.11455] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 06/27/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Mango (Mangifera indica) has been recognized as a rich source of bioactive compounds with potential pharmaceutical and nutraceutical applications and has attracted increasing interest from research. Phytochemistry studies have demonstrated that phenolic compounds are one of the most important biologically active components of M. indica extracts. Ultrasound- and microwave-assisted extractions and supercritical fluids have been employed to obtain bioactive molecules, such as phenolic acids, terpenoids, carotenoids, and fatty acids. These phytochemicals exhibit antioxidant, antimicrobial, anti-inflammatory, and anticancer activity, and depending on the source (bark, leaves, seeds, flowers, or peel) and extraction method there will be differences in the structure and bioactivity. This review examines the bioactive compounds, extraction techniques, and biological function of different parts of M. indica of great importance as nutraceuticals and functional compounds with potential application as therapeutic agents and functional foods. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Somaris E Quintana
- Research Group of Complex Fluid Engineering and Food Rheology, University of Cartagena, Cartagena, Colombia
| | - Stephanie Salas
- Research Group of Complex Fluid Engineering and Food Rheology, University of Cartagena, Cartagena, Colombia
| | - Luis A García-Zapateiro
- Research Group of Complex Fluid Engineering and Food Rheology, University of Cartagena, Cartagena, Colombia
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Mathiazhagan M, Chidambara B, Hunashikatti LR, Ravishankar KV. Genomic Approaches for Improvement of Tropical Fruits: Fruit Quality, Shelf Life and Nutrient Content. Genes (Basel) 2021; 12:1881. [PMID: 34946829 PMCID: PMC8701245 DOI: 10.3390/genes12121881] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/23/2021] [Accepted: 11/16/2021] [Indexed: 12/17/2022] Open
Abstract
The breeding of tropical fruit trees for improving fruit traits is complicated, due to the long juvenile phase, generation cycle, parthenocarpy, polyploidy, polyembryony, heterozygosity and biotic and abiotic factors, as well as a lack of good genomic resources. Many molecular techniques have recently evolved to assist and hasten conventional breeding efforts. Molecular markers linked to fruit development and fruit quality traits such as fruit shape, size, texture, aroma, peel and pulp colour were identified in tropical fruit crops, facilitating Marker-assisted breeding (MAB). An increase in the availability of genome sequences of tropical fruits further aided in the discovery of SNP variants/Indels, QTLs and genes that can ascertain the genetic determinants of fruit characters. Through multi-omics approaches such as genomics, transcriptomics, metabolomics and proteomics, the identification and quantification of transcripts, including non-coding RNAs, involved in sugar metabolism, fruit development and ripening, shelf life, and the biotic and abiotic stress that impacts fruit quality were made possible. Utilizing genomic assisted breeding methods such as genome wide association (GWAS), genomic selection (GS) and genetic modifications using CRISPR/Cas9 and transgenics has paved the way to studying gene function and developing cultivars with desirable fruit traits by overcoming long breeding cycles. Such comprehensive multi-omics approaches related to fruit characters in tropical fruits and their applications in breeding strategies and crop improvement are reviewed, discussed and presented here.
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Affiliation(s)
| | | | | | - Kundapura V. Ravishankar
- Division of Basic Sciences, ICAR Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Bengaluru 560089, India; (M.M.); (B.C.); (L.R.H.)
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Angamuthu S, R. Ramaswamy C, Thangaswamy S, Sadhasivam DR, Nallaswamy VD, Subramanian R, Ganesan R, Raju A. Metabolic annotation, interactions and characterization of natural products of mango (Mangifera indica L.): 1H NMR based chemical metabolomics profiling. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.05.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Wang H, Wang S, Fan MM, Zhang SH, Sun LL, Zhao ZY. Metabolomic insights into the browning of the peel of bagging 'Rui Xue' apple fruit. BMC PLANT BIOLOGY 2021; 21:209. [PMID: 33964877 PMCID: PMC8106160 DOI: 10.1186/s12870-021-02974-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 04/14/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Bagging is one of the most important techniques for producting high-quality fruits. In the actual of cultivating, we found a new kind of browning in peel of apple fruit that occurs before harvest and worsen during storage period. There are many studies on metabonomic analysis of browning about storage fruits, but few studies on the mechanism of browning before harvest. RESULTS In this study, five-year-old trees of 'Rui Xue' (CNA20151469.1) were used as materials. Bagging fruits without browning (BFW) and bagging fruits with browning (BFB) were set as the experimental groups, non-bagging fruits (NBF) were set as control. After partial least squares discriminant analysis (PLS-DA), 50 kinds of metabolites were important with predictive VIP > 1 and p-value < 0.05. The most important differential metabolites include flavonoids and lipids molecules, 11 flavonoids and 6 lipids molecules were significantly decreased in the BFW compared with NBF. After browning, 11 flavonoids and 7 lipids were further decreased in BFB compared with BFW. Meanwhile, the significantly enriched metabolic pathways include galactose metabolism, ABC membrane transporter protein, flavonoid biosynthesis and linoleic acid metabolism pathways et al. Physiological indicators show that, compared with NBF, the content of malondialdehyde (MDA), hydrogen peroxide (H2O2), superoxide anion (O2-) in peel of BFW and BFB were significantly increased, and the difference of BFB was more significant. Meanwhile, the antioxidant enzyme activities of BFW and BFB were inhibited, which accelerated the destruction of cell structure. In addition, the metabolome and physiological data showed that the significantly decrease of flavonoid was positively correlated with peel browning. So, we analyzed the expression of flavonoid related genes and found that, compared with NBF, the flavonoid synthesis genes MdLAR and MdANR were significantly up-regulated in BFW and BFB, but, the downstream flavonoids-related polymeric genes MdLAC7 and MdLAC14 were also significantly expressed. CONCLUSIONS Our findings demonstrated that the microenvironment of fruit was changed by bagging, the destruction of cell structure, the decrease of flavonoids and the increase of triterpenoids were the main reasons for the browning of peel.
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Affiliation(s)
- Hui Wang
- College of Horticulture, Northwest A & F University, Yangling, Xianyang, 712100, Shaanxi, China
| | - Shuang Wang
- College of Horticulture, Northwest A & F University, Yangling, Xianyang, 712100, Shaanxi, China
| | - Miao-Miao Fan
- College of Horticulture, Northwest A & F University, Yangling, Xianyang, 712100, Shaanxi, China
| | - Shu-Hui Zhang
- College of Horticultural Science and Engineering, Shandong Agricultural University / State Key Laboratory of Crop Biology, Taian, 271018, Shandong, China
| | - Lu-Long Sun
- College of Horticulture, Northwest A & F University, Yangling, Xianyang, 712100, Shaanxi, China.
| | - Zheng-Yang Zhao
- College of Horticulture, Northwest A & F University, Yangling, Xianyang, 712100, Shaanxi, China.
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Patiño-Rodríguez O, Bello-Pérez LA, Agama-Acevedo E, Pacheco-Vargas G. Pulp and peel of unripe stenospermocarpic mango (Mangifera indica L. cv Ataulfo) as an alternative source of starch, polyphenols and dietary fibre. Food Res Int 2020; 138:109719. [PMID: 33292964 DOI: 10.1016/j.foodres.2020.109719] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 09/03/2020] [Accepted: 09/09/2020] [Indexed: 02/07/2023]
Abstract
As a result of climate change, the production of stenospermocarpic mangoes has increased dramatically. The stenospermocarpic mango, a fruit with reduced size and no seed, is considered to be a by-product that is both underutilised and wasted. Here, we studied the colour, chemical composition, polyphenol content, antioxidant capacity and starch in vitro digestibility of unripe stenospermocarpic mango flours (pulp and peel). The stenospermocarpic mango pulp flour had 11.7 g/100 g of dietary fibre with a balance of soluble and insoluble fractions; additionally, the total starch content of 41 g/100 g in its uncooked flour (resistant starch) can contribute to an increase in the indigestible carbohydrates. The mango peel flour had higher dietary fibre (40.5 g/100 g) and lower total starch content (21 g/100 g) compared with mango pulp flour. The mango pulp flour had higher phenolic compounds content (99.71 mg/g) and antioxidant capacity (248.5 mg/g, DPPH) compared with the peel flour (16.51 mg/g and 92.08 mg/g, DPPH), respectively. The rapidly digestible starch fraction was approximately 50%, with a balance in the content of slowly and resistant starch fractions in the mango pulp flour (approximately 20% per fraction). The flours of the pulp and peel of unripe stenospermocarpic mangoes can be used as alternative ingredients for preparing functional foods with high dietary fibre content and polyphenol compounds with antioxidant capacities.
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Affiliation(s)
- Omar Patiño-Rodríguez
- CONACyT-Instituto Politécnico Nacional, CEPROBI, Km. 6.5 Carr. Yautepec-Jojutla Col. San Isidro, Calle CEPROBI No. 8, Yautepec, Morelos, Mexico.
| | - Luis A Bello-Pérez
- Instituto Politécnico Nacional, CEPROBI, Km. 6.5 Carr. Yautepec-Jojutla Col. San Isidro, Calle CEPROBI No. 8, Yautepec, Morelos, Mexico
| | - Edith Agama-Acevedo
- Instituto Politécnico Nacional, CEPROBI, Km. 6.5 Carr. Yautepec-Jojutla Col. San Isidro, Calle CEPROBI No. 8, Yautepec, Morelos, Mexico
| | - Glenda Pacheco-Vargas
- Instituto Politécnico Nacional, CEPROBI, Km. 6.5 Carr. Yautepec-Jojutla Col. San Isidro, Calle CEPROBI No. 8, Yautepec, Morelos, Mexico
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Calumpang CLF, Saigo T, Watanabe M, Tohge T. Cross-Species Comparison of Fruit-Metabolomics to Elucidate Metabolic Regulation of Fruit Polyphenolics Among Solanaceous Crops. Metabolites 2020; 10:E209. [PMID: 32438728 PMCID: PMC7281770 DOI: 10.3390/metabo10050209] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/03/2020] [Accepted: 05/14/2020] [Indexed: 11/24/2022] Open
Abstract
Many solanaceous crops are an important part of the human daily diet. Fruit polyphenolics are plant specialized metabolites that are recognized for their human health benefits and their defensive role against plant abiotic and biotic stressors. Flavonoids and chlorogenates are the major polyphenolic compounds found in solanaceous fruits that vary in quantity, physiological function, and structural diversity among and within plant species. Despite their biological significance, the elucidation of metabolic shifts of polyphenols during fruit ripening in different fruit tissues, has not yet been well-characterized in solanaceous crops, especially at a cross-species and cross-cultivar level. Here, we performed a cross-species comparison of fruit-metabolomics to elucidate the metabolic regulation of fruit polyphenolics from three representative crops of Solanaceae (tomato, eggplant, and pepper), and a cross-cultivar comparison among different pepper cultivars (Capsicum annuum cv.) using liquid chromatography-mass spectrometry (LC-MS). We observed a metabolic trade-off between hydroxycinnamates and flavonoids in pungent pepper and anthocyanin-type pepper cultivars and identified metabolic signatures of fruit polyphenolics in each species from each different tissue-type and fruit ripening stage. Our results provide additional information for metabolomics-assisted crop improvement of solanaceous fruits towards their improved nutritive properties and enhanced stress tolerance.
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Affiliation(s)
| | | | | | - Takayuki Tohge
- Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), Ikoma, Nara 630-0192, Japan; (C.L.F.C.); (T.S.); (M.W.)
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