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Wang Y, Yu D, Zhu S, Du X, Wang X. The genus Dioscorea L. (Dioscoreaceae), a review of traditional uses, phytochemistry, pharmacology, and toxicity. JOURNAL OF ETHNOPHARMACOLOGY 2024; 329:118069. [PMID: 38552992 DOI: 10.1016/j.jep.2024.118069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/29/2024] [Accepted: 03/16/2024] [Indexed: 04/11/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The genus Dioscorea, a member of the Dioscoreaceae family, comprises approximately 600 species and is widely distributed across temperate and tropical regions such as Asia, South Africa, and North America. The traditional medicinal uses of Dioscorea have been documented in Asian and African pharmacological systems. In Asia, this genus is traditionally used to treat respiratory illnesses, rheumatism, diabetes, diarrhea, dysentery, and other conditions. In Africa, this genus has been used to treat human immunodeficiency virus and ring worms. However, the traditional medicinal practices in North America rarely mention the use of this genus. AIM OF THE STUDY The aim of this review is to comprehensively review the genus Dioscorea, focusing on its traditional uses, phytochemical constituents, pharmacological activities, and potential toxicities. The research also aims to highlight the valuable bioactive compounds within Dioscorea and emphasize the need for further investigations into acute and chronic toxicity, activity mechanisms, molecular markers, and other relevant factors to contribute to the discovery of novel pharmaceuticals. MATERIALS AND METHODS A search for available information on Dioscorea was conducted using scientific databases, including PubMed, ISI-WOS, Scopus, and Google Scholar, as well as recent academic publications from reputable publishers and other literature sources. The search was not limited by language and spanned the literature published between 1950 and 2022. RESULTS This article provides a comprehensive review of the Dioscorea genus, focusing on its traditional uses, phytochemical constituents, pharmacological activities, and potential toxicities. Extensive research has been conducted on this genus, resulting in the isolation and examination of over 1000 compounds, including steroids, terpenoids, and flavonoids, to determine their biological activities. These activities include anti-tumor, anti-inflammatory, immunomodulatory, neuroprotective, hypoglycemic, and hypolipidemic effects. However, some studies have indicated the potential toxicity of high doses of Dioscorea, highlighting the need for further investigations to assess the safety of this genus. Additionally, this review explores potential avenues for future research and discusses the challenges associated with a comprehensive understanding of the Dioscorea genus. CONCLUSIONS Based on the existing literature, it can be concluded that Dioscorea is a valuable source of bioactive compounds that have the potential to treat various disorders. Future research should prioritize the investigation of acute and chronic toxicity, activity mechanisms, molecular markers, and other relevant factors. This review provides a comprehensive analysis of the Dioscorea genus, emphasizing its potential to enable a deeper exploration of the biological activity mechanisms of these plants and contribute to the discovery of novel pharmaceuticals.
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Affiliation(s)
- Yufei Wang
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China
| | - Dan Yu
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China
| | - Shaojie Zhu
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China
| | - Xiaowei Du
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China.
| | - Xijun Wang
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China.
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Drapal M, Amah D, Uwimana B, Brown A, Swennen R, Fraser PD. Evidence for metabolite composition underlying consumer preference in Sub-Saharan African Musa spp. Food Chem 2024; 435:137481. [PMID: 37774620 DOI: 10.1016/j.foodchem.2023.137481] [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: 05/16/2023] [Revised: 07/21/2023] [Accepted: 09/11/2023] [Indexed: 10/01/2023]
Abstract
Breeding programs for disease resistant bananas in Sub-Saharan Africa generated resistant bananas, which did not meet fruit quality characteristics preferred by consumers. The present study aimed to establish chemotypes underlying preferred cooking bananas of Matooke, Mchare and plantain and less preferred Mbidde bananas, used for beer brewing. The metabolite data of Mbidde showed higher levels of metabolites associated with sour, sweet, and astringent taste; as well as different textural properties associated with cell wall composition and lignin content. Significant differences in the majority of specialised and primary metabolites were observed in the pulp of cooking banana groups. Analysis of peel tissue indicated similar metabolic differences in the protective layer surrounding the pulp and suggested a distinct genetic regulation of phenylpropanoid and flavonoid pathways between the genome groups. In summary, the present data can be used to establish metabolic traits associated with consumer preference, which can augment modern breeding programs.
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Affiliation(s)
- Margit Drapal
- School of Biological Sciences, Royal Holloway, University of London, Egham Hill, Egham, Surrey TW20 0EX, UK
| | - Delphine Amah
- International Institute of Tropical Agriculture, Ibadan, Nigeria
| | - Brigitte Uwimana
- International Institute of Tropical Agriculture, Sendusu, Uganda
| | - Allan Brown
- International Institute of Tropical Agriculture, Arusha, Tanzania
| | - Rony Swennen
- International Institute of Tropical Agriculture, Sendusu, Uganda; Department of Biosystems, KU Leuven University, W. De Croylaan 42, 3001 Leuven, Belgium
| | - Paul D Fraser
- School of Biological Sciences, Royal Holloway, University of London, Egham Hill, Egham, Surrey TW20 0EX, UK.
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Nwogha JS, Wosene AG, Raveendran M, Obidiegwu JE, Oselebe HO, Kambale R, Chilaka CA, Rajagopalan VR. Comparative Metabolomics Profiling Reveals Key Metabolites and Associated Pathways Regulating Tuber Dormancy in White Yam ( Dioscorea rotundata Poir.). Metabolites 2023; 13:metabo13050610. [PMID: 37233651 DOI: 10.3390/metabo13050610] [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: 03/15/2023] [Revised: 04/11/2023] [Accepted: 04/21/2023] [Indexed: 05/27/2023] Open
Abstract
Yams are economic and medicinal crops with a long growth cycle, spanning between 9-11 months due to their prolonged tuber dormancy. Tuber dormancy has constituted a major constraint in yam production and genetic improvement. In this study, we performed non-targeted comparative metabolomic profiling of tubers of two white yam genotypes, (Obiaoturugo and TDr1100873), to identify metabolites and associated pathways that regulate yam tuber dormancy using gas chromatography-mass spectrometry (GC-MS). Yam tubers were sampled between 42 days after physiological maturity (DAPM) till tuber sprouting. The sampling points include 42-DAPM, 56-DAPM, 87DAPM, 101-DAPM, 115-DAPM, and 143-DAPM. A total of 949 metabolites were annotated, 559 in TDr1100873 and 390 in Obiaoturugo. A total of 39 differentially accumulated metabolites (DAMs) were identified across the studied tuber dormancy stages in the two genotypes. A total of 27 DAMs were conserved between the two genotypes, whereas 5 DAMs were unique in the tubers of TDr1100873 and 7 DAMs were in the tubers of Obiaoturugo. The differentially accumulated metabolites (DAMs) spread across 14 major functional chemical groups. Amines and biogenic polyamines, amino acids and derivatives, alcohols, flavonoids, alkaloids, phenols, esters, coumarins, and phytohormone positively regulated yam tuber dormancy induction and maintenance, whereas fatty acids, lipids, nucleotides, carboxylic acids, sugars, terpenoids, benzoquinones, and benzene derivatives positively regulated dormancy breaking and sprouting in tubers of both yam genotypes. Metabolite set enrichment analysis (MSEA) revealed that 12 metabolisms were significantly enriched during yam tuber dormancy stages. Metabolic pathway topology analysis further revealed that six metabolic pathways (linoleic acid metabolic pathway, phenylalanine metabolic pathway, galactose metabolic pathway, starch and sucrose metabolic pathway, alanine-aspartate-glutamine metabolic pathways, and purine metabolic pathway) exerted significant impact on yam tuber dormancy regulation. This result provides vital insights into molecular mechanisms regulating yam tuber dormancy.
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Affiliation(s)
- Jeremiah S Nwogha
- Department of Horticulture and Plant Sciences, College of Agriculture and Veterinary Medicine, Jimma University, Jimma P.O. Box 307, Ethiopia
- Centre for Plant Molecular Biology & Biotechnology, Departments of Plant Biotechnology and Biochemistry, Tamil Nadu Agricultural University, Coimbatore 641003, India
- Yam Research Programme, National Root Crops Research Institute, Umudike 440001, Nigeria
| | - Abtew G Wosene
- Department of Horticulture and Plant Sciences, College of Agriculture and Veterinary Medicine, Jimma University, Jimma P.O. Box 307, Ethiopia
| | - Muthurajan Raveendran
- Centre for Plant Molecular Biology & Biotechnology, Departments of Plant Biotechnology and Biochemistry, Tamil Nadu Agricultural University, Coimbatore 641003, India
| | - Jude E Obidiegwu
- Yam Research Programme, National Root Crops Research Institute, Umudike 440001, Nigeria
| | - Happiness O Oselebe
- Department of Crop Production and Landscape Management, Ebonyi State University, Abakaliki 480282, Nigeria
| | - Rohit Kambale
- Centre for Plant Molecular Biology & Biotechnology, Departments of Plant Biotechnology and Biochemistry, Tamil Nadu Agricultural University, Coimbatore 641003, India
| | - Cynthia A Chilaka
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast BT9 5DL, UK
| | - Veera Ranjani Rajagopalan
- Centre for Plant Molecular Biology & Biotechnology, Departments of Plant Biotechnology and Biochemistry, Tamil Nadu Agricultural University, Coimbatore 641003, India
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Campos M, Kelley E, Gravendeel B, Médail F, Maarten Christenhusz JM, Fay MF, Catalán P, Leitch IJ, Forest F, Wilkin P, Viruel J. Genomic, spatial and morphometric data for discrimination of four species in the Mediterranean Tamus clade of yams (Dioscorea, Dioscoreaceae). ANNALS OF BOTANY 2023; 131:635-654. [PMID: 36681900 PMCID: PMC10147332 DOI: 10.1093/aob/mcad018] [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: 10/22/2022] [Accepted: 01/23/2023] [Indexed: 05/20/2023]
Abstract
BACKGROUND AND AIMS Among the numerous pantropical species of the yam genus, Dioscorea, only a small group occurs in the Mediterranean basin, including two narrow Pyrenean endemics (Borderea clade) and two Mediterranean-wide species (D. communis and D. orientalis, Tamus clade). However, several currently unrecognized species and infraspecific taxa have been described in the Tamus clade due to significant morphological variation associated with D. communis. Our overarching aim was to investigate taxon delimitation in the Tamus clade using an integrative approach combining phylogenomic, spatial and morphological data. METHODS We analysed 76 herbarium samples using Hyb-Seq genomic capture to sequence 260 low-copy nuclear genes and plastomes, together with morphometric and environmental modelling approaches. KEY RESULTS Phylogenomic reconstructions confirmed that the two previously accepted species of the Tamus clade, D. communis and D. orientalis, are monophyletic and form sister clades. Three subclades showing distinctive geographic patterns were identified within D. communis. These subclades were also identifiable from morphometric and climatic data, and introgression patterns were inferred between subclades in the eastern part of the distribution of D. communis. CONCLUSIONS We propose a taxonomy that maintains D. orientalis, endemic to the eastern Mediterranean region, and splits D. communis sensu lato into three species: D. edulis, endemic to Macaronesia (Canary Islands and Madeira); D. cretica, endemic to the eastern Mediterranean region; and D. communis sensu stricto, widespread across western and central Europe. Introgression inferred between D. communis s.s. and D. cretica is likely to be explained by their relatively recent speciation at the end of the Miocene, disjunct isolation in eastern and western Mediterranean glacial refugia and a subsequent westward recolonization of D. communis s.s. Our study shows that the use of integrated genomic, spatial and morphological approaches allows a more robust definition of species boundaries and the identification of species that previous systematic studies failed to uncover.
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Affiliation(s)
- Miguel Campos
- Royal Botanic Gardens, Kew, Richmond TW9 3DS, UK
- Department of Plant Biology and Ecology, University of Seville, 41012, Spain
- Universidad de Zaragoza-Escuela Politécnica Superior de Huesca, 22071, Huesca, Spain
| | - Emma Kelley
- Royal Botanic Gardens, Kew, Richmond TW9 3DS, UK
| | - Barbara Gravendeel
- Naturalis Biodiversity Center, Leiden 2333 CR, The Netherlands
- Radboud Institute for Biological and Environmental Sciences, RIBES 6500 GL, Nijmegen, The Netherlands
| | - Frédéric Médail
- Institut Méditerranéen de Biodiversité et d’Écologie marine et continentale (IMBE), Aix Marseille University, Avignon University, CNRS, IRD, Campus Aix, Technopôle de l’Environnement Arbois-Méditerranée, F-13545 Aix-en-Provence cedex 4, France
| | | | - Michael F Fay
- Royal Botanic Gardens, Kew, Richmond TW9 3DS, UK
- School of Biological Sciences, University of Western Australia, Crawley, WA 6009, Australia
| | - Pilar Catalán
- Universidad de Zaragoza-Escuela Politécnica Superior de Huesca, 22071, Huesca, Spain
- Grupo de Bioquímica, Biofísica y Biología Computacional (BIFI, UNIZAR), Unidad Asociada al CSIC, Zaragoza 50018, Spain
| | | | - Félix Forest
- Royal Botanic Gardens, Kew, Richmond TW9 3DS, UK
| | - Paul Wilkin
- Royal Botanic Gardens, Kew, Richmond TW9 3DS, UK
| | - Juan Viruel
- Royal Botanic Gardens, Kew, Richmond TW9 3DS, UK
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A 1H NMR-based metabolomics approach for the identification of differential metabolites between Chinese yam tubers and yam bulbils. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2022.105097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Enzyme inhibitory activity of Dioscorea nipponica Makito hydroethanolic extracts of leaves and tubers in relation to their major secondary metabolites. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Drapal M, Enfissi EMA, Fraser PD. The chemotype core collection of genus Nicotiana. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 110:1516-1528. [PMID: 35322494 PMCID: PMC9321557 DOI: 10.1111/tpj.15745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 03/07/2022] [Accepted: 03/14/2022] [Indexed: 05/26/2023]
Abstract
Sustainable production of chemicals and improving these biosources by engineering metabolic pathways to create efficient plant-based biofactories relies on the knowledge of available chemical/biosynthetic diversity present in the plant. Nicotiana species are well known for their amenability towards transformation and other new plant breeding techniques. The genus Nicotiana is primarily known through Nicotiana tabacum L., the source of tobacco leaves and all respective tobacco products. Due to the prevalence of the latter, N. tabacum and related Nicotiana species are one of the most extensively studied plants. The majority of studies focused solely on N. tabacum or other individual species for chemotyping. The present study analysed a diversity panel including 17 Nicotiana species and six accessions of Nicotiana benthamiana and created a data set that effectively represents the chemotype core collection of the genus Nicotiana. The utilisation of several analytical platforms and previously published libraries/databases enabled the identification and measurement of over 360 metabolites of a wide range of chemical classes as well as thousands of unknowns with dedicated spectral and chromatographic properties.
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Affiliation(s)
- Margit Drapal
- Department of Biological SciencesRoyal Holloway University of LondonEghamUK
| | | | - Paul D. Fraser
- Department of Biological SciencesRoyal Holloway University of LondonEghamUK
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Drapal M, Perez-Fons L, Price EJ, Amah D, Bhattacharjee R, Heider B, Rouard M, Swennen R, Lopez-Lavalle LAB, Fraser PD. Datasets from harmonised metabolic phenotyping of root, tuber and banana crop. Data Brief 2022; 42:108041. [PMID: 35341032 PMCID: PMC8943254 DOI: 10.1016/j.dib.2022.108041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 11/19/2022] Open
Abstract
Biochemical characterisation of germplasm collections and crop wild relatives (CWRs) facilitates the assessment of biological potential and the selection of breeding lines for crop improvement. Data from the biochemical characterisation of staple root, tuber and banana (RTB) crops, i.e. banana (Musa spp.), cassava (Manihot esculenta), potato (Solanum tuberosum), sweet potato (Ipomoea batatas) and yam (Dioscorea spp.), using a metabolomics approach is presented. The data support the previously published research article “Metabolite database for root, tuber, and banana crops to facilitate modern breeding in understudied crops” (Price et al., 2020) [1]. Diversity panels for each crop, which included a variety of species, accessions, landraces and CWRs, were characterised. The biochemical profile for potato was based on five elite lines under abiotic stress. Metabolites were extracted from the tissue of foliage and storage organs (tuber, root and banana pulp) via solvent partition. Extracts were analysed via a combination of liquid chromatography – mass spectrometry (LC-MS), gas chromatography (GC)-MS, high pressure liquid chromatography with photodiode array detector (HPLC-PDA) and ultra performance liquid chromatography (UPLC)-PDA. Metabolites were identified by mass spectral matching to in-house libraries comprised from authentic standards and comparison to databases or previously published literature.
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Affiliation(s)
- Margit Drapal
- Royal Holloway University of London, Surrey, TW20 0EX, United Kingdom
| | - Laura Perez-Fons
- Royal Holloway University of London, Surrey, TW20 0EX, United Kingdom
| | - Elliott J. Price
- Royal Holloway University of London, Surrey, TW20 0EX, United Kingdom
| | - Delphine Amah
- International Institute of Tropical Agriculture, PMB 5320, Ibadan, Nigeria
| | | | - Bettina Heider
- International Potato Center, La Molina, CP 1558, Lima, Peru
| | - Mathieu Rouard
- Bioversity International, Parc Scientifique Agropolis II, 34397 Montpellier, France
| | - Rony Swennen
- Laboratory of Tropical Crop Improvement, Division of Crop Biotechnics, KU Leuven, B-3001 Leuven, Belgium
- Bioversity International, Willem De Croylaan 42, B-3001 Leuven, Belgium
- International Institute of Tropical Agriculture. C/0 The Nelson Mandela African Institution of Science and Technology, P.O. Box 44, Arusha, Tanzania
| | | | - Paul D. Fraser
- Royal Holloway University of London, Surrey, TW20 0EX, United Kingdom
- Corresponding author. @FraserRhul
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Health Beneficial Phytochemicals in Dioscorea caucasica Lipsky Leaves and Tubers and Their Inhibitory Effects on Physiologically Important Enzymes. PLANTS 2022; 11:plants11101341. [PMID: 35631766 PMCID: PMC9147247 DOI: 10.3390/plants11101341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/29/2022] [Accepted: 05/10/2022] [Indexed: 11/17/2022]
Abstract
Dioscorea caucasica Lipsky is a tertiary relict endemic plant naturally growing in the western part of the trans-Caucasus regions; it has adapted and successfully grows in the temperate region of the Baltic countries. Information about its phytochemical composition and bioactivities is rather scarce. This study reports the results of the identification of 41 compounds in D. caucasica leaf and tuber hydroethanolic extracts using UPLC-QTOF/MS. Organic acids were found in both extracts; hydroxycinnamates and flavonoids were the main phytochemicals in the leaves, while steroidal glycosides, fatty acids (mainly hydroxylated) and carbohydrates were found in the tubers. Leaf extracts inhibited enzymes in a dose-dependent manner and were remarkably stronger inhibitors of physiologically important enzymes, namely α-amylase (48.6% at 480 µg/mL), α-glucosidase (IC50 = 41.99 and 47.95 µg/mL with and without 0.1 M Na2CO3), acetylcholinesterase (45.85% at 100 µg/mL) and angiotensin-converting enzyme (IC50 = 829.7 µg/mL), most likely due to the presence of some quantified polyphenolic antioxidants. The mode of inhibition of α-glucosidase and acetylcholinesterase was assessed via kinetic studies based on Lineweaver–Burk inhibition plots. Leaf and tuber extracts acted as mixed-type and competitive inhibitors of α-glucosidase, respectively; the leaf extract demonstrated an uncompetitive inhibition mode of acetylcholinesterase. It is expected that this new knowledge of D. caucasica will serve for its valorization in developing new health beneficial ingredients for functional foods and nutraceuticals.
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Zeng X, Liu D, Huang L. Metabolome Profiling of Eight Chinese Yam ( Dioscorea polystachya Turcz.) Varieties Reveals Metabolite Diversity and Variety Specific Uses. Life (Basel) 2021; 11:687. [PMID: 34357058 PMCID: PMC8308037 DOI: 10.3390/life11070687] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/24/2021] [Accepted: 07/06/2021] [Indexed: 01/04/2023] Open
Abstract
The Chinese yam (Dioscorea polystachya Turcz.) is an underutilized orphan tuber crop. However, in China it has been used in traditional medicine and food for centuries due to the presence of high starch, protein, fiber, and biologically active compounds. Knowledge on the metabolomic profiles of Chinese yam varieties is needed to explore the underutilized metabolites and variety specific uses. Here, the metabolome of eight Chinese yam varieties that are cultivated in different Chinese regions was profiled. A total of 431 metabolites belonging to different biochemical classes was detected. The majority of detected metabolites were classified as amino acids and derivatives. The different yam varieties offer unique uses; e.g., Hebei Ma Yam, Henan Huai Yam, and Henan Wild Yam were the most metabolically enriched and suitable as food and medicine. Yams from Hubei region had comparable nutritional profiles, which is most probably due to their geographical origin. Specifically, Henan Wild Yam had the highest concentrations of diosgenin, vitamins, and polysaccharides. Overall, this study presents a metabolome reference for D. polystachya varieties.
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Affiliation(s)
- Xiaoxuan Zeng
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China; (X.Z.); (D.L.)
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Dahui Liu
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China; (X.Z.); (D.L.)
| | - Luqi Huang
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China; (X.Z.); (D.L.)
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
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Semwal P, Painuli S, Cruz-Martins N. Dioscorea deltoidea wall. Ex Griseb: A review of traditional uses, bioactive compounds and biological activities. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.100969] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Syombua ED, Zhang Z, Tripathi JN, Ntui VO, Kang M, George OO, Edward NK, Wang K, Yang B, Tripathi L. A CRISPR/Cas9-based genome-editing system for yam (Dioscorea spp.). PLANT BIOTECHNOLOGY JOURNAL 2021; 19:645-647. [PMID: 33222361 PMCID: PMC8051594 DOI: 10.1111/pbi.13515] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/27/2020] [Accepted: 11/06/2020] [Indexed: 05/21/2023]
Affiliation(s)
- Easter D. Syombua
- International Institute of Tropical Agriculture (IITA)NairobiKenya
- Centre for Biotechnology and BioinformaticsUniversity of NairobiNairobiKenya
| | - Zhengzhi Zhang
- Division of Plant SciencesBond Life Sciences CenterUniversity of MissouriColumbiaMOUSA
| | | | | | - Minjeong Kang
- Department of AgronomyIowa State UniversityAmesIAUSA
| | - Obiero O. George
- Centre for Biotechnology and BioinformaticsUniversity of NairobiNairobiKenya
| | - Nguu K. Edward
- Department of BiochemistryUniversity of NairobiNairobiKenya
| | - Kan Wang
- Department of AgronomyIowa State UniversityAmesIAUSA
| | - Bing Yang
- Division of Plant SciencesBond Life Sciences CenterUniversity of MissouriColumbiaMOUSA
- Donald Danforth Plant Science CenterSt. LouisMOUSA
| | - Leena Tripathi
- International Institute of Tropical Agriculture (IITA)NairobiKenya
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Medicinal Use of Testosterone and Related Steroids Revisited. Molecules 2021; 26:molecules26041032. [PMID: 33672087 PMCID: PMC7919692 DOI: 10.3390/molecules26041032] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/11/2021] [Accepted: 02/11/2021] [Indexed: 12/31/2022] Open
Abstract
Testosterone derivatives and related compounds (such as anabolic-androgenic steroids—AAS) are frequently misused by athletes (both professional and amateur) wishing to promote muscle development and strength or to cover AAS misuse. Even though these agents are vastly regarded as abusive material, they have important pharmacological activities that cannot be easily replaced by other drugs and have therapeutic potential in a range of conditions (e.g., wasting syndromes, severe burns, muscle and bone injuries, anemia, hereditary angioedema). Testosterone and related steroids have been in some countries treated as controlled substances, which may affect the availability of these agents for patients who need them for therapeutic reasons in a given country. Although these agents are currently regarded as rather older generation drugs and their use may lead to serious side-effects, they still have medicinal value as androgenic, anabolic, and even anti-androgenic agents. This review summarizes and revisits the medicinal use of compounds based on the structure and biological activity of testosterone, with examples of specific compounds. Additionally, some of the newer androgenic-anabolic compounds are discussed such as selective androgen receptor modulators, the efficacy/adverse-effect profiles of which have not been sufficiently established and which may pose a greater risk than conventional androgenic-anabolic agents.
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Yu Y, Guo X, Li X, Dai D, Xu X, Ge X, Li Y, Yang T. Organ‐ and Age‐Specific Differences of
Dioscorea polystachya
Compounds Measured by UPLC‐QTOF/MS. Chem Biodivers 2021; 18:e2000856. [DOI: 10.1002/cbdv.202000856] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/07/2020] [Indexed: 01/14/2023]
Affiliation(s)
- Yan‐Ge Yu
- Industrial Crops Research Institute Henan Academy of Agricultural Sciences Zhengzhou 450002 P. R. China
- Henan Provincial Center for Engineering and Technology Research of Traditional Chinese Medicine Zhengzhou 450002 P. R. China
| | - Xiao‐Yang Guo
- Industrial Crops Research Institute Henan Academy of Agricultural Sciences Zhengzhou 450002 P. R. China
- Henan Provincial Center for Engineering and Technology Research of Traditional Chinese Medicine Zhengzhou 450002 P. R. China
| | - Xiang‐Yang Li
- Industrial Crops Research Institute Henan Academy of Agricultural Sciences Zhengzhou 450002 P. R. China
- Henan Provincial Center for Engineering and Technology Research of Traditional Chinese Medicine Zhengzhou 450002 P. R. China
| | - Dan‐Dan Dai
- Industrial Crops Research Institute Henan Academy of Agricultural Sciences Zhengzhou 450002 P. R. China
- Henan Provincial Center for Engineering and Technology Research of Traditional Chinese Medicine Zhengzhou 450002 P. R. China
| | - Xin‐Ran Xu
- Industrial Crops Research Institute Henan Academy of Agricultural Sciences Zhengzhou 450002 P. R. China
| | - Xiao‐Jin Ge
- Industrial Crops Research Institute Henan Academy of Agricultural Sciences Zhengzhou 450002 P. R. China
- Henan Provincial Center for Engineering and Technology Research of Traditional Chinese Medicine Zhengzhou 450002 P. R. China
| | - Yan‐Jun Li
- Industrial Crops Research Institute Henan Academy of Agricultural Sciences Zhengzhou 450002 P. R. China
- Henan Provincial Center for Engineering and Technology Research of Traditional Chinese Medicine Zhengzhou 450002 P. R. China
| | - Tie‐Gang Yang
- Industrial Crops Research Institute Henan Academy of Agricultural Sciences Zhengzhou 450002 P. R. China
- Henan Provincial Center for Engineering and Technology Research of Traditional Chinese Medicine Zhengzhou 450002 P. R. China
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15
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Zheng X, Zhu K, Ye J, Price EJ, Deng X, Fraser PD. The effect of β-cyclocitral treatment on the carotenoid content of transgenic Marsh grapefruit (Citrus paradisi Macf.) suspension-cultured cells. PHYTOCHEMISTRY 2020; 180:112509. [PMID: 32966904 DOI: 10.1016/j.phytochem.2020.112509] [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: 07/08/2020] [Revised: 08/26/2020] [Accepted: 08/27/2020] [Indexed: 06/11/2023]
Abstract
This work reports the development of suspension culture system of transgenic Marsh grapefruit (Citrus paradisi Macf., Rutaceae) callus overexpressing bacterial phytoene synthase; and the use of this suspension culture to investigate the effects of β-cyclocitral on carotenoid content and composition. At a β-cyclocitral concentration of 0.5 mM and after ten days cultivation, analysis of the carotenoids showed a significant increase in the content of β-, α-carotene, and phytoene predominantly. The maximal increase in total provitamin A carotenoids content following β-cyclocitral application was ~2-fold higher than the control, reaching 245.8 μg/g DW. The trend for increased transcript levels of biosynthetic genes PSY and ZDS correlated with the enhancement of the content of these carotenes following β-cyclocitral treatment and GC-MS based metabolite profiling showed significant changes of metabolite levels across intermediary metabolism. These findings suggest that β-cyclocitral can act as a chemical elicitor, to enhance the formation of carotenes in citrus suspension-cultured cells (SCC), which could be utilized in studying the regulation of carotenoid biosynthesis and biotechnological application to the renewable production of nutritional carotenoids.
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Affiliation(s)
- Xiongjie Zheng
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan, China
| | - Kaijie Zhu
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan, China
| | - Junli Ye
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan, China
| | - Elliott J Price
- School of Biological Sciences, Royal Holloway, University of London, Egham Hill, Egham, Surrey, TW20 0EX, UK; Faculty of Sports Studies, Masaryk University, Brno, Czech Republic; RECETOX Centre, Masaryk University, Brno, Czech Republic
| | - Xiuxin Deng
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan, China.
| | - Paul D Fraser
- School of Biological Sciences, Royal Holloway, University of London, Egham Hill, Egham, Surrey, TW20 0EX, UK.
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16
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Obidiegwu JE, Lyons JB, Chilaka CA. The Dioscorea Genus (Yam)-An Appraisal of Nutritional and Therapeutic Potentials. Foods 2020; 9:E1304. [PMID: 32947880 PMCID: PMC7555206 DOI: 10.3390/foods9091304] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/11/2020] [Accepted: 09/12/2020] [Indexed: 12/19/2022] Open
Abstract
The quest for a food secure and safe world has led to continuous effort toward improvements of global food and health systems. While the developed countries seem to have these systems stabilized, some parts of the world still face enormous challenges. Yam (Dioscorea species) is an orphan crop, widely distributed globally; and has contributed enormously to food security especially in sub-Saharan Africa because of its role in providing nutritional benefits and income. Additionally, yam has non-nutritional components called bioactive compounds, which offer numerous health benefits ranging from prevention to treatment of degenerative diseases. Pharmaceutical application of diosgenin and dioscorin, among other compounds isolated from yam, has shown more prospects recently. Despite the benefits embedded in yam, reports on the nutritional and therapeutic potentials of yam have been fragmented and the diversity within the genus has led to much confusion. An overview of the nutritional and health importance of yam will harness the crop to meet its potential towards combating hunger and malnutrition, while improving global health. This review makes a conscious attempt to provide an overview regarding the nutritional, bioactive compositions and therapeutic potentials of yam diversity. Insights on how to increase its utilization for a greater impact are elucidated.
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Affiliation(s)
- Jude E. Obidiegwu
- National Root Crops Research Institute, Umudike, Km 8 Umuahia-Ikot Ekpene Road, P.M.B 7006 Umuahia, Abia State, Nigeria
| | - Jessica B. Lyons
- Department of Molecular and Cell Biology and Innovative Genomics Institute, University of California, Berkeley, 142 Weill Hall #3200, Berkeley, CA 94720-3200, USA;
| | - Cynthia A. Chilaka
- Institute of Pharmacology and Toxicology, Julius Maximilian University of Würzburg, Versbacher Straβe 9, 97078 Würzburg, Germany; or
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17
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Drapal M, Amah D, Schöny H, Brown A, Swennen R, Fraser PD. Assessment of metabolic variability and diversity present in leaf, peel and pulp tissue of diploid and triploid Musa spp. PHYTOCHEMISTRY 2020; 176:112388. [PMID: 32344192 DOI: 10.1016/j.phytochem.2020.112388] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 04/08/2020] [Accepted: 04/10/2020] [Indexed: 05/26/2023]
Abstract
Banana (Musa spp.) plants produce many health promoting compounds in leaf, peel and pulp. For a robust metabolic analysis of these tissues, leaf at five developmental stages were compared to assess suitable sampling practices. Results confirmed that the common sampling practise of leaf 3 is applicable for metabolic comparisons. The developed work flow was applied to analyse the metabolite diversity present in 18 different Musa varieties, providing baseline levels of metabolites in leaf, peel and pulp tissue. Correlation analysis was then used to ascertain whether similar trends can be detected in the three plant tissues of the diversity panel. The genome group displayed a dominant role in the composition of the metabolome in all three tissues. This led to the conclusion that a correlation between tissues was only possible within a genome group as the different parental backgrounds caused too great a variation in the metabolomes. It also suggests the metabolome could be used to monitor the interaction/hybridisation of genomes during breeding programmes.
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Affiliation(s)
- Margit Drapal
- School of Biological Sciences, Royal Holloway, University of London, Egham Hill, Egham, Surrey, TW20 0EX, UK
| | - Delphine Amah
- International Institute of Tropical Agriculture, Ibadan, Nigeria
| | - Harald Schöny
- School of Biological Sciences, Royal Holloway, University of London, Egham Hill, Egham, Surrey, TW20 0EX, UK
| | - Allan Brown
- International Institute of Tropical Agriculture, Arusha, Tanzania
| | - Rony Swennen
- International Institute of Tropical Agriculture, Arusha, Tanzania; Bioversity International, W. De Croylaan 42, 3001, Heverlee, Belgium; Department of Biosystems, KU Leuven University, W. De Croylaan 42, 3001, Leuven, Belgium
| | - Paul D Fraser
- School of Biological Sciences, Royal Holloway, University of London, Egham Hill, Egham, Surrey, TW20 0EX, UK.
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18
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Chen JN, Gao Q, Liu CJ, Li DJ, Liu CQ, Xue YL. Comparison of volatile components in 11 Chinese yam (Dioscorea spp.) varieties. FOOD BIOSCI 2020. [DOI: 10.1016/j.fbio.2020.100531] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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19
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Siadjeu C, Pucker B, Viehöver P, Albach DC, Weisshaar B. High Contiguity De Novo Genome Sequence Assembly of Trifoliate Yam ( Dioscorea dumetorum) Using Long Read Sequencing. Genes (Basel) 2020; 11:E274. [PMID: 32143301 PMCID: PMC7140821 DOI: 10.3390/genes11030274] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/25/2020] [Accepted: 02/29/2020] [Indexed: 12/17/2022] Open
Abstract
Trifoliate yam (Dioscorea dumetorum) is one example of an orphan crop, not traded internationally. Post-harvest hardening of the tubers of this species starts within 24 h after harvesting and renders the tubers inedible. Genomic resources are required for D. dumetorum to improve breeding for non-hardening varieties as well as for other traits. We sequenced the D. dumetorum genome and generated the corresponding annotation. The two haplophases of this highly heterozygous genome were separated to a large extent. The assembly represents 485 Mbp of the genome with an N50 of over 3.2 Mbp. A total of 35,269 protein-encoding gene models as well as 9941 non-coding RNA genes were predicted, and functional annotations were assigned.
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Affiliation(s)
- Christian Siadjeu
- Institute for Biology and Environmental Sciences, Biodiversity and Evolution of Plants, Carl-von-Ossietzky University Oldenburg, Carl-von-Ossietzky Str. 9-11, 26111 Oldenburg, Germany; (C.S.); (D.C.A.)
- Genetics and Genomics of Plants, Faculty of Biology, Center for Biotechnology (CeBiTec), Bielefeld University, Sequenz 1, 33615 Bielefeld, NRW, Germany; (B.P.); (P.V.)
| | - Boas Pucker
- Genetics and Genomics of Plants, Faculty of Biology, Center for Biotechnology (CeBiTec), Bielefeld University, Sequenz 1, 33615 Bielefeld, NRW, Germany; (B.P.); (P.V.)
- Molecular Genetics and Physiology of Plants, Faculty of Biology and Biotechnology, Ruhr-University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Prisca Viehöver
- Genetics and Genomics of Plants, Faculty of Biology, Center for Biotechnology (CeBiTec), Bielefeld University, Sequenz 1, 33615 Bielefeld, NRW, Germany; (B.P.); (P.V.)
| | - Dirk C. Albach
- Institute for Biology and Environmental Sciences, Biodiversity and Evolution of Plants, Carl-von-Ossietzky University Oldenburg, Carl-von-Ossietzky Str. 9-11, 26111 Oldenburg, Germany; (C.S.); (D.C.A.)
| | - Bernd Weisshaar
- Genetics and Genomics of Plants, Faculty of Biology, Center for Biotechnology (CeBiTec), Bielefeld University, Sequenz 1, 33615 Bielefeld, NRW, Germany; (B.P.); (P.V.)
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20
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Fan D, Zhong H, Hu B, Tian Z, Sun L, Fischer G, Wang X, Jiang Z. Agro-ecological suitability assessment of Chinese Medicinal Yam under future climate change. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2020; 42:987-1000. [PMID: 31617038 PMCID: PMC7188720 DOI: 10.1007/s10653-019-00437-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 09/24/2019] [Indexed: 05/24/2023]
Abstract
Chinese Medicinal Yam (CMY) has been prescribed as medicinal food for thousand years in China by Traditional Chinese Medicine (TCM) practitioners. Its medical benefits include nourishing the stomach and spleen to improve digestion, replenishing lung and kidney, etc., according to the TCM literature. As living standard rises and public health awareness improves in recent years, the potential medicinal benefits of CMY have attracted increasing attention in China. It has been found that the observed climate change in last several decades, together with the change in economic structure, has driven significant shift in the pattern of the traditional CMY planting areas. To identify suitable planting area for CMY in the near future is critical for ensuring the quality and supply quantity of CMY, guiding the layout of CMY industry, and safeguarding the sustainable development of CMY resources for public health. In this study, we first collect 30-year records of CMY varieties and their corresponding phenology and agro-meteorological observations. We then consolidate these data and use them to enrich and update the eco-physiological parameters of CMY in the agro-ecological zone (AEZ) model. The updated CMY varieties and AEZ model are validated using the historical planting area and production under observed climate conditions. After the successful validation, we use the updated AEZ model to simulate the potential yield of CMY and identify the suitable planting regions under future climate projections in China. This study shows that regions with high ecological similarity to the genuine and core producing areas of CMY mainly distribute in eastern Henan, southeastern Hebei, and western Shandong. The climate suitability of these areas will be improved due to global warming in the next 50 years, and therefore, they will continue to be the most suitable CMY planting regions.
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Affiliation(s)
- Dongli Fan
- Shanghai Institute of Technology, Shanghai, 201418, China
| | - Honglin Zhong
- Department of Geographical Sciences, University of Maryland, College Park, MD, 20742, USA
| | - Biao Hu
- Shanghai Institute of Technology, Shanghai, 201418, China
| | - Zhan Tian
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Laixiang Sun
- Department of Geographical Sciences, University of Maryland, College Park, MD, 20742, USA.
- School of Finance and Management, SOAS University of London, Russel Square, London, WC1H 0XG, UK.
- International Institute for Applied Systems Analysis (IIASA), 2361, Laxenburg, Austria.
| | - Günther Fischer
- International Institute for Applied Systems Analysis (IIASA), 2361, Laxenburg, Austria
| | - Xiangyi Wang
- Shanghai Institute of Technology, Shanghai, 201418, China
| | - Zhiyu Jiang
- Shanghai Institute of Technology, Shanghai, 201418, China
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21
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Price EJ, Drapal M, Perez‐Fons L, Amah D, Bhattacharjee R, Heider B, Rouard M, Swennen R, Becerra Lopez‐Lavalle LA, Fraser PD. Metabolite database for root, tuber, and banana crops to facilitate modern breeding in understudied crops. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 101:1258-1268. [PMID: 31845400 PMCID: PMC7383867 DOI: 10.1111/tpj.14649] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 11/09/2019] [Accepted: 11/28/2019] [Indexed: 05/06/2023]
Abstract
Roots, tubers, and bananas (RTB) are vital staples for food security in the world's poorest nations. A major constraint to current RTB breeding programmes is limited knowledge on the available diversity due to lack of efficient germplasm characterization and structure. In recent years large-scale efforts have begun to elucidate the genetic and phenotypic diversity of germplasm collections and populations and, yet, biochemical measurements have often been overlooked despite metabolite composition being directly associated with agronomic and consumer traits. Here we present a compound database and concentration range for metabolites detected in the major RTB crops: banana (Musa spp.), cassava (Manihot esculenta), potato (Solanum tuberosum), sweet potato (Ipomoea batatas), and yam (Dioscorea spp.), following metabolomics-based diversity screening of global collections held within the CGIAR institutes. The dataset including 711 chemical features provides a valuable resource regarding the comparative biochemical composition of each RTB crop and highlights the potential diversity available for incorporation into crop improvement programmes. Particularly, the tropical crops cassava, sweet potato and banana displayed more complex compositional metabolite profiles with representations of up to 22 chemical classes (unknowns excluded) than that of potato, for which only metabolites from 10 chemical classes were detected. Additionally, over 20% of biochemical signatures remained unidentified for every crop analyzed. Integration of metabolomics with the on-going genomic and phenotypic studies will enhance 'omics-wide associations of molecular signatures with agronomic and consumer traits via easily quantifiable biochemical markers to aid gene discovery and functional characterization.
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Affiliation(s)
- Elliott J. Price
- Royal Holloway University of London, SurreyTW20 0EXEghamUnited Kingdom
- Present address:
Masaryk UniversityBrno‐Bohunice625 00Czech Republic
| | - Margit Drapal
- Royal Holloway University of London, SurreyTW20 0EXEghamUnited Kingdom
| | - Laura Perez‐Fons
- Royal Holloway University of London, SurreyTW20 0EXEghamUnited Kingdom
| | - Delphine Amah
- International Institute of Tropical AgriculturePMB 5320IbadanNigeria
| | | | | | - Mathieu Rouard
- Bioversity InternationalParc Scientifique Agropolis II34397MontpellierFrance
| | - Rony Swennen
- Laboratory of Tropical Crop ImprovementDivision of Crop BiotechnicsKU LeuvenB‐3001LeuvenBelgium
- Bioversity InternationalWillem De Croylaan 42B‐3001LeuvenBelgium
- International Institute of Tropical Agriculture. C/0 The Nelson Mandela African Institution of Science and TechnologyP.O. Box 44ArushaTanzania
| | | | - Paul D. Fraser
- Royal Holloway University of London, SurreyTW20 0EXEghamUnited Kingdom
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22
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Contribution of aroma compounds to the antioxidant properties of roasted white yam ( Dioscorea rotundata). BMC Chem 2019; 13:133. [PMID: 31891159 PMCID: PMC6921554 DOI: 10.1186/s13065-019-0650-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 11/08/2019] [Indexed: 11/10/2022] Open
Abstract
Background The aroma chemistry and the contribution of the aroma compounds to the anti-oxidative properties of roasted yam have yet to be characterized. The growing popularity of roasted yam in regions where they are being consumed calls for a concerted effort to elucidate their aroma chemistry as well as their anti-oxidative properties. Results The aroma compounds in roasted white yam (Dioscorea rotundata) were isolated and identified using static headspace-gas chromatography-mass spectrometry (SH-GC-MS) and gas chromatography-olfactometry (GC-O). In addition, the anti-oxidative activities of the most abundant volatile heterocyclic compounds (2 pyrroles, 4 furans and 3 pyrazines) were evaluated on their inhibitory effect towards the oxidation of hexanal for a period of 30 days. Twenty-nine aroma-active compounds with a flavour dilution (FD) factor range of 2-256 and an array of odour notes were obtained. Among them, the highest odour activities (FD ≥ 128) factors were determined for 2-acetyl furan and 2-acetylpyrrole. Other compounds with significant FD factors ≥ 32 were; 2-methylpyrazine, ethyl furfural, and 5-hydroxy methyl furfural. Conclusion Results of the anti-oxidative activity showed that the pyrroles exhibited the greatest antioxidant activity among all the tested heterocyclic compounds. This was followed by the furans and the pyrazines which had the least antioxidant activity.
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23
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Drapal M, de Carvalho EB, Rouard M, Amah D, Sardos J, Van den Houwe I, Brown A, Roux N, Swennen R, Fraser PD. Metabolite profiling characterises chemotypes of Musa diploids and triploids at juvenile and pre-flowering growth stages. Sci Rep 2019; 9:4657. [PMID: 30874619 PMCID: PMC6420674 DOI: 10.1038/s41598-019-41037-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 02/22/2019] [Indexed: 11/16/2022] Open
Abstract
Bananas (Musa spp.) are consumed worldwide as dessert and cooking types. Edible banana varieties are for the most part seedless and sterile and therefore vegetatively propagated. This confers difficulties for breeding approaches against pressing biotic and abiotic threats and for the nutritional enhancement of banana pulp. A panel of banana accessions, representative of the diversity of wild and cultivated bananas, was analysed to assess the range of chemotypes available globally. The focus of this assessment was banana leaves at two growth stages (juvenile and pre-flowering), to see when during the plant growth metabolic differences can be established. The metabolic data corresponded to genomic trends reported in previous studies and demonstrated a link between metabolites/pathways and the genomes of M. acuminata and M. balbisiana. Furthermore, the vigour and resistance traits of M. balbisiana was connected to the phenolic composition and showed differences with the number of B genes in the hybrid accessions. Differences in the juvenile and pre-flowering data led to low correlation between the growth stages for prediction purposes.
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Affiliation(s)
- Margit Drapal
- School of Biological Sciences, Royal Holloway, University of London, Egham Hill, Egham, Surrey, TW20 0EX, UK
| | | | - Mathieu Rouard
- Bioversity France, Parc Scientifique Agropolis II, 34397, Montpellier, Cedex 5, France
| | - Delphine Amah
- International Institute of Tropical Agriculture, Ibadan, Nigeria
| | - Julie Sardos
- Bioversity France, Parc Scientifique Agropolis II, 34397, Montpellier, Cedex 5, France
| | | | - Allan Brown
- International Institute of Tropical Agriculture, Arusha, Tanzania
| | - Nicolas Roux
- Bioversity France, Parc Scientifique Agropolis II, 34397, Montpellier, Cedex 5, France
| | - Rony Swennen
- International Institute of Tropical Agriculture, Arusha, Tanzania.,Bioversity International, W. De Croylaan 42, 3001, Heverlee, Belgium.,Department of Biosystem, KU Leuven University, Oude Markt 13 - bus 5005, 3000, Leuven, Belgium
| | - Paul D Fraser
- School of Biological Sciences, Royal Holloway, University of London, Egham Hill, Egham, Surrey, TW20 0EX, UK.
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24
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Drapal M, Rossel G, Heider B, Fraser PD. Metabolic diversity in sweet potato ( Ipomoea batatas, Lam.) leaves and storage roots. HORTICULTURE RESEARCH 2019; 6:2. [PMID: 30603089 PMCID: PMC6312539 DOI: 10.1038/s41438-018-0075-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 07/11/2018] [Accepted: 08/01/2018] [Indexed: 05/14/2023]
Abstract
Sweet potato (Ipomoea batatas, Lam.) is an important root vegetable in developing countries. After its domestication in Neotropical America, human migration led to the distribution of the sweet potato plant throughout the world. Both leaf and storage root are high in compounds of nutritional value. Yet, the storage roots are of particular value due to their significant content of provitamin A (β-carotene). The breeding effort for elite sweet potato lines led to the reduction of genetic diversity and the potential to improve other traits. The focus of the present study was to assess the metabolic diversity of 27 sweet potato cultivars including landraces and improved varieties. A metabolite profiling approach was optimised for sweet potato leaf and storage root tissue and 130 metabolites identified with three different analysis platforms. The data highlighted a lack of correlation between storage root phenotype and leaf metabolism. Furthermore, the metabolic diversity of storage roots was based on the secondary metabolism, including phenylpropanoids and carotenoids. Three cultivars of three different flesh colouration (yellow, orange and purple) showed a significant difference of the primary metabolism. This data demonstrates the value of metabolite profiling to breeding programs as a means of identifying differences in phenotypes/chemotypes and characterising parental material for future pre-breeding resources.
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Affiliation(s)
- Margit Drapal
- Biological Sciences, Royal Holloway University of London, Egham, TW20 0EX UK
| | - Genoveva Rossel
- International Potato Center (CIP), CGIAR Research Program on Roots, Tubers and Bananas, Lima, 12 Peru
| | - Bettina Heider
- International Potato Center (CIP), CGIAR Research Program on Roots, Tubers and Bananas, Lima, 12 Peru
| | - Paul D. Fraser
- Biological Sciences, Royal Holloway University of London, Egham, TW20 0EX UK
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25
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Kumar S, Das G, Shin HS, Patra JK. Dioscorea spp. (A Wild Edible Tuber): A Study on Its Ethnopharmacological Potential and Traditional Use by the Local People of Similipal Biosphere Reserve, India. Front Pharmacol 2017; 8:52. [PMID: 28261094 PMCID: PMC5306286 DOI: 10.3389/fphar.2017.00052] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 01/24/2017] [Indexed: 12/16/2022] Open
Abstract
A number of wild crops remain unexplored in this world and among them some have excellent medicinal and nutritional properties. India is a harbor of biodiversity in general and phytodiversity in particular. The plant diversity is distributed from the Western Ghats to Eastern Ghats, along with the North-Eastern region and from the Greater Himalayas to the plain of Ganga. Among these distributed floral regions of the country, the Eastern Ghats are important due to their rich floral diversity. The forests of Odisha form a major part of Eastern Ghats in general and the Similipal Biosphere Reserve (SBR) in particular. The SBR is inhabited by many local communities. The food and medicinal habits of these communities are not fully explored even today. They are dependent on the forests of SBR for their food and medicine. Among their collections from forests, root and tuberous plants play a significant role. The local communities of SBR use about 89 types of tuberous plants for various purposes. Dioscorea is one such tuber, having maximum use among the local of SBR. However, less documentation and no specific reports are available on the food and medicinal values of the species available in this part of the World. Dioscorea species, popularly known as Yam worldwide and as Ban Aalu in Odisha, India, is a prime staple medicinal-food substitute for the majority of rural and local people of the state of India. Of the 13 Dioscorea species available in SBR, 10 species are known to be bitter in taste and unpalatable when taken raw. Since less documentation is available on the Dioscorea species of SBR and their traditional uses, the present study was focused on the ethnobotany, nutritional and pharmacological values of these species along its nutraceutical importance.
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Affiliation(s)
- Sanjeet Kumar
- School of Life Sciences, Ravenshaw University Cuttack, India
| | - Gitishree Das
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul Goyang-si, South Korea
| | - Han-Seung Shin
- Department of Food Science and Biotechnology, Dongguk University-Seoul Goyang-si, South Korea
| | - Jayanta Kumar Patra
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul Goyang-si, South Korea
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26
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Price EJ, Bhattacharjee R, Lopez-Montes A, Fraser PD. Metabolite profiling of yam ( Dioscorea spp.) accessions for use in crop improvement programmes. Metabolomics 2017; 13:144. [PMID: 29104519 PMCID: PMC5641283 DOI: 10.1007/s11306-017-1279-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 09/22/2017] [Indexed: 01/30/2023]
Abstract
INTRODUCTION Ninety-seven percent of yam (Dioscorea spp.) production takes place in low income food deficit countries (LIFDCs) and the crop provides 200 calories a day to approximately 300 million people. Therefore, yams are vital for food security. Yams have high-yield potential and high market value potential yet current breeding of yam is hindered by a lack of genomic information and genetic resources. New tools are needed to modernise breeding strategies and unlock the potential of yam to improve livelihood in LIFDCs. OBJECTIVES Metabolomic screening has been undertaken on a diverse panel of Dioscorea accessions to assess the utility of the approach for advancing breeding strategies in this understudied crop. METHODS Polar and lipophilic extracts from tubers of accessions from the global yam breeding program have been comprehensively profiled via gas chromatography-mass spectrometry. RESULTS A visual pathway representation of the measured yam tuber metabolome has been delivered as a resource for biochemical evaluation of yam germplasm. Over 200 compounds were routinely measured in tubers, providing a major advance for the chemo-typing of this crop. Core biochemical redundancy concealed trends that were only elucidated following detailed mining of global metabolomics data. Combined analysis on leaf and tuber material identified a subset of metabolites which allow accurate species classification and highlighted the potential of predicting tuber composition from leaf profiles. Metabolic variation was accession-specific and often localised to compound classes, which will aid trait-targeting for metabolite markers. CONCLUSIONS Metabolomics provides a standalone platform with potential to deliver near-future crop gains for yam. The approach compliments the genetic advancements currently underway and integration with other '-omics' studies will deliver a significant advancement to yam breeding strategies.
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Affiliation(s)
- Elliott J. Price
- Royal Holloway University of London, Egham, Surrey, TW20 0EX UK
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW20 3AB UK
| | | | - Antonio Lopez-Montes
- International Institute of Tropical Agriculture, Oyo Road, PMB 5320 Ibadan, Nigeria
| | - Paul D. Fraser
- Royal Holloway University of London, Egham, Surrey, TW20 0EX UK
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