1
|
Rahnama H, Moradi AB, Moradi F, Noormohamadi N. Compositional and Morphological Analysis of Salt Stress Tolerant Mannitol-1-phosphate Dehydrogenase (mtlD)-Transgenic Potato Plants. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2023; 78:670-675. [PMID: 37801204 DOI: 10.1007/s11130-023-01102-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/25/2023] [Indexed: 10/07/2023]
Abstract
Undesired effects often occur in genetically modified (GM) plants, especially during metabolite engineering. Nevertheless, conducting a comparative study between GM and non-GM plants can identify the unintended alterations and facilitate the risk assessment of GM crops. This research compared the morphology and composition of a transgenic potato plant expressing mannitol-1-phosphate dehydrogenase (mtlD), with its non-transgenic counterpart. The results indicated significant differences in plant height, number of leaves, length and width of leaves, as well as tuber number and weight between the transgenic and non-transgenic plants. However, compositional analysis revealed no significant differences in soluble protein, starch, total sugar, fructose, fiber, and ascorbate contents between mtlD-GM and non-GM potatoes. Nevertheless, sucrose and glucose levels were found to be higher in the transgenic potato tubers and leaves, respectively, when compared to the non-transgenic plants. In addition to ammonium, potassium, chloride, nitrite, and nitrate levels, significant differences were observed in the amino acids asparagine, aspartic acid, glutamic acid, isoleucine, leucine, lysine, serine, and valine between the GM and non-GM plants. Apart from the target gene product, mannitol, all the changes in chemical compositions observed in the transgenic potato plants fell within the ranges of normal variability for potato plants. Moreover, despite some phenotypical differences between the mtlD-GM potato and its non-GM counterpart, it is believed that this variation is a common phenomenon among potato varieties. In conclusion, the morphological and compositional analysis of the mtlD-GM potato plant revealed substantial equivalence with its non-transgenic counterpart.
Collapse
Affiliation(s)
- Hassan Rahnama
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.
| | - Amir Bahram Moradi
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran
| | - Foad Moradi
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran
| | - Nafiseh Noormohamadi
- Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran
| |
Collapse
|
2
|
Mdlalose SP, Raletsena M, Ntushelo K, Bodede O, Modise DM. 1H-NMR-Based Metabolomic Study of Potato Cultivars, Markies and Fianna, Exposed to Different Water Regimes. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2022. [DOI: 10.3389/fsufs.2022.801504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study investigated the effects of varying soil moisture conditions (through either flooding, drought, or provision of a moderate water supply) on the metabolomic profile of two potato cultivars, namely, Markies and Fianna. Representative tubers of the treated plants were collected 91 days after planting. The samples were freeze-dried, and ground to a fine powder in liquid nitrogen. The fine powder of the tuber samples was analyzed by nuclear magnetic resonance spectroscopy (NMR) to identify their metabolomic profiles. The NMR data was analyzed using principal component analysis and orthogonal partial least square-discriminant analysis to identify any variations between the treatments. In both models, plants exposed to drought clearly separated from the plants that received either excess or moderate water (control). The potato tubers that experienced drought and flood treatments had the highest quantities of aspartic acid, asparagine, and isoleucine. Furthermore, the potatoes exposed to either drought or flood had higher levels of valine and leucine (which are essential for plant defense and resistance against plant pathogens). Potato plants can respond metabolically to varying soil moisture stress.
Collapse
|
3
|
1H-NMR and LC-MS Based Metabolomics Analysis of Potato ( Solanum tuberosum L.) Cultivars Irrigated with Fly Ash Treated Acid Mine Drainage. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27041187. [PMID: 35208975 PMCID: PMC8877823 DOI: 10.3390/molecules27041187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/28/2022] [Accepted: 01/31/2022] [Indexed: 11/24/2022]
Abstract
1H NMR and LC-MS, commonly used metabolomics analytical platforms, were used to annotate the metabolites found in potato (Solanum tuberosum L.) irrigated with four different treatments based on FA to AMD ratios, namely: control (0% AMD; tap water), 1:1 (50% AMD), 3:1 (75% AMD is 75% FA: AMD), and 100% AMD (untreated). The effects of stress on plants were illustrated by the primary metabolite shifts in the region from δH 0.0 to δH 4.0 and secondary metabolites peaks were prominent in the region ranging from δH 4.5 to δH 8.0. The 1:3 irrigation treatment enabled, in two potato cultivars, the production of significantly high concentrations of secondary metabolites due to the 75% FA: AMD content in the irrigation mixture, which induced stress. The findings suggested that 1:1 irrigation treatment induced production of lower amounts of secondary metabolites in all crops compared to crops irrigated with untreated acid mine drainage treatment and with other FA-treated AMD solutions.
Collapse
|
4
|
do Prado Apparecido R, Barros Lopes TI, Braz Alcantara G. NMR-based foodomics of common tubers and roots. J Pharm Biomed Anal 2021; 209:114527. [PMID: 34906919 DOI: 10.1016/j.jpba.2021.114527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/03/2021] [Accepted: 12/07/2021] [Indexed: 01/20/2023]
Abstract
Common roots and tubers such as arracacha, Asterix potato, cassava, potato, sweet potato, taro, and yam are consumed by millions of people. These foods are an integral part of the diet in developing countries and are nutritionally important as energy reserves due to their carbohydrate content. Although many studies have been performed on these foods, comparative chemical profiles have been still poorly evaluated. In this work, we applied nuclear magnetic resonance (NMR) analysis associated with chemometrics to evaluate the chemical composition of extracts obtained in deuterated water from roots and tubers that are commercially consumed in Brazil and the rest of the world. From the 31 metabolites characterized in the extracts, 22 were quantified. Multivariate analyses showed 8 metabolites which were primary responsible for the distinction between samples, including choline, γ-aminobutyrate (GABA), glutamine, asparagine, isoleucine, fructose, glucose, and sucrose. Thus, our work shows important information on the chemical composition in addition to the mere carbohydrate content of these food matrices. This knowledge can provide information about food safety and beneficial nutritional values of the studied tubers and roots, which can be useful to consumers and the food industry.
Collapse
Affiliation(s)
- Rafael do Prado Apparecido
- Universidade Federal de Mato Grosso do Sul (UFMS), Instituto de Química, CP 549, CEP 79074-460 Campo Grande, MS, Brazil
| | - Thiago Inácio Barros Lopes
- Universidade Federal de Mato Grosso do Sul (UFMS), Instituto de Química, CP 549, CEP 79074-460 Campo Grande, MS, Brazil
| | - Glaucia Braz Alcantara
- Universidade Federal de Mato Grosso do Sul (UFMS), Instituto de Química, CP 549, CEP 79074-460 Campo Grande, MS, Brazil.
| |
Collapse
|
5
|
Emwas AHM, Al-Rifai N, Szczepski K, Alsuhaymi S, Rayyan S, Almahasheer H, Jaremko M, Brennan L, Lachowicz JI. You Are What You Eat: Application of Metabolomics Approaches to Advance Nutrition Research. Foods 2021; 10:1249. [PMID: 34072780 PMCID: PMC8229064 DOI: 10.3390/foods10061249] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 12/17/2022] Open
Abstract
A healthy condition is defined by complex human metabolic pathways that only function properly when fully satisfied by nutritional inputs. Poor nutritional intakes are associated with a number of metabolic diseases, such as diabetes, obesity, atherosclerosis, hypertension, and osteoporosis. In recent years, nutrition science has undergone an extraordinary transformation driven by the development of innovative software and analytical platforms. However, the complexity and variety of the chemical components present in different food types, and the diversity of interactions in the biochemical networks and biological systems, makes nutrition research a complicated field. Metabolomics science is an "-omic", joining proteomics, transcriptomics, and genomics in affording a global understanding of biological systems. In this review, we present the main metabolomics approaches, and highlight the applications and the potential for metabolomics approaches in advancing nutritional food research.
Collapse
Affiliation(s)
- Abdul-Hamid M. Emwas
- Imaging and Characterization Core Lab, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
| | - Nahla Al-Rifai
- Environmental Technology Management (2005-2012), College for Women, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait;
| | - Kacper Szczepski
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (K.S.); (S.A.); (M.J.)
| | - Shuruq Alsuhaymi
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (K.S.); (S.A.); (M.J.)
| | - Saleh Rayyan
- Chemistry Department, Birzeit University, Birzeit 627, Palestine;
| | - Hanan Almahasheer
- Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University (IAU), Dammam 31441-1982, Saudi Arabia;
| | - Mariusz Jaremko
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (K.S.); (S.A.); (M.J.)
| | - Lorraine Brennan
- Institute of Food and Health and Conway Institute, School of Agriculture & Food Science, Dublin 4, Ireland;
| | - Joanna Izabela Lachowicz
- Department of Medical Sciences and Public Health, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy
| |
Collapse
|
6
|
Lalaleo L, Hidalgo D, Valle M, Calero-Cáceres W, Lamuela-Raventós RM, Becerra-Martínez E. Differentiating, evaluating, and classifying three quinoa ecotypes by washing, cooking and germination treatments, using 1H NMR-based metabolomic approach. Food Chem 2020; 331:127351. [DOI: 10.1016/j.foodchem.2020.127351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 06/10/2020] [Accepted: 06/13/2020] [Indexed: 12/11/2022]
|
7
|
Ingallina C, Spano M, Sobolev AP, Esposito C, Santarcangelo C, Baldi A, Daglia M, Mannina L. Characterization of Local Products for Their Industrial Use: The Case of Italian Potato Cultivars Analyzed by Untargeted and Targeted Methodologies. Foods 2020; 9:foods9091216. [PMID: 32887216 PMCID: PMC7555304 DOI: 10.3390/foods9091216] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 08/25/2020] [Accepted: 08/27/2020] [Indexed: 12/03/2022] Open
Abstract
The chemical characterization of local Italian potato cultivars is reported to promote their preservation and use as high quality raw material in food industries. Twenty potato (Solanum tuberosum L.) cultivars from Piedmont and Liguria Italian regions were investigated using NMR (Nuclear Magnetic Resonance) and RP-HPLC-PDA-ESI-MSn (Reversed Phase High-Performance Liquid Chromatography with Photodiode Array Detector and Electrospray Ionization Mass Detector) methodologies. Water soluble and lipophilic metabolites were identified and quantified. With respect to literature data, a more complete 1H (protonic) spectral assignment of the aqueous potato extracts was reported, whereas the 1H NMR assignment of potato organic extracts was reported here for the first time. Phenolics resulted to be in high concentrations in the purple–blue colored Rouge des Flandres, Bergerac, Fleur Bleu, and Blue Star cultivars. Servane, Piatlina, and Malou showed the highest amount of galacturonic acid, a marker of pectin presence, whereas Jelly cultivar was characterized by high levels of monosaccharides. Roseval and Rubra Spes contained high levels of citric acid involved in the inhibition of the enzymatic browning in fresh-cut potato. High levels of the amino acids involved in the formation of pleasant-smell volatile compounds during potato cooking were detected in Rouge des Flandres, Blue Star, Bergerac, Roseval, and Ratte cultivars. These results suggest that each local cultivar is characterized by a proper chemical profile related to specific proprieties that can be useful to obtain high quality industrial products.
Collapse
Affiliation(s)
- Cinzia Ingallina
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (C.I.); (M.S.); (L.M.)
| | - Mattia Spano
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (C.I.); (M.S.); (L.M.)
| | - Anatoly P. Sobolev
- Institute for Biological Systems, Magnetic Resonance Laboratory “Segre-Capitani”, CNR, Via Salaria Km 29.300, 00015 Monterotondo (Rome), Italy
- Correspondence: (A.P.S.); (M.D.); Tel.: +39-06-9067-2385 (A.P.S.); +39-081-678644 (M.D.)
| | - Cristina Esposito
- Department of Pharmacy, University of Naples Federico II, 80138 Naples, Italy; (C.E.); (C.S.)
| | - Cristina Santarcangelo
- Department of Pharmacy, University of Naples Federico II, 80138 Naples, Italy; (C.E.); (C.S.)
| | - Alessandra Baldi
- Tefarco Innova, Parco Area delle Scienze 27/A-Campus, 43124 Parma, Italy;
| | - Maria Daglia
- Department of Pharmacy, University of Naples Federico II, 80138 Naples, Italy; (C.E.); (C.S.)
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
- Correspondence: (A.P.S.); (M.D.); Tel.: +39-06-9067-2385 (A.P.S.); +39-081-678644 (M.D.)
| | - Luisa Mannina
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (C.I.); (M.S.); (L.M.)
| |
Collapse
|
8
|
Fraser PD, Aharoni A, Hall RD, Huang S, Giovannoni JJ, Sonnewald U, Fernie AR. Metabolomics should be deployed in the identification and characterization of gene-edited crops. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 102:897-902. [PMID: 31923321 DOI: 10.1111/tpj.14679] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 12/17/2019] [Accepted: 01/07/2020] [Indexed: 05/23/2023]
Abstract
Gene-editing techniques are currently revolutionizing biology, allowing far greater precision than previous mutagenic and transgenic approaches. They are becoming applicable to a wide range of plant species and biological processes. Gene editing can rapidly improve a range of crop traits, including disease resistance, abiotic stress tolerance, yield, nutritional quality and additional consumer traits. Unlike transgenic approaches, however, it is not facile to forensically detect gene-editing events at the molecular level, as no foreign DNA exists in the elite line. These limitations in molecular detection approaches are likely to focus more attention on the products generated from the technology than on the process in itself. Rapid advances in sequencing and genome assembly increasingly facilitate genome sequencing as a means of characterizing new varieties generated by gene-editing techniques. Nevertheless, subtle edits such as single base changes or small deletions may be difficult to distinguish from normal variation within a genotype. Given these emerging scenarios, downstream 'omics' technologies reflective of edited affects, such as metabolomics, need to be used in a more prominent manner to fully assess compositional changes in novel foodstuffs. To achieve this goal, metabolomics or 'non-targeted metabolite analysis' needs to make significant advances to deliver greater representation across the metabolome. With the emergence of new edited crop varieties, we advocate: (i) concerted efforts in the advancement of 'omics' technologies, such as metabolomics, and (ii) an effort to redress the use of the technology in the regulatory assessment for metabolically engineered biotech crops.
Collapse
Affiliation(s)
- Paul D Fraser
- School of Biological Sciences, Royal Holloway, University of London, Egham Hill, Egham, Surrey, TW20 0EX, UK
| | - Asaph Aharoni
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Robert D Hall
- Wageningen Research, Wageningen University and Research, Droevendaalsesteeg 1, Wageningen, the Netherlands
- Laboratory of Plant Physiology, Wageningen University and Research, Droevendaalsesteeg 1, Wageningen, the Netherlands
- Netherlands Metabolomics Centre, Einsteinweg 55, Leiden, the Netherlands
| | - Sanwen Huang
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518124, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Sino-Dutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100084, China
| | - James J Giovannoni
- USDA-ARS, Robert W. Holley Center and Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, NY, 14853, USA
| | - Uwe Sonnewald
- Department of Biology, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| |
Collapse
|
9
|
Liu J, Liu Y, Wu K, Pan L, Tang ZH. Comparative analysis of metabolite profiles from Panax herbs in specific tissues and cultivation conditions reveals the strategy of accumulation. J Pharm Biomed Anal 2020; 188:113368. [PMID: 32544758 DOI: 10.1016/j.jpba.2020.113368] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 01/08/2023]
Abstract
Panax ginseng is one of the most valuable medicinal plants in the world, and wild-forest (WG) and artificial-forest (AG) ginseng are very popular in the ginseng market, with ginsenosides constituting a majority of the bioactives. Research on the biochemical and physiological patterns of metabolic accumulation in different tissues of ginseng cultivated under various conditions is relatively scarce. We profiled metabolites using GC/MS and LC/MS to explore the bioactive component changes and interrelationships that occur in 7 tissues of WG and AG. In total, 149 primary metabolites and 46 secondary compounds were found in aboveground and belowground tissues. Metabolite changes associated with primary and secondary biochemistry were observed, and the levels of ginsenoside F2 and other compounds showed a significant correlation by statistical analysis in ginseng under both cultivation methods, as observed for secondary compounds and C and N metabolites. In addition, the number of secondary components was higher in the aboveground parts than in the belowground parts, showing a different pattern, and the same accumulation pattern of compounds involved in C and N metabolism was observed in individual plant tissues, but the high rate of photosynthesis and energy metabolism in WG provided energy for the biosynthesis of secondary compounds. Furthermore, artificial neural network models explained the variation in the secondary compounds very well via the combination of several different metabolites from WG and AG. Finally, C and N metabolism plays a key role in secondary compound biosynthesis in specific tissues and cultivation conditions and highlights large-scale metabolite patterns in WG and AG.
Collapse
Affiliation(s)
- Jia Liu
- Key Laboratory of Plant Ecology, Northeast Forestry University, Harbin 150040, China; Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Yang Liu
- Key Laboratory of Plant Ecology, Northeast Forestry University, Harbin 150040, China; School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Kexin Wu
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Liben Pan
- Key Laboratory of Plant Ecology, Northeast Forestry University, Harbin 150040, China; College of Chemistry, Chemical Engineer and Resource Utilization, Northeast Forestry University, Harbin 150040, China
| | - Zhong-Hua Tang
- Key Laboratory of Plant Ecology, Northeast Forestry University, Harbin 150040, China; College of Chemistry, Chemical Engineer and Resource Utilization, Northeast Forestry University, Harbin 150040, China.
| |
Collapse
|
10
|
Datir SS, Yousf S, Sharma S, Kochle M, Ravikumar A, Chugh J. Cold storage reveals distinct metabolic perturbations in processing and non-processing cultivars of potato (Solanum tuberosum L.). Sci Rep 2020; 10:6268. [PMID: 32286457 PMCID: PMC7156394 DOI: 10.1038/s41598-020-63329-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 03/27/2020] [Indexed: 11/09/2022] Open
Abstract
Cold-induced sweetening (CIS) causes considerable losses to the potato processing industry wherein the selection of potato genotypes using biochemical information has found to be advantageous. Here, 1H NMR spectroscopy was performed to identify metabolic perturbations from tubers of five potato cultivars (Atlantic, Frito Lay-1533, Kufri Jyoti, Kufri Pukhraj, and PU1) differing in their CIS ability and processing characteristics at harvest and after cold storage (4 °C). Thirty-nine water-soluble metabolites were detected wherein significantly affected metabolites after cold storage were categorized into sugars, sugar alcohols, amino acids, and organic acids. Multivariate statistical analysis indicated significant differences in the metabolic profiles among the potato cultivars. Pathway enrichment analysis revealed that carbohydrates, amino acids, and organic acids are the key players in CIS. Interestingly, one of the processing cultivars, FL-1533, exhibited a unique combination of metabolites represented by low levels of glucose, fructose, and asparagine accompanied by high citrate levels. Conversely, non-processing cultivars (Kufri Pukhraj and Kufri Jyoti) showed elevated glucose, fructose, and malate levels. Our results indicate that metabolites such as glucose, fructose, sucrose, asparagine, glutamine, citrate, malate, proline, 4-aminobutyrate can be potentially utilized for the prediction, selection, and development of potato cultivars for long-term storage, nutritional, as well as processing attributes.
Collapse
Affiliation(s)
- Sagar S Datir
- Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind, Pune, 411007, India. .,Biology Department, Biosciences Complex, Queen's University, Kingston, Ontario, K7L 3N6, Canada.
| | - Saleem Yousf
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, 411008, India
| | - Shilpy Sharma
- Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind, Pune, 411007, India
| | - Mohit Kochle
- Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind, Pune, 411007, India
| | - Ameeta Ravikumar
- Institute of Bioinformatics and Biotechnology, Savitribai Phule Pune University, Ganeshkhind, Pune, 411007, India
| | - Jeetender Chugh
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, 411008, India. .,Department of Biology, Indian Institute of Science Education and Research, Pune, 411008, India.
| |
Collapse
|
11
|
From morphological traits to the food fingerprint of Tropaeolum tuberosum through metabolomics by NMR. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
12
|
de Oliveira CS, Lião LM, Alcantara GB. Metabolic response of soybean plants to Sclerotinia sclerotiorum infection. PHYTOCHEMISTRY 2019; 167:112099. [PMID: 31476575 DOI: 10.1016/j.phytochem.2019.112099] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 06/27/2019] [Accepted: 08/18/2019] [Indexed: 06/10/2023]
Abstract
White mold is a disease caused by the fungus Sclerotinia sclerotiorum, a highly destructive necrotrophic pathogen that infects soybean crops, among others. Usually, the infection triggers the plant defense system to minimize the damages. However, the effects of the infection on soybean plant metabolism are still unclear. In this work, the metabolic profiles of soybean stems and leaves were accessed using 1H HR-MAS NMR spectroscopy to identify metabolic changes as a response to S. sclerotiorum infection. This fungus widely affects the central metabolism of soybean plants, and most of the altered metabolites are involved in carbon metabolism, as suggested by the results. Furthermore, the metabolites of central metabolism can be associated with the production of several polyphenolic metabolites. Changes in metabolic profile of leaves indicate systemic effects.
Collapse
Affiliation(s)
| | | | - Glaucia Braz Alcantara
- Instituto de Química, Universidade Federal de Mato Grosso do Sul, Campo Grande/MS, Brazil.
| |
Collapse
|
13
|
Rodríguez-Pérez C, Gómez-Caravaca AM, Guerra-Hernández E, Cerretani L, García-Villanova B, Verardo V. Comprehensive metabolite profiling of Solanum tuberosum L. (potato) leaves by HPLC-ESI-QTOF-MS. Food Res Int 2018; 112:390-399. [PMID: 30131151 DOI: 10.1016/j.foodres.2018.06.060] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/19/2018] [Accepted: 06/25/2018] [Indexed: 12/01/2022]
Abstract
The objective of this work was to study the non-targeted metabolite profiling of potato leaves using high performance liquid chromatography coupled to quadrupole-time of flight mass spectrometry (HPLC-ESI-QTOF-MS). The mass accuracy, true isotopic pattern in both MS and MS/MS spectra provided by QTOF-MS made possible the tentative identification of 109 compounds present in potato leaves, including organic acids, amino acids and derivatives, phenolic acids, flavonoids, iridoids, oxylipins and other polar and semi-polar compounds. Among them, 32 compounds have been found for the first time in potato leaf and in the Solanaceae family. Quinic acid and its derivatives represented more than 45% of the bioactive compounds quantified in the extract. Derivatives of hydroxybenzoic acid and gentisic acid were also founded at considerable concentrations. This study shed light on the composition of potato leaf extract and will serve as a base for further research into activities of the various compounds found in this matrix which has demonstrated a potential use as functional ingredients.
Collapse
Affiliation(s)
- Celia Rodríguez-Pérez
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain
| | - Ana María Gómez-Caravaca
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain.
| | - Eduardo Guerra-Hernández
- Department of Nutrition and Food Science, University of Granada, Campus of Cartuja, 18071 Granada, Spain
| | | | - Belen García-Villanova
- Department of Nutrition and Food Science, University of Granada, Campus of Cartuja, 18071 Granada, Spain
| | - Vito Verardo
- Department of Nutrition and Food Science, University of Granada, Campus of Cartuja, 18071 Granada, Spain; Institute of Nutrition and Food Technology 'José Mataix', Biomedical Research Centre, University of Granada, Avenida del Conocimiento s/n, E-18071 Granada, Spain
| |
Collapse
|
14
|
Abstract
Drug metabolites have been monitored with various types of newly developed techniques and/or combination of common analytical methods, which could provide a great deal of information on metabolite profiling. Because it is not easy to analyze whole drug metabolites qualitatively and quantitatively, a single solution of analytical techniques is combined in a multilateral manner to cover the widest range of drug metabolites. Mass-based spectroscopic analysis of drug metabolites has been expanded with the help of other parameter-based methods. The current development of metabolism studies through contemporary pharmaceutical research are reviewed with an overview on conventionally used spectroscopic methods. Several technical approaches for conducting drug metabolic profiling through spectroscopic methods are discussed in depth.
Collapse
Affiliation(s)
- Jong-Jae Yi
- Department of Pharmacy, College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon-Si, Gyeonggi-do, 11160, Republic of Korea
| | - Kyeongsoon Park
- Department of Systems Biotechnology, College of Biotechnology and Natural Resources, Chung-Ang University, 4726 Seodong-daero, Anseong-Si, Gyeonggi-do, 17546, Republic of Korea
| | - Won-Je Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jin-Kyu Rhee
- Department of Food Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Republic of Korea.
| | - Woo Sung Son
- Department of Pharmacy, College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon-Si, Gyeonggi-do, 11160, Republic of Korea.
| |
Collapse
|
15
|
Aisala H, Sinkkonen J, Kalpio M, Sandell M, This H, Hopia A. In situ quantitative 1H nuclear magnetic resonance spectroscopy discriminates between raw and steam cooked potato strips based on their metabolites. Talanta 2016; 161:245-252. [PMID: 27769403 DOI: 10.1016/j.talanta.2016.08.056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 08/15/2016] [Accepted: 08/18/2016] [Indexed: 10/21/2022]
Abstract
A direct quantitative proton nuclear magnetic resonance spectroscopy method was developed for the measurement of saccharides, organic acids and amino acids in potato (Solanum tuberosum L.) tuber filaments, a complex gel-like food matrix. The method requires minimal sample preparation. It is thus a faster alternative compared to liquid sample matrices, as well as an extension to methods analyzing only selected metabolites in the sample. The samples in this study were either raw or steamed potato strips that were either measured as D2O extracts or directly without extraction or derivatization steps (in situ technique). A total of 22 compounds were identified in extracts and 18 in potato strips. Of these, 20 compounds were quantifiable in potato extracts and 13 compounds in potato strips. The effect of thermal processing was reflected in the profile of analyzed compounds. One example was fumaric acid, which was completely lost in steamed samples in both measurement techniques. Additionally, the content of γ-aminobutyric acid in steamed potato strips was lower. In potato extracts, the contents of additional 7 compounds were statistically different. The raw and steamed samples separated into two groups with multivariate models both in extracts and potato strips, and these groups were linked to changes in aforementioned compounds. These results demonstrated that the in situ quantitative 1H NMR technique is a useful tool to analyze potato metabolites. This technique could be further applied to any gel-like complex matrix, meaning that lengthy sample pretreatment could be skipped.
Collapse
Affiliation(s)
- Heikki Aisala
- Food Chemistry and Food Development, Department of Biochemistry, University of Turku, FI-20014 Turku, Finland; Functional Foods Forum, University of Turku, FI 20014 Turku, Finland.
| | - Jari Sinkkonen
- Instrument Centre, Department of Chemistry, University of Turku, Turku, FI-20014 Finland.
| | - Marika Kalpio
- Food Chemistry and Food Development, Department of Biochemistry, University of Turku, FI-20014 Turku, Finland.
| | - Mari Sandell
- Functional Foods Forum, University of Turku, FI 20014 Turku, Finland.
| | - Hervé This
- Groupe de gastronomie moléculaire, Inra-AgroParisTech International Centre for Molecular Gastronomy, Paris, F-75005 France; UMR GENIAL, AgroParisTech, Inra, Université Paris-Saclay, Massy, 91300 France.
| | - Anu Hopia
- Functional Foods Forum, University of Turku, FI 20014 Turku, Finland.
| |
Collapse
|
16
|
Simó C, Ibáñez C, Valdés A, Cifuentes A, García-Cañas V. Metabolomics of genetically modified crops. Int J Mol Sci 2014; 15:18941-66. [PMID: 25334064 PMCID: PMC4227254 DOI: 10.3390/ijms151018941] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 10/08/2014] [Accepted: 10/09/2014] [Indexed: 01/03/2023] Open
Abstract
Metabolomic-based approaches are increasingly applied to analyse genetically modified organisms (GMOs) making it possible to obtain broader and deeper information on the composition of GMOs compared to that obtained from traditional analytical approaches. The combination in metabolomics of advanced analytical methods and bioinformatics tools provides wide chemical compositional data that contributes to corroborate (or not) the substantial equivalence and occurrence of unintended changes resulting from genetic transformation. This review provides insight into recent progress in metabolomics studies on transgenic crops focusing mainly in papers published in the last decade.
Collapse
Affiliation(s)
- Carolina Simó
- Laboratory of Foodomics, Institute of Food Science Research (CIAL), Spanish National Research Council (CSIC), Nicolas Cabrera 9, Cantoblanco Campus, Madrid 28049, Spain.
| | - Clara Ibáñez
- Laboratory of Foodomics, Institute of Food Science Research (CIAL), Spanish National Research Council (CSIC), Nicolas Cabrera 9, Cantoblanco Campus, Madrid 28049, Spain.
| | - Alberto Valdés
- Laboratory of Foodomics, Institute of Food Science Research (CIAL), Spanish National Research Council (CSIC), Nicolas Cabrera 9, Cantoblanco Campus, Madrid 28049, Spain.
| | - Alejandro Cifuentes
- Laboratory of Foodomics, Institute of Food Science Research (CIAL), Spanish National Research Council (CSIC), Nicolas Cabrera 9, Cantoblanco Campus, Madrid 28049, Spain.
| | - Virginia García-Cañas
- Laboratory of Foodomics, Institute of Food Science Research (CIAL), Spanish National Research Council (CSIC), Nicolas Cabrera 9, Cantoblanco Campus, Madrid 28049, Spain.
| |
Collapse
|
17
|
Baniasadi H, Vlahakis C, Hazebroek J, Zhong C, Asiago V. Effect of environment and genotype on commercial maize hybrids using LC/MS-based metabolomics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:1412-22. [PMID: 24479624 DOI: 10.1021/jf404702g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We recently applied gas chromatography coupled to time-of-flight mass spectrometry (GC/TOF-MS) and multivariate statistical analysis to measure biological variation of many metabolites due to environment and genotype in forage and grain samples collected from 50 genetically diverse nongenetically modified (non-GM) DuPont Pioneer commercial maize hybrids grown at six North American locations. In the present study, the metabolome coverage was extended using a core subset of these grain and forage samples employing ultra high pressure liquid chromatography (uHPLC) mass spectrometry (LC/MS). A total of 286 and 857 metabolites were detected in grain and forage samples, respectively, using LC/MS. Multivariate statistical analysis was utilized to compare and correlate the metabolite profiles. Environment had a greater effect on the metabolome than genetic background. The results of this study support and extend previously published insights into the environmental and genetic associated perturbations to the metabolome that are not associated with transgenic modification.
Collapse
Affiliation(s)
- Hamid Baniasadi
- DuPont Pioneer, Analytical & Genomics Technologies, 7300 NW 62nd Avenue, Johnston, Iowa, 50131-1004, United States
| | | | | | | | | |
Collapse
|
18
|
Valdés A, Simó C, Ibáñez C, García-Cañas V. Foodomics strategies for the analysis of transgenic foods. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.05.023] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
19
|
Pacifico D, Casciani L, Ritota M, Mandolino G, Onofri C, Moschella A, Parisi B, Cafiero C, Valentini M. NMR-based metabolomics for organic farming traceability of early potatoes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:11201-11211. [PMID: 24191752 DOI: 10.1021/jf402961m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
(1)H HRMAS-NMR spectroscopy was successfully used to determine the metabolic profiles of 78 tubers obtained from three early genotypes grown under organic and conventional management. The variation in total hydrogen, carbon, and nitrogen contents was also assessed. A PLS-DA multivariate statistical analysis provided good discrimination among the varieties and cropping systems (100% unknown samples placed in a cross-validation blind test), suggesting that this method is a powerful and rapid tool for tracing organic potatoes. As a result of the farming system, the nitrogen content decreased by 11-14% in organic tubers, whereas GABA and lysine accumulated in the organic tubers of all clones. Clear variations in primary metabolites are discussed to provide a better understanding of the metabolic pathway modifications resulting from agronomical practices.
Collapse
Affiliation(s)
- Daniela Pacifico
- Consiglio per la Ricerca e la sperimentazione in Agricoltura - Agricultural Research Council - Research Centre for Industrial crops (CRA-CIN) Via di Corticella 133, 40128 Bologna, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Ricroch AE. Assessment of GE food safety using '-omics' techniques and long-term animal feeding studies. N Biotechnol 2012; 30:349-54. [PMID: 23253614 DOI: 10.1016/j.nbt.2012.12.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Revised: 11/29/2012] [Accepted: 12/03/2012] [Indexed: 12/28/2022]
Abstract
Despite the fact that a thorough, lengthy and costly evaluation of genetically engineered (GE) crop plants (including compositional analysis and toxicological tests) is imposed before marketing some European citizens remain sceptical of the safety of GE food and feed. In this context, are additional tests necessary? If so, what can we learn from them? To address these questions, we examined data from 60 recent high-throughput '-omics' comparisons between GE and non-GE crop lines and 17 recent long-term animal feeding studies (longer than the classical 90-day subchronic toxicological tests), as well as 16 multigenerational studies on animals. The '-omics' comparisons revealed that the genetic modification has less impact on plant gene expression and composition than that of conventional plant breeding. Moreover, environmental factors (such as field location, sampling time, or agricultural practices) have a greater impact than transgenesis. None of these '-omics' profiling studies has raised new safety concerns about GE varieties; neither did the long-term and multigenerational studies on animals. Therefore, there is no need to perform such long-term studies in a case-by-case approach, unless reasonable doubt still exists after conducting a 90-day feeding test. In addition, plant compositional analysis and '-omics' profiling do not indicate that toxicological tests should be mandatory. We discuss what complementary fundamental studies should be performed and how to choose the most efficient experimental design to assess risks associated with new GE traits. The possible need to update the current regulatory framework is discussed.
Collapse
Affiliation(s)
- Agnès E Ricroch
- AgroParisTech, Chair of Evolutionary Genetics and Plant Breeding, 16, rue Claude-Bernard, 75005 Paris, France.
| |
Collapse
|
21
|
Asiago VM, Hazebroek J, Harp T, Zhong C. Effects of genetics and environment on the metabolome of commercial maize hybrids: a multisite study. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:11498-11508. [PMID: 23113862 DOI: 10.1021/jf303873a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This study was designed to elucidate the biological variation in expression of many metabolites due to environment, genotype, or both, and to investigate the potential utility of metabolomics to supplement compositional analysis for substantial equivalence assessments of genetically modified (GM) crops. A total of 654 grain and 695 forage samples from 50 genetically diverse non-GM DuPont Pioneer maize hybrids grown at six locations in the U.S. and Canada were analyzed by coupled gas chromatography time-of-flight-mass spectrometry (GC/TOF-MS). A total of 156 and 185 metabolites were measured in grain and forage samples, respectively. Univariate and multivariate statistical analyses were employed extensively to compare and correlate the metabolite profiles. We show that the environment had far more impact on the forage metabolome compared to the grain metabolome, and the environment affected up to 50% of the metabolites compared to less than 2% by the genetic background. The findings from this study demonstrate that the combination of GC/TOF-MS metabolomics and comprehensive multivariate statistical analysis is a powerful approach to identify the sources of natural variation contributed by the environment and genotype.
Collapse
Affiliation(s)
- Vincent M Asiago
- DuPont Pioneer, Agricultural Biotechnology, Analytical & Genomics Technologies, 7300 NW 62nd Avenue, Johnston, Iowa 50131-1004, USA.
| | | | | | | |
Collapse
|
22
|
Mannina L, Sobolev AP, Viel S. Liquid state 1H high field NMR in food analysis. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2012; 66:1-39. [PMID: 22980032 DOI: 10.1016/j.pnmrs.2012.02.001] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Accepted: 01/27/2012] [Indexed: 05/09/2023]
Affiliation(s)
- Luisa Mannina
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, I-00185 Rome, Italy.
| | | | | |
Collapse
|
23
|
Clausen MR, Bach V, Edelenbos M, Bertram HC. Metabolomics reveals drastic compositional changes during overwintering of Jerusalem artichoke (Helianthus tuberosus L.) tubers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:9495-9501. [PMID: 22900787 DOI: 10.1021/jf302067m] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Metabolic changes were investigated in overwintering Jerusalem artichoke (Helianthus tuberosus L.) tubers using proton nuclear magnetic resonance ((1)H NMR) metabolomics. Three varieties were studied; as a result of overwintering, the amount of inulin was found to decrease in Jerusalem artichoke tubers. This was mainly due to its conversion to sucrose and, at the same time, formation of inulin with a lower degree of polymerization. Major effects on the concentration of citric acid, malic acid, γ-aminobutyric acid (GABA), and adenosine were also found. Intriguingly, malic acid concentration increased and citric acid concentration decreased. These changes, together with an increase in sucrose and GABA concentrations, were ascribed to mobilization of nutrients prior to sprouting, suggesting that malic acid and GABA serve as carbon and nitrogen sources during sprouting of Jerusalem artichokes.
Collapse
Affiliation(s)
- Morten R Clausen
- Department of Food Science, Science and Technology, Aarhus University, Årslev, Denmark.
| | | | | | | |
Collapse
|
24
|
Aliferis KA, Jabaji S. FT-ICR/MS and GC-EI/MS metabolomics networking unravels global potato sprout's responses to Rhizoctonia solani infection. PLoS One 2012; 7:e42576. [PMID: 22880040 PMCID: PMC3411821 DOI: 10.1371/journal.pone.0042576] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 07/09/2012] [Indexed: 01/15/2023] Open
Abstract
The complexity of plant-pathogen interactions makes their dissection a challenging task for metabolomics studies. Here we are reporting on an integrated metabolomics networking approach combining gas chromatography/mass spectrometry (GC/MS) with Fourier transform ion cyclotron resonance/mass spectrometry (FT-ICR/MS) and bioinformatics analyses for the study of interactions in the potato sprout-Rhizoctonia solani pathosystem and the fluctuations in the global metabolome of sprouts. The developed bioanalytical and bioinformatics protocols provided a snapshot of the sprout's global metabolic network and its perturbations as a result of pathogen invasion. Mevalonic acid and deoxy-xylulose pathways were substantially up-regulated leading to the biosynthesis of sesquiterpene alkaloids such as the phytoalexins phytuberin, rishitin, and solavetivone, and steroidal alkaloids having solasodine and solanidine as their common aglycons. Additionally, the perturbation of the sprout's metabolism was depicted in fluctuations of the content of their amino acids pool and that of carboxylic and fatty acids. Components of the systemic acquired resistance (SAR) and hypersensitive reaction (HR) such as azelaic and oxalic acids were detected in increased levels in infected sprouts and strategies of the pathogen to overcome plant defense were proposed. Our metabolic approach has not only greatly expanded the multitude of metabolites previously reported in potato in response to pathogen invasion, but also enabled the identification of bioactive plant-derived metabolites providing valuable information that could be exploited in biotechnology, biomarker-assisted plant breeding, and crop protection for the development of new crop protection agents.
Collapse
Affiliation(s)
| | - Suha Jabaji
- Department of Plant Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| |
Collapse
|
25
|
Corol DI, Ravel C, Raksegi M, Bedo Z, Charmet G, Beale MH, Shewry PR, Ward JL. Effects of genotype and environment on the contents of betaine, choline, and trigonelline in cereal grains. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:5471-5481. [PMID: 22559314 DOI: 10.1021/jf3008794] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This study examined the environmental and genetic variation in methyl donor contents and compositions of 200 cereal genotypes. Glycine betaine, choline, and trigonelline contents were determined by (1)H NMR, and significant differences were observed between cereal types (G) and across harvesting years and growing locations (E). Glycine betaine was the most abundant methyl donor in all of the 200 lines grown on a single site, and concentrations ranged from 0.43 ± 0.09 mg/g dm in oats to 2.57 ± 0.25 mg/g dm in diploid Einkorn varieties. In bread wheat genotypes there was a 3-fold difference in glycine betaine content. Choline contents, in the same lines, were substantially lower, and mean concentrations ranged from 0.17 mg/g dm in oats to 0.27 mg/g dm in durum wheat. Trigonelline was by far the least abundant of the methyl donors studied. Despite this, however, there were large differences between cereal types. Twenty-six wheat genotypes were grown in additional years at four European locations. The average glycine betaine content was highest in grains grown in Hungary and lowest in those grown in the United Kingdom. Across the six environments, there was a 3.8-fold difference in glycine betaine content. Glycine betaine levels, although moderately heritable (0.36), were found to be the most susceptible to the environmental conditions. Free choline concentrations were less variable across genotypes, but heritability of this component was the lowest of all methyl donor components (0.25) and showed a high G × E interaction. Trigonelline showed the most variation due to genotype. Heritability of this metabolite was the highest (0.59), but given that it is at a very low concentration in wheat, it is probably not attractive to plant breeders.
Collapse
Affiliation(s)
- Delia-Irina Corol
- Plant Science Department, Rothamsted Research, West Common, Harpenden Herts AL5 2JQ, United Kingdom
| | | | | | | | | | | | | | | |
Collapse
|
26
|
Zuno-Floriano FG, Miller MG, Aldana-Madrid ML, Hengel MJ, Gaikwad NW, Tolstikov V, Contreras-Cortés AG. Effect of Acinetobacter sp on metalaxyl degradation and metabolite profile of potato seedlings (Solanum tuberosum L.) alpha variety. PLoS One 2012; 7:e31221. [PMID: 22363586 PMCID: PMC3281949 DOI: 10.1371/journal.pone.0031221] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Accepted: 01/04/2012] [Indexed: 11/19/2022] Open
Abstract
One of the most serious diseases in potato cultivars is caused by the pathogen Phytophthora infestans, which affects leaves, stems and tubers. Metalaxyl is a fungicide that protects potato plants from Phytophthora infestans. In Mexico, farmers apply metalaxyl 35 times during the cycle of potato production and the last application is typically 15 days before harvest. There are no records related to the presence of metalaxyl in potato tubers in Mexico. In the present study, we evaluated the effect of Acinetobacter sp on metalaxyl degradation in potato seedlings. The effect of bacteria and metalaxyl on the growth of potato seedlings was also evaluated. A metabolite profile analysis was conducted to determine potential molecular biomarkers produced by potato seedlings in the presence of Acinetobacter sp and metalaxyl. Metalaxyl did not affect the growth of potato seedlings. However, Acinetobacter sp strongly affected the growth of inoculated seedlings, as confirmed by plant length and plant fresh weights which were lower in inoculated potato seedlings (40% and 27%, respectively) compared to the controls. Acinetobacter sp also affected root formation. Inoculated potato seedlings showed a decrease in root formation compared to the controls. LC-MS/MS analysis of metalaxyl residues in potato seedlings suggests that Acinetobacter sp did not degrade metalaxyl. GC–TOF–MS platform was used in metabolic profiling studies. Statistical data analysis and metabolic pathway analysis allowed suggesting the alteration of metabolic pathways by both Acinetobacter sp infection and metalaxyl treatment. Several hundred metabolites were detected, 137 metabolites were identified and 15 metabolic markers were suggested based on statistical change significance found with PLS-DA analysis. These results are important for better understanding the interactions of putative endophytic bacteria and pesticides on plants and their possible effects on plant metabolism.
Collapse
Affiliation(s)
- Fabiola G Zuno-Floriano
- Department of Environmental Toxicology, University of California Davis, Davis, California, United States of America.
| | | | | | | | | | | | | |
Collapse
|
27
|
Heinemann JA, Kurenbach B, Quist D. Molecular profiling--a tool for addressing emerging gaps in the comparative risk assessment of GMOs. ENVIRONMENT INTERNATIONAL 2011; 37:1285-93. [PMID: 21624662 DOI: 10.1016/j.envint.2011.05.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Revised: 04/15/2011] [Accepted: 05/05/2011] [Indexed: 05/20/2023]
Abstract
Assessing the risks of genetically modified organisms (GMOs) is required by both international agreement and domestic legislation. Many view the use of the "omics" tools for profiling classes of molecules as useful in risk assessment, but no consensus has formed on the need or value of these techniques for assessing the risks of all GMOs. In this and many other cases, experts support case-by-case use of molecular profiling techniques for risk assessment. We review the latest research on the applicability and usefulness of molecular profiling techniques for GMO risk assessment. As more and more kinds of GMOs and traits are developed, broader use of molecular profiling in a risk assessment may be required to supplement the comparative approach to risk assessment. The literature-based discussions on the use of profiling appear to have settled on two findings: 1. profiling techniques are reliable and relevant, at least no less so than other techniques used in risk assessment; and 2. although not required routinely, regulators should be aware of when they are needed. The dismissal of routine molecular profiling may be confusing to regulators who then lack guidance on when molecular profiling might be worthwhile. Molecular profiling is an important way to increase confidence in risk assessments if the profiles are properly designed to address relevant risks and are applied at the correct stage of the assessment.
Collapse
Affiliation(s)
- Jack A Heinemann
- School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.
| | | | | |
Collapse
|
28
|
Abstract
The combined factors of financial and food security, a rapidly increasing population and the associated requirement for food generated sustainably in a changing environment have brought food swiftly to the top of most government agendas. The consequence of this is that we need to produce more food at an equivalent or higher quality with lower inputs. These aims are achievable using conventional breeding, but not in the required timelines, and thus state-of-the-art genetic and analytical technologies are coming to the forefront. The concept of metabolomics, underpinned by mainstream (GC–MS, LC–MS, NMR) and specialist (MALDI-TOF-MS) analytical technologies addressing broad chemical (class) targets and dynamic ranges, offers significant potential to add significant value to crop and food science and deliver on future food demands. Metabolomics has now found a home in the food analytical toolbox with raw material quality and safety the major quality areas, although, as we will show, it is translating beyond this into food storage, shelf-life and post-harvest processing.
Collapse
|
29
|
Ricroch AE, Bergé JB, Kuntz M. Evaluation of genetically engineered crops using transcriptomic, proteomic, and metabolomic profiling techniques. PLANT PHYSIOLOGY 2011; 155:1752-61. [PMID: 21350035 PMCID: PMC3091128 DOI: 10.1104/pp.111.173609] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Accepted: 02/17/2011] [Indexed: 05/18/2023]
|
30
|
Simoh S, Linthorst HJM, Lefeber AWM, Erkelens C, Kim HK, Choi YH, Verpoorte R. Metabolic changes of Brassica rapa transformed with a bacterial isochorismate synthase gene. JOURNAL OF PLANT PHYSIOLOGY 2010; 167:1525-32. [PMID: 20705362 DOI: 10.1016/j.jplph.2010.06.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2010] [Revised: 05/31/2010] [Accepted: 06/03/2010] [Indexed: 05/08/2023]
Abstract
Metabolome analysis by 1-dimensional proton nuclear magnetic resonance (¹H NMR) coupled with multivariate data analysis was carried out in Brassica rapa plants transformed with a gene encoding bacterial isochorismate synthase (ICS). Partial least square-discrimination analysis (PLS-DA) on selected signals suggested that the resonances that were dominant in the transgenic plants corresponded to a glucosinolate (neoglucobrassicin), phenylpropanoids (sinapoyl malate, feruloyl malate, caffeoyl malate), organic acids (succinic acid and fumaric acid) and sugars (α- and β-glucose). In contrast, amino acids alanine threonine, valine, leucine were dominant in the untransformed controls. In addition, HPLC data showed that the transgenic plant accumulated salicylic acid (SA) at significantly higher levels than the control plants, whereas the phylloquinone levels were not affected. The results suggest that the expression of the bacterial isochorismate synthase gene in B. rapa does not affect fluxes into pathways to other groups of secondary metabolites through competition for the same precursor. On the contrary, the biosynthesis of isochorismate-derived products (SA) seems to induce the competitive pathways via phenylalanine (phenylpropanoids) and tryptophan (IAA and indole glucosinolates).
Collapse
Affiliation(s)
- Sanimah Simoh
- Division of Pharmacognosy, Section Metabolomics, Institute of Biology, Leiden University, Leiden, The Netherlands
| | | | | | | | | | | | | |
Collapse
|
31
|
Can –omics inform a food safety assessment? Regul Toxicol Pharmacol 2010; 58:S62-70. [DOI: 10.1016/j.yrtph.2010.05.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Accepted: 05/20/2010] [Indexed: 02/06/2023]
|
32
|
|
33
|
Ritota M, Marini F, Sequi P, Valentini M. Metabolomic characterization of Italian sweet pepper (Capsicum annum L.) by means of HRMAS-NMR spectroscopy and multivariate analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:9675-9684. [PMID: 20715777 DOI: 10.1021/jf1015957] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
HRMAS-NMR spectroscopy was used to assess the metabolic profile of sweet pepper (Capsicum Annum L.). One-dimensional and two-dimensional NMR spectra, performed directly on sample pieces of few milligrams, hence without any chemical and/or physical manipulation, allowed the assignment of several compounds. Organic acids, fatty acids, amino acids, and minor compounds such as trigonelline, C4-substituted pyridine, choline, and cinnamic derivatives were observed with a single experiment. A significant discrimination between the two sweet pepper varieties was found by using partial least-squares projections to latent structures discrimination analysis (PLS-DA). The metabolites contributing predominantly to such differentiation were sugars and organic and fatty acids. Also a partial separation according to the geographical origin was obtained always by analyzing the NMR data with PLS-DA. Some of the discriminating molecules are peculiar for pepper and contribute to define the overall commercial and organoleptic quality so that HRMAS-NMR proved to be a complementary analysis to standard tools used in food science and, in principle, can be applied to any foodstuff.
Collapse
Affiliation(s)
- Mena Ritota
- Agricultural Research Council, Research Centre for the Soil-Plant System, Instrumental Centre of Tor Mancina, Strada della Neve Km 1, 00015 Monterotondo, Rome, Italy
| | | | | | | |
Collapse
|
34
|
Metabolome variability in crop plant species--when, where, how much and so what? Regul Toxicol Pharmacol 2010; 58:S54-61. [PMID: 20627114 DOI: 10.1016/j.yrtph.2010.07.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 07/07/2010] [Accepted: 07/07/2010] [Indexed: 01/01/2023]
Abstract
"Omics" technologies provide coverage of gene, protein and metabolite analysis that is unsurpassed compared with traditional targeted approaches. There are a growing number of examples indicating that profiling approaches can be used to expose significant sources of variation in the composition of crop and model plants caused by genetic background, breeding method, growing environment (site, season), genotype × environment interactions and crop cultural practices to name but a few. Whilst breeders have long been aware of such variation from tried and tested targeted analytical approaches, the broad-scale, so called "unbiased" analysis of the metabolome now possible, offers a major upside to our understanding of the true extent of variation in a plethora of metabolites relevant to human and animal health and nutrition. Metabolomics is helping to provide targets for plant breeding by linking gene expression, and allelic variation to variation in metabolite complement (functional genomics), and is also being deployed to better assess the potential impacts of climate change and reduced input agricultural systems on crop composition. This review will provide examples of the factors driving variation in the metabolomes of crop species.
Collapse
|
35
|
Rodriguez-Nogales J, Cifuentes A, Garcia M, Marina M. Improved methodology for the characterisation of transgenic Bt-11 maize cultivars using RP-HPLC profiles of albumin, globulin, prolamin, and glutelin protein fractions and chemometric analysis. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.11.069] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
36
|
Rommens CM. Barriers and paths to market for genetically engineered crops. PLANT BIOTECHNOLOGY JOURNAL 2010; 8:101-111. [PMID: 19968823 DOI: 10.1111/j.1467-7652.2009.00464.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Each year, billions of dollars are invested in efforts to improve crops through genetic engineering (GE). These activities have resulted in a surge of publications and patents on technologies and genes: a momentum in basic research that, unfortunately, is not sustained throughout the subsequent phases of product development. After more than two decades of intensive research, the market for transgenic crops is still dominated by applications of just a handful of methods and genes. This discrepancy between research and development reflects difficulties in understanding and overcoming seven main barriers-to-entry: (1) trait efficacy in the field, (2) critical product concepts, (3) freedom-to-operate, (4) industry support, (5) identity preservation and stewardship, (6) regulatory approval and (7) retail and consumer acceptance. In this review, I describe the various roadblocks to market for transgenic crops and also discuss methods and approaches on how to overcome these, especially in the United States.
Collapse
|
37
|
Ovenden SPB, Gordon BR, Bagas CK, Muir B, Rochfort S, Bourne DJ. A Study of the Metabolome of Ricinus communis for Forensic Applications. Aust J Chem 2010. [DOI: 10.1071/ch09293] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Investigations were undertaken to ascertain the appropriateness of studying the metabolome of Ricinus communis for cultivar and provenance determination. Seeds from 14 R. communis specimens (a total of 56 seeds) collected from the east coast of Australia were analyzed by high pressure liquid chromatography with UV detection (HPLC-UV), liquid chromatography–mass spectrometry (LC-MS), and 1H NMR spectroscopy. The collected data were then analyzed using principle component analysis (PCA). For HPLC-UV analysis, six R. communis specimens were unambiguously identified by PCA as belonging to separate classes relating to specimen. LC-MS data allowed unique ions to be identified for four specimens. Conversely 10 specimens were unambiguously segregated in the PCA of the 1H NMR data. The ratio of ricinine 1 to demethylricinine analogues 2 and 3 was found to be important for specimen determination. These combined analyses suggested that a combination of HPLC-UV and 1H NMR in conjunction with PCA could allow for specimen differentiation.
Collapse
|
38
|
Cevallos-Cevallos JM, Reyes-De-Corcuera JI, Etxeberria E, Danyluk MD, Rodrick GE. Metabolomic analysis in food science: a review. Trends Food Sci Technol 2009. [DOI: 10.1016/j.tifs.2009.07.002] [Citation(s) in RCA: 379] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
39
|
Luján RJ, Capote FP, de Castro MDL. Temporal metabolomic analysis of o-glucoside phenolic compounds and their aglycone forms in olive tree and derived materials. PHYTOCHEMICAL ANALYSIS : PCA 2009; 20:221-230. [PMID: 19291677 DOI: 10.1002/pca.1118] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
INTRODUCTION Maturity is one of the most important factors associated with evaluation of the quality of fruit and vegetables. In olive oil, maturation plays a key role in the kinetics of biosynthetic pathways of the secondary metabolism. One of the most relevant pathways is that catalysed by beta-glucosidases, which are involved in olive oil debittering. Therefore, the knowledge of this influence can be of particular interest for olive oil industry. OBJECTIVE To monitor the profile of O-glucoside phenols and their aglycone forms in olive oil, alperujo (the semisolid residue resulting in the production of olive oil), stones, leaves and branches in order to interpret its evolution according to the sample and the period of the season (October, when olive drupes are green; December, when these drupes are green-purple; and February, when they are mostly black). METHODOLOGY Targeted phenols were extracted by previously optimised methods assisted by auxiliary energies (i.e. ultrasound, microwaves or superheated liquids) according to the characteristics of the sample. The analysis was carried out by liquid chromatography-tandem mass spectrometry with a triple quadrupole mass detector. Highly selective identification and sensitive determination of metabolites was performed in multiple-reaction monitoring mode. Statistical analysis to evaluate differences in the profile of the target compounds was based on principal compounds analysis. RESULTS The evolution of the analytes concentration is strongly related to the role of beta-glucosidases. An explanation for this evolution in olive oil, alperujo and stones is given by relation to the industrial process for olive oil production. For leaves and small branches, the concentration was practically constant over the season, which was foreseeable because of the perennial character of olive trees. Leaves and branches were found to be highly concentrated in O-glucoside derivatives, demonstrating their capacity for phenolic compounds storage. CONCLUSIONS Targeted metabolomic profiling has proved a useful tool to monitor O-glucoside phenolic compounds and their aglycone forms in olive materials. The profile of target compounds enables interpretion of their evolution according to the olive material and the period of the season.
Collapse
Affiliation(s)
- Rafael Japón Luján
- Department of Analytical Chemistry, University of Córdoba, Campus of Rabanales, Annex C-3, 14071 Córdoba, Spain
| | | | | |
Collapse
|
40
|
Batista R, Oliveira MM. Facts and fiction of genetically engineered food. Trends Biotechnol 2009; 27:277-86. [PMID: 19324440 DOI: 10.1016/j.tibtech.2009.01.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2008] [Revised: 01/23/2009] [Accepted: 01/30/2009] [Indexed: 10/21/2022]
Abstract
The generation of genetically engineered (GE) foods has been raising several concerns and controversies that divide not only the general public but also the scientific community. The fear and importance of the new technology, as well as commercial interests, have supported many of the ongoing discussions. The recent increase in the number of GE foods approved for import into the European Union and the increasingly global commercial food trades justify revisiting the facts and fiction surrounding this technology with the aim of increasing public awareness for well-informed decisions. Techniques that have recently become available for assessing food quality and its impact on human health, as well as the wealth of scientific data previously generated, clearly support the safety of commercialized GE products.
Collapse
Affiliation(s)
- Rita Batista
- National Institute of Health, Av. Padre Cruz, 1649-016 Lisboa, Portugal.
| | | |
Collapse
|
41
|
Metabolic profiling of transgenic rice with cryIAc and sck genes: An evaluation of unintended effects at metabolic level by using GC-FID and GC–MS. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:725-32. [DOI: 10.1016/j.jchromb.2009.01.040] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2008] [Revised: 01/29/2009] [Accepted: 01/29/2009] [Indexed: 11/17/2022]
|
42
|
Abstract
Modern 'metabolomic' methods allow us to compare levels of many structurally diverse compounds in an automated fashion across a large number of samples. This technology is ideally suited to screening of populations of plants, including trials where the aim is the determination of unintended effects introduced by GM. A number of metabolomic methods have been devised for the determination of substantial equivalence. We have developed a methodology, using [1H]-NMR fingerprinting, for metabolomic screening of plants and have applied it to the study of substantial equivalence of field-grown GM wheat. We describe here the principles and detail of that protocol as applied to the analysis of flour generated from field plots of wheat. Particular emphasis is given to the downstream data processing and comparison of spectra by multivariate analysis, from which conclusions regarding metabolome changes due to the GM can be assessed against the background of natural variation due to environment.
Collapse
Affiliation(s)
- Michael H Beale
- National Centre for Plant and Microbial Metabolomics, Rothamsted Research, Harpenden, Hertfordshire, UK
| | | | | |
Collapse
|
43
|
Dobson G, Shepherd T, Verrall SR, Conner S, McNicol JW, Ramsay G, Shepherd LVT, Davies HV, Stewart D. Phytochemical diversity in tubers of potato cultivars and landraces using a GC-MS metabolomics approach. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:10280-91. [PMID: 18937493 DOI: 10.1021/jf801370b] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Phytochemical diversity with respect to a range of polar (including amino acids, organic acids, sugars, and sugar alcohols) and nonpolar (including fatty acids, alkanols, and sterols) metabolites was examined within tubers from a total of 29 genetically diverse potato cultivars and Chilean landraces using a metabolomics approach by gas chromatography-mass spectrometry. From principal component analysis of the polar and nonpolar metabolite data there was insufficient variation to differentiate the majority of cultivars and landraces. Analysis of all polar metabolite profiles revealed separation of two cultivars (Glenna and Morag) from the other cultivars and landraces and a separate cluster of one landrace line, largely due to higher levels of sugars. Pentland Javelin was distinct in containing high levels of many amino acids. The two Solanum tuberosum group phureja cultivars (Inca Sun and Mayan Gold) were not particularly similar and were not separated from the S. tuberosum group tuberosum cultivars. Analysis of the nonpolar metabolite data revealed partial separation of two landrace lines and, on the basis of some minor fatty acids, Mayan Gold was distinct. The differences in metabolite profiles are considered in terms of the taxonomy and breeding history of the cultivars and possible influences from other factors such as developmental stage of the tuber. With a view to exploring biosynthetic links between metabolites, a pairwise correlation analysis was performed on all metabolites. The significance of high correlations between many amino acids and between several nonpolar metabolites is discussed.
Collapse
Affiliation(s)
- Gary Dobson
- SCRI, Invergowrie, Dundee DD2 5DA, Scotland, U.K.
| | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Responses of the pea (Pisum sativum L.) leaf metabolome to drought stress assessed by nuclear magnetic resonance spectroscopy. Metabolomics 2008. [PMID: 0 DOI: 10.1007/s11306-008-0128-0] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
45
|
Chao E, Krewski D. A risk-based classification scheme for genetically modified foods. I: Conceptual development. Regul Toxicol Pharmacol 2008; 52:208-22. [PMID: 18778747 DOI: 10.1016/j.yrtph.2008.08.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2008] [Revised: 07/22/2008] [Accepted: 08/13/2008] [Indexed: 11/19/2022]
Abstract
The predominant paradigm for the premarket assessment of genetically modified (GM) foods reflects heightened public concern by focusing on foods modified by recombinant deoxyribonucleic acid (rDNA) techniques, while foods modified by other methods of genetic modification are generally not assessed for safety. To determine whether a GM product requires less or more regulatory oversight and testing, we developed and evaluated a risk-based classification scheme (RBCS) for crop-derived GM foods. The results of this research are presented in three papers. This paper describes the conceptual development of the proposed RBCS that focuses on two categories of adverse health effects: (1) toxic and antinutritional effects, and (2) allergenic effects. The factors that may affect the level of potential health risks of GM foods are identified. For each factor identified, criteria for differentiating health risk potential are developed. The extent to which a GM food satisfies applicable criteria for each factor is rated separately. A concern level for each category of health effects is then determined by aggregating the ratings for the factors using predetermined aggregation rules. An overview of the proposed scheme is presented, as well as the application of the scheme to a hypothetical GM food.
Collapse
Affiliation(s)
- Eunice Chao
- McLaughlin Centre for Population Health Risk Assessment, Institute of Population Health, University of Ottawa, 1 Stewart Street, Ottawa, Ont., Canada KIN 6N5.
| | | |
Collapse
|
46
|
Hagel JM, Weljie AM, Vogel HJ, Facchini PJ. Quantitative 1H nuclear magnetic resonance metabolite profiling as a functional genomics platform to investigate alkaloid biosynthesis in opium poppy. PLANT PHYSIOLOGY 2008; 147:1805-21. [PMID: 18550684 PMCID: PMC2492654 DOI: 10.1104/pp.108.120493] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2008] [Accepted: 06/05/2008] [Indexed: 05/18/2023]
Abstract
Opium poppy (Papaver somniferum) produces a diverse array of bioactive benzylisoquinoline alkaloids and has emerged as a versatile model system to study plant alkaloid metabolism. The plant is widely cultivated as the only commercial source of the narcotic analgesics morphine and codeine. Variations in plant secondary metabolism as a result of genetic diversity are often associated with perturbations in other metabolic pathways. As part of a functional genomics platform, we used (1)H nuclear magnetic resonance (NMR) metabolite profiling for the analysis of primary and secondary metabolism in opium poppy. Aqueous and chloroform extracts of six different opium poppy cultivars were subjected to chemometric analysis. Principle component analysis of the (1)H NMR spectra for latex extracts clearly distinguished two varieties, including a low-alkaloid variety and a high-thebaine, low-morphine cultivar. Distinction was also made between pharmaceutical-grade opium poppy cultivars and a condiment variety. Such phenotypic differences were not observed in root extracts. Loading plots confirmed that morphinan alkaloids contributed predominantly to the variance in latex extracts. Quantification of 34 root and 21 latex metabolites, performed using Chenomx NMR Suite version 4.6, showed major differences in the accumulation of specific alkaloids in the latex of the low-alkaloid and high-thebaine, low-morphine varieties. Relatively few differences were found in the levels of other metabolites, indicating that the variation was specific for alkaloid metabolism. Exceptions in the low-alkaloid cultivar included an increased accumulation of the alkaloid precursor tyramine and reduced levels of sucrose, some amino acids, and malate. Real-time polymerase chain reaction analysis of 42 genes involved in primary and secondary metabolism showed differential gene expression mainly associated with alkaloid biosynthesis. Reduced alkaloid levels in the condiment variety were associated with the reduced abundance of transcripts encoding several alkaloid biosynthetic enzymes.
Collapse
Affiliation(s)
- Jillian M Hagel
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada T2N 1N4
| | | | | | | |
Collapse
|
47
|
Im HW, Suh BS, Lee SU, Kozukue N, Ohnisi-Kameyama M, Levin CE, Friedman M. Analysis of phenolic compounds by high-performance liquid chromatography and liquid chromatography/mass spectrometry in potato plant flowers, leaves, stems, and tubers and in home-processed potatoes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:3341-3349. [PMID: 18386928 DOI: 10.1021/jf073476b] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Potato plants synthesize phenolic compounds as protection against bruising and injury from bacteria, fungi, viruses, and insects. Because antioxidative phenolic compounds are also reported to participate in enzymatic browning reactions and to exhibit health-promoting effects in humans, a need exists for accurate methods to measure their content in fresh and processed potatoes. To contribute to our knowledge about the levels of phenolic compounds in potatoes, we validated and used high-performance liquid chromatography and liquid chromatography/mass spectrometry to measure levels of chlorogenic acid, a chlorogenic isomer, and caffeic acid in flowers, leaves, stems, and tubers of the potato plant and in home-processed potatoes. The total phenolic acid content of flowers (626 mg/100 g fresh wt) was 21 and 59 times greater than that of leaves and stems, respectively. For all samples, chlorogenic acid and its isomer contributed 96-98% to the total. Total phenolic acid levels (in g/100 g fresh wt) of peels of five potato varieties grown in Korea ranged from 6.5 to 42.1 and of the flesh (pulp) from 0.5 to 16.5, with peel/pulp ratios ranging from 2.6 to 21.1. The total phenolic acid content for 25 American potatoes ranged from 1.0 to 172. The highest amounts were present in red and purple potatoes. Home processing of pulp with various forms of heat induced reductions in the phenolic content. The described methodology should facilitate future studies on the role of potato phenolic compounds in the plant and the diet.
Collapse
Affiliation(s)
- Hyon Woon Im
- Department of Food Service Industry, Uiduk University, 780-713, Gangdong, Gyeongju, Gyongbuk, Korea
| | | | | | | | | | | | | |
Collapse
|
48
|
Ainasoja MM, Pohjala LL, Tammela PSM, Somervuo PJ, Vuorela PM, Teeri TH. Comparison of transgenic Gerbera hybrida lines and traditional varieties shows no differences in cytotoxicity or metabolic fingerprints. Transgenic Res 2008; 17:793-803. [DOI: 10.1007/s11248-008-9165-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2007] [Accepted: 01/02/2008] [Indexed: 10/22/2022]
|
49
|
Rommens CM, Haring MA, Swords K, Davies HV, Belknap WR. The intragenic approach as a new extension to traditional plant breeding. TRENDS IN PLANT SCIENCE 2007; 12:397-403. [PMID: 17692557 DOI: 10.1016/j.tplants.2007.08.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2007] [Revised: 05/21/2007] [Accepted: 08/01/2007] [Indexed: 05/16/2023]
Abstract
The novel intragenic approach to genetic engineering improves existing varieties by eliminating undesirable features and activating dormant traits. It transforms plants with native expression cassettes to fine-tune the activity and/or tissue specificity of target genes. Any intragenic modification of traits could, at least in theory, also be accomplished by traditional breeding and transgenic modification. However, the new approach is unique in avoiding the transfer of unknown or foreign DNA. By consequently eliminating various potential risk factors, this method represents a relatively safe approach to crop improvement. Therefore, we argue that intragenic crops should be cleared through the regulatory process in a timely and cost-effective manner.
Collapse
Affiliation(s)
- Caius M Rommens
- Simplot Plant Sciences, J. R. Simplot Company, Boise, ID 83706, USA.
| | | | | | | | | |
Collapse
|
50
|
|