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Neera, Murali HS. Development and evaluation of multiplex PCR for detection of T-2 and zearalenone producing Fusarium spp. Lett Appl Microbiol 2021; 73:363-371. [PMID: 34101222 DOI: 10.1111/lam.13522] [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: 01/21/2021] [Revised: 03/26/2021] [Accepted: 05/26/2021] [Indexed: 11/28/2022]
Abstract
The study aimed to develop and evaluate a multiplex polymerase chain reaction assay (mPCR) for the concurrent detection of three major mycotoxin metabolic pathway genes, namely tri8 (T-2 toxin), tri6 (trichothecene) and pks4 (zearalenone), along with competitive internal amplification control. Specific primers for each of the aforementioned genes were optimized and validated using 14 reference strains and 10 pure culture isolates. The optimized mPCR assay detected the three metabolic pathway genes in artificially contaminated maize samples with a sensitivity of 2 × 103 CFU per g for tri6 and pks4 positive Fusarium strains, whereas 2 × 104 CFU per g for tri8 positive Fusarium strains. Application of the developed mPCR assay to 30 cereal and 20 feed samples revealed 24% (12 of 50) contamination with either one or more mycotoxins. The results of mPCR assay were further evaluated with high performance liquid chromatography (HPLC), and both methods provided unequivocal results. This mPCR assay might be a supplementary tool to conventional mycotoxin analytical techniques like thin-layer chromatography, HPLC, etc. The current mPCR assay is a rapid and reliable tool for simultaneous, sensitive and specific detection of T-2, zearalenone and trichothecene producing Fusarium spp. from naturally contaminated foods and to monitor them during the processing steps of food and feed commodities.
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Affiliation(s)
- Neera
- Food Biotechnology Division, Defence Food Research Laboratory, Mysore, India
| | - H S Murali
- Food Biotechnology Division, Defence Food Research Laboratory, Mysore, India
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Faccenda A, Zambom MA, Avila AS, Castagnara DD, Dri R, Fischer ML, Tinini RCR, Dessbesell JG, Almeida ARE, Almeida KV. Influence of the storage period on the nutritional and microbiological value of sun-dried brewer’s grains. REV COLOMB CIENC PEC 2020. [DOI: 10.17533/udea.rccp.v34n4a02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: Brewer's grains, a by-product of the brewery industry, can be included in the diet of ruminants. However, its high humidity makes it difficult to store and preserve. Objective: To evaluate the efficiency of sun dehydration of wet brewer’s grains (WBG) and the effect of storage period on its nutritional and microbiological quality. Methods: A completely randomized experimental design was used to evaluate WBG dehydration efficiency, with treatments corresponding to 0, 1, 2, 4, 6, 8, 10, 12, 14 and 16 hours of sun exposure. A second experiment was carried out using also a completely randomized design to evaluated the effect of storage with the following treatments: 0, 10, 20, 30, 60, 90, 120, 150 and 180 days of storage of the dry by-product. Results: Dry matter (DM) content linearly increased with dehydration period. The chemical composition of the dried brewer's grains had no effect as a function of storage period. Indigestible protein (C fraction) increased linearly but did not compromise the cumulative gas production and the in vitro digestibility of DM and protein. Storage time had no effect on fungus population. The maximum aflatoxin value was 45.5 μg/kg, and remained within acceptable limits for bovine feed. Conclusion: Dehydration of WBG in the sun is efficient to guarantee conservation and makes it possible to store the by-product. The storage of the dry by-product for 180 days does not compromise its nutritional or microbiological quality.
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Morcia C, Tumino G, Gasparo G, Ceresoli C, Fattorini C, Ghizzoni R, Carnevali P, Terzi V. Moving from qPCR to Chip Digital PCR Assays for Tracking of some Fusarium Species Causing Fusarium Head Blight in Cereals. Microorganisms 2020; 8:E1307. [PMID: 32867286 PMCID: PMC7564955 DOI: 10.3390/microorganisms8091307] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/23/2020] [Accepted: 08/26/2020] [Indexed: 01/08/2023] Open
Abstract
Fusarium Head Blight (FHB) is one of the major diseases affecting small-grain cereals, worldwide spread and responsible for severe yield and quality losses annually. Diagnostic tools, able to track Fusarium species even in the early stages of infection, can contribute to mycotoxins' risk control. Among DNA-based technologies for Fusarium detection, qPCR (single and multiplex assays) is currently the most applied method. However, pathogen diagnostics is now enforced by digital PCR (dPCR), a breakthrough technology that provides ultrasensitive and absolute nucleic acid quantification. In our work, a panel of chip digital PCR assays was developed to quantify Fusarium graminearum, F.culmorum, F. sporotrichioides, F. poae and F. avenaceum. The primers/probes combinations were evaluated on pure fungal samples with cdPCR technique, in comparison with the qPCR approach. Moreover, the cdPCR assays were applied to quantify Fusarium in durum wheat and oat samples, naturally contaminated or spiked with fungal DNA. For a better evaluation of infection level in plants, duplex assays were developed, able to co-amplify both plant and fungal DNA. To the best of our knowledge, this is the first study directed to the application of digital PCR to Fusarium diagnosis in plants.
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Affiliation(s)
- Caterina Morcia
- Council for Agricultural Research and Economics, Research Centre for Genomics and Bioinformatics, I-29017 Fiorenzuola d’Arda PC, Italy; (C.M.); (G.T.); (G.G.); (C.C.); (C.F.); (R.G.)
| | - Giorgio Tumino
- Council for Agricultural Research and Economics, Research Centre for Genomics and Bioinformatics, I-29017 Fiorenzuola d’Arda PC, Italy; (C.M.); (G.T.); (G.G.); (C.C.); (C.F.); (R.G.)
| | - Giulia Gasparo
- Council for Agricultural Research and Economics, Research Centre for Genomics and Bioinformatics, I-29017 Fiorenzuola d’Arda PC, Italy; (C.M.); (G.T.); (G.G.); (C.C.); (C.F.); (R.G.)
| | - Caterina Ceresoli
- Council for Agricultural Research and Economics, Research Centre for Genomics and Bioinformatics, I-29017 Fiorenzuola d’Arda PC, Italy; (C.M.); (G.T.); (G.G.); (C.C.); (C.F.); (R.G.)
| | - Chiara Fattorini
- Council for Agricultural Research and Economics, Research Centre for Genomics and Bioinformatics, I-29017 Fiorenzuola d’Arda PC, Italy; (C.M.); (G.T.); (G.G.); (C.C.); (C.F.); (R.G.)
| | - Roberta Ghizzoni
- Council for Agricultural Research and Economics, Research Centre for Genomics and Bioinformatics, I-29017 Fiorenzuola d’Arda PC, Italy; (C.M.); (G.T.); (G.G.); (C.C.); (C.F.); (R.G.)
| | | | - Valeria Terzi
- Council for Agricultural Research and Economics, Research Centre for Genomics and Bioinformatics, I-29017 Fiorenzuola d’Arda PC, Italy; (C.M.); (G.T.); (G.G.); (C.C.); (C.F.); (R.G.)
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Wan J, Jin Z, Zhong S, Schwarz P, Chen B, Rao J. Clove oil-in-water nanoemulsion: Mitigates growth of Fusarium graminearum and trichothecene mycotoxin production during the malting of Fusarium infected barley. Food Chem 2019; 312:126120. [PMID: 31901827 DOI: 10.1016/j.foodchem.2019.126120] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 12/18/2019] [Accepted: 12/23/2019] [Indexed: 01/12/2023]
Abstract
Fusarium mycotoxin contamination in malting barley is of great concerns in malting industry. Our recent study found that clove oil nanoemulsions can act as highly efficient antifungal agents in vitro. Therefore, we explored the efficacy of clove oil nanoemulsions on Fusarium growth and mycotoxin during malting process. The impact of emulsifier types (Tween 80, BSA and quillaja saponins) on the formation of clove oil nanoemulsion, the mitigation effects on mycotoxin levels and fungal biomass, and the clove oil flavor residues on malts were measured. We observed that 1.5 mg clove oil/g nanoemulsion showed a negligible influence on germinative energy of barley, while still efficiently eliminated the DON levels and toxicogenic fungal biomass as quantified by Tri5 DNA content. Tween 80-stablized clove oil nanoemulsion displayed higher mycotoxin inhibitory activity and less flavor impact on the final malt. The results indicated the potential application of essential oil nanoemulsion during the malting process.
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Affiliation(s)
- Jing Wan
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, United States
| | - Zhao Jin
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, United States
| | - Shaobin Zhong
- Department of Plant Pathology, North Dakota State University, Fargo, ND 58108, United States
| | - Paul Schwarz
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, United States
| | - Bingcan Chen
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, United States
| | - Jiajia Rao
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, United States.
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Germeier CU, Unger S. Modeling Crop Genetic Resources Phenotyping Information Systems. FRONTIERS IN PLANT SCIENCE 2019; 10:728. [PMID: 31281323 PMCID: PMC6597887 DOI: 10.3389/fpls.2019.00728] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 05/16/2019] [Indexed: 05/26/2023]
Abstract
Documentation of phenotype information is a priority need in biodiversity, crop modeling, breeding, ecology, and evolution research, for association studies, gene discovery, retrospective statistical analysis and data mining, QTL re-mapping, choosing cultivars, and planning crosses. Lack of access to phenotype information is still seen as a limiting factor for the use of plant genetic resources. Phenotype data are complex. Information on the context, under which they were collected, is indispensable, and the domain is continuously evolving. This study describes comprehensive data and object models supporting web interfaces for multi-site field phenotyping and data acquisition, which have been developed for Central Crop Databases within the European Cooperative Programme for Plant Genetic Resources over the years and which can be used as blueprints for phenotyping information systems. We start from the hypothesis, that entity relationship and object models useful for software development can picture domain expertise, similar as domain ontologies, and encourage a discussion of scientific information systems on modeling level. Starting from information requirements for statistical analysis, meta-analysis, and knowledge discovery, models are discussed in consideration of several standardization and modeling approaches including crop ontologies. Following an object-oriented modeling approach, we keep data and object models close together and to domain concepts. This will make database and software design better understandable and usable for domain experts and support a modular use of software artifacts to be shared across various domains of expertise. Classes and entities represent domain concepts with attributes naturally assigned to them. Field experiments with randomized plots, as typically used in the evaluation of plant genetic resources and in plant breeding, are in the focus. Phenotype observations, which can be listed as raw or aggregated data, are linked to explanatory metadata describing experimental treatments and agronomic interventions, observed traits and observation methodology, field plan and plot design, and the experiment site as a geographical entity. Based on clearly defined types, potential links to information systems in other domains (e.g., geographic information systems) can be better identified. Work flows are shown as web applications for the generation of field plans, field books, templates, upload of spreadsheet data, and images.
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Affiliation(s)
- Christoph U. Germeier
- Institute for Breeding Research on Agricultural Crops, Julius Kühn Institute, Federal Research Centre for Cultivated Plants, Quedlinburg, Germany
| | - Stefan Unger
- Data Processing Department, Julius Kühn Institute, Federal Research Centre for Cultivated Plants, Quedlinburg, Germany
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Lulamba TE, Stafford RA, Njobeh PB. A sub-Saharan African perspective on mycotoxins in beer - a review. JOURNAL OF THE INSTITUTE OF BREWING 2019. [DOI: 10.1002/jib.558] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Tshikala Eddie Lulamba
- Department of Biotechnology and Food Technology, Faculty of Science; University of Johannesburg; Doornfontein Campus, CnrSiemert & Beit Streets, 2028 Johannesburg - New Doornfontein Johannesburg South Africa
| | - Robert A. Stafford
- Department of Biotechnology and Food Technology, Faculty of Science; University of Johannesburg; Doornfontein Campus, CnrSiemert & Beit Streets, 2028 Johannesburg - New Doornfontein Johannesburg South Africa
| | - Patrick Berka Njobeh
- Department of Biotechnology and Food Technology, Faculty of Science; University of Johannesburg; Doornfontein Campus, CnrSiemert & Beit Streets, 2028 Johannesburg - New Doornfontein Johannesburg South Africa
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Ponce-García N, Serna-Saldivar SO, Garcia-Lara S. Fumonisins and their analogues in contaminated corn and its processed foods - a review. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2018; 35:2183-2203. [PMID: 30028638 DOI: 10.1080/19440049.2018.1502476] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
One of the food security problems faced worldwide is the occurrence of mycotoxins in grains and their foods. Fumonisins (FBs) are mycotoxins which are prevalent in corn (Zea mays L.) and its based foods. Their intake and exposure have been epidemiologically and inconclusively associated with oesophageal cancer and neural tube defects in humans, and other harmful health effects in animals. The toxic effects of FBs can be acute or chronic and these metabolites bioaccumulate mainly in liver and kidney tissues. Among FBs, fumonisin B1 (FB1) is the most relevant moiety although the 'hidden' forms produced after food thermal processes are becoming relevant. Corn is the grain most susceptible to Fusarium and FBs contamination and the mould growth is affected both by abiotic and biotic factors during grain maturation and storage. Mould counts are mainly affected by the grain water activity, the environmental temperature during grain maturation and insect damage. The abiotic factors affected by climatic change patterns have increased their incidence in other regions of the world. Among FBs, the hidden forms are the most difficult to detect and quantify. Single or combined physical, chemical and biological methods are emerging to significantly reduce FBs in processed foods and therefore diminish their toxicological effects.
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Affiliation(s)
- Nestor Ponce-García
- a Center of Biotechnology FEMSA , School of Engineering and Sciences, Tecnologico de Monterrey , Monterrey , Mexico.,b Faculty of Agricultural Sciences , Autonomous University of Mexico State, UAEM, Campus Universitario "El Cerrillo" , Toluca , Mexico
| | - Sergio O Serna-Saldivar
- a Center of Biotechnology FEMSA , School of Engineering and Sciences, Tecnologico de Monterrey , Monterrey , Mexico
| | - Silverio Garcia-Lara
- a Center of Biotechnology FEMSA , School of Engineering and Sciences, Tecnologico de Monterrey , Monterrey , Mexico
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Manstretta V, Morcia C, Terzi V, Rossi V. Germination of Fusarium graminearum Ascospores and Wheat Infection are Affected by Dry Periods and by Temperature and Humidity During Dry Periods. PHYTOPATHOLOGY 2016; 106:262-269. [PMID: 26623994 DOI: 10.1094/phyto-05-15-0118-r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The effects of temperature and relative humidity (RH) on germination of Fusarium graminearum ascospores, and of dry periods (DP) of different lengths and of temperature and RH during DP on ascospore survival were studied both in vitro and in planta. Optimal temperatures for ascospore germination at 100% RH were 20 and 25°C; germination was ≤5% when ascospores were incubated at 20°C and RH ≤ 93.5%. Viable ascospores were found at all tested combinations of DP duration (0 to 48 h) × temperature (5 to 40°C) or RH (32.5 to 100% RH). Germination declined as DP duration and temperature increased. Germination was lower for ascospores kept at 65.5% RH during the DP than at 76.0, 32.5, or 93.5% RH. Equations were developed describing the relationships between ascospore germination, DP duration and temperature or RH during DP. Durum wheat spikes were inoculated with ascospores and kept dry for 0 to 48 h at approximately 15°C and 65% RH; plants were then kept in saturated atmosphere for 48 h to favor infection. Fungal biomass, measured as F. graminearum DNA by quantitative polymerase chain reaction, declined as DP increased to 24 and 48 h at 3 and 9 days postinfection but not in spikes at maturity.
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Affiliation(s)
- V Manstretta
- First, second, and fourth authors: DI.PRO.VE.S. Department of Sustainable Crop Production, Università Cattolica del Sacro Cuore, Piacenza, Italy; and second and third authors: CRA-GPG, Council for Agricultural Research and Economics, Genomics Research Centre, Fiorenzuola d'Arda (PC), Italy
| | - C Morcia
- First, second, and fourth authors: DI.PRO.VE.S. Department of Sustainable Crop Production, Università Cattolica del Sacro Cuore, Piacenza, Italy; and second and third authors: CRA-GPG, Council for Agricultural Research and Economics, Genomics Research Centre, Fiorenzuola d'Arda (PC), Italy
| | - V Terzi
- First, second, and fourth authors: DI.PRO.VE.S. Department of Sustainable Crop Production, Università Cattolica del Sacro Cuore, Piacenza, Italy; and second and third authors: CRA-GPG, Council for Agricultural Research and Economics, Genomics Research Centre, Fiorenzuola d'Arda (PC), Italy
| | - V Rossi
- First, second, and fourth authors: DI.PRO.VE.S. Department of Sustainable Crop Production, Università Cattolica del Sacro Cuore, Piacenza, Italy; and second and third authors: CRA-GPG, Council for Agricultural Research and Economics, Genomics Research Centre, Fiorenzuola d'Arda (PC), Italy
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Kulik T, Ostrowska A, Buśko M, Pasquali M, Beyer M, Stenglein S, Załuski D, Sawicki J, Treder K, Perkowski J. Development of an FgMito assay: A highly sensitive mitochondrial based qPCR assay for quantification of Fusarium graminearum sensu stricto. Int J Food Microbiol 2015; 210:16-23. [DOI: 10.1016/j.ijfoodmicro.2015.06.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 05/29/2015] [Accepted: 06/11/2015] [Indexed: 11/26/2022]
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Aydın AA, Ilberg V, Titze J. Investigation of overfoaming activities and gushing mechanisms of individual beer ingredients as model substances in bottled carbonated water. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2014; 94:2083-2089. [PMID: 24338803 DOI: 10.1002/jsfa.6528] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 12/02/2013] [Accepted: 12/12/2013] [Indexed: 06/03/2023]
Abstract
BACKGROUND Researchers in several disciplines are interested in understanding the spontaneous and eruptive overfoaming (gushing) of carbonated beverages, as it is an essential problem of both the brewing and beverage industries. In order to understand the mechanism(s) taking place in gushing beer, several beer ingredients have been investigated as model substances in a much simpler matrix of carbonated water. For this purpose, sinapic acid, vanillic acid, ferulic acid, cinnamic acid and palmitic acid have been chosen as model beer ingredients. RESULTS Gushing formation of the investigated beer ingredients depends on the degree of stabilized solvated molecular carbon dioxide in water. For this purpose, functional groups capable of forming hydrogen bonds with electronegative oxygen atoms of carbon dioxide are needed. However, the solubility of the substances plays an important role in the abundance of these functional groups in undissociated form to interact with molecular carbon dioxide. CONCLUSION The reported data provide valuable insights into the gushing problem and help to understand its formation pathways. Each gushing-positive substance has an individual mechanism related to its structural conformation and solubility level. Therefore possible gushing mechanisms have been proposed with respect to the structural changes in model substances to clarify the differences in observed overfoaming and gushing stability levels.
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Affiliation(s)
- Ahmet Alper Aydın
- Faculty of Gardening and Food Technology, University of Applied Sciences Weihenstephan-Triesdorf, Am Staudengarten 11, D-85350, Freising, Germany
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Terzi V, Tumino G, Stanca AM, Morcia C. Reducing the incidence of cereal head infection and mycotoxins in small grain cereal species. J Cereal Sci 2014. [DOI: 10.1016/j.jcs.2013.10.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Foroud NA, Chatterton S, Reid LM, Turkington TK, Tittlemier SA, Gräfenhan T. Fusarium Diseases of Canadian Grain Crops: Impact and Disease Management Strategies. Fungal Biol 2014. [DOI: 10.1007/978-1-4939-1188-2_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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