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Beccari G, Tini F, Foroud NA, Ederli L, Gardiner DM, Benfield AH, Harris LJ, Sulyok M, Romani R, Bellezza I, Covarelli L. A comparison between the role of enniatins and deoxynivalenol in Fusarium virulence on different tissues of common wheat. BMC PLANT BIOLOGY 2024; 24:463. [PMID: 38802782 PMCID: PMC11129500 DOI: 10.1186/s12870-024-04945-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/26/2024] [Indexed: 05/29/2024]
Abstract
BACKGROUND Fusarium graminearum and Fusarium avenaceum are two of the most important causal agents of Fusarium head blight (FHB) of wheat. They can produce mycotoxins that accumulate in infected wheat heads, including deoxynivalenol (DON) and enniatins (ENNs), produced by F. graminearum and F. avenaceum, respectively. While the role of DON as a virulence factor in F. graminearum toward wheat is well known, ENNs in F. avenaceum has been poorly explored. Results obtained to-date indicate that ENNs may confer an advantage to F. avenaceum only on particular hosts. RESULTS In this study, with the use of ENN-producing and ENN non-producing F. avenaceum strains, the role of ENNs on F. avenaceum virulence was investigated on the root, stem base and head of common wheat, and compared with the role of DON, using DON-producing and DON non-producing F. graminearum strains. The DON-producing F. graminearum strain showed a significantly higher ability to cause symptoms and colonise each of the tested tissues than the non-producing strain. On the other hand, the ability to produce ENNs increased initial symptoms of the disease and fungal biomass accumulation, measured by qPCR, only in wheat heads, and not in roots or stem bases. LC-MS/MS analysis was used to confirm the presence of ENNs and DON in the different strains, and results, both in vitro and in wheat heads, were consistent with the genetics of each strain. CONCLUSION While the key role of DON on F. graminearum virulence towards three different wheat tissues was noticeable, ENNs seemed to have a role only in influencing F. avenaceum virulence on common wheat heads probably due to an initial delay in the appearance of symptoms.
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Affiliation(s)
- Giovanni Beccari
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Francesco Tini
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy.
| | - Nora A Foroud
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, Canada
| | - Luisa Ederli
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | | | - Aurelie H Benfield
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Translational Research Institute, Brisbane, Australia
| | - Linda J Harris
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, Canada
| | - Michael Sulyok
- Department of Agrobiotechnology (IFA-Tulln), Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences, Vienna, Tulln, Austria
| | - Roberto Romani
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Ilaria Bellezza
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Lorenzo Covarelli
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
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Dussarrat T, Schweiger R, Ziaja D, Nguyen TTN, Krause L, Jakobs R, Eilers EJ, Müller C. Influences of chemotype and parental genotype on metabolic fingerprints of tansy plants uncovered by predictive metabolomics. Sci Rep 2023; 13:11645. [PMID: 37468576 DOI: 10.1038/s41598-023-38790-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 07/14/2023] [Indexed: 07/21/2023] Open
Abstract
Intraspecific plant chemodiversity shapes plant-environment interactions. Within species, chemotypes can be defined according to variation in dominant specialised metabolites belonging to certain classes. Different ecological functions could be assigned to these distinct chemotypes. However, the roles of other metabolic variation and the parental origin (or genotype) of the chemotypes remain poorly explored. Here, we first compared the capacity of terpenoid profiles and metabolic fingerprints to distinguish five chemotypes of common tansy (Tanacetum vulgare) and depict metabolic differences. Metabolic fingerprints captured higher variation in metabolites while preserving the ability to define chemotypes. These differences might influence plant performance and interactions with the environment. Next, to characterise the influence of the maternal origin on chemodiversity, we performed variation partitioning and generalised linear modelling. Our findings revealed that maternal origin was a higher source of chemical variation than chemotype. Predictive metabolomics unveiled 184 markers predicting maternal origin with 89% accuracy. These markers included, among others, phenolics, whose functions in plant-environment interactions are well established. Hence, these findings place parental genotype at the forefront of intraspecific chemodiversity. We recommend considering this factor when comparing the ecology of various chemotypes. Additionally, the combined inclusion of inherited variation in main terpenoids and other metabolites in computational models may help connect chemodiversity and evolutionary principles.
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Affiliation(s)
- Thomas Dussarrat
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany.
| | - Rabea Schweiger
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
| | - Dominik Ziaja
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
| | - Thuan T N Nguyen
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
| | - Liv Krause
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
| | - Ruth Jakobs
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
| | - Elisabeth J Eilers
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
- CTL GmbH Bielefeld, Krackser Straße 12, 33659, Bielefeld, Germany
| | - Caroline Müller
- Department of Chemical Ecology, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany.
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Meng Y, Du Q, Du H, Wang Q, Wang L, Du L, Liu P. Analysis of chemotypes and their markers in leaves of core collections of Eucommia ulmoides using metabolomics. FRONTIERS IN PLANT SCIENCE 2023; 13:1029907. [PMID: 36699853 PMCID: PMC9868706 DOI: 10.3389/fpls.2022.1029907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
The leaves of Eucommia ulmoides contain various active compunds and nutritional components, and have successively been included as raw materials in the Chinese Pharmacopoeia, the Health Food Raw Material Catalogue, and the Feed Raw Material Catalogue. Core collections of E. ulmoides had been constructed from the conserved germplasm resources basing on molecular markers and morphological traits, however, the metabolite diversity and variation in this core population were little understood. Metabolite profiles of E. ulmoides leaves of 193 core collections were comprehensively characterized by GC-MS and LC-MS/MS based non-targeted metabolomics in present study. Totally 1,100 metabolites were identified and that belonged to 18 categories, and contained 120 active ingredients for traditional Chinese medicine (TCM) and 85 disease-resistant metabolites. Four leaf chemotypes of the core collections were established by integrated uses of unsupervised self-organizing map (SOM), supervised orthogonal partial least squares discriminant analysis (OPLS-DA) and random forest (RF) statistical methods, 30, 23, 43, and 23 chemomarkers were screened corresponding to the four chemotypes, respectively. The morphological markers for the chemotypes were obtained by weighted gene co-expression network analysis (WGCNA) between the chenomarkers and the morphological traits, with leaf length (LL), chlorophyll reference value (CRV), leaf dentate height (LDH), and leaf thickness (LT) corresponding to chemotypes I, II, III, and IV, respectively. Contents of quercetin-3-O-pentosidine, isoquercitrin were closely correlated to LL, leaf area (LA), and leaf perimeter (LP), suggesting the quercetin derivatives might influence the growth and development of E. ulmoides leaf shape.
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Affiliation(s)
- Yide Meng
- Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, China
| | - Qingxin Du
- Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, China
| | - Hongyan Du
- Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, China
| | - Qi Wang
- Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, China
| | - Lu Wang
- Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, China
| | - Lanying Du
- Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, China
| | - Panfeng Liu
- Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, China
- Key Laboratory of Non-timber Forest Germplasm Enhancement & Utilization of National Forestry and Grassland Administration, Zhengzhou, China
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Albuquerque DR, Patriarca A, Pinto VF. Water activity influence on the simultaneous production of DON, 3-ADON and 15-ADON by a strain of fusarium graminearum ss of 15-ADON genotype. Int J Food Microbiol 2022; 373:109721. [DOI: 10.1016/j.ijfoodmicro.2022.109721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/04/2022] [Accepted: 05/10/2022] [Indexed: 10/18/2022]
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Trichothecene Genotype Profiling of Wheat Fusarium graminearum Species Complex in Paraguay. Toxins (Basel) 2022; 14:toxins14040257. [PMID: 35448866 PMCID: PMC9028958 DOI: 10.3390/toxins14040257] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/23/2022] [Accepted: 04/01/2022] [Indexed: 12/02/2022] Open
Abstract
Paraguay is a non-traditional wheat-producing country in one of the warmest regions in South America. Fusarium Head Blight (FHB) is a critical disease affecting this crop, caused by the Fusarium graminearum species complex (FGSC). A variety of these species produce trichothecenes, including deoxynivalenol (DON) and its acetylated forms (3-ADON and 15-ADON) or nivalenol (NIV). This study characterized the phylogenetic relationships, and chemotype diversity of 28 strains within FGSC collected from wheat fields across different country regions. Phylogenetic analysis based on the sequence of elongation factor-1α gene (EF-1α) from 28 strains revealed the presence of four species in the FGSC: F. graminearum sensu stricto, F. asiaticum, F. meridionale and F. cortaderiae. Ten strains selected for further analysis revealed that all F. graminearum strains were 15-ADON chemotype, while the two strains of F. meridionale and one strain of F. asiaticum were NIV chemotype. Thus, the 15-ADON chemotype of F. graminearum sensu stricto was predominant within the Fusarium strains isolated in the country. This work is the first report of phylogenetic relationships and chemotype diversity among Fusarium strains which will help understand the population diversity of this pathogen in Paraguay.
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Machado FJ, de Barros AV, McMaster N, Schmale DG, Vaillancourt LJ, Del Ponte EM. Aggressiveness and Mycotoxin Production by Fusarium meridionale Compared with F. graminearum on Maize Ears and Stalks in the Field. PHYTOPATHOLOGY 2022; 112:271-277. [PMID: 34142851 DOI: 10.1094/phyto-04-21-0149-r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Fusarium meridionale and F. graminearum both cause Gibberella ear rot (GER) and Gibberella stalk rot (GSR) of maize in Brazil, but the former is much more common. Recent work with two isolates of each from maize suggested this dominance could be caused by greater aggressiveness and competitiveness of F. meridionale on maize. We evaluated pathogenicity and toxigenicity of 16 isolates of F. graminearum and 24 isolates of F. meridionale recovered from both wheat and maize. Strains were individually inoculated into ears of four maize hybrids in field trials. GER severity varied significantly between isolates within each species. Although ranges overlapped, the average GER severity induced by F. meridionale (25.2%) was two times as high overall as that induced by F. graminearum (12.8%) for isolates obtained from maize but was similar for those isolated from wheat (19.9 and 21.4%, respectively). In contrast, severity of GSR was slightly higher for F. graminearum (22.2%) than for F. meridionale (19.8%), with no effect of the host of origin. Deoxynivalenol and its acetylated form 15ADON were the main mycotoxins produced by F. graminearum (7/16 strains), and nivalenol toxin was produced by F. meridionale (17/24 strains). Six isolates of F. graminearum and three of F. meridionale also produced zearalenone. Results confirmed that F. meridionale from maize is, on average, more aggressive on maize but also suggested greater complexity related to diversity among the isolates within each species and their interactions with different hybrids. Further studies involving other components of the disease cycle are needed to more fully explain observed patterns of host dominance.
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Affiliation(s)
- Franklin J Machado
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, MG, Brazil
- Department of Plant Pathology, University of Kentucky, Lexington, KY, U.S.A
| | - Aline V de Barros
- Department of Plant Pathology, University of Kentucky, Lexington, KY, U.S.A
- Departamento de Fitopatologia, Universidade Federal de Lavras, Lavras, MG, Brazil
| | - Nicole McMaster
- School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, U.S.A
| | - David G Schmale
- School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, U.S.A
| | | | - Emerson M Del Ponte
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, MG, Brazil
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Crippin T, Limay-Rios V, Renaud J, Schaafsma A, Sumarah M, Miller J. Fusarium graminearum populations from maize and wheat in Ontario, Canada. WORLD MYCOTOXIN J 2020. [DOI: 10.3920/wmj2019.2532] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Ontario has suffered widespread epidemics of Fusarium Head Blight or Gibberella Ear Rot roughly every five years since the late 1970s. We undertook a study of the chemotype and genotype of Fusarium graminearum isolated from 1,800 samples of wheat and maize collected across the cereal growing areas over three years. 468 isolates obtained were genotyped and 60 were selected for chemotyping. The dominant genotype has remained the native 15-acetyldeoxynivalenol (15-ADON) population. Approximately 20% of the strains tested were of the native chemotype producing only 15-ADON and one strain producing solely 7α-hydroxy,15-deacetylcalonectrin (3ANX) was observed. The majority of the 15-ADON strains were also capable of producing 3ANX. There was consistent mismatch between chemotype and genotype. This reflects the considerable plasticity in the genes associated with trichothecene biosynthesis documented in several Fusarium species. Although there is a large gradient in climate from southern to eastern Ontario, we did not detect differences in the distribution of the chemotypes. Grain from which strains were isolated for chemotyping were analysed. Approximately half of the 53 samples had >2 mg/kg deoxynivalenol with a maximum of 400 mg/kg and median of 14 mg/kg. 7α-hydroxy,3,15-dideacetylcalonectrin (NX toxin) was detected in three of these samples at an average of 4.5 mg/kg. The stability of the F. graminearum genotype in Ontario can be explained by several factors. Since 1980, the area planted to maize has remained stable, however, the area given to wheat has about doubled. Minimum tillage was rare in 1980 but it is now the norm. Increased crop residue on the soil has greatly increased the biomass of ascocarps that overwinter. Overall, these data demonstrate the need to monitor the mycotoxins in Fusarium populations and for the need to consider the potential toxicity of NX in the feed supply.
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Affiliation(s)
- T. Crippin
- Department of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada
| | - V. Limay-Rios
- Department of Plant Agriculture, University of Guelph, Ridgetown, ON N0P 2C0, Canada
| | - J.B. Renaud
- London Research and Development Center, Agriculture Agri-Food Canada, London, ON N5V 4T3, Canada
| | - A.W. Schaafsma
- Department of Plant Agriculture, University of Guelph, Ridgetown, ON N0P 2C0, Canada
| | - M.W. Sumarah
- Department of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada
- London Research and Development Center, Agriculture Agri-Food Canada, London, ON N5V 4T3, Canada
| | - J.D. Miller
- Department of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada
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Villafana RT, Ramdass AC, Rampersad SN. TRI Genotyping and Chemotyping: A Balance of Power. Toxins (Basel) 2020; 12:E64. [PMID: 31973043 PMCID: PMC7076749 DOI: 10.3390/toxins12020064] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/13/2019] [Accepted: 12/16/2019] [Indexed: 11/17/2022] Open
Abstract
Fusarium is among the top 10 most economically important plant pathogens in the world. Trichothecenes are the principal mycotoxins produced as secondary metabolites by select species of Fusarium and cause acute and chronic toxicity in animals and humans upon exposure either through consumption and/or contact. There are over 100 trichothecene metabolites and they can occur in a wide range of commodities that form food and feed products. This review discusses strategies to mitigate the risk of mycotoxin production and exposure by examining the Fusarium-trichothecene model. Fundamental to mitigation of risk is knowing the identity of the pathogen. As such, a comparison of current, recommended molecular approaches for sequence-based identification of Fusaria is presented, followed by an analysis of the rationale and methods of trichothecene (TRI) genotyping and chemotyping. This type of information confirms the source and nature of risk. While both are powerful tools for informing regulatory decisions, an assessment of the causes of incongruence between TRI genotyping and chemotyping data must be made. Reconciliation of this discordance will map the way forward in terms of optimization of molecular approaches, which includes data validation and sharing in the form of accessible repositories of genomic data and browsers for querying such data.
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Affiliation(s)
| | | | - Sephra N. Rampersad
- Department of Life Sciences, Faculty of Science and Technology, The University of the West Indies, St. Augustine, Trinidad and Tobago
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Foroud NA, Baines D, Gagkaeva TY, Thakor N, Badea A, Steiner B, Bürstmayr M, Bürstmayr H. Trichothecenes in Cereal Grains - An Update. Toxins (Basel) 2019; 11:E634. [PMID: 31683661 PMCID: PMC6891312 DOI: 10.3390/toxins11110634] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/25/2019] [Accepted: 10/29/2019] [Indexed: 01/01/2023] Open
Abstract
Trichothecenes are sesquiterpenoid mycotoxins produced by fungi from the order Hypocreales, including members of the Fusarium genus that infect cereal grain crops. Different trichothecene-producing Fusarium species and strains have different trichothecene chemotypes belonging to the Type A and B class. These fungi cause a disease of small grain cereals, called Fusarium head blight, and their toxins contaminate host tissues. As potent inhibitors of eukaryotic protein synthesis, trichothecenes pose a health risk to human and animal consumers of infected cereal grains. In 2009, Foroud and Eudes published a review of trichothecenes in cereal grains for human consumption. As an update to this review, the work herein provides a comprehensive and multi-disciplinary review of the Fusarium trichothecenes covering topics in chemistry and biochemistry, pathogen biology, trichothecene toxicity, molecular mechanisms of resistance or detoxification, genetics of resistance and breeding strategies to reduce their contamination of wheat and barley.
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Affiliation(s)
- Nora A Foroud
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, AB T1J 4B1, Canada.
| | - Danica Baines
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, AB T1J 4B1, Canada.
| | - Tatiana Y Gagkaeva
- Laboratory of Mycology and Phytopathology, All-Russian Institute of Plant Protection (VIZR), St. Petersburg, Pushkin 196608, Russia.
| | - Nehal Thakor
- Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada.
| | - Ana Badea
- Brandon Research and Development Centre, Agriculture and Agri-Food Canada, Brandon, MB R7A 5Y3, Canada.
| | - Barbara Steiner
- Department of Agrobiotechnology (IFA-Tulln), Institute of Biotechnology in Plant Production, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln 3430, Austria.
| | - Maria Bürstmayr
- Department of Agrobiotechnology (IFA-Tulln), Institute of Biotechnology in Plant Production, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln 3430, Austria.
| | - Hermann Bürstmayr
- Department of Agrobiotechnology (IFA-Tulln), Institute of Biotechnology in Plant Production, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln 3430, Austria.
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Ramírez Albuquerque D, Patriarca A, Fernández Pinto V. Can discrepancies between Fusarium graminearum trichothecene genotype and chemotype be explained by the influence of temperature in the relative production of 3-ADON and 15-ADON? Fungal Biol 2019; 125:153-159. [PMID: 33518205 DOI: 10.1016/j.funbio.2019.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/29/2019] [Accepted: 09/09/2019] [Indexed: 11/16/2022]
Abstract
Wheat is one of the most important crops in Argentina and worldwide. One of the major diseases affecting the crop is the Fusarium Head Blight (FHB). It is an endemic disease caused mainly by Fusarium graminearum, the most common agent of FHB around the world. The infection is strongly influenced by environmental parameters and occurs mostly when there are favourable conditions of moisture and temperature during wheat anthesis or flowering. This destructive disease affects wheat, barley and other small grains and has the capability of destroying crops, causing great economic losses due to reduced grain quality, and the accumulation of significant levels of mycotoxins such as trichothecenes. The aim of this study was to evaluate the influence of temperature on mycotoxin biosynthesis, on three strains of F. graminearum of 15-ADON genotype and one of 3-ADON genotype, with different capacity of synthesizing DON, 3-ADON and 15-ADON. Trichothecene production of the strains at different temperatures (5, 10, 15, 20, 25, 30 and 35 °C) was evaluated after 7, 14, 21, 28 and 35 d of incubation. The optimum temperature to produce DON and 3-ADON was between 25 and 30 °C, but the maximum production of 15-ADON occurred at a lower temperature (10 °C) for all the strains. Conversely, the minimum production of DON and 3-ADON was recorded between 5 and 10 °C and of 15-ADON between 30 and 35 °C. A possible explanation for the similar accumulation of both acetyl derivatives by strains of different chemotype and genotypes could be that the acetyl derivatives biosynthesis is regulated by temperature.
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Affiliation(s)
- Diana Ramírez Albuquerque
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Laboratorio de Microbiología de Alimentos, CONICET, Instituto de Micología y Botánica (INMIBO), Buenos Aires, Argentina
| | - Andrea Patriarca
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Laboratorio de Microbiología de Alimentos, CONICET, Instituto de Micología y Botánica (INMIBO), Buenos Aires, Argentina.
| | - Virginia Fernández Pinto
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Laboratorio de Microbiología de Alimentos, CONICET, Instituto de Micología y Botánica (INMIBO), Buenos Aires, Argentina
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Ulrich S, Niessen L, Ekruth J, Schäfer C, Kaltner F, Gottschalk C. Truncated satratoxin gene clusters in selected isolates of the atranone chemotype of Stachybotrys chartarum (Ehrenb.) S. Hughes. Mycotoxin Res 2019; 36:83-91. [PMID: 31435889 PMCID: PMC6971138 DOI: 10.1007/s12550-019-00371-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 08/15/2019] [Accepted: 08/16/2019] [Indexed: 01/09/2023]
Abstract
The fungus Stachybotrys (S.) chartarum was isolated from culinary herbs, damp building materials, and improperly stored animal forage. Two distinct chemotypes of the fungus were described that produced either high-cytotoxic macrocyclic trichothecenes (S type) or low-cytotoxic atranones (A type). Recently, two distinct gene clusters were described that were found to be necessary for the biosynthesis of either macrocyclic trichothecenes (21 SAT (Satratoxin) genes) or atranones (14 ATR (Atranone) genes). In the current study, PCR primers were designed to detect SAT and ATR genes in 19 S. chartarum chemotype S and eight S. chartarum chemotype A strains. Our analysis revealed the existence of three different genotypes: satratoxin-producing strains that harbored all SAT genes but lacked the ATR gene cluster (genotype S), non-satratoxin-producing strains that possessed the ATR genes but lacked SAT genes (genotype A), and a hitherto undescribed hybrid genotype among non-satratoxin-producing strains that harbored all ATR genes and an incomplete set of SAT genes (genotype H). In order to improve the discrimination of genotypes, a triplex PCR assay was developed and applied for the analysis of S. chartarum and S. chlorohalonata cultures. The results show that genes for macrocyclic trichothecenes and atranones are not mutually exclusive in S. chartarum. Correlation of the new genotype-based concept with mycotoxin production data shows also that macrocyclic trichothecenes are exclusively produced by S. chartarum genotype S strains.
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Affiliation(s)
- Sebastian Ulrich
- Chair of Bacteriology and Mycology, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstraße 13, 80539, Munich, Germany.
| | - Ludwig Niessen
- Chair of Technical Microbiology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Gregor-Mendel-Str. 4, 85354, Freising, Germany
| | - Julia Ekruth
- Chair of Food Safety, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Schoenleutnerstr. 8, 85764, Oberschleissheim, Germany
| | - Cornelius Schäfer
- Chair of Food Safety, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Schoenleutnerstr. 8, 85764, Oberschleissheim, Germany
| | - Florian Kaltner
- Chair of Food Safety, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Schoenleutnerstr. 8, 85764, Oberschleissheim, Germany
| | - Christoph Gottschalk
- Chair of Food Safety, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Schoenleutnerstr. 8, 85764, Oberschleissheim, Germany
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Crippin T, Renaud JB, Sumarah MW, Miller JD. Comparing genotype and chemotype of Fusarium graminearum from cereals in Ontario, Canada. PLoS One 2019; 14:e0216735. [PMID: 31071188 PMCID: PMC6508712 DOI: 10.1371/journal.pone.0216735] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 04/26/2019] [Indexed: 01/21/2023] Open
Abstract
Fusarium graminearum is responsible for production of the mycotoxin deoxynivalenol (DON) on maize and wheat in Ontario, Canada. It has been understood since the early 1980s that in most parts of Canada, the predominant chemotype of F. graminearum is 15ADON, and not the 3ADON chemotype mainly found in Europe and Asia. The discovery of F. graminearum strains that did not produce DON but the structurally related 7-α hydroxy, 15-deacetylcalonectrin (3ANX) and its hydrolysis product 7-α hydroxy, 3,15-dideacetylcalonectrin to (NX) demonstrated that we still have a lot to learn about this well studied but complicated fungus. We conducted a survey of maize and wheat samples from Ontario farms. In the 2015 crop year, we isolated 86 strains and tested a representative subset of 20 using the published genetic probes for assessing genotype. We also developed a targeted LC-MS/MS method for the identification and quantitation of known toxins from this species to determine chemotype. The results showed that 80% of our strains produced some 3ANX in addition to 15ADON and one strain produced 3ANX and no 15ADON. Comparison of chemical data with genotyping revealed that in more than 50% of the cases there was no clear agreement. These data demonstrate the importance of chemical analysis for understanding the toxigenic potential of strains, especially using a LC-MS method that is capable of differentiating 3ADON and 15ADON. For this collection, genotyping of isolates did not produce reliable information on the chemotype. This is the first report of 3ANX toxin production concurrently with 15ADON and suggests that the 3ANX producers in North America likely originated from the 15ADON background.
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Affiliation(s)
- Trinda Crippin
- Department of Chemistry, Carleton University, Ottawa, Ontario, Canada
| | - Justin B. Renaud
- London Research and Development Center, Agriculture and Agri-Food Canada, London, Canada
| | - Mark W. Sumarah
- Department of Chemistry, Carleton University, Ottawa, Ontario, Canada
- London Research and Development Center, Agriculture and Agri-Food Canada, London, Canada
| | - J. David Miller
- Department of Chemistry, Carleton University, Ottawa, Ontario, Canada
- * E-mail:
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Isolation, chemical characterization and hydrolysis of the trichothecene 7α-hydroxy, 15-deacetylcalonectrin (3ANX) from Fusarium graminearum DAOMC 242077. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.02.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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14
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Villafana RT, Ramdass AC, Rampersad SN. Selection of Fusarium Trichothecene Toxin Genes for Molecular Detection Depends on TRI Gene Cluster Organization and Gene Function. Toxins (Basel) 2019; 11:E36. [PMID: 30646506 PMCID: PMC6357111 DOI: 10.3390/toxins11010036] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/15/2018] [Accepted: 01/08/2019] [Indexed: 01/07/2023] Open
Abstract
Food security is a global concern. Fusarium are among the most economically important fungal pathogens because they are ubiquitous, disease management remains a challenge, they produce mycotoxins that affect food and feed safety, and trichothecene mycotoxin production can increase the pathogenicity of some Fusarium species depending on the host species. Although trichothecenes may differ in structure by their patterns of hydroxylation or acetylation, these small changes have a significant impact on toxicity and the biological activity of these compounds. Therefore, detecting and identifying which chemotype is present in a given population are important to predicting the specific toxins that may be produced and, therefore, to evaluating the risk of exposure. Due to the challenges of inducing trichothecene production by Fusarium isolates in vitro for subsequent chemical analysis, PCR assays using gene-specific primers, either singly or in combination, designed against specific genes of the trichothecene gene cluster of multiple species of Fusarium have been developed. The establishment of TRI genotypes that potentially correspond to a specific chemotype requires examination of an information and knowledge pipeline whose critical aspects in sequential order are: (i) understanding the TRI gene cluster organization which differs according to Fusarium species under study; (ii) knowledge of the re-arrangements to the core TRI gene cluster over evolutionary time, which also differs according to Fusarium species; (iii) the functions of the TRI genes in the biosynthesis of trichothecene analogs; and (iv) based on (i)⁻(iii), selection of appropriate target TRI gene(s) for primer design in PCR amplification for the Fusarium species under study. This review, therefore, explains this pipeline and its connection to utilizing TRI genotypes as a possible proxy to chemotype designation.
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Affiliation(s)
- Ria T Villafana
- Department of Life Sciences, Faculty of Science and Technology, The University of the West Indies, St. Augustine, Trinidad and Tobago.
| | - Amanda C Ramdass
- Department of Life Sciences, Faculty of Science and Technology, The University of the West Indies, St. Augustine, Trinidad and Tobago.
| | - Sephra N Rampersad
- Department of Life Sciences, Faculty of Science and Technology, The University of the West Indies, St. Augustine, Trinidad and Tobago.
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Liang X, Lee HW, Li Z, Lu Y, Zou L, Ong CN. Simultaneous Quantification of 22 Glucosinolates in 12 Brassicaceae Vegetables by Hydrophilic Interaction Chromatography-Tandem Mass Spectrometry. ACS OMEGA 2018; 3:15546-15553. [PMID: 31458210 PMCID: PMC6643737 DOI: 10.1021/acsomega.8b01668] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 10/03/2018] [Indexed: 05/07/2023]
Abstract
Glucosinolates, which are unique to Brassicaceae vegetables, have diverse biological activities, including antimicrobial, antioxidant, and anticancer actions. In this study, we applied hydrophilic interaction chromatography-tandem mass spectrometry (HILIC-MS/MS) to the simultaneous quantification of 22 glucosinolates in 12 Brassicaceae vegetables, including pak choi, choy sum, Chinese cabbage, cauliflower, cabbage, broccoli, Kai Lan, Brussels sprouts, rocket salad, daikon radish, red cherry radish, and watercress. Significant differences in concentration and composition of glucosinolates were observed among these vegetables. Cabbage had the highest level of total glucosinolates (μg/g dry weight: 19 551.2 ± 1317.7), whereas Kai Lan had the lowest level (7611.3 ± 868.4). Aliphatic and indole glucosinolates were the major components in the 12 vegetables ranging from 76 to 100%, except watercress (37%). On the basis of the content of glucosinolates, the 12 vegetables were well distinguishable and classified according to their morphological taxonomy. This study presents a HILIC-MS/MS approach for quantification of glucosinolates, and demonstrates the potential of glucosinolate profiles for Brassicaceae species identification.
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Affiliation(s)
- Xu Liang
- NUS
Environment Research Institute, National
University of Singapore, 5A Engineering Drive 1, 117411 Singapore
| | - Hui Wen Lee
- NUS
Environment Research Institute, National
University of Singapore, 5A Engineering Drive 1, 117411 Singapore
| | - Zhifeng Li
- College
of Pharmacy, Jiangxi University of Traditional
Chinese Medicine, 1688
Meilingdadao Road, 330004 Nanchang, Jiangxi Province, P. R. China
| | - Yonghai Lu
- Saw
Swee Hock School of Public Health, National
University of Singapore, 12 Science Drive 2, 117549 Singapore
| | - Li Zou
- Saw
Swee Hock School of Public Health, National
University of Singapore, 12 Science Drive 2, 117549 Singapore
| | - Choon Nam Ong
- NUS
Environment Research Institute, National
University of Singapore, 5A Engineering Drive 1, 117411 Singapore
- Saw
Swee Hock School of Public Health, National
University of Singapore, 12 Science Drive 2, 117549 Singapore
- E-mail: . Tel: +65-6516 7386
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16
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Nai C, Meyer V. From Axenic to Mixed Cultures: Technological Advances Accelerating a Paradigm Shift in Microbiology. Trends Microbiol 2018; 26:538-554. [DOI: 10.1016/j.tim.2017.11.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 10/25/2017] [Accepted: 11/08/2017] [Indexed: 02/07/2023]
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17
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Guo X, Cui M, Deng M, Liu X, Huang X, Zhang X, Luo L. Molecular differentiation of five Cinnamomum camphora chemotypes using desorption atmospheric pressure chemical ionization mass spectrometry of raw leaves. Sci Rep 2017; 7:46579. [PMID: 28425482 PMCID: PMC5397862 DOI: 10.1038/srep46579] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 03/17/2017] [Indexed: 12/27/2022] Open
Abstract
Five chemotypes, the isoborneol-type, camphora-type, cineole-type, linalool-type and borneol-type of Cinnamomum camphora (L.) Presl have been identified at the molecular level based on the multivariate analysis of mass spectral fingerprints recorded from a total of 750 raw leaf samples (i.e., 150 leaves equally collected for each chemotype) using desorption atmospheric pressure chemical ionization mass spectrometry (DAPCI-MS). Both volatile and semi-volatile metabolites of the fresh leaves of C. camphora were simultaneously detected by DAPCI-MS without any sample pretreatment, reducing the analysis time from half a day using conventional methods (e.g., GC-MS) down to 30 s. The pattern recognition results obtained using principal component analysis (PCA) was cross-checked by cluster analysis (CA), showing that the difference visualized by the DAPCI-MS spectral fingerprints was validated with 100% accuracy. The study demonstrates that DAPCI-MS meets the challenging requirements for accurate differentiation of all the five chemotypes of C. camphora leaves, motivating more advanced application of DAPCI-MS in plant science and forestry studies.
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Affiliation(s)
- Xiali Guo
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Meng Cui
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Min Deng
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xingxing Liu
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xueyong Huang
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xinglei Zhang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang, Jiangxi 330013, China
| | - Liping Luo
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi 330031, China.,State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
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Kulik T, Buśko M, Bilska K, Ostrowska-Kołodziejczak A, van Diepeningen AD, Perkowski J, Stenglein S. Depicting the Discrepancy between Tri Genotype and Chemotype on the Basis of Strain CBS 139514 from a Field Population of F. graminearum Sensu Stricto from Argentina. Toxins (Basel) 2016; 8:E330. [PMID: 27845742 PMCID: PMC5127127 DOI: 10.3390/toxins8110330] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 10/31/2016] [Accepted: 11/08/2016] [Indexed: 11/16/2022] Open
Abstract
Recent studies on a field population of F. graminearum sensu stricto from Argentina revealed an atypical panel of strains identified through PCR genotyping as 15ADON genotypes, but producing high levels of 3ADON. Based on representative strain CBS 139514, we asked if the discrepancy between the trichothecene genotype and chemotype might result from an inter-chemotype recombination of the chemotype-determining genes. To answer this, we sequenced the complete core Tri gene cluster (around 30,200 bp) from this strain and compared its sequence to sequence data of typical type B trichothecene genotypes/chemotypes. Sequence alignment showed that CBS 139514 has an identical sequence within the entire core Tri cluster to the 15ADON genotype. The revealed discrepancy underlines the need for using both molecular and chemical methods for reliable characterization of toxigenic strains of Fusarium.
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Affiliation(s)
- Tomasz Kulik
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, Olsztyn 10-727, Poland.
| | - Maciej Buśko
- Department of Chemistry, Poznań University of Life Sciences, ul. Wojska Polskiego 75, Poznań 60-625, Poland.
| | - Katarzyna Bilska
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, Olsztyn 10-727, Poland.
| | | | - Anne D van Diepeningen
- CBS-KNAW Fungal Biodiversity Centre, Uppsalalaan 8, Utrecht 3584 CT, The Netherlands.
- Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Science Park 904, Amsterdam 1098 XH, The Netherlands.
| | - Juliusz Perkowski
- Department of Chemistry, Poznań University of Life Sciences, ul. Wojska Polskiego 75, Poznań 60-625, Poland.
| | - Sebastian Stenglein
- Laboratorio de Biología Funcional y Biotecnología (BIOLAB)-Comisión de Investigaciones Científicas de la provincia de Buenos Aires-Instituto de Investigaciones en Biodiversidad y Biotecnología-Consejo Nacional de Investigaciones Científicas y Técnicas (CICBA-INBIOTEC, CONICET), Av. República de Italia 780, Azul 7300, Buenos Aires, Argentina.
- Cátedra de Microbiología-Facultad de Agronomía de Azul-UNCPBA, Av. República de Italia 780, Azul 7300, Buenos Aires, Argentina.
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19
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20
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21
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Pasquali M, Cocco E, Guignard C, Hoffmann L. The effect of agmatine on trichothecene type B and zearalenone production in Fusarium graminearum, F. culmorum and F. poae. PeerJ 2016; 4:e1672. [PMID: 26893962 PMCID: PMC4756729 DOI: 10.7717/peerj.1672] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 01/19/2016] [Indexed: 11/20/2022] Open
Abstract
Agmatine and other putrescines are known for being strong inducers of deoxynivalenol (DON) production in Fusarium graminearum. Other important species produce DON and/or other trichothecene type B toxins (3 acetylated DON, 15 acetylated DON, Fusarenon-X, Nivalenol), such as F. culmorum and F. poae. In order to verify whether the mechanism of the regulation of trichothecene type B induction by agmatine is shared by different species of Fusarium, we tested the hypothesis on 19 strains belonging to 3 Fusarium species (F. graminearum, F. culmorum, F. poae) with diverse genetic chemotypes (3ADON, 15ADON, NIV) by measuring trichothecene B toxins such as DON, NIV, Fusarenon-X, 3ADON and 15ADON. Moreover, we tested whether other toxins like zearalenone were also boosted by agmatine. The trichothecene type B boosting effect was observed in the majority of strains (13 out of 19) in all the three species. Representative strains from all three genetic chemotypes were able to boost toxin production after agmatine treatment. We identified the non-responding strains to the agmatine stimulus, which may contribute to deciphering the regulatory mechanisms that link toxin production to agmatine (and, more generally, polyamines).
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Affiliation(s)
- Matias Pasquali
- Department of Environmental Research and Innovation, Luxembourg Institute of Science and Technology (LIST) , Belvaux , Luxembourg
| | - Emmanuelle Cocco
- Department of Environmental Research and Innovation, Luxembourg Institute of Science and Technology (LIST) , Belvaux , Luxembourg
| | - Cédric Guignard
- Department of Environmental Research and Innovation, Luxembourg Institute of Science and Technology (LIST) , Belvaux , Luxembourg
| | - Lucien Hoffmann
- Department of Environmental Research and Innovation, Luxembourg Institute of Science and Technology (LIST) , Belvaux , Luxembourg
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22
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Castañares E, Albuquerque DR, Dinolfo MI, Pinto VF, Patriarca A, Stenglein SA. Trichothecene genotypes and production profiles of Fusarium graminearum isolates obtained from barley cultivated in Argentina. Int J Food Microbiol 2014; 179:57-63. [PMID: 24727383 DOI: 10.1016/j.ijfoodmicro.2014.03.024] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 03/13/2014] [Accepted: 03/19/2014] [Indexed: 11/15/2022]
Abstract
Fusarium graminearum is one of the most important pathogens isolated from small cereal grains with Fusarium Head Blight symptoms. The presence of this fungus is often linked to the occurrence of several mycotoxins in barley and wheat. The aim of our study was to characterize trichothecene genotypes and production profiles of F. graminearum sensu stricto isolates obtained from barley grains in Argentina. A total of 110 F. graminearum s.s. isolates were analyzed by PCR assays to predict deoxynivalenol (DON), 15-acetyldeoxynivalenol (15-ADON), 3-acetyldeoxynivalenol (3-ADON) and nivalenol (NIV) production, and all isolates were found to belong to the same molecular 15-ADON genotype. Trichothecene production in autoclaved rice was analyzed by using gas chromatography (GC) and confirmed by GC-MS. Of the 110 isolates, 95% were able to produce DON, 71% produced 15-ADON, 63% 3-ADON and 52% NIV. With the exception of a single isolate, all isolates that produced NIV, also produced DON. However, the NIV production was very low, ranging from 0.13 to 0.30 μg/g. Six different production profiles of DON and its acetyl-derivatives were detected, the predominant being simultaneous production of DON, 3-ADON and 15-ADON, followed by DON production, and DON and 15-ADON co-production. This work is the first attempt to characterize the trichothecene genotypes and production profiles of F. graminearum s.s. isolates from Argentinean barley.
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Affiliation(s)
- Eliana Castañares
- Laboratorio de Biología Funcional y Biotecnología (BIOLAB)-CICBA-INBIOTEC, Facultad de Agronomía de Azul-UNCPBA, Av. República de Italia 780, 7300 Azul, Buenos Aires, Argentina
| | - Diana Ramirez Albuquerque
- Laboratorio de Microbiología de Alimentos, PROPLAME-PRHIDEB, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, UBA, C1428EGA Buenos Aires, Argentina
| | - María Inés Dinolfo
- Laboratorio de Biología Funcional y Biotecnología (BIOLAB)-CICBA-INBIOTEC, Facultad de Agronomía de Azul-UNCPBA, Av. República de Italia 780, 7300 Azul, Buenos Aires, Argentina
| | - Virginia Fernandez Pinto
- Laboratorio de Microbiología de Alimentos, PROPLAME-PRHIDEB, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, UBA, C1428EGA Buenos Aires, Argentina
| | - Andrea Patriarca
- Laboratorio de Microbiología de Alimentos, PROPLAME-PRHIDEB, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, UBA, C1428EGA Buenos Aires, Argentina
| | - Sebastián Alberto Stenglein
- Laboratorio de Biología Funcional y Biotecnología (BIOLAB)-CICBA-INBIOTEC, Facultad de Agronomía de Azul-UNCPBA, Av. República de Italia 780, 7300 Azul, Buenos Aires, Argentina; Cátedra de Microbiología, Facultad de Agronomía de Azul-UNCPBA, Av. República de Italia 780, 7300, Azul, Buenos Aires, Argentina.
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23
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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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24
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Liu Z, Liu Y, Liu C, Song Z, Li Q, Zha Q, Lu C, Wang C, Ning Z, Zhang Y, Tian C, Lu A. The chemotaxonomic classification of Rhodiola plants and its correlation with morphological characteristics and genetic taxonomy. Chem Cent J 2013; 7:118. [PMID: 23844866 PMCID: PMC3718703 DOI: 10.1186/1752-153x-7-118] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Accepted: 07/10/2013] [Indexed: 01/30/2023] Open
Abstract
Background Rhodiola plants are used as a natural remedy in the western world and as a traditional herbal medicine in China, and are valued for their ability to enhance human resistance to stress or fatigue and to promote longevity. Due to the morphological similarities among different species, the identification of the genus remains somewhat controversial, which may affect their safety and effectiveness in clinical use. Results In this paper, 47 Rhodiola samples of seven species were collected from thirteen local provinces of China. They were identified by their morphological characteristics and genetic and phytochemical taxonomies. Eight bioactive chemotaxonomic markers from four chemical classes (phenylpropanoids, phenylethanol derivatives, flavonoids and phenolic acids) were determined to evaluate and distinguish the chemotaxonomy of Rhodiola samples using an HPLC-DAD/UV method. Hierarchical cluster analysis (HCA) and principal component analysis (PCA) were applied to compare the two classification methods between genetic and phytochemical taxonomy. Conclusions The established chemotaxonomic classification could be effectively used for Rhodiola species identification.
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Affiliation(s)
- Zhenli Liu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China.
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25
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Liu Z, Liu Y, Liu C, Song Z, Li Q, Zha Q, Lu C, Wang C, Ning Z, Zhang Y, Tian C, Lu A. The chemotaxonomic classification of Rhodiola plants and its correlation with morphological characteristics and genetic taxonomy. Chem Cent J 2013. [PMID: 23844866 DOI: 10.1007/bf02862235] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023] Open
Abstract
BACKGROUND Rhodiola plants are used as a natural remedy in the western world and as a traditional herbal medicine in China, and are valued for their ability to enhance human resistance to stress or fatigue and to promote longevity. Due to the morphological similarities among different species, the identification of the genus remains somewhat controversial, which may affect their safety and effectiveness in clinical use. RESULTS In this paper, 47 Rhodiola samples of seven species were collected from thirteen local provinces of China. They were identified by their morphological characteristics and genetic and phytochemical taxonomies. Eight bioactive chemotaxonomic markers from four chemical classes (phenylpropanoids, phenylethanol derivatives, flavonoids and phenolic acids) were determined to evaluate and distinguish the chemotaxonomy of Rhodiola samples using an HPLC-DAD/UV method. Hierarchical cluster analysis (HCA) and principal component analysis (PCA) were applied to compare the two classification methods between genetic and phytochemical taxonomy. CONCLUSIONS The established chemotaxonomic classification could be effectively used for Rhodiola species identification.
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Affiliation(s)
- Zhenli Liu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China.
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26
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Foroud NA, McCormick SP, MacMillan T, Badea A, Kendra DF, Ellis BE, Eudes F. Greenhouse Studies Reveal Increased Aggressiveness of Emergent Canadian Fusarium graminearum Chemotypes in Wheat. PLANT DISEASE 2012; 96:1271-1279. [PMID: 30727146 DOI: 10.1094/pdis-10-11-0863-re] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The role of Fusarium graminearum trichothecene-chemotypes in disease outcomes was evaluated by point inoculation in a series of wheat lines with different levels of resistance to Fusarium head blight (FHB). Four inocula, each consisting of a composite of four strains with either 15-acetyldeoxynivalenol (ADON) chemotypes from "traditional" or emergent populations, a 3-ADON chemotype, or a nivalenol (NIV) chemotype, were compared. The evaluated wheat included Canadian lines with different levels of FHB resistance/susceptibility and double haploid lines developed from crosses of these lines. Highly resistant lines were resistant to infection by all of the F. graminearum chemotypes evaluated. In the moderately susceptible/resistant wheat lines, the 3-ADON producers and the emergent 15-ADON population were, in some instances, more aggressive and resulted in higher Fusarium damaged kernel scores and levels of trichothecene accumulation. The data presented in this study demonstrate the importance of growing highly resistant wheat cultivars in the current climate of an evolving F. graminearum population, and suggest that moderate levels of FHB resistance may not be sufficient to minimize trichothecene contamination of grain from F. graminearum-infected wheat.
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Affiliation(s)
- N A Foroud
- Agriculture and Agri-Food Canada, Lethbridge Research Centre, Alberta T1J 4B1
| | - S P McCormick
- Bacterial Foodborne Pathogens and Mycology Unit, National Center for Agricultural Utilization Research, USDA-ARS, Peoria, IL 61604
| | - T MacMillan
- Agriculture and Agri-Food Canada, Lethbridge Research Centre, Alberta
| | - A Badea
- Agriculture and Agri-Food Canada, Lethbridge Research Centre, Alberta
| | - D F Kendra
- National Center for Agricultural Utilization Research, USDA-ARS, Peoria, IL
| | - B E Ellis
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia V6T 1Z4
| | - F Eudes
- Agriculture and Agri-Food Canada, Lethbridge Research Centre, Alberta
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27
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Astolfi P, dos Santos J, Schneider L, Gomes LB, Silva CN, Tessmann DJ, Del Ponte EM. Molecular survey of trichothecene genotypes of Fusarium graminearum species complex from barley in southern Brazil. Int J Food Microbiol 2011; 148:197-201. [PMID: 21665312 DOI: 10.1016/j.ijfoodmicro.2011.05.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Revised: 05/15/2011] [Accepted: 05/23/2011] [Indexed: 10/18/2022]
Abstract
Fusarium head blight is a disease of primary concern to small-grain cereals of Brazil, including barley. Its main causal agent, Fusarium graminearum species complex (Fg complex)¸ is able to produce mycotoxins, especially deoxynivalenol (DON) and nivalenol (NIV), that usually contaminate grain. Strains that produce DON may also produce its acetylated derivatives: 3-acetyl-DON (3-ADON) and 15-acetyl-DON (15-ADON). Ninety two isolates were obtained from samplings of barley grain during three years (2007, 2008 and 2009) from several fields in both southern and northern production regions of Rio Grande do Sul state, Brazil. These isolates were examined for polymerase chain-reaction-based (PCR) trichothecene genotype based on the amplification of portions of Tri3 and Tri12. There was no effect of year or region on the proportion of trichothecene genotypes. Overall, 66% of the strains (61/92) were 15-ADON, 4.4% (4/92) were 3-ADON and 29.3% (27/92) were NIV. The overall NIV/DON ratio estimated (0.41) was five times higher than that found in previous studies with strains from wheat grown in the same region. Species identification of nine strains representing the trichothecene genotypes, based on comparisons of DNA sequences of portions of the PHO, RED and URA genes with sequences from curated reference isolates of Fusarium from GenBank, revealed that they belong to F. graminearum sensu stricto (four 15-ADON and one 3-ADON strain), F. meridionale (three NIV strains) and F. austroamericanum (one 3-ADON strain). These results add to the current regional knowledge of trichothecene genotypes and species within the Fg complex affecting barley in the region.
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Affiliation(s)
- P Astolfi
- Departamento de Fitossanidade, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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Szécsi Á, Szekeres A, Bartók T, Oros G, Bartók M, Mesterházy Á. Fumonisin B1-4-producing capacity of Hungarian Fusarium verticillioides isolates. WORLD MYCOTOXIN J 2010. [DOI: 10.3920/wmj2009.1152] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The fumonisin B1-4 (FB1-4) toxin-producing capacities of 60 strains of Fusarium verticillioides isolated in the main maize-cultivating areas of Hungary were screened on rice grains in vitro. The amounts of FB1, FB2, FB3 and FB4 in the extracts of the culture material were determined by RP-HPLC/ESI-IT MS without any sample clean-up. All F. verticillioides strains produced all analogues (FB1-4) of the fumonisin B series. The strains did not differ significantly in their cultural characteristics, though the analytical results allowed the distinction of three idiosyncratic FB1-4-producing chemotypes with characteristic proportions of the fumonisin B analogues. The dominant chemotype produced them in the sequence FB1 > FB2 > FB3 > FB4, with large amounts of FB1 and FB2. A second chemotype produced a higher amount of FB3 than of FB2, while the third chemotype produced large amounts of FB2 and FB4. The proportion of FB1 in the extracts was inversely correlated with the total FB yield. No differences in FB1-4 producing capacity were observed between strains isolated from various locations or different sources.
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Affiliation(s)
- Á. Szécsi
- Department of Plant Pathology, Plant Protection Institute of Hungarian Academy of Sciences, P.O. Box 102, 1525 Budapest, Hungary
| | - A. Szekeres
- FumoPrep Ltd. Co., Vállalkozók útja, 1/b, 6782 Mórahalom, Hungary
| | - T. Bartók
- FumoPrep Ltd. Co., Vállalkozók útja, 1/b, 6782 Mórahalom, Hungary
- Cereal Research Non-profit Ltd. Co., P.O. Box 391, 6701 Szeged, Hungary
| | - G. Oros
- Department of Toxicology, Plant Protection Institute of Hungarian Academy of Sciences, P.O. Box 102, 1525 Budapest, Hungary
| | - M. Bartók
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, 6720 Szeged, Hungary
| | - Á. Mesterházy
- Cereal Research Non-profit Ltd. Co., P.O. Box 391, 6701 Szeged, Hungary
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Pasquali M, Giraud F, Brochot C, Cocco E, Hoffmann L, Bohn T. Genetic Fusarium chemotyping as a useful tool for predicting nivalenol contamination in winter wheat. Int J Food Microbiol 2009; 137:246-53. [PMID: 20004994 DOI: 10.1016/j.ijfoodmicro.2009.11.009] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2009] [Revised: 11/05/2009] [Accepted: 11/11/2009] [Indexed: 10/20/2022]
Abstract
Fusarium graminearum [teleomorph Gibberella zeae] and Fusarium culmorum together with Fusarium poae are the main species known to produce nivalenol (NIV). The NIV content in wheat (Triticum aestivum L.) harvested in Luxembourg was investigated in 2007 and 2008 at 17 different locations. Species determination and genetic chemotyping of F. graminearum and F. culmorum were used to understand the spatial distribution of NIV producers in wheat from Luxembourg. Three hundred thirteen F. graminearum, 175 F. culmorum and 117 F. poae strains respectively were isolated. Chemotypes of the first two species were determined by PCR and confirmed on a sub-sample of single isolates by LC-MS/MS analysis. The 15-acetylated DON chemotype of F. graminearum was dominant in both years representing 94.2% of the population while the NIV chemotype represented 5.8%. The F. culmorum chemotypes were rather evenly distributed, with 3-acetylated DON and NIV profiles present with similar abundances (53.2% and 46.8%, respectively). NIV presence in wheat flour obtained from the 17 sites was correlated with the number of F. culmorum (NIV chemotype) isolated from 100 seeds, suggesting its primary role in NIV production on grains. The predictive power for identifying NIV contamination in grains based on NIV chemotype presence was confirmed by coupling the isolation procedure with a cut-off value, resulting in the successful identification (100%, p=0.008) of NIV contamination in grains collected from 9 additional experimental sites. In conclusion, the results highlight the importance of chemotyping for improved prediction of toxin contamination in wheat.
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Affiliation(s)
- M Pasquali
- Centre de Recherche Public-Gabriel Lippmann, Department Environment and Agro-Biotechnologies, 41, rue du Brill, L-4422 Belvaux, Luxembourg.
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Alexander NJ, Proctor RH, McCormick SP. Genes, gene clusters, and biosynthesis of trichothecenes and fumonisins inFusarium. TOXIN REV 2009. [DOI: 10.1080/15569540903092142] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Garvey GS, McCormick SP, Alexander NJ, Rayment I. Structural and functional characterization of TRI3 trichothecene 15-O-acetyltransferase from Fusarium sporotrichioides. Protein Sci 2009; 18:747-61. [PMID: 19319932 DOI: 10.1002/pro.80] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Fusarium head blight is a devastating disease of cereal crops whose worldwide incidence is increasing and at present there is no satisfactory way of combating this pathogen or its associated toxins. There is a wide variety of trichothecene mycotoxins and they all contain a 12,13-epoxytrichothecene skeleton but differ in their substitutions. Indeed, there is considerable variation in the toxin profile across the numerous Fusarium species that has been ascribed to differences in the presence or absence of biosynthetic enzymes and their relative activity. This article addresses the source of differences in acetylation at the C15 position of the trichothecene molecule. Here, we present the in vitro structural and biochemical characterization of TRI3, a 15-O-trichothecene acetyltransferase isolated from F. sporotrichioides and the "in vivo" characterization of Deltatri3 mutants of deoxynivalenol (DON) producing F. graminearum strains. A kinetic analysis shows that TRI3 is an efficient enzyme with the native substrate, 15-decalonectrin, but is inactive with either DON or nivalenol. The structure of TRI3 complexed with 15-decalonectrin provides an explanation for this specificity and shows that Tri3 and Tri101 (3-O-trichothecene acetyltransferase) are evolutionarily related. The active site residues are conserved across all sequences for TRI3 orthologs, suggesting that differences in acetylation at C15 are not due to differences in Tri3. The tri3 deletion mutant shows that acetylation at C15 is required for DON biosynthesis even though DON lacks a C15 acetyl group. The enzyme(s) responsible for deacetylation at the 15 position of the trichothecene mycotoxins have not been identified.
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Affiliation(s)
- Graeme S Garvey
- Department of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706, USA
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Foroud NA, Eudes F. Trichothecenes in cereal grains. Int J Mol Sci 2009; 10:147-173. [PMID: 19333439 PMCID: PMC2662451 DOI: 10.3390/ijms10010147] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Revised: 12/16/2008] [Accepted: 01/05/2009] [Indexed: 12/22/2022] Open
Abstract
Trichothecenes are sesquiterpenoid mycotoxins associated with fusarium head blight (FHB) of cereals, with worldwide economic and health impacts. While various management strategies have been proposed to reduce the mycotoxin risk, breeding towards FHB-resistance appears to be the most effective means to manage the disease, and reduce trichothecene contamination of cereal-based food products. This review provides a brief summary of the trichothecene synthesis in Fusarium species, their toxicity in plants and humans, followed by the current methods of screening and breeding for resistance to FHB and trichothecene accumulation.
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Affiliation(s)
- Nora A. Foroud
- Lethbridge Research Centre, Agriculture and Agri-Food Canada, 5403 1 Avenue South, Lethbridge, AB, Canada T1J 4B1. E-Mail:
- Michael Smith Laboratories, The University of British Columbia, #301 - 2185 East Mall, Vancouver, B.C., Canada V6T 1Z4
| | - François Eudes
- Lethbridge Research Centre, Agriculture and Agri-Food Canada, 5403 1 Avenue South, Lethbridge, AB, Canada T1J 4B1. E-Mail:
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