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Robinson A, Ryu D, Lee HJ. Utility of a Multilevel Modeling Approach to Investigate Differences in Isolation Frequency of Fusarium culmorum in Agricultural Soil Across the Inland Pacific Northwest. PHYTOPATHOLOGY 2019; 109:1062-1073. [PMID: 30652959 DOI: 10.1094/phyto-05-18-0168-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: 06/09/2023]
Abstract
The plant pathogen Fusarium culmorum represents an inoculum source capable of contaminating grains with deoxynivalenol in the Inland Northwest region of the United States. A multilevel modeling approach utilizing varying intercepts for different sampling quadrats, fields, and iterations in the dataset was performed to characterize differences in isolation frequency of F. culmorum collected during a 2-year soil survey. Differences in the isolation frequency of F. culmorum varied the most by sampled field followed by quadrat and iteration, respectively. Higher relative elevation within the sampling region of a field limited the amount of F. culmorum recovered. The effect of annual climate variables was investigated using combinations of single-variable and multivariable model equations with linear and polynomial terms. The same data analysis approach was applied to an external dataset of F. culmorum isolation frequencies in grains from fields across eastern Australia. These results represent a case study for investigating variability within datasets containing overdispersed fungal counts and incorporating climate summaries as predictor variables.
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Affiliation(s)
- Andrew Robinson
- School of Food Science, University of Idaho, Moscow, ID 83844-2312
| | - Dojin Ryu
- School of Food Science, University of Idaho, Moscow, ID 83844-2312
| | - Hyun Jung Lee
- School of Food Science, University of Idaho, Moscow, ID 83844-2312
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Bilska K, Kulik T, Ostrowska-Kołodziejczak A, Buśko M, Pasquali M, Beyer M, Baturo-Cieśniewska A, Juda M, Załuski D, Treder K, Denekas J, Perkowski J. Development of a Highly Sensitive FcMito qPCR Assay for the Quantification of the Toxigenic Fungal Plant Pathogen Fusarium culmorum. Toxins (Basel) 2018; 10:E211. [PMID: 29883395 PMCID: PMC5983267 DOI: 10.3390/toxins10050211] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/15/2018] [Accepted: 05/18/2018] [Indexed: 01/03/2023] Open
Abstract
Fusarium culmorum is a ubiquitous, soil-borne fungus (ascomycete) causing foot and root rot and Fusarium head blight on cereals. It is responsible for yield and quality losses as well as grain contamination with mycotoxins, which are a potential health hazard. An extremely sensitive mitochondrial-based qPCR assay (FcMito qPCR) for quantification of F. culmorum was developed in this study. To provide specificity, the FcMito assay was successfully validated against 85 F. culmorum strains and 53 isolates of 30 other fungal species. The assay efficiency and sensitivity were evaluated against different F. culmorum strains with various amounts of pure fungal DNA and in the presence of background wheat DNA. The results demonstrated the high efficiency of the assay (97.2⁻106.0%, R²-values > 0.99). It was also shown that, in the presence of background DNA, 0.01 pg of fungal template could be reliably quantified. The FcMito assay was used to quantify F. culmorum DNA using 108 grain samples with different trichothecene levels. A significant positive correlation was found between fungal DNA quantity and the total trichothecene content. The obtained results showed that the sensitivity of the FcMito assay was much higher than the nuclear-based qPCR assay for F. culmorum.
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Affiliation(s)
- Katarzyna Bilska
- Department of Microbiology and Mycology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland.
| | - Tomasz Kulik
- Department of Microbiology and Mycology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland.
| | | | - Maciej Buśko
- Department of Chemistry, Poznań University of Life Sciences, Wojska Polskiego 75, 60-625 Poznań, Poland.
| | - Matias Pasquali
- Department of Food, Environmental and Nutritional Sciences (DEFENS), University of Milan, via Celoria 2, 20133 Milano, Italy.
| | - Marco Beyer
- Department Environmental Research and Innovation, Luxembourg Institute of Science and Technology, 41, rue du Brill, L-4422 Belvaux, Luxembourg.
| | - Anna Baturo-Cieśniewska
- Faculty of Agriculture and Biotechnology, Department of Phytopathology and Molecular Mycology, University of Technology and Life Sciences, Kordeckiego St. 20, 85-225 Bydgoszcz, Poland.
| | - Marcin Juda
- Faculty of Agriculture and Biotechnology, Department of Phytopathology and Molecular Mycology, University of Technology and Life Sciences, Kordeckiego St. 20, 85-225 Bydgoszcz, Poland.
| | - Dariusz Załuski
- Department of Plant Breeding and Seed Production, University of Warmia and Mazury in Olsztyn, Plac Łódzki 3, 10-727 Olsztyn, Poland.
| | - Kinga Treder
- Department of Agroecosystems, University of Warmia and Mazury in Olsztyn, Plac Łódzki 3, 10-727 Olsztyn, Poland.
| | - Joerg Denekas
- Agravis Technik Heide-Altmark GmbH, Hansestrasse 30, 29525 Uelzen, Germany.
| | - Juliusz Perkowski
- Department of Chemistry, Poznań University of Life Sciences, Wojska Polskiego 75, 60-625 Poznań, Poland.
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Laraba I, Keddad A, Boureghda H, Abdallah N, Vaughan MM, Proctor RH, Busman M, O’Donnell K. Fusarium algeriense, sp. nov., a novel toxigenic crown rot pathogen of durum wheat from Algeria is nested in the Fusarium burgessii species complex. Mycologia 2018. [DOI: 10.1080/00275514.2018.1425067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Imane Laraba
- Laboratoire de Phytopathologie et de Biologie Moléculaire, Département de Botanique, École Nationale Supérieure Agronomique, Algiers, Algeria
| | - Abdelaziz Keddad
- Laboratoire de Phytopathologie et de Biologie Moléculaire, Département de Botanique, École Nationale Supérieure Agronomique, Algiers, Algeria
| | - Houda Boureghda
- Laboratoire de Phytopathologie et de Biologie Moléculaire, Département de Botanique, École Nationale Supérieure Agronomique, Algiers, Algeria
| | - Nora Abdallah
- Laboratoire de Phytopathologie et de Biologie Moléculaire, Département de Botanique, École Nationale Supérieure Agronomique, Algiers, Algeria
| | - Martha M. Vaughan
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, Illinois 60604-3999
| | - Robert H. Proctor
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, Illinois 60604-3999
| | - Mark Busman
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, Illinois 60604-3999
| | - Kerry O’Donnell
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, Illinois 60604-3999
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Laraba I, Boureghda H, Abdallah N, Bouaicha O, Obanor F, Moretti A, Geiser DM, Kim HS, McCormick SP, Proctor RH, Kelly AC, Ward TJ, O'Donnell K. Population genetic structure and mycotoxin potential of the wheat crown rot and head blight pathogen Fusarium culmorum in Algeria. Fungal Genet Biol 2017; 103:34-41. [DOI: 10.1016/j.fgb.2017.04.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 04/04/2017] [Accepted: 04/05/2017] [Indexed: 10/19/2022]
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