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Molnár O, Vida G, Puskás K. Fusarium Species Associated with Fusarium Head Blight in Hungarian Wheat Fields. PLANT DISEASE 2024; 108:558-562. [PMID: 37743590 DOI: 10.1094/pdis-06-23-1167-sr] [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: 09/26/2023]
Abstract
The species composition of the genus Fusarium associated with Fusarium head blight (FHB) in wheat fields of Hungary in the year 2019 was assessed. Symptomatic wheat heads were collected at 20 geographical locations representing different ecosystems. A total of 256 Fusarium strains were isolated and identified by partial sequences of the translation elongation factor 1-alpha gene and, where required, the second-largest subunit of the DNA-directed RNA polymerase gene. Overall, Fusarium graminearum (58.2%) proved to be the dominant species, followed by F. annulatum (formerly F. proliferatum) (17.2%) and F. verticillioides (7.4%). The presence of all other species, including F. culmorum, in the population was less than 5%. F. graminearum was identified as the main species associated with FHB at 14 sampling sites. Fumonisin-producing F. annulatum, primarily known as the pathogen of maize in Hungary, was detected nearly as frequently as F. graminearum at three locations and dominated at two other sites. F. poae was not found during the survey. F. vorosii, a species that is believed to be of Asian origin and was already found in Hungary in 2002, was identified at two locations.
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Affiliation(s)
- Orsolya Molnár
- Department of Plant Pathology, Plant Protection Institute, HUN-REN Centre for Agricultural Research, Budapest H-1022, Hungary
| | - Gyula Vida
- Cereal Breeding Department, Agricultural Institute, HUN-REN Centre for Agricultural Research, Martonvásár H-2462, Hungary
| | - Katalin Puskás
- Cereal Breeding Department, Agricultural Institute, HUN-REN Centre for Agricultural Research, Martonvásár H-2462, Hungary
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Han S, Wang M, Ma Z, Raza M, Zhao P, Liang J, Gao M, Li Y, Wang J, Hu D, Cai L. Fusarium diversity associated with diseased cereals in China, with an updated phylogenomic assessment of the genus. Stud Mycol 2023; 104:87-148. [PMID: 37351543 PMCID: PMC10282163 DOI: 10.3114/sim.2022.104.02] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 01/17/2023] [Indexed: 11/26/2023] Open
Abstract
Fusarium species are important cereal pathogens that cause severe production losses to major cereal crops such as maize, rice, and wheat. However, the causal agents of Fusarium diseases on cereals have not been well documented because of the difficulty in species identification and the debates surrounding generic and species concepts. In this study, we used a citizen science initiative to investigate diseased cereal crops (maize, rice, wheat) from 250 locations, covering the major cereal-growing regions in China. A total of 2 020 Fusarium strains were isolated from 315 diseased samples. Employing multi-locus phylogeny and morphological features, the above strains were identified to 43 species, including eight novel species that are described in this paper. A world checklist of cereal-associated Fusarium species is provided, with 39 and 52 new records updated for the world and China, respectively. Notably, 56 % of samples collected in this study were observed to have co-infections of more than one Fusarium species, and the detailed associations are discussed. Following Koch's postulates, 18 species were first confirmed as pathogens of maize stalk rot in this study. Furthermore, a high-confidence species tree was constructed in this study based on 1 001 homologous loci of 228 assembled genomes (40 genomes were sequenced and provided in this study), which supported the "narrow" generic concept of Fusarium (= Gibberella). This study represents one of the most comprehensive surveys of cereal Fusarium diseases to date. It significantly improves our understanding of the global diversity and distribution of cereal-associated Fusarium species, as well as largely clarifies the phylogenetic relationships within the genus. Taxonomic novelties: New species: Fusarium erosum S.L. Han, M.M. Wang & L. Cai, Fusarium fecundum S.L. Han, M.M. Wang & L. Cai, Fusarium jinanense S.L. Han, M.M. Wang & L. Cai, Fusarium mianyangense S.L. Han, M.M. Wang & L. Cai, Fusarium nothincarnatum S.L. Han, M.M. Wang & L. Cai, Fusarium planum S.L. Han, M.M. Wang & L. Cai, Fusarium sanyaense S.L. Han, M.M. Wang & L. Cai, Fusarium weifangense S.L. Han, M.M. Wang & L. Cai. Citation: Han SL, Wang MM, Ma ZY, Raza M, Zhao P, Liang JM, Gao M, Li YJ, Wang JW, Hu DM, Cai L (2023). Fusarium diversity associated with diseased cereals in China, with an updated phylogenomic assessment of the genus. Studies in Mycology 104: 87-148. doi: 10.3114/sim.2022.104.02.
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Affiliation(s)
- S.L. Han
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, P. R. China;
| | - M.M. Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
| | - Z.Y. Ma
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, P. R. China;
| | - M. Raza
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
| | - P. Zhao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
| | - J.M. Liang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
| | - M. Gao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, P. R. China;
| | - Y.J. Li
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, P. R. China;
| | - J.W. Wang
- Institute of Biology Co., Ltd., Henan Academy of Science, Zheng Zhou 450008, Henan, P. R. China;
| | - D.M. Hu
- College of Bioscience & Engineering, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, P. R. China
| | - L. Cai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, P. R. China;
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, P. R. China;
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Baek SG, Park JJ, Kim S, Lee MJ, Paek JS, Choi J, Jang JY, Kim J, Lee T. Evaluation of Barley and Wheat Germplasm for Resistance to Head Blight and Mycotoxin Production by Fusarium asiaticum and F. graminearum. THE PLANT PATHOLOGY JOURNAL 2022; 38:637-645. [PMID: 36503192 PMCID: PMC9742790 DOI: 10.5423/ppj.oa.09.2022.0130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/17/2022] [Accepted: 10/17/2022] [Indexed: 06/17/2023]
Abstract
Fusarium head blight (FHB) is one of the most serious diseases in barley and wheat, as it is usually accompanied by the production of harmful mycotoxins in the grains. To identify FHB-resistant breeding resources, we evaluated 60 elite germplasm accessions of barley (24) and wheat (36) for FHB and mycotoxin accumulation. Assessments were performed in a greenhouse and five heads per accession were inoculated with both Fusarium asiaticum (Fa73, nivalenol producer) and F. graminearum (Fg39, deoxynivalenol producer) strains. While the accessions varied in disease severity and mycotoxin production, four wheat and one barley showed <20% FHB severity repeatedly by both strains. Mycotoxin levels in these accessions ranged up to 3.9 mg/kg. FHB severity was generally higher in barley than in wheat, and Fa73 was more aggressive in both crops than Fg39. Fg39 itself, however, was more aggressive toward wheat and produced more mycotoxin in wheat than in barley. FHB severity by Fa73 and Fg39 were moderately correlated in both crops (r = 0.57/0.60 in barley and 0.42/0.58 in wheat). FHB severity and toxin production were also correlated in both crops, with a stronger correlation for Fa73 (r = 0.42/0.82 in barley, 0.70 in wheat) than for Fg39.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Theresa Lee
- Corresponding author: Phone) +82-63-238-3401, FAX) +82-63-238-3840, E-mail)
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Shin YK, Kim DW, Lee SW, Lee MJ, Gi Baek S, Lee T, Yun SH. Functional roles of all five putative hydrophobin genes in growth, development and secondary metabolism in Fusarium graminearum. Fungal Genet Biol 2022; 160:103683. [DOI: 10.1016/j.fgb.2022.103683] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 03/01/2022] [Accepted: 03/05/2022] [Indexed: 11/04/2022]
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Gagkaeva T, Orina A, Gavrilova O. Fusarium head blight in the Russian Far East: 140 years after description of the 'drunken bread' problem. PeerJ 2021; 9:e12346. [PMID: 34760369 PMCID: PMC8557700 DOI: 10.7717/peerj.12346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 09/29/2021] [Indexed: 11/20/2022] Open
Abstract
The first appearance of Fusarium head blight (FHB)—and the beginning of scientific research of this disease—occurred the Far East region of Russia at the end of the 19th century. In the summer of 2019, in the Amur region, which comprises 60–70% of grain production in the Russian Far East, flooding caused a state of emergency. The quality of wheat and barley grains grown under natural conditions of FHB outbreaks, including grain infection, fungal species composition, DNA content of F. graminearum and chemotypes, and the presence of various mycotoxins, was studied. Fusarium infection rates reached extremely high percentages, 51–98%, the majority of which were F. graminearum infections. The amount of F. graminearum DNA in wheat grain samples was higher than in the barley grain samples and averaged 6.1 and 2.1 pg/ng, respectively. The content of deoxynivalenol (DON) in the wheat samples reached 13,343 ppb and in barley reached 7,755 ppb. A multilocus genotyping assay was conducted on the partially sequenced fragments of the translation elongation factor EF-1a, ammonium ligase gene, reductase gene, and 3-O-acetyltransferase gene in 29 Fusarium graminearum sensu lato strains from the grain harvested in the Amur region. All strains from the Far East region were characterized as F. graminearum sensu stricto; 70% were the 15-AcDON chemotype, while the other strains were the 3-AcDON chemotype. According to the results, after 140 years of study of FHB, we are still not very successful in controlling this disease if conditions are favorable for pathogen development. Even at present, some of the grain harvested must be destroyed, as high contamination of mycotoxins renders it unusable.
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Affiliation(s)
- Tatiana Gagkaeva
- Laboratory of Mycology and Phytopathology, All-Russian Institute of Plant Protection, St. Petersburg, Pushkin, Russian Federation
| | - Aleksandra Orina
- Laboratory of Mycology and Phytopathology, All-Russian Institute of Plant Protection, St. Petersburg, Pushkin, Russian Federation
| | - Olga Gavrilova
- Laboratory of Mycology and Phytopathology, All-Russian Institute of Plant Protection, St. Petersburg, Pushkin, Russian Federation
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Obradović A, Stepanovic J, Krnjaja V, Bulajic A, Stanković G, Stevanović M, Stankovic S. First report of Head blight of wheat caused by Fusarium vorosii in Serbia. PLANT DISEASE 2021; 106:758. [PMID: 34236211 DOI: 10.1094/pdis-04-21-0715-pdn] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The cosmopolitan species Fusarium graminearum Schwabe directly reduces yield, as well as grain quality of cereals, due to its ability to synthesize mycotoxins. Previously it was considered to be one species occurring on all continents. However, phylogenetic analysis employing the GCPSR method (Genealogical Concordance Phylogenetic Species Recognition) revealed the existence of 15 phylogenetic species within what is now recognised as the Fusarium graminearum Species Complex (FGSC) (Sarver et al. 2011). During 1996-2008, a MRIZP collection of FGSC isolates was established and isolates originating from wheat (5), maize (3) and barely (2) were selected for further study. Morphological features including the appearance of colonies and macroconidia (average size 38.5-53.1 × 4.6-5.4 µm, No 50) of all 10 isolates on PDA were consistent with descriptions of F. graminearum (O'Donnell et al. 2004, Leslie and Summerell 2006). Total DNA was isolated from mycelium removed from 7-day old colonies of single-spore isolates grown on PDA using the DNeasy Plant Mini Kit (Qiagen, Hilden). Further identification was based on amplification and sequencing of elongation factor TEF-1α, histone H3 and β-tubulin in both directions, with primers ef1/ef2, H3-1a/H3-1b and T1/T22, respectively (Jacobs et al. 2010). The sequences were deposited in NCBI under accession numbers MF974399 - MF974408 (TEF-1α), MG063783 - MG063792 (β-tubulin) and MF999139 - MF999148 (histone H3). Sequence analysis was performed using BLAST while genetic similarity was calculated using MEGA 6.0 software. Isolate 1339 originating from wheat (collected at the locality of Kikinda in 2006), shared 100% nucleotide identity with TEF-1α (DQ459745), histone H3 (DQ459728) and β-tubulin (DQ459643) of F. vorosii isolate NRRL37605 (Starkey et al. 2007). The remaining nine isolates were identified as F. graminearum as they shared 99% to 100% nucleotide similarity with F. graminearum NRRL 28439 (O'Donnell et al. 2004). Pathogenicity was tested using artificial inoculations of spikes during wheat flowering (Mesterhazy et al. 1999). Thirty classes were inoculated with each isolate, in three replicates. Inoculum was prepared from 7-day colonies on PDA, and 30 ml of a conidia suspension (1x105 conidia/ml) was used. Control plants were inoculated with sterile water. Three weeks after inoculation, typical Fusarium head blight symptoms were visible on inoculated plants, from which all 10 isolates were successfully reisolated. Control spikes remained symptomless. Disease severity was estimated on the 1-7 scale (Blandino et al. 2012). Average pathogenicity of the F. vorosii isolate 1339 was 1.9, and 2.4 -5.1 of F. graminearum isolates. Toxin production was determined using gas chromatography-tandem mass spectrometry. Kernels inoculated with the 10 isolates were ground and tested for the presence of deoxynivalenol (DON) and its acetyl derivatives 3ADON, 15ADON and NIV. F. vorosii isolate 1339 possessed the 15ADON chemotype, as well as eight F. graminearum isolates, while only one F. graminearum isolate was 3ADON chemotype. To date, F. vorosii has only been detected in Hungary on wheat (Toth et al. 2005) and Korea on barley, corn and rice (Lee et al. 2016). This is the first report of F. vorosii in Serbia, which is of great importance, because it indicates the spread of this toxigenic species. Further studies should be focused on determining the distribution, aggressiveness and toxicological profile of F. vorosii.
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Affiliation(s)
- Ana Obradović
- Maize Research Institute Zemun Polje, 229787, Phytopathology, Slobodana Bajića 1, Beograd, Serbia, 11185;
| | - Jelena Stepanovic
- Institute of Pesticides and Environmental Protection, 229750, Beograd, Beograd, Serbia;
| | - Vesna Krnjaja
- Institute for Animal Husbandry, 229801, plant pathology, Zemun, Beograd, Serbia;
| | - Aleksandra Bulajic
- University of Belgrade Faculty of Agriculture, 186112, Department of Phytopathology, Beograd, Serbia;
| | - Goran Stanković
- Maize Research Institute Zemun Polje, 229787, Plant Breeding, Beograd, Serbia;
| | - Milan Stevanović
- Maize Research Institute Zemun Polje, 229787, Plant Breeding, Beograd, Serbia;
| | - Slavica Stankovic
- Maize Research Institute Zemun Polje, 229787, Laboratory of Phytopathology, Beograd, Serbia;
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Laraba I, McCormick SP, Vaughan MM, Geiser DM, O’Donnell K. Phylogenetic diversity, trichothecene potential, and pathogenicity within Fusarium sambucinum species complex. PLoS One 2021; 16:e0245037. [PMID: 33434214 PMCID: PMC7802971 DOI: 10.1371/journal.pone.0245037] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/21/2020] [Indexed: 01/01/2023] Open
Abstract
The Fusarium sambucinum species complex (FSAMSC) is one of the most taxonomically challenging groups of fusaria, comprising prominent mycotoxigenic plant pathogens and other species with various lifestyles. Among toxins produced by members of the FSAMSC, trichothecenes pose the most significant threat to public health. Herein a global collection of 171 strains, originating from diverse hosts or substrates, were selected to represent FSAMSC diversity. This strain collection was used to assess their species diversity, evaluate their potential to produce trichothecenes, and cause disease on wheat. Maximum likelihood and Bayesian analyses of a combined 3-gene dataset used to infer evolutionary relationships revealed that the 171 strains originally received as 48 species represent 74 genealogically exclusive phylogenetically distinct species distributed among six strongly supported clades: Brachygibbosum, Graminearum, Longipes, Novel, Sambucinum, and Sporotrichioides. Most of the strains produced trichothecenes in vitro but varied in type, indicating that the six clades correspond to type A, type B, or both types of trichothecene-producing lineages. Furthermore, five strains representing two putative novel species within the Sambucinum Clade produced two newly discovered type A trichothecenes, 15-keto NX-2 and 15-keto NX-3. Strains of the two putatively novel species together with members of the Graminearum Clade were aggressive toward wheat when tested for pathogenicity on heads of the susceptible cultivar Apogee. In planta, the Graminearum Clade strains produced nivalenol or deoxynivalenol and the aggressive Sambucinum Clade strains synthesized NX-3 and 15-keto NX-3. Other strains within the Brachygibbosum, Longipes, Novel, Sambucinum, and Sporotrichioides Clades were nonpathogenic or could infect the inoculated floret without spreading within the head. Moreover, most of these strains did not produce any toxin in the inoculated spikelets. These data highlight aggressiveness toward wheat appears to be influenced by the type of toxin produced and that it is not limited to members of the Graminearum Clade.
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Affiliation(s)
- Imane Laraba
- USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, Mycotoxin Prevention and Applied Microbiology Research Unit. 1815 N. University, Peoria, IL, United States of America
| | - Susan P. McCormick
- USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, Mycotoxin Prevention and Applied Microbiology Research Unit. 1815 N. University, Peoria, IL, United States of America
| | - Martha M. Vaughan
- USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, Mycotoxin Prevention and Applied Microbiology Research Unit. 1815 N. University, Peoria, IL, United States of America
| | - David M. Geiser
- Department of Plant Pathology and Environmental Microbiology, Pennsylvania State University, University Park, Pennsylvania, PA, United States of America
| | - Kerry O’Donnell
- USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, Mycotoxin Prevention and Applied Microbiology Research Unit. 1815 N. University, Peoria, IL, United States of America
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Jang JY, Baek SG, Choi JH, Kim S, Kim J, Kim DW, Yun SH, Lee T. Characterization of Nivalenol-Producing Fusarium asiaticum That Causes Cereal Head Blight in Korea. THE PLANT PATHOLOGY JOURNAL 2019; 35:543-552. [PMID: 31832035 PMCID: PMC6901258 DOI: 10.5423/ppj.oa.06.2019.0168] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/14/2019] [Accepted: 08/26/2019] [Indexed: 06/10/2023]
Abstract
Fusarium asiaticum of the F. graminearum species complex causes head blight in small-grain cereals. The nivalenol (NIV) chemotypes of F. asiaticum is more common than the deoxynivalenol (DON) chemotypes of F. asiaticum or F. graminearum in Korea. To understand the prevalence of F. asiaticum-NIV in Korean cereals, we characterized the biological traits of 80 cereal isolates of F. asiaticum producing NIV or 3-acetyl-deoxynivalenol (3-ADON), and 54 F. graminearum with 3-ADON or 15-acetyl-deoxynivalenol (15-ADON). There was no significant difference in mycelial growth between the chemotypes, but F. asiaticum isolates grew approximately 30% faster than F. graminearum isolates on potato dextrose agar. Sexual and asexual reproduction capacities differed markedly between the two species. Both chemotypes of F. graminearum (3-ADON and 15-ADON) produced significantly higher numbers of perithecia and conidia than F. asiaticum-NIV. The highest level of mycotoxins (sum of trichothecenes and zearalenone) was produced by F. graminearum-3-ADON on rice medium, followed by F. graminearum-15-ADON, F. asiaticum-3-ADON, and F. asiaticum-NIV. Zearalenone levels were correlated with DON levels in some chemotypes, but not with NIV levels. Disease assessment on barley, maize, rice, and wheat revealed that both F. asiaticum and F. graminearum isolates were virulent toward all crops tested. However, there is a tendency that virulence levels of F. asiaticum-NIV isolates on rice were higher than those of F. graminearum isolates. Taken together, the phenotypic traits found among the Korean F. asiaticum-NIV isolates suggest an association with their host adaptation to certain environments in Korea.
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Affiliation(s)
- Ja Yeong Jang
- Microbial Safety Team, National Institute of Agricultural Sciences, Wanju 55365,
Korea
| | - Seul Gi Baek
- Microbial Safety Team, National Institute of Agricultural Sciences, Wanju 55365,
Korea
| | - Jung-Hye Choi
- Microbial Safety Team, National Institute of Agricultural Sciences, Wanju 55365,
Korea
| | - Sosoo Kim
- Microbial Safety Team, National Institute of Agricultural Sciences, Wanju 55365,
Korea
| | - Jeomsoon Kim
- Microbial Safety Team, National Institute of Agricultural Sciences, Wanju 55365,
Korea
| | - Da-Woon Kim
- Department of Medical Biotechnology, Soonchunhyanag University, Asan 31538,
Korea
| | - Sung-Hwan Yun
- Department of Medical Biotechnology, Soonchunhyanag University, Asan 31538,
Korea
| | - Theresa Lee
- Microbial Safety Team, National Institute of Agricultural Sciences, Wanju 55365,
Korea
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O’Donnell K, McCormick SP, Busman M, Proctor RH, Ward TJ, Doehring G, Geiser DM, Alberts JF, Rheeder JP. Marasas et al. 1984 “Toxigenic Fusarium Species: Identity and Mycotoxicology” revisited. Mycologia 2018; 110:1058-1080. [DOI: 10.1080/00275514.2018.1519773] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- 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 61604-3999
| | - Susan P. McCormick
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, Illinois 61604-3999
| | - Mark Busman
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, Illinois 61604-3999
| | - 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 61604-3999
| | - Todd J. Ward
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, Illinois 61604-3999
| | - Gail Doehring
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, Illinois 61604-3999
| | - David M. Geiser
- Department of Plant Pathology and Environmental Microbiology, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Johanna F. Alberts
- Mycotoxicology and Chemoprevention Research Group, Institute of Biomedical and Microbial Biotechnology (IBMB), Cape Peninsula University of Technology, Bellville 7535, South Africa
| | - John P. Rheeder
- Mycotoxicology and Chemoprevention Research Group, Institute of Biomedical and Microbial Biotechnology (IBMB), Cape Peninsula University of Technology, Bellville 7535, South Africa
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