Abstract
Fusarium head blight (FHB) is a wheat disease caused by fungi of the genus Fusarium. The aim of the study was to find relationships between the weather conditions in the experimental years and the locations and the amount of F. culmorum DNA and trichothecene genotypes, as well as the proportions between them. A three-year field experiment (2017, 2018 and 2019) was established in two locations (Poznań, Radzików). The DNA of F. culmorum was detected in all grain samples in an average amount of 20,124 pg per 1 μg of wheat DNA. The average amount of DNA from the 3ADON genotype was 4879 pg/μg and the amount of DNA from the NIV genotype was 3330 pg/μg. Weather conditions strongly affected the amount of DNA of F. culmorum and trichothecene genotypes detected in the grain. In the three experimental years, a high variability was observed in the coefficients of correlation between DNA concentrations and the FHB index, FDK, ergosterol and the corresponding toxins. There were significant correlations between disease incidence, fungal biomass (quantified as the total amount of fungal DNA or DNA trichothecene genotypes) and toxins (DON, 3AcDON and NIV) concentrations. The 3ADON trichothecene genotype dominated over the NIV genotype (ratio 1.5); however, this varied greatly depending on environmental conditions.
Funder
Ministry of Agriculture and Rural Development
Subject
Infectious Diseases,Microbiology (medical),General Immunology and Microbiology,Molecular Biology,Immunology and Allergy
Reference62 articles.
1. Resistance in wheat to Fusarium infection and trichothecene formation;Snijders;Toxicol. Lett.,2004
2. Toxigenic Fusarium species and mycotoxins associated with head blight in small-grain cereals in Europe;Bottalico;Eur. J. Plant Pathol.,2002
3. Fusarium head blight of cereals in Denmark: Species complex and related mycotoxins;Nielsen;Phytopathology,2011
4. Fusarium avenaceum—The North European situation;Uhlig;Int. J. Food Microbiol.,2007
5. Canty, S.M., Boring, T., Wardwell, J., and Ward, R.W. (2004, January 11–15). Real-time PCR detection and quantification of Fusarium poae as compared to mycotoxin production in grains in Finland. Proceedings of the 2nd International Symposium on Fusarium Head Blight Incorporating the 8th European Fusarium Seminar, Orlando, FL, USA.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献