Head infection and accumulation of Fusarium toxins in kernels of 12 barley genotypes inoculated with Fusarium graminearum isolates of two chemotypes

• Published in: European journal of plant pathology Vol. 103; no. 1; pp. 85 - 90
• Main Authors: Perkowski, J. (Poznan Agricultural Univ. (Poland). Dept. of Chemistry), Kiecana, I, Schumacher, U, Mueller, H.M, Chelkowski, J, Golinski, P
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer 01.01.1997; Springer Nature B.V
• Subjects: Agronomy. Soil science and plant productions; AMANDE DE LA GRAINE; Barley; Biological and medical sciences; Chemical analysis; Crop diseases; DISEASE RESISTANCE; Fundamental and applied biological sciences. Psychology; Genetics and breeding of economic plants; GENOTIPOS; GENOTYPE; GENOTYPES; GERMEN; GIBBERELLA ZEAE; HORDEUM VULGARE; KERNELS; Pest resistance; Plant pathogens; RESISTANCE AUX MALADIES; RESISTENCIA A LA ENFERMEDAD; TOXINAS; TOXINE; TOXINS; Varietal selection. Specialized plant breeding, plant breeding aims; Poland; Europe; Monocotyledones; Plant pathogen; Fusarium graminearum; Grains; Hordeum vulgare; Mycotoxin; Genotype; Field experiment; Fungus resistance; Fungi; Toxin; Breeding line; Gramineae; Genetic improvement; Angiospermae; Spermatophyta; Fungi Imperfecti; Thallophyta
• ISSN: 0929-1873; 1573-8469
• DOI: 10.1023/A:1008640817778

Twelve barley genotypes were inoculated with two F. graminearum isolates of different chemotype I^sub 1^ #148 (producing nivalenol/deoxynivalenol) and I^sub 2^ #108 (deoxynivalenol/acetyldeoxynivalenol). For both I^sub 1^ and I^sub 2^ isolates, respectively, reductions (%) in number of kernels head^sup -1^ 10.6 and 14.3; yield 39.6 and 35.7; weight of 1000 kernels 36.9 and 23.2 were observed in inoculated plants from control values. Chemical analysis revealed the presence (average concentration mg kg^sup -1^) of deoxynivalenol (1.3) and nivalenol (3.2) in kernels of all genotypes inoculated with the I^sub 1^ isolate, and zearalenone (0.2) in three samples. After inoculation with the I^sub 2^ isolate, deoxynivalenol (37.8) and zearalenone (0.4) were found in kernels of all genotypes, while 3-acetyldeoxynivalenol and 15-acetyldeoxynivalenol, respectively, were determined in five and four samples only. No significant correlation between examined characteristics was found for either the I^sub 1^ or I^sub 2^ isolate. The results obtained contribute information on the accumulation of toxins in cereal grain inoculated with F. graminearum isolates of different chemotypes.[PUBLICATION ABSTRACT]