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ARS Home » Midwest Area » Peoria, Illinois » National Center for Agricultural Utilization Research » Crop Bioprotection Research » Research » Publications at this Location » Publication #371093
Research Project: Development of New Production Methodologies for Biocontrol Agents and Fastidious Microbes to Improve Plant Disease Management

Location: Crop Bioprotection Research

Title: Fusarium graminearum sensu stricto and Fusarium poae isolated from different barley regions in Argentina and biocontrol in vitro, under field conditions and during the micromalting process

Author
item CHIOTTA, M - National University Of Rio Cuarto
item ALANIZ ZANON, M - National University Of Rio Cuarto
item AGUINAGA, A - Cerveceria Y Malteria Quilmes
item GRIBALDO, A - Cerveceria Y Malteria Quilmes
item YERKOVICH, N - National University Of Rio Cuarto
item CANTORO, R - National University Of Rio Cuarto
item PALACIOS, S - National University Of Rio Cuarto
item PALAZZINI, J - National University Of Rio Cuarto
item SULYOK, M - University Of Natural Resources & Applied Life Sciences - Austria
item VINDEROLA, G - Instituto De Lactologia Industrial (INLAIN) Conicet-Unl
item Dunlap, Christopher

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 10/21/2020
Publication Date: 10/21/2020
Citation: Chiotta, M.L., Alaniz Zanon, M.S., Aguinaga, A., Gribaldo, A., Yerkovich, N., Cantoro, R., Palacios, S., Palazzini, J., Sulyok, M., Vinderola, G., Dunlap, C.A. 2020. Fusarium graminearum sensu stricto and Fusarium poae isolated from different barley regions in Argentina and biocontrol in vitro, under field conditions and during the micromalting process. Meeting Abstract. [abstract].

Interpretive Summary:

Technical Abstract: Barley (Hordeum vulgare L.) is the second most important winter crop after wheat in Argentina, and is mainly used for the malt production in beer manufacture. Fusarium species, mainly Fusarium graminearum sensu stricto and F. poae, cause Fusarium Head Blight (FHB) in barley and produce reductions in quality and safety pre-harvest and during the malting process due to fungal growth and mycotoxin contamination. The aims of the present study were- to evaluate incidence of F. graminearum species complex and F. poae in different barley-growing regions from Argentina, - to determine their toxigenic ability, -to evaluate the biocontrol activity of B. velezensis RC218 to reduce F. graminearum ss and DON accumulation under field conditions and during micromalting process –to select new potential biocontrol agents to control F. graminearum ss and F. poae growth under in vitro conditions. Data showed that F. graminearum ss was isolated with high incidence in all regions during 2016 and 2017 harvest seasons. The chemotype of the strains was DON-15ADON and DON-3ADON, also the strains were producers of ZEA and their derivatives. NX-2 chemotype was detected for the first time from strains isolated from barley in Argentina. Fusarium poae was isolated in two regions and were NIV producers, besides other toxins produced by the strains were DAS, NEO, MAS and T2-tetraol. The application of B. velezensis RC218 in vitro, under field conditions and during micromalting process showed reduction of F. graminearum ss fungal growth and DON accumulation. Some new potential biocontrol agents were selected such as Lactobacillus plantarum and B. subtillis subsp. inaquasorum.