Greenhouse and Field Evaluation of Biological Control of Fusarium Head Blight on Durum Wheat

Plant Disease
David A SchislerPatricia J Slininger

Abstract

Fusarium head blight (FHB) is a devastating disease that causes extensive yield and quality losses to wheat and barley. In durum wheat, the pathogen-produced toxin deoxynivalenol (DON) is retained in semolina at ˜50%, and the causal agent of FHB, Gibberella zeae, has a strong adverse effect on pasta color. Two bacteria and two yeast strains with known efficacy against G. zeae on hexaploid wheats were produced in liquid culture and assayed on two cultivars of durum wheat in greenhouse bioassays. All antagonists reduced FHB severity on cultivar Renville, and three of the four reduced severity on cultivar Ben, with Bacillus subtilis strain AS 43.3 decreasing FHB severity by as much as 90%. In separate greenhouse bioassays, the car-bon:nitrogen ratio of the medium used to produce antagonists did not consistently influence antagonist efficacy. All antagonist/production medium combinations but one were effective in reducing disease on both durum cultivars. Of six antagonists tested at field sites, Cryptococcus sp. OH 71.4 and C. nodaensis OH 182.9 reduced disease severity by as much as 57% in Peoria, IL, while Cryptococcus sp. OH 181.1 reduced disease severity by as much as 59% in a trial at Langdon, ND. Antagonists did not influence...Continue Reading

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Citations

Nov 1, 2015·BMC Microbiology·Loredana BaffoniDiana Di Gioia
Oct 24, 2008·Phytopathology·Brian B McSpadden Gardener
Sep 3, 2011·The Journal of Microbiology·Christopher A DunlapSteven F Vaughn
Oct 24, 2008·Phytopathology·D A SchislerM A Jackson
Jul 21, 2011·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·G JardA Lebrihi
Sep 26, 2009·Journal of Food Protection·Bulent Kabak, Alan D W Dobson
Nov 28, 2014·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·S N ChulzeJ Köhl
Dec 1, 2012·Plant Disease·Marcia McMullenDave Van Sanford
Sep 26, 2019·Frontiers in Microbiology·Gabriele SchiroMarina E H Müller
Aug 8, 2020·Frontiers in Microbiology·Marie LegeinSarah Lebeer
Dec 18, 2020·Frontiers in Cellular and Infection Microbiology·Kasun M ThambugalaItthayakorn Promputtha

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