Effect of Extended Irrigation and Host Resistance on Deoxynivalenol Accumulation in <i>Fusarium</i>-Infected Wheat

Culler, M. D.; Miller-Garvin, Jill; Dill‐Macky, Ruth

doi:10.1094/pdis-91-11-1464

Cited by 46 publications

(33 citation statements)

References 41 publications

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“…This is in agreement with the study of Culler et al (2007), who reported a lower DON content in wheat from fields/plots treated with extended periods of irrigation from flowering to harvest when compared to control. Leaching of DON from spikes may occur at high rainfall (Cowger et al 2009;Gautam and DillMacky 2012), and so precipitation during grain ripening in oat may similarly impact DON accumulation in oat.…”

Section: Association Between Don Content and Weather Conditions At DIsupporting

confidence: 93%

“…The mycotoxin content in grain at harvest is variable and depends largely on the interaction of plant growth stage and weather (Hooker et al 2002;Culler et al 2007;Klem et al 2007;Cowger et al 2009;Franz et al 2009;Gourdain et al 2011;Landschoot et al 2012b;Xu et al 2013Xu et al , 2014. Weather summarisations are therefore frequently calculated within different temporal time intervals (Coakley et al 1982), fixed for the number of days (7 days, 10 days etc.…”

Section: Introductionmentioning

confidence: 99%

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DON content in oat grains in Norway related to weather conditions at different growth stages

et al. 2016

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High concentrations of the mycotoxin deoxynivalenol (DON), produced by Fusarium graminearum have occurred frequently in Norwegian oats recently. Early prediction of DON levels is important for farmers, authorities and the Cereal Industry. In this study, the main weather factors influencing mycotoxin accumulation were identified and two models to predict the risk of DON in oat grains in Norway were developed: (1) as a warning system for farmers to decide if and when to treat with fungicide, and (2) for authorities and industry to use at harvest to identify potential food safety problems. Oat grain samples from farmers' fields were collected together with weather data (2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013).A mathematical model was developed and used to estimate phenology windows of growth stages in oats (tillering, flowering etc.). Weather summarisations were then calculated within these windows, and the Spearman rank correlation factor calculated between DONcontamination in oats at harvest and the weather summarisations for each phenological window. DON contamination was most clearly associated with the weather conditions around flowering and close to harvest. Warm, rainy and humid weather during and around flowering increased the risk of DON accumulation in oats, as did dry periods during germination/seedling growth and tillering. Prior to harvest, warm and humid weather conditions followed by cool and dry conditions were associated with a decreased risk of DON accumulation. A prediction model, including only pre-flowering weather conditions, adequately forecasted risk of DON contamination in oat, and can aid in decisions about fungicide treatments.

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Section: Association Between Don Content and Weather Conditions At DIsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

DON content in oat grains in Norway related to weather conditions at different growth stages

et al. 2016

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“…Excessive moisture in irrigated wheat fields during flowering and early grain fill period is a favorable condition for Fusarium infection [68,69]. Nevertheless, the effect of moisture in increasing the levels of DON contamination is not consistent among published studies [69][70][71][72][73].…”

Section: Preharvest Mitigation Measures and Managementmentioning

confidence: 99%

Mycotoxins in Wheat and Mitigation Measures

Cheli¹,

Pinotti²,

Novacco³

et al. 2017

Wheat Improvement, Management and Utilization

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Latest estimates for world cereal production in 2015 and EU-28 production in 2014 are approximately 2540 and 323 mil tons, respectively. The FAO estimated that the global wheat consumption is about 66 kg/per capita. Among the most important risks associated with wheat consumption are mycotoxins. It has been estimated that up to 25% of the world's crops grown for food and feed may be contaminated with mycotoxins. Despite efforts in controlling fungal growth, mycotoxin co-contamination represents an unavoidable risk, occurring pre-and postharvest and resulting in reduced nutritional value and possible risks for human and animal health. In addition to health risks, mycotoxins have a detrimental effect on the quality and the processing performance of wheat. Mitigation measures to manage the challenge of mycotoxins in wheat include strategies at pre-and postharvest. Preharvest events are predominantly dictated by environmental factors and good agronomic/cultural practices, whereas storage and processing are the major areas where contamination can be prevented at postharvest. Integrating as many management options as possible may minimize the risk of mycotoxin contamination in wheat and wheat products.

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“…DON levels are strongly influenced by host genotype as well as weather later in the grain fill period. Higher DON accumulates with extended periods of moisture post-anthesis [39,40]. However, some host genotypes react to prolonged exposure to moisture with a decrease in DON content [41].…”

Section: Fhb Reduce Wheat Yield and Qualitymentioning

confidence: 99%

Controlling fusarium head blight of wheat (triticum aestivum L.) with genetics

Zhang¹,

Luo²,

Ren³

et al. 2011

ABB

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Fusarium head blight, one of the most destructive diseases of wheat (Triticum aestivum L.), results in significant economic losses from reduced grain yield and quality. In recent decades, the disease has been frequently recorded, especially under warm and wet climatic conditions. Genetic resistance has engaged plant breeders because the use of resistant cultivars is the most economical, effective, and environmentally friendly method of control. In the present paper, we summarize the research on resistance genetics of Fusarium head blight, suggest a new method for evaluating Fusarium head blight resistance, and recommend strategies for creating and developing new sources of resistance to Fusarium head blight through the use of alien genes and chromosomal segments.

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Effect of Extended Irrigation and Host Resistance on Deoxynivalenol Accumulation in Fusarium-Infected Wheat

Cited by 46 publications

References 41 publications

DON content in oat grains in Norway related to weather conditions at different growth stages

DON content in oat grains in Norway related to weather conditions at different growth stages

Mycotoxins in Wheat and Mitigation Measures

Controlling fusarium head blight of wheat (triticum aestivum L.) with genetics

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