Quantitative Modeling of Climate Change Impacts on Mycotoxins in Cereals: A Review

Liu, Cheng; Fels‐Klerx, H.J. van der

doi:10.3390/toxins13040276

Cited by 43 publications

(31 citation statements)

References 20 publications

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“…The presence of mycotoxins in the fresh NFI corn confirmed the results of a previous study and survey on the mycotoxins in silages 15 . Liu and Van der Fels‐Klerx 16 reported that drought stress enhanced the production of aflatoxins by Aspergillus flavus in corn, and humid and warm conditions favored the production of DON by Fusarium species in wheat. Magan et al 17 .…”

Section: Discussionsupporting

confidence: 88%

Effects of hexanoic acid on microbial communities, fermentation, and hygienic quality of corn silages infested with toxigenic fungi

Wang

Yang

et al. 2021

J Sci Food Agric

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BACKGROUND: This study aims to reveal the effects of hexanoic acid on the microbial communities, fermentation, and the hygienic quality of corn silages with or without fungal infection. Fungal-infested (FI) and non-infested (NFI) whole-crop corn samples were separately ensiled without (control, CON) or with hexanoic acid (Hex, 90% purity) at 0.2 g•kg −1 fresh weight (FW).RESULT: The addition of Hex accelerated the pH decline during the first 5 days of ensiling regardless of fungal infestation. The lactic acid (LA) concentration in Hex silages was lower than that in CON during 45 days of ensiling; however the FI-Hex silage had the highest LA concentration among treatments on day 90. The Hex silage showed lower aflatoxin B 1 (AFB 1 ), zearalenone (ZEA), and deoxynivalenol (DON) concentrations than CON for FI silages. On day 5, the addition of Hex decreased the relative abundance of Klebsiella, Pantoea, and Enterobacter compared with CON, regardless of fungal infestation. This inhibitory effect lasted until day 90 for NFI silages but disappeared for FI silages on day 90. The fungal infestation resulted in the accumulation of Candida (34.05%) and Wickerhamomyces (19.46%). Hex decreased the relative abundance of Asperigillus, Issatchenkia, and Penicillium for NFI silages on day 5; however, its inhibitory effects were not observed in FI silages on day 5. CONCLUSION: Fungal infestation was associated with poor fermentation and hygienic quality of corn silage. Adding Hex accelerated the pH decline and maintained the antifungal activity until 90 days of ensiling, attenuating adverse effects of fungal infestation on the fermentation and preventing the accumulation of mycotoxins in corn silages.

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Section: Discussionsupporting

confidence: 88%

Effects of hexanoic acid on microbial communities, fermentation, and hygienic quality of corn silages infested with toxigenic fungi

Wang

Yang

et al. 2021

J Sci Food Agric

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“…Grain protein and mineral content decline at elevated CO 2 in major C3 photosynthetic cereal crops such as wheat, negatively impacting end-use quality and ultimately food security 5 – 8 . Furthermore, climate change is predicted to increase the risk of mycotoxin contamination associated with fungal diseases such as Fusarium Head Blight (FHB) 9 , and elevated CO 2 may provide a strain-specific pathogenic advantage on hosts with greater losses in nutritional content 10 . FHB outbreaks can substantially diminish grain yield and end-use quality due to sterile florets and withered, mycotoxin contaminated grain kernels 11 .…”

Section: Introductionmentioning

confidence: 99%

Fusarium head blight resistance exacerbates nutritional loss of wheat grain at elevated CO2

Hay

Anderson

McCormick

et al. 2022

Sci Rep

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The nutritional integrity of wheat is jeopardized by rapidly rising atmospheric carbon dioxide (CO2) and the associated emergence and enhanced virulence of plant pathogens. To evaluate how disease resistance traits may impact wheat climate resilience, 15 wheat cultivars with varying levels of resistance to Fusarium Head Blight (FHB) were grown at ambient and elevated CO2. Although all wheat cultivars had increased yield when grown at elevated CO2, the nutritional contents of FHB moderately resistant (MR) cultivars were impacted more than susceptible cultivars. At elevated CO2, the MR cultivars had more significant differences in plant growth, grain protein, starch, fructan, and macro and micro-nutrient content compared with susceptible wheat. Furthermore, changes in protein, starch, phosphorus, and magnesium content were correlated with the cultivar FHB resistance rating, with more FHB resistant cultivars having greater changes in nutrient content. This is the first report of a correlation between the degree of plant pathogen resistance and grain nutritional content loss in response to elevated CO2. Our results demonstrate the importance of identifying wheat cultivars that can maintain nutritional integrity and FHB resistance in future atmospheric CO2 conditions.

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“…Furthermore, a recent study by Albert et al [29], with a very similar acetonitrile:water approach, proved that this method is also suitable for analysis of aflatoxins in soil. This may be of particular interest, since climate change may cause a spread of Aspergillus to European regions where Fusarium is currently predominant [60,61].…”

Section: Trueness and Precisionmentioning

confidence: 99%

Fusarium Mycotoxins in Maize Field Soils: Method Validation and Implications for Sampling Strategy

Kenngott

Albert

Meyer-Wolfarth

et al. 2022

Toxins

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While mycotoxins are generally regarded as food contamination issues, there is growing interest in mycotoxins as environmental pollutants. The main sources of trichothecene and zearalenone mycotoxins in the environment are mainly attributed to Fusarium infested fields, where mycotoxins can wash off in infested plants or harvest residues. Subsequently, mycotoxins inevitably enter the soil. In this context, investigations into the effects, fate, and transport are still needed. However, there is a lack of analytical methods used to determine Fusarium toxins in soil matrices. We aimed to validate an analytical method capable of determining the toxins nivalenol (NIV), deoxynivalenol (DON), 15-acetyl-deoxynivalenol (15-AcDON), and zearalenone (ZEN), at environmentally relevant concentrations, in five contrasting agricultural soils. Soils were spiked at three levels (3, 9 and 15ng/g), extracted by solid-liquid extraction assisted with ultrasonication, using a generic solvent composition of acetonitrile:water 84:16 (v:v) and measured by LC–HRMS. Method validation was successful for NIV, DON, and 15-AcDON with mean recoveries > 93% and RSDr < 10%. ZEN failed the validation criteria. The validated method was applied to eight conventionally managed maize field soils during harvest season, to provide a first insight into DON, NIV, and 15-AcDON levels. Mycotoxins were present in two out of eight sampled maize fields. Soil mycotoxin concentrations ranged from 0.53ng/g–19.4ng/g and 0.8ng/g–2.2ng/g for DON and NIV, respectively. Additionally, we found indication that “hot-spot” concentrations were restricted to small scales ( <5cm) with implications for field scale soil monitoring strategies.

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Quantitative Modeling of Climate Change Impacts on Mycotoxins in Cereals: A Review

Cited by 43 publications

References 20 publications

Effects of hexanoic acid on microbial communities, fermentation, and hygienic quality of corn silages infested with toxigenic fungi

Effects of hexanoic acid on microbial communities, fermentation, and hygienic quality of corn silages infested with toxigenic fungi

Fusarium head blight resistance exacerbates nutritional loss of wheat grain at elevated CO2

Fusarium Mycotoxins in Maize Field Soils: Method Validation and Implications for Sampling Strategy

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