Impact of fungicide application to control T-2 and HT-2 toxin contamination and related Fusarium sporotrichioides and F. langsethiae producing species in durum wheat

Somma, Stefania; Scarpino, Valentina; Quaranta, F.; Logrieco, Antonio F.; Reyneri, Amedeo; Blandino, Massimo; Moretti, Antonio

doi:10.1016/j.cropro.2022.106020

Cited by 4 publications

(3 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As trichothecenes of types A and B are mainly produced by F. graminearum , F. culmorum , F. langsethiae , F. poae , and F. sporotrichioides [ 18 , 19 ]. Other researchers have also noticed a positive correlation between F. culmorum , F. graminearum occurrence, and type A and B trichothecenes concentrations and between F. sporotrichioides occurrence and T-2 and HT-2 concentrations in maize and other cereals [ 42 , 43 , 44 ].…”

Section: Discussionmentioning

confidence: 96%

The Effect of Ustilago maydis and Delayed Harvesting on A- and B-Type Trichothecene Concentrations in Maize Grain

Venslovas

Mankevičienè

Kochiieru

et al. 2023

JoF

View full text Add to dashboard Cite

The aim of this study was to investigate whether, in the context of a higher incidence of Ustilago maydis and Fusarium spp. at optimal and delayed harvest times, a higher incidence of mycotoxin contamination in maize grains could be expected. The field experiment was carried out at the Lithuanian Research Centre for Agriculture and Forestry experimental fields over three consecutive years (2020–2022). Two maize hybrids (Duxxbury and Lapriora) with different FAO numbers were used. The experimental design in the field was a randomized complete block design. Harvesting took place at three different times: first at physiological maturity, and then 10 (±2) and 20 (±2) days after the first harvest. Each hybrid had four repetitions at different harvest times. The U. maydis infection was only detected in 2021 and after the first harvest cobs were further divided into four different groups with four repetitions: healthy cobs, cobs visually infected with Fusarium spp., cobs visually infected with common smut, and cobs visually infected with both pathogens. No U. maydis-damaged maize cobs were found in 2020 and 2022. The levels of Fusarium microscopic fungi in maize grains were also from 4 to 16 times higher in 2021 than in 2020 and 2022. Harvest delays in 2020 led to a significant deoxynivalenol concentration increase in the Duxxbury hybrid and an HT-2 concentration increase in the Lapriora hybrid. In 2021, deoxynivalenol, 3-acetyl-deoxynivalenol, 15-acetyl-deoxynivalenol, and HT-2 concentrations significantly rose in both hybrids, but the T-2 concentration significantly increased only in the Lapriora hybrid. Deoxynivalenol concentrations were, respectively, 110 and 14.6 times higher than in cobs only infected with Fusarium spp. or U. maydis. Concentrations of 15-acetyl-deoxynivalenol were, respectively, 60, 67, and 43 times higher than in asymptomatic cobs and cobs only infected with Fusarium spp. or U. maydis. Cobs contaminated with both pathogens also had higher concentrations of 3-acetyl-deoxynivalenol. T-2 and HT-2 were detected in maize grains harvested from cobs infected only with Fusarium spp. The presence of U. maydis and Fusarium fungi in maize cobs, along with harvest delays, led to significant increases in mycotoxin concentrations, highlighting the importance of timely harvesting and pathogen management to mitigate mycotoxin contamination in maize grains.

show abstract

Section: Discussionmentioning

confidence: 96%

The Effect of Ustilago maydis and Delayed Harvesting on A- and B-Type Trichothecene Concentrations in Maize Grain

Venslovas

Mankevičienè

Kochiieru

et al. 2023

JoF

View full text Add to dashboard Cite

show abstract

“…18 The effect of triazole fungicides on mycotoxins can be substantial. In wheat, prothioconazole and metconazole effectively reduced the contamination of A-type trichothecenes, such as T-2/HT-2 produced by Fusarium sporotrichioides and Fusarium langsethiae 19 and DON produced by F. graminearum. 20 Fumonisin contamination in maize is also reduced by prothioconazole and tebuconazole.…”

Section: Introductionmentioning

confidence: 99%

Mechanism Insights into the Enantioselective Bioactivity and Fumonisin Biosynthesis of Mefentrifluconazole to Fusarium verticillioides

Tong,

Meng,

Zhang

et al. 2024

J. Agric. Food Chem.

View full text Add to dashboard Cite

The occurrence of maize ear rot caused by Fusarium verticillioides (F. verticillioides) poses a threat to the yield and quality of maize. Mefentrifluconazole enantiomers appear to have strong stereoselective activity against F. verticillioides and cause differences in fumonisin production. We evaluated the stereoselective activity of mefentrifluconazole enantiomers by determining inhibition of the strain, hyphae, and conidia. Strain inhibition by R-(−)-mefentrifluconazole was 241 times higher than S-(+)-mefentrifluconazole and 376 times higher in conidia inhibition. For the mechanism of the enantioselective bioactivity, Rmefentrifluconazole had stronger binding to proteins than S-(+)-mefentrifluconazole. Under several concentration conditions, the fumonisin concentration was 1.3−24.9-fold higher in the R-(−)-mefentrifluconazole treatment than in the S-(+)-mefentrifluconazole treatment. The R-enantiomer stimulated fumonisin despite a higher bioactivity. As the incubation time increased, the stimulation of the enantiomers on fumonisin production decreased. R-(−)-Mefentrifluconazole stimulated higher fumonisin production in F. verticillioides at 25 °C compared to 30 °C. This study established a foundation for the development of high-efficiency and low-risk pesticides.

show abstract

“…In recent years, fungicides, such as triazoles, have been commonly used to control FHB by preventing the growth and spread of the Fusarium fungi [ 12 , 13 ]. Metconazole, prothioconazole, and tebuconazole are fungicides used in agriculture to control various fungal diseases, including FHB [ 14 , 15 , 16 ]. Triazole fungicides have been shown to be effective in inhibiting Fusarium species growth both in vitro and in vivo.…”

Section: Introductionmentioning

confidence: 99%

In Vitro Sensitivity Test of Fusarium Species from Weeds and Non-Gramineous Plants to Triazole Fungicides

Matelionienė,

Žvirdauskienė,

Kadžienė

et al. 2024

Pathogens

View full text Add to dashboard Cite

Fusarium species are common plant pathogens that cause serious crop losses worldwide. Fusarium spp. colonize not only the main host plants, crops, but also alternative hosts. The effectiveness of fungicide use in disease management ranges from very successful to possibly promoting the growth of the pathogen. Triazole fungicides are widely used to control these pathogens due to their broad-spectrum activity and systemic nature. This paper reviews the sensitivity of 40 Fusarium strains isolated from weeds, non-gramineous plants, and spring wheat to metconazole, prothioconazole, and tebuconazole. The effect of fungicides was determined by the percentage inhibition of F. graminearum, F. culmorum, F. sporotrichioides, and F. avenaceum fungal mycelial growth. The 50% effective concentration (EC50) values of all isolates on metconazole were lower than 2.9 mg L−1, prothioconazole EC50 ranged from 0.12 to 23.6 mg L−1, and tebuconazole ranged from 0.09 to 15.6 mg L−1. At 0.00025–0.025 mg L−1, the fungicides were ineffective, except for the growth of the F. avenaceum species. It was observed that isolates from weeds were more sensitive to low concentrations of fungicide than isolates from crop plants. In general, information is scarce regarding the comparison of fungicide resistance in Fusarium isolates from weed and crop plants, making this study an additional contribution to the existing knowledge base.

show abstract

Impact of fungicide application to control T-2 and HT-2 toxin contamination and related Fusarium sporotrichioides and F. langsethiae producing species in durum wheat

Cited by 4 publications

References 63 publications

The Effect of Ustilago maydis and Delayed Harvesting on A- and B-Type Trichothecene Concentrations in Maize Grain

The Effect of Ustilago maydis and Delayed Harvesting on A- and B-Type Trichothecene Concentrations in Maize Grain

Mechanism Insights into the Enantioselective Bioactivity and Fumonisin Biosynthesis of Mefentrifluconazole to Fusarium verticillioides

In Vitro Sensitivity Test of Fusarium Species from Weeds and Non-Gramineous Plants to Triazole Fungicides

Contact Info

Product

Resources

About