Instituto de investigación en micología y micotoxicología (IMICO, CONICET-UNRC). Rio Cuarto, Ruta 36 Km 601, 5800 Río Cuarto, Córdoba, Argentina.
Published: October 2021
AI Article Synopsis
Article Abstract
Fumonisin occurrence was reported in wheat grains and F. proliferatum has been suggested to be the main contributor to its presence in wheat. Thus, a survey was performed in order to study the impact of four commercial fungicides used in Argentina for controlling Fusarium head blight disease (epoxiconazole+metconazole, tebuconazole, pyraclostrobin+epoxiconazole, and prothioconazole) on growth and fumonisin production of two F. proliferatum strains in relation to water activity (a; 0.99, 0.97, 0.95) and temperature (15°C and 25°C). Most fungicides reduced growth rates when compared to the control (reduction increased as fungicide concentration increased), and reduced fumonisin production when they were used at high doses; however, most fungicides enhanced fumonisin production at sublethal doses, with the exception of prothioconazole. Thus, fungicides used for FHB management could enhance fumonisin production by F. proliferatum strains present in wheat grains.
produces the mycotoxin fumonisin B (FB), which disrupts sphingolipid biosynthesis by inhibiting ceramide synthase and affects the health of plants, animals, and humans. The means by which protects itself from its own mycotoxin are not completely understood. Some fumonisin () cluster genes do not contribute to the biosynthesis of the compound, but their function has remained enigmatic.
Wheat is a most important food crop worldwide. Wheat is reported to be susceptible to a variety of fungi, which could induce huge economic losses and the contamination of potential mycotoxins could bring serious toxic effects. In this work, UV-C irradiation treatment on Fusarium infected wheat seeds during germination was investigated.
Maize is a worldwide crop yet can be associated with mycotoxigenic fungi, much investigated in humid tropical and cooler, wet temperate regions. However, in hot, arid/semi-arid regions data on their occurrence are poor. In this paper, we focused on interactions between maize and Fusarium fungal species in Tunisia, which has a Mediterranean climate, with hot, dry summers and milder, damper winters.
Apples and apple-derived products can be contaminated with patulin and, to a lesser extent, aflatoxin B1 and fumonisins. Fruits were collected from Golden Delicious and Imperatore trees in three orchards in Veneto, Northern Italy, and analysed for the presence of fungi and mycotoxins. Sampling and analyses were also carried out from storage bins to final puree tanks along the apple-puree production chain.
The infant flours produced in Burkina Faso are essentially a mixture of cereals and legumes. These raw materials are frequently contaminated with mycotoxins which pose a huge food safety and public health threat. The objective of this study was to determine mycotoxin levels in raw materials and infant flours in Ouagadougou and to investigate the impact of decontamination on the raw materials used in infant flour production.
