Certain filamentous fungi produce mycotoxins that contaminate food. Mycotoxin contamination of crops is highly influenced by environmental conditions and is already affected by global warming, where there is a succession of mycotoxigenic fungi towards those that have higher optimal growth temperatures. Aflatoxigenic fungi are at the highest limit of temperature although predicted increases in t...

BACKGROUND Aflatoxin B1 (AFB1), produced by Aspergillus flavus, is one of the most life threatening food contaminants causing significant economic losses worldwide. Biological AFB1 degradation by microorganisms, or preferably microbial enzymes, is considered as one of the most promising approaches. OBJECTIVES The current work aimed to study the AFB1-degrading metabolites, produced by Phoma gl...

The potential of line-scan Raman hyperspectral imaging system equipped with a 785 nm line laser was examined for discrimination uninfected control, AF36-inoculated and AF13-inoculated corn kernels in this study. AF13 AF36 strains were used as representatives the aflatoxigenic non-aflatoxigenic A. flavus fungi. A total 300 3 treatments, namely, 100 inoculated fungus, sterile distilled water cont...

Aspergillus flavus is one of the most important producers of carcinogenic aflatoxins in crops, and the effect of water activity (a(w)) on growth and aflatoxin production of A. flavus has been previously studied. Here we found the strains under 0.93 a(w) exhibited decreased conidiation and aflatoxin biosynthesis compared to that under 0.99 a(w). When RNA-Seq was used to delineate gene expression...

Of 120 isolates of the Aspergillus flavus group from pecans used in bakery products, 85 were shown to produce aflatoxin on yeast extract sucrose medium. Extracts from moldy sections of raw pecans obtained commercially at the retail level showed aflatoxin-like spots on thin-layer chromatography. Cooked (autoclaved) pecans inoculated with toxigenic isolates of A. flavus were also good substrates ...

Aflatoxins (AFs) are fungal secondary metabolites frequently detected in soil that exhibit vitro toxicity to certain microorganisms. However, microbial responses at different levels and complex systems such as the environment have not been systematically studied. Therefore, we investigated multiple two soils (sandy loam clay) aflatoxin B1 (AFB1) environmentally relevant concentrations (0.5–500 ...