Transcriptomics and metabolomic profiling identify molecular mechanism for <i>Aspergillus flavus</i> infection in grain
نویسندگان
چکیده
Abstract Aspergillus flavus is a ubiquitous saprophyte and opportunistic fungal pathogen with worldwide distribution, which causes diseases commonly in agricultural commodities seriously threatens food security human health. In this study, we try to reveal the mechanisms of A. infection grain from perspective apparent changes physicochemical properties, microscopic structure, ultrastructural at transcriptome–metabolomics levels. The results showed that included preinfection (1–3 days) postinfection period (4–7 days). downregulated expression creA promoted cellulase initiated infection. metabolite oleic acid as nutrient carbon source energy source. Then entry acetate units into aflatoxin synthesis pathway was inhibited, whereas aflH , hypD hypB were significantly upregulated ( p < .05) stimulate complete on surface. During period, upregulation aflS other toxin‐producing regulatory genes accelerated completed internal At same time, vitamin B 6 allysine involved amino metabolism, galactose 1‐phosphate metabolism ensured production acetyl‐CoA supply for research findings highlight underlying levels, important developing effective strategies prevent postharvest contamination.
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ژورنال
عنوان ژورنال: Food frontiers
سال: 2023
ISSN: ['2643-8429']
DOI: https://doi.org/10.1002/fft2.303