ArticleApplied microbiology and biotechnology2022
Transcriptome analysis reveals the underlying mechanism of heptanal against Aspergillus flavus spore germination.
Article in Applied microbiology and biotechnology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed, 20 citations in OpenAlex.
- Protection of postharvest grains from fungal spoilage by biogenic volatiles.Applied microbiology and biotechnology · 2023Review
- Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
Methods of controlling Aspergillus flavus contamination in agro-products have attracted attention because of its impact on global food security. We previously reported that the natural cereal volatile heptanal could effectively inhibit A. flavus growth and showed great potential as a bio-preservative agent. In this study, the minimum inhibitory concentration and minimum fungicide concentration of heptanal could change the surface morphology of A. flavus spores, causing them to wrinkle and collapse. Transcriptomic analysis showed that heptanal treatment significantly changed the expression of several genes involved in cell wall and plasma damage, reactive oxygen species (ROS) accumulation, energy metabolism, AMPK-activated protein kinase, biosynthesis of unsaturated fatty acids, RNA degradation, and DNA replication. Heptanal-induced early apoptosis of A. flavus spores was characterized by decreased mitochondrial membrane potential, increased intracellular ROS production, and DNA fragmentation. This study provides new insight into the inhibitory mechanism of heptanal against A. flavus and points to its potential application as a bio-preservative. KEY POINTS: • Heptanal can effectively inhibit A. flavus growth in cereal grains. • The transcriptional changes in A. flavus spores exposed to heptanal were analyzed. • The antifungal mechanism of heptanal against A. flavus was elucidated.
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