Research Topic: antifungal mechanisms

Biocontrol Potential of Bacillus velezensis RS65 Against Phytophthora infestans: A Sustainable Strategy for Managing Tomato Late Blight

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Researchers tested 30 soil bacteria from tomato roots to find natural disease fighters. They discovered that Bacillus velezensis RS65, a beneficial bacterium, effectively prevents tomato late blight by producing enzymes and toxins that kill the fungal pathogen. In greenhouse tests, plants treated with RS65 had half the disease severity compared to untreated plants, suggesting this bacteria could replace chemical fungicides in sustainable tomato farming.

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Mechanism Analysis of Amphotericin B Controlling Postharvest Gray Mold in Table Grapes

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This research shows that amphotericin B, a natural compound produced by bacteria, can effectively prevent gray mold from spoiling table grapes after harvest. The compound works by damaging the mold’s cell membranes and also activates the grapes’ own defense systems. At a treatment level of 200 mg/L, it completely prevented mold growth on grapes over a three-day storage period, offering a safer, more environmentally friendly alternative to synthetic fungicides.

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Mechanism Analysis of Amphotericin B Controlling Postharvest Gray Mold in Table Grapes

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Researchers discovered that amphotericin B, a natural compound produced by soil bacteria, effectively prevents gray mold disease on table grapes. The compound works by directly damaging the fungus’s cell membranes and also boosts the grape’s own defense mechanisms. This natural solution could replace harmful synthetic fungicides while extending the shelf life of grapes during storage and transport.

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Application and Mechanism of Action of Carvacrol Against Aspergillus niger Causing Postharvest Rot of Garlic Scapes (Allium sativum L.)

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Garlic scapes, the tender flower stalks of garlic plants, often rot during storage due to fungal infections. Researchers discovered that carvacrol, a natural compound found in herbs like thyme and oregano, effectively kills the fungi responsible for this spoilage. By damaging the fungal cell walls, carvacrol can help preserve fresh garlic scapes longer without synthetic chemicals, making it a promising natural food preservative for grocery stores and consumers.

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The antifungal mechanism of EntV-derived peptides is associated with a reduction in extracellular vesicle release

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Researchers discovered that a small peptide derived from a bacterium called EntV can fight Candida fungal infections by targeting specialized vesicles (tiny sacs) that fungi use to spread infections. Unlike traditional antifungal drugs that kill fungi, EntV works by blocking the release of these vesicles, reducing the fungus’s ability to infect and form protective biofilms. This new approach could lead to treatments that work against drug-resistant fungi without the toxicity issues of current antifungals.

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