Disease: Gray mold disease

Fungal Argonaute proteins act in bidirectional cross-kingdom RNA interference during plant infection

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Scientists discovered that fungi and plants exchange genetic instructions called small RNAs to control each other during infection. A fungal pathogen called Botrytis cinerea uses special proteins called Argonautes to deliver these instructions into plant cells, which helps the fungus cause disease. Plants also send back their own genetic instructions to defend themselves. Understanding these molecular communications could lead to new ways to protect crops from fungal diseases.

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Terpinen-4-ol triggers autophagy activation and metacaspase-dependent apoptosis against Botrytis cinerea

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Terpinen-4-ol, a natural compound from tea tree oil, effectively kills gray mold fungus that spoils fruits and vegetables after harvest. The compound works by damaging fungal cell membranes, creating harmful reactive molecules inside fungal cells, and triggering the fungal cells’ self-destruction pathways. When tested on tomatoes and strawberries, terpinen-4-ol successfully reduced mold growth and disease spread, suggesting it could be a safe, eco-friendly alternative to chemical fungicides for protecting fresh produce.

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Green Synthesized Copper-Oxide Nanoparticles Exhibit Antifungal Activity Against Botrytis cinerea, the Causal Agent of the Gray Mold Disease

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Scientists have developed tiny copper particles using environmentally friendly methods with beneficial fungi to fight gray mold, a devastating disease in vineyards and crops. These green-synthesized nanoparticles were more effective at stopping the fungus than commercial fungicides currently in use. The research shows this approach could be a sustainable alternative that reduces harmful chemicals used in agriculture while protecting crops more effectively.

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Heterologous expression of the hypovirus CHV1-EP713 full-length cDNA in Botrytis cinerea: transformation with Agrobacterium tumefaciens and evaluation of changes in the fungal phenotype

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Researchers successfully introduced a virus from chestnut blight fungus into gray mold fungus to reduce its ability to cause disease. The transformed fungus grew slower, produced fewer spores, and caused less damage to plants. This discovery suggests viruses could be used as natural biological control agents to protect crops from fungal diseases.

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Autophagy and the Mitochondrial Lon1 Protease Are Necessary for Botrytis cinerea Heat Adaptation

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Researchers studied how a common plant-damaging fungus called Botrytis cinerea survives high temperatures. They found that two cellular cleanup systems—autophagy (which recycles damaged components) and a mitochondrial protease called Lon1—work together to help the fungus survive heat stress. When either system was disabled, the fungus was much more sensitive to heat and showed increased cell death, suggesting these processes are essential for the fungus’s survival strategy.

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Comparison and Analysis of the Genomes of Three Strains of Botrytis cinerea Isolated from Pomegranate

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Researchers compared three strains of gray mold fungus (Botrytis cinerea) that infect pomegranate fruits from different regions in Mexico. Using DNA sequencing and laboratory tests, they found that the MIC strain from Hidalgo was more aggressive at infecting fruit and breaking down plant tissues than the other two strains from the State of Mexico. These differences appear related to each strain’s genetic makeup and where they originated, which could help farmers develop better strategies to prevent gray mold disease on pomegranates.

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Botrytis cinerea combines four molecular strategies to tolerate membrane-permeating plant compounds and to increase virulence

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Botrytis cinerea is a fungus that causes plant disease by overcoming plant chemical defenses called saponins. Researchers discovered that this fungus uses four different molecular strategies to survive saponin exposure: it breaks down saponins with an enzyme, modifies membrane structures to resist saponin damage, activates proteins that protect the cell membrane, and repairs membrane damage after it occurs. These findings explain how this fungus successfully infects plants protected by saponins and reveal new understanding of how microorganisms resist antimicrobial compounds.

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