fungal pathogenicity – Page 4

Global Analysis of microRNA-like RNAs Reveals Differential Regulation of Pathogenicity and Development in Fusarium oxysporum HS2 Causing Apple Replant Disease

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Apple replant disease is caused by a fungus that damages apple tree roots and reduces fruit production. Researchers discovered that this fungus uses special regulatory molecules called microRNA-like RNAs to control its growth and disease-causing abilities, especially during the spore stage. These findings could help scientists develop new ways to control the disease using RNA-based treatments.

Argonaute1-Dependent LtmilR2 Negatively Regulated Infection of Lasiodiplodia theobromae by Targeting a Guanine Nucleotide Exchange Factor in RAS Signalling

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Scientists discovered a small RNA molecule called LtmilR2 in a fungus that causes grape canker disease. This molecule naturally suppresses the fungus’s ability to infect grapes. By delivering this molecule or similar RNA duplexes to the fungus, researchers were able to inhibit its growth and infection, suggesting a new type of biological fungicide that could protect vineyards without chemical pesticides.

The small GTPases FoRab5, FoRab7, and FoRab8 regulate vesicle transport to modulate vegetative development and pathogenicity in Fusarium oxysporum f. sp. conglutinans

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Scientists studied three proteins (Rab GTPases) in a fungal pathogen that causes cabbage wilt disease. These proteins act like traffic controllers, directing materials within fungal cells to support growth and disease spread. By removing these genes one at a time, researchers found that all three proteins are essential for the fungus to infect plants, produce spores, and survive stress conditions. This research could eventually help develop new ways to control this destructive crop disease.

A Case of Allergic Bronchopulmonary Mycosis Caused by Cordyceps farinosa, a Species of Caterpillar Fungi

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A woman developed a serious respiratory condition called allergic bronchopulmonary mycosis caused by Cordyceps farinosa, a fungus that normally infects insect larvae. She worked in a laboratory breeding mice in a mountainous area and developed persistent cough and congestion. Doctors identified the fungus using DNA testing and treated her by removing the fungal material from her airways and removing her from the workplace, which led to complete recovery.

Functions of the Three Common Fungal Extracellular Membrane (CFEM) Domain-Containing Genes of Arthrobotrys flagrans in the Process of Nematode Trapping

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Arthrobotrys flagrans is a fungus that acts as a natural pest controller by trapping and killing parasitic nematodes that damage crops and livestock. Scientists studied three key genes in this fungus that contain CFEM protein domains and found they are critical for forming sticky traps and controlling how deadly the fungus is to nematodes. The research shows that when certain CFEM genes are removed, the fungus produces stickier traps and kills more nematodes, while removing other CFEM genes has the opposite effect, providing insights for developing better biocontrol products.

MoMad2 With a Conserved Function in the Spindle Assembly Checkpoint Is Required for Maintaining Appressorial Turgor Pressure and Pathogenicity of Rice Blast Fungus

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Rice blast fungus causes significant crop damage worldwide. This research reveals that a protein called MoMad2 helps the fungus control its cell division timing and maintains pressure in specialized infection structures called appressoria, which are needed to penetrate rice leaves. When scientists removed the MoMad2 gene, the fungus became less effective at infecting rice plants, suggesting this protein could be a target for developing new disease control strategies.

Impact of Oxalic Acid Consumption and pH on the In Vitro Biological Control of Oxalogenic Phytopathogen Sclerotinia sclerotiorum

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Scientists studied how bacteria that eat oxalic acid can control a destructive plant fungus called Sclerotinia sclerotiorum. The fungus produces oxalic acid to damage crops, but when special bacteria consume this acid, they change the soil pH to become more alkaline, which the fungus cannot tolerate. This research shows that pH changes are just as important as removing the acid itself for controlling this pathogenic fungus in agriculture.

The role of Npt1 in regulating antifungal protein activity in filamentous fungi

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Researchers discovered how antifungal proteins work against a dangerous fungus (Aspergillus flavus) that damages crops and produces toxins. They found that these proteins break down the fungal cell wall and then interact with an internal fungal protein called Ntp1. By understanding exactly which part of Ntp1 the antifungal proteins bind to, scientists can now develop better treatments to protect food crops from fungal diseases.

Research Topic: fungal pathogenicity