fungal pathogenicity – Page 4

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.

Identification and Pathogenicity of Fusarium Fungi Associated with Dry Rot of Potato Tubers

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Researchers identified different Fusarium fungi causing potato dry rot in Russia and tested how they grow at various temperatures and how aggressively they damage potatoes. They found that F. sambucinum is the most dangerous because it can grow and cause rot even during cold storage, unlike other species. This research helps farmers understand which pathogens threaten their crops and how storage conditions affect disease development.

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.

The Last of Them: Entomopathogenic Effect of Akanthomyces muscarius on the Scale Insect Pest Toumeyella parvicornis Under Laboratory Conditions, a Potential Biological Control Candidate

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Scientists tested a fungus called Akanthomyces muscarius as a natural way to control an invasive pest called the tortoise scale insect that damages stone pine trees in Europe. In laboratory experiments, the fungus effectively infected and killed these insects, showing much better results than commercial fungal products. This research suggests the fungus could be used as an environmentally-friendly alternative to chemical pesticides for protecting pine trees in urban areas.

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.

mSphere of Influence: Population-level thinking to unravel microbial pathogenicity

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This article discusses how scientists have traditionally divided fungi into clear categories of disease-causing pathogens versus harmless non-pathogens, often based on studying just one strain. Recent research shows that non-pathogenic fungi can actually have many disease-causing traits similar to pathogenic species, suggesting the boundary between dangerous and safe fungi is not as clear-cut as previously thought. By studying many different strains across species, researchers can better understand how fungal diseases develop and potentially evolve.

Isolation, Identification, Biological Characterization, and Pathogenicity of Entomopathogenic Fungus from the Larvae of the Evergestis extimalis (Scopoli) (Lepidoptera: Pyralidae)

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Researchers discovered a naturally occurring fungus called Mucor hiemalis that can kill Evergestis extimalis, a pest that damages rapeseed crops. They identified optimal growing conditions for this fungus and tested its effectiveness against different life stages of the pest. The fungus proved highly effective, especially against younger larvae, offering a promising natural alternative to chemical pesticides for crop protection.

Enzymatic, cellular breakdown and lysis in treatment of Beauveria brongniartii on Spodoptera litura (Fabricius, 1775)

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Scientists tested a natural fungus called Beauveria brongniartii as a pest control solution for tobacco cutworms (Spodoptera litura), which damage crops. The fungus was highly effective at killing the pest at all life stages, with 98% success against eggs and 96% against larvae. Importantly, the fungus was safe for earthworms and other non-target organisms, making it an environmentally friendly alternative to chemical pesticides that harm beneficial species and the soil.

Research Keyword: fungal pathogenicity