Research Topic: cell wall biology

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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Researchers studied three genes (CFEM1-3) in a fungus called Arthrobotrys flagrans that traps and kills parasitic worms. By deleting or increasing these genes, scientists found they control how the fungus makes sticky trap networks and how thick the trap walls are. This knowledge could help develop natural pest control products to protect plants and animals from harmful parasitic nematodes.

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Acidic pH Modulates Cell Wall and Melanization in Paracoccidioides brasiliensis, Affecting Macrophage Interaction

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A dangerous fungal infection called paracoccidioidomycosis affects people in Latin America. Researchers found that when this fungus encounters acidic conditions similar to those inside immune cells in the body, it protects itself by producing a dark pigment called melanin and changing its cell surface. These changes help the fungus hide from the immune system and reduce the ability of immune cells called macrophages to attack and destroy it.

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Protein kinase A signaling regulates immune evasion by shaving and concealing fungal β-1,3-glucan

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Candida albicans is a fungus that causes infections in humans. The fungus has developed a clever way to hide from our immune system by covering up a molecule on its surface called β-1,3-glucan that normally triggers immune responses. This study shows that the fungus masks this molecule through a combination of growing and dividing to create new surfaces, and then using enzymes to trim away exposed molecules. The research reveals that a specific cell signaling pathway controlled by lactate (a chemical found in our bodies) activates this masking behavior, helping the fungus evade immune recognition.

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Pathogenic mucorales: Deciphering their cell wall polysaccharidome and immunostimulatory potential

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Mucormycosis is a serious fungal infection that primarily affects people with weak immune systems and carries high mortality rates. Researchers studied three common mucormycosis-causing fungi to understand how their outer cell layers interact with the human immune system. They found that all three fungi trigger strong inflammatory responses, which may explain why the disease is so damaging. This research helps us better understand how these infections work and could lead to improved treatments or vaccines.

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The Gcn5 lysine acetyltransferase mediates cell wall remodeling, antifungal drug resistance, and virulence of Candida auris

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Candida auris is a dangerous fungal infection that resists many standard antifungal drugs. Researchers discovered that a protein called Gcn5 helps this fungus survive both drugs and the body’s immune system. By targeting Gcn5 with a new compound called CPTH2, scientists showed they could make the fungus more vulnerable to standard treatments like caspofungin, suggesting a promising new approach to fighting these infections.

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Characterization of Endoglucanase (GH9) Gene Family in Tomato and Its Expression in Response to Rhizophagus irregularis and Sclerotinia sclerotiorum

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This study examined how tomato plants regulate genes that break down and remodel cellulose in cell walls during interactions with beneficial fungi and harmful pathogens. Beneficial mycorrhizal fungi boost the expression of these genes, leading to larger leaves and better plant growth. When pathogens attack, these genes are turned down to strengthen the cell wall defense. This demonstrates how plants balance growth and defense depending on their microbial environment.

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