Mycology – Page 14

New epidemiological routes of Coccidioidomycosis in Mexico – the extension of this pathogen to new areas

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Coccidioidomycosis, a fungal lung disease traditionally found in desert regions of Mexico and the southwestern United States, is spreading to new areas where it was never seen before. Researchers tracked 122 cases between 1991 and 2023 and found that nearly half of the patients had no history of travel to known high-risk areas, suggesting the disease is becoming established in new locations. Climate change and drought conditions are likely helping the fungus expand its range, making it important for doctors everywhere to consider this disease when diagnosing respiratory infections.

First Report of Colletotrichum kahawae Causing Anthracnose on Buckwheat (Fagopyrum tataricum) in China and Biological Characterization of the Pathogen

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Researchers in China discovered that a fungus called Colletotrichum kahawae is causing a serious disease called anthracnose on buckwheat crops in Yunnan Province. This is the first time this particular fungus has been identified on buckwheat in China. Scientists studied how the fungus grows and found it prefers temperatures around 25°C and neutral pH levels. The fungus can also infect other important crops like wheat, corn, potatoes, and oats, which could pose a significant threat to agriculture in the region.

Coexistence of Malassezia Species and Microsporum canis in the Lesions of Adult with Tinea Capitis

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A 60-year-old woman developed unusual hair loss and rash on her scalp that looked like dandruff. Tests revealed three types of fungi, including Microsporum canis (usually found in animals) and two types of Malassezia yeast. Treatment with antifungal medications for three months cleared the infection. Laboratory experiments showed that the yeast species may actually help the fungus grow better, which could explain why adults sometimes get scalp fungal infections differently than children.

Molecular characterization of four novel mycoviruses in entomopathogenic and nematophagous fungi

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Scientists discovered four new types of viruses that infect specific fungi used for pest control. These fungi naturally kill insects and parasitic worms, making them valuable alternatives to chemical pesticides. Understanding the viruses in these beneficial fungi could help improve their effectiveness as biological control agents and reveal new ecological relationships.

The addition of six novel species and a new record of Amphisphaeria from northern Thailand

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Scientists discovered six new species of fungi belonging to the genus Amphisphaeria in northern Thailand. These fungi were found growing on dead tree twigs from various plant species. The researchers used both microscopic examination and genetic analysis to identify and describe these new species, expanding our knowledge of fungal diversity in tropical regions.

Orthrus: a Pumilio-family gene involved in fruiting body and dark stipe development in Coprinopsis cinerea

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Scientists studied a gene called ort2 in mushrooms that controls how fruiting bodies develop, especially the long structures called dark stipes that form in darkness. They found that when this gene is active, mushrooms make more of these elongated forms, while disabling it prevents dark stipe formation. This discovery could help improve mushroom cultivation for species where these elongated forms are commercially valuable.

Structural and functional characterisation and regulatory mechanisms of SWI/SNF and RSC chromatin remodelling complexes in fungi

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This review examines two important protein complexes in fungal cells that help control which genes are turned on and off. These complexes, called SWI/SNF and RSC, use energy from ATP to move and adjust nucleosomes—the structures that package DNA. The researchers analyzed these complexes across different fungal species and found that while they share similar core components, fungi have evolved unique variations that allow them to survive and cause infections in different ways. Understanding how these complexes work could help scientists develop new antifungal drugs.

Anisotropic Growth of Filamentous Fungi in Wood Hydrogel Composites Increases Mechanical Properties

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Researchers developed new composite materials by growing fungi on specially treated wood. The fungi naturally grow along the wood’s fiber direction, creating stronger, more organized structures than they would in regular gelatin. By adjusting the wood type and nutrient levels, scientists could precisely control the mechanical strength of these eco-friendly materials, which could eventually be used in building products and packaging.

Nomenclatural review of names published in the fungal genus Dermoloma (Basidiomycota, Agaricales, Tricholomataceae) based on morphological analyses of type specimens

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This study examines nine type specimens of mushrooms in the genus Dermoloma, which are small fungi found in grasslands and forests. Researchers used microscopic analysis to describe detailed features of these specimens and determine which ones truly belong to the Dermoloma genus. The study found that three species previously classified as Dermoloma actually belong to different genera, while clarifying the identity of other species that had not been formally recorded in recent years.

Morphological and multi-gene phylogenetic analyses reveal Nigrellomyces gen. nov. and one new species in Pleurotheciaceae from China

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Scientists discovered a new type of fungus in freshwater streams in China called Nigrellomyces aquaticus. This fungus helps break down dead wood in water and is unique compared to other similar fungi because of its distinctive spore structure. The researchers used DNA analysis and detailed observations to confirm this is a completely new genus and species of fungus, adding to our knowledge of freshwater fungal diversity in Southwest China.

Research Topic: Mycology