Research Topic: dimorphic fungi

Aspartyl protease MfSAP2 is a key virulence factor in mycelial form of skin fungi Malassezia furfur

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Malassezia furfur is a common skin fungus that can change from round yeast cells to thread-like filaments. When it becomes thread-like, it produces a special enzyme called MfSAP2 that damages the proteins holding together the dead skin cells that form our skin’s protective barrier. This damage may be responsible for the patches and discoloration seen in pityriasis versicolor, a common skin condition.

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Current taxonomic status of the cultivable and uncultivable Paracoccidioides species

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Paracoccidioides are fungi that cause serious infections in humans and dolphins. Scientists have recently reorganized and renamed these fungi into five different species—three that can be grown in labs and two that cannot. Some previously named species turned out to be invalid due to naming rule violations. This article explains the correct names and classifications that doctors and researchers should use.

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Targeted long-read sequencing analysis and antifungal susceptibility profiles of Sporothrix schenckii isolates from Thailand

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Researchers in Thailand studied a fungal infection called sporotrichosis caused by Sporothrix schenckii, which infects both cats and humans. Using advanced DNA sequencing technology from Oxford Nanopore, they identified and classified 26 fungal samples and tested how well common antifungal medications worked against them. They found that calmodulin gene sequencing was better than the standard ITS test for identifying the fungus species, and that about one-third of the samples showed reduced sensitivity to the main treatment drug, itraconazole.

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Sporothrix davidellisii: A new pathogenic species belonging to the Sporothrix pallida complex

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Scientists have identified a new fungal species called Sporothrix davidellisii that causes an infection in cats. This fungus was found in an infected cat in Australia and is related to other fungi that cause sporotrichosis, a skin disease in humans and animals. The discovery shows that cats can help scientists identify new fungal pathogens in their environments, making them important sentinels for tracking emerging diseases.

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Mucor germinans, a novel dimorphic species resembling Paracoccidioides in a clinical sample: questions on ecological strategy

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Researchers identified a new fungal species called Mucor germinans from a patient with Burkitt lymphoma that can switch between filamentous and yeast-like forms. This is unusual because Mucor species are typically identified by their thread-like filaments, not budding yeast cells. The yeast form appeared at body temperature and resembled a different fungus called Paracoccidioides, potentially causing misdiagnosis. The discovery emphasizes the importance of recognizing that some Mucor infections may present with yeast-like cells and highlights the need for rapid, accurate identification to guide appropriate antifungal treatment.

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Current taxonomic status of the cultivable and uncultivable Paracoccidioides species

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Researchers have clarified the scientific names and classification of five species of fungus that cause disease in humans and dolphins. Some previously proposed species names were found to be invalid because they didn’t follow proper naming rules. The paper recommends that scientists use updated disease names like paracoccidiodomycosis instead of the older term lobomycosis to maintain consistency in medical terminology.

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