Research Topic: Thermal dimorphism

The dimorphic fungus Talaromyces marneffei: An opportunistic killer in Southeast Asia

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Talaromyces marneffei is a dangerous fungus found in Southeast Asian soils that causes serious lung infections when people breathe in its spores. The fungus has a clever trick: it transforms into different forms depending on temperature and hides inside immune cells by tricking them. People with weak immune systems, particularly those with advanced HIV/AIDS or certain genetic conditions, are most vulnerable to severe disease.

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The dimorphic fungus Talaromyces marneffei: An opportunistic killer in Southeast Asia

mycolabadmin

Talaromyces marneffei is a dangerous fungus found in Southeast Asian soil that people inhale, causing a serious disease called talaromycosis. The fungus is particularly deadly for people with weakened immune systems like those with advanced HIV. The fungus has evolved clever tricks to hide from and manipulate the body’s immune system, allowing it to multiply inside immune cells called macrophages.

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Select and Resequence Methods Enable a Genome-Wide Association Study of the Dimorphic Human Fungal Pathogen Coccidioides posadasii

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Scientists developed a new method to understand how different strains of the fungus Coccidioides posadasii, which causes Valley Fever, respond to temperature changes. By mixing multiple fungal strains together and sequencing their DNA after growing them at different temperatures, they identified a gene that helps determine whether the fungus grows better in hot (body temperature) or cool (environmental) conditions. This discovery could help explain how this dangerous fungus adapts to human infection and may lead to better treatments for Valley Fever.

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