Mycology – Page 15

Exploring fungal pathogens to control the plant invasive Rubus niveus on Galapagos Island San Cristobal

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Scientists in the Galapagos Islands are working to control an invasive raspberry plant that is damaging the unique ecosystem. They identified five types of fungi that naturally attack this invasive plant and could potentially be used as a biological control method. These fungi were isolated from diseased raspberry plants and tested in the laboratory, showing promise as a sustainable alternative to expensive manual removal and chemical herbicides.

Selection of reliable reference genes in Colletotrichum scovillei during different growth stages, host interactions, and plant extract treatment for qRT-PCR

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This research identifies the best internal control genes to use when measuring gene activity in a fungus that causes pepper disease. Scientists tested eight different reference genes under various conditions like fungal growth and pepper infection, plus when treating the fungus with plant extracts. Different genes worked best for different situations: one gene was best during fungal growth, another during infection, and a third when treated with plant extracts. These findings will help future studies better understand how this disease-causing fungus works and develop better control methods.

Clinical Significance and Therapeutic Challenges of Scedosporium spp. and Lomentospora prolificans Isolates in a Single-Center Cohort of Lung Transplant Recipients

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This study examined dangerous fungal infections caused by Scedosporium and Lomentospora species in lung transplant patients at a Spanish hospital. Researchers found these infections were uncommon but very serious, with high death rates especially from the Lomentospora type. Current antifungal drugs often don’t work well against these fungi, highlighting the need for better treatment options.

Dermatophytosis in a Chilean fox: first case of Nannizzia gypsea in Lycalopex griseus and the need for a one health approach

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Researchers reported the first case of a fungal skin infection caused by Nannizzia gypsea in a wild South American grey fox found near Santiago, Chile. The fox developed crusted and scaly lesions on its tail, which were successfully treated with topical antifungal cream. This discovery highlights how increasing contact between domestic pets, wild animals, and humans due to urbanization can spread fungal infections, emphasizing the need for integrated health approaches that consider human, animal, and environmental health together.

Erythema Nodosum Associated with Kerion: A Case Series and Narrative Review of the Literature

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This paper describes a rare condition where patients develop painful red bumps on the shins (erythema nodosum) as a reaction to a severe scalp fungal infection (kerion) caused by Trichophyton mentagrophytes. The authors reviewed 23 similar cases and found that this reaction usually happens during antifungal treatment and resolves within about a week. Treatment with antifungal medications like griseofulvin, sometimes combined with anti-inflammatory steroids, is effective, though scarring of the scalp may remain.

Emergence of resistant dermatophytosis caused by Trichophyton indotineae: First case series in Thailand

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Researchers in Thailand have identified the first cases of a new resistant fungal skin infection caused by Trichophyton indotineae. This fungus is resistant to a commonly used antifungal drug called terbinafine and causes persistent skin rashes on various body parts. The study describes five patients whose infections were finally identified through genetic testing and who responded well to alternative antifungal treatment with itraconazole. This discovery suggests the fungus is now spreading in Thailand and doctors should watch for it.

Urosepsis From Nephrolithiasis Caused by Candida glabrata: A Rare Etiology of Urinary Sepsis in an Immunocompetent Patient

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A 41-year-old man with kidney stones developed a serious bloodstream infection caused by Candida glabrata, a type of yeast fungus that rarely infects healthy people. Although he initially received antibiotics, his condition worsened until doctors identified the fungal infection through blood tests. After placing a drainage tube in his kidney and treating him with an antifungal medication called micafungin, he recovered well. This case highlights the importance of considering fungal infections when standard antibiotics fail to treat kidney stone-related infections.

A case of flexor tenosynovitis caused by Cyberlindnera rhodanensis – First reported human infection

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A patient developed a fungal wrist infection caused by a yeast never before seen in humans, called Cyberlindnera rhodanensis. The infection required six surgeries and five months of antifungal medications to treat. This case shows that new fungal pathogens can cause serious infections even in healthy people, and highlights the importance of proper identification of organisms in medical cultures.

Survey of clinical microbiology and infectious disease testing capabilities among institutions in Africa

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This study surveyed laboratory facilities across Africa to understand what infectious disease tests are available. Researchers found that basic tests like bacterial identification are common, but advanced tests for viruses (other than HIV) and fungi are less available. The study highlights the need for investment in laboratory infrastructure to improve disease diagnosis and help countries respond to health emergencies.

Fungal-derived ZnO nanoparticles functionalized with riboflavin and UDP-GlcNAc exhibit potent nematicidal activity against M. incognita

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Scientists used a nematode-trapping fungus to create tiny zinc oxide particles that are highly toxic to root-knot nematodes, which damage crops worldwide. These nanoparticles are naturally coated with beneficial fungal compounds like riboflavin that enhance their pest-killing ability. The particles killed over 94% of nematodes in laboratory tests, offering a greener alternative to harsh chemical pesticides currently used in farming.

Research Topic: Mycology