next-generation sequencing

The Gut Mycobiome for Precision Medicine

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This comprehensive review explores how fungi in our gut play important roles in our health and disease. While fungi make up only a tiny fraction of our gut microbiota, they have outsized effects on conditions like diabetes, inflammatory bowel disease, and even certain cancers. The review discusses how scientists study these fungi and how understanding individual fungal profiles could lead to personalized medical treatments tailored to each person’s unique microbial makeup.

Diversity of Sordariales Fungi: Identification of Seven New Species of Naviculisporaceae Through Morphological Analyses and Genome Sequencing

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Scientists discovered seven new species of fungi in the Naviculisporaceae family by combining DNA sequencing with traditional microscopic examination. They collected samples from soil and animal dung around the world and sequenced the genomes of 25 fungal strains. By comparing genetic information and growing the fungi in laboratory conditions to observe their reproductive structures, they could definitively identify which fungi were new species. This research greatly expands our understanding of fungal diversity.

Differential composition of the pulmonary microbiome in HIV-positive versus HIV-negative patients with Pneumocystis jirovecii

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This study compared lung infections in HIV-positive and HIV-negative patients who both had Pneumocystis jirovecii. Researchers found that HIV-positive patients had more diverse microorganisms in their lungs, particularly viruses, yet generally did better. HIV-negative patients had fewer types of microorganisms but worse outcomes. The findings suggest that the way a person’s immune system is weakened matters more than just having many germs present.

Mycoviruses: Antagonistic Potential, Fungal Pathogenesis, and Their Interaction with Rhizoctonia solani

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This comprehensive review explores how viruses that infect fungi, called mycoviruses, could help farmers control rice diseases. Rice sheath blight caused by the fungus Rhizoctonia solani causes significant crop losses worldwide. Scientists have discovered that certain mycoviruses can weaken this pathogenic fungus, making them promising biological alternatives to chemical fungicides that can harm the environment and encourage disease resistance.

Primary cutaneous mixed infection with Cryptococcus uniguttulatus and Mycobacterium tuberculosis

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A 43-year-old man had persistent facial skin lesions for seven years that initially appeared to be fungal infection caused by Cryptococcus uniguttulatus. Standard antifungal treatments failed to completely cure the condition. Advanced genetic testing revealed the lesions were actually caused by two simultaneous infections: the fungus and tuberculosis bacteria. Once both infections were properly identified and treated with appropriate medications, the skin lesions finally healed.

Genetic sequencing of the airborne fungal spectrum and air quality at a public hospital in Mexico City

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Researchers tested the air inside and outside a Mexico City hospital to identify harmful fungi that could make patients sick. Using two different sampling methods, they found 27 different fungal species, including dangerous ones like Aspergillus fumigatus that cause serious infections especially in people with weakened immune systems. The study shows that hospitals need better air monitoring systems to protect vulnerable patients from these airborne infections.

Draft genome sequence of three Glaciozyma watsonii strains isolated from near the Syowa station area, East Antarctica

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Scientists have sequenced the genetic code of three strains of a special cold-loving yeast called Glaciozyma watsonii found in East Antarctica. This yeast can grow in extremely cold conditions, even at temperatures below freezing, which is remarkable. Understanding its genome may help scientists develop new medicines and discover enzymes that work in cold conditions.

The first described case of Fomitiporella micropora infection in humans: A heart transplant recipient diagnosed by fungal PCR

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A heart transplant patient developed a slow-growing lump on his shin that turned out to be caused by a rare fungus never before seen in humans. Doctors removed the lump surgically and used advanced genetic testing to identify the unusual fungus as Fomitiporella micropora. The patient received antifungal medication and the wound healed completely, highlighting how modern genetic tests can identify rare infections that traditional methods might miss.

Investigating fungal diversity through metabarcoding for environmental samples: assessment of ITS1 and ITS2 Illumina sequencing using multiple defined mock communities with different classification methods and reference databases

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Scientists developed a comprehensive method for identifying different fungi in environmental samples using DNA sequencing technology called metabarcoding. They tested 37 mixtures of known fungi species to compare different approaches, including which DNA markers to use, which reference databases to search, and which computer analysis methods to apply. The study found that the choice of method significantly affects results, with some approaches better at genus-level identification and others at species identification, helping researchers select the best approach for their specific needs.

Whole-genome sequencing of global forest pathogen Diplodia sapinea causing pine shoot blight

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Scientists have sequenced the complete genome of Diplodia sapinea, a fungus that causes serious disease in pine trees worldwide. This fungus normally lives harmlessly inside healthy pine trees but becomes dangerous during stressful conditions like droughts or storms. The new genome information will help scientists understand how this pathogen works and develop better ways to prevent and control the disease in forests.

Research Keyword: next-generation sequencing