phylogenetic analysis – Page 32

Diversity and Distribution of Colletotrichum Species Causing Anthracnose in China

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Researchers identified 16 different species of Colletotrichum fungi causing anthracnose (a leaf and branch disease) in plants across five Chinese provinces. They discovered four previously unknown species and clarified the classification of several known species using DNA analysis. The study found that different regions had different predominant fungal species, with walnut being particularly susceptible to specific Colletotrichum species. These findings help understand and manage anthracnose diseases in economically important plants in China.

Triangularia manubriata sp. Nov.: A Novel Fungal Species Belonging to the Family Podosporaceae Isolated from Soil in Korea

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Scientists in Korea discovered and identified a new fungal species living in soil, which they named Triangularia manubriata. This fungus belongs to a family of soil-dwelling fungi that help break down organic matter and are important for soil health. The researchers used a combination of physical observations and genetic analysis to confirm it was a previously unknown species, marking the first time this fungal genus has been identified in Korea.

Simplicillium sinense sp. nov., a novel potential pathogen of tinea faciei

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Researchers identified a new fungal species called Simplicillium sinense that caused a facial skin infection (tinea faciei) in a 46-year-old man with diabetes. The fungus was resistant to most common antifungal medications but responded well to terbinafine treatment. This is the first reported case of a Simplicillium infection causing facial ringworm, expanding our understanding of rare fungal pathogens.

Discovery of a New Starship Transposon Driving the Horizontal Transfer of the ToxA Virulence Gene in Alternaria ventricosa

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Scientists discovered that a disease-causing gene called ToxA, previously found only in three wheat-infecting fungi, is also present in a fourth fungal species called Alternaria ventricosa. This gene travels between fungal species through special jumping DNA elements called Starships. The study reveals how fungi share dangerous genes through a process called horizontal gene transfer, which helps them become better at attacking crops. Understanding this process could help farmers and scientists develop better ways to prevent fungal diseases.

Five new species of Inosperma from China: Morphological characteristics, phylogenetic analyses, and toxin detection

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Researchers in China identified five new species of poisonous mushrooms called Inosperma and tested them for dangerous toxins. They used advanced laboratory methods to detect four types of neurotoxins that can cause serious health problems when people eat these mushrooms. Each species contained different combinations of toxins, with some containing none and others containing one or more toxic compounds that affect the nervous system.

Didymellaceae species associated with tea plant (Camellia sinensis) in China

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Researchers identified 25 different fungal species from the Didymellaceae family affecting tea plants across China, including 6 previously unknown species. These fungi cause leaf blight disease that damages tea crops. Tests showed that some species are more harmful than others, with Epicoccum anhuiense being the most damaging and Epicoccum puerense the least damaging to tea leaves.

Catalogue of fungi in China 1. New taxa of plant-inhabiting fungi

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Scientists in China have discovered 33 new types of fungi, including 2 entirely new genera and 18 previously unknown species. These fungi were found growing on dead wood, leaves, and plant materials across different regions of China. By combining detailed microscopic observations with DNA analysis, researchers confirmed these are genuinely new species distinct from known types. This work is part of an ongoing effort to catalog and document all the diverse fungi living in China’s varied landscapes.

The first report of rhinosinusitis by Rhizopus delemar in a patient with severe COVID-19 in Iran: a case report

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A 63-year-old man hospitalized with COVID-19 developed a serious fungal sinus infection caused by a rare mold called Rhizopus delemar. Despite surgery to remove infected tissue and treatment with antifungal medication amphotericin B, the infection spread and the patient died after five weeks. This was the first documented case of this particular mold causing sinus infection in a COVID-19 patient in Iran, highlighting how severe fungal infections can occur as dangerous complications of COVID-19.

Genetic Clarification of Auricularia heimuer Strains Bred and Cultivated in Korea Using the ITS and IGS1 rDNA Region Sequences

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Researchers in Korea discovered that Auricularia mushrooms grown there are actually a different species than previously thought. By analyzing the genetic code of different mushroom strains, scientists confirmed they are all the species A. heimuer rather than A. auricula-judae. They also found that using specific genetic markers (IGS1 sequences) could tell apart different mushroom varieties and identify which strains were produced through breeding.

Sclerotinia rot of Zephyranthes candida caused by Sclerotinia sclerotiorum and Sclerotinia minor

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Researchers discovered that Zephyranthes candida, a popular ornamental plant, can be infected by two types of fungi: Sclerotinia sclerotiorum and Sclerotinia minor, causing a serious white mold disease. The study identified these pathogens and determined that they grow best in cool, acidic conditions with specific nutrients. This information will help gardeners and farmers develop better strategies to prevent and manage this disease on their plants.

Research Keyword: phylogenetic analysis