phylogenetic analysis – Page 29

Interference with sexual mating of Sporisorium scitamineum by verrucarin A isolated from Paramyrothecium sp

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Scientists discovered a fungus from moss that produces a natural compound called verrucarin A, which stops sugarcane smut disease by preventing the sexual mating of its fungal spores. This prevents the disease from developing without harming the sugarcane plants. In greenhouse tests, this natural biocontrol agent reduced disease occurrence by nearly half compared to untreated plants, offering a safe alternative to chemical pesticides for protecting sugarcane crops.

Identification and biological characterization of pathogen causing sooty blotch of Ardisia crispa (Thunb.) A.DC.

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Researchers identified two fungi causing sooty blotch, a serious disease affecting Ardisia crispa, an important Chinese medicinal plant. The disease creates black mold on leaves that reduces the plant’s ability to produce energy through photosynthesis. The study found that extracts from specific medicinal plants can effectively inhibit the growth of these harmful fungi, offering an environmentally friendly alternative to chemical pesticides for protecting these valuable medicinal plants.

Morphological and phylogenetic analyses reveal two new species of Tubeufia (Tubeufiales, Tubeufiaceae) from freshwater habitats in China

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Scientists have discovered two previously unknown fungal species in freshwater streams in Hainan Province, China. These fungi, named Tubeufia yanuodaensis and Tubeufia yinggelingensis, belong to a group called helicosporous hyphomycetes that break down decaying wood in water. The researchers identified these new species by comparing their DNA sequences and physical characteristics with existing known species.

Four new species of Trichoderma (Hypocreaceae, Hypocreales) discovered in the staple food bamboo of pandas

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Scientists discovered four new types of Trichoderma fungi living in bamboo forests where giant pandas eat. These fungi are commonly found in nature and can help plants grow stronger or break down dead plant material. By studying the DNA of these fungi, researchers confirmed they are distinct new species and learned more about the fungal ecosystem that supports giant pandas’ primary food source.

Pathogen identification and biological fungicides screening for Plumbago auriculata blight in China

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Researchers identified a fungal pathogen (Fusarium ipomoeae) causing a serious disease in Plumbago auriculata ornamental plants in China. They tested seven biological fungicides and found that osthole was the most effective at preventing the disease. The study provides gardeners and farmers with an environmentally friendly solution to control this plant disease using a natural compound.

Diversity and pathogenicity of pestalotioid fungi infecting Camellia oleifera in China

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Tea oil plants in China’s Sichuan Province are being infected by three types of fungi that cause serious diseases like leaf spots and blighting. Researchers identified a new fungal species and found that two previously known species can also infect tea oil plants. All three fungi were tested for their ability to cause disease, and they successfully infected tea oil plant leaves under laboratory conditions.

Taxonomic characterization and cytotoxic potential of Vietnamese Ganoderma ellipsoideum against human breast cancer MCF-7 cells

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Scientists discovered a mushroom species called Ganoderma ellipsoideum in Vietnam that shows promise in fighting breast cancer. When tested on cancer cells in the laboratory, extracts from this mushroom killed cancer cells effectively. Computer modeling showed that compounds from this mushroom fit perfectly into and block proteins that help cancer cells grow and spread. This discovery suggests the mushroom could be a natural source for developing new cancer drugs.

Candidemia due to Candida lambica in a neutropenic oncology patient: A rare case report

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A 56-year-old cancer patient developed a serious bloodstream infection caused by a rare yeast called Candida lambica despite taking antifungal medications. Doctors identified the infection using genetic sequencing and found that the organism was sensitive to a different antifungal drug called voriconazole. After switching medications and removing the patient’s central line, the infection cleared up. This case demonstrates the importance of accurately identifying fungal infections and testing which medications work best against them.

Novel secondary metabolite from a new species of Hypoxylon saxatilis sp. nov. for suppressing bacterial wilt in tomato

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Researchers discovered a new fungus species (Hypoxylon saxatilis) living inside medicinal plants that produces a novel compound called tetrahydrofuran. This compound kills the bacterium that causes tomato wilt disease by damaging bacterial cell walls. In greenhouse tests, extract from this fungus reduced wilt disease severity by over 83%, suggesting it could be developed as an eco-friendly alternative to chemical pesticides for protecting tomato crops.

Pseudobaorangia (Boletaceae, Boletales), a new genus for Boletus lakhanpalii

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Scientists have identified and named a new genus of mushroom called Pseudobaorangia for a species previously misclassified as Boletus lakhanpalii. Using DNA analysis of samples found in China’s Baima Snow Mountain, researchers determined this mushroom is closely related to but distinct from the genus Baorangia. This discovery helps clarify the family relationships of boletes, which are a diverse group of mushrooms found around the world.

Research Keyword: phylogenetic analysis