phylogenetic analysis – Page 15

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

mycolabadmin

Researchers in China identified a fungal disease affecting Plumbago auriculata (cape leadwort), a popular ornamental plant. The disease was caused by Fusarium ipomoeae, a fungus that causes yellowing and death of plant tissue. Scientists tested seven biological pesticides and found that osthole, a natural compound, was most effective at controlling the fungus and preventing disease.

Cloning and Expression Analysis of Phenylalanine Ammonia-Lyase Gene in the Mycelium and Fruit Body of the Edible Mushroom Flammulina velutipes

mycolabadmin

Scientists cloned and studied a gene called PAL in the winter mushroom (Flammulina velutipes), which produces trans-cinnamic acid from phenylalanine. They found that this gene is activated differently depending on the nutrient environment and mushroom developmental stage. The gene is particularly active in the mushroom’s stem during growth, suggesting it helps produce beneficial compounds during mushroom development.

Disseminated Lichtheimia ramosa infection in a Japanese Black calf

mycolabadmin

A young cow developed a severe fungal infection caused by Lichtheimia ramosa, a rare type of mold. The infection spread throughout the cow’s body, affecting the liver and digestive system. The cow had an underdeveloped immune system (thymus hypoplasia) and was given multiple antibiotics for weeks, which actually made the fungal infection worse by killing normal protective bacteria. Despite various treatments, the cow’s condition worsened and it had to be euthanized.

New Species of Ascomycetes from Two Hypersaline Endorheic Lagoon Complexes in Zaragoza Province (Aragon Community, Spain)

mycolabadmin

Scientists discovered three new types of fungi living in extremely salty lagoons in Spain. These fungi can survive in harsh conditions that kill most organisms. The researchers identified these new species by studying their shape and DNA, and also reorganized how some existing fungi are classified based on genetic relationships. This discovery helps us understand how life adapts to extreme environments.

Feline Cryptococcosis due to Cryptococcus gattii VGII (Recently Renamed as C. deuterogattii) in an FIV-Positive Cat With Demodicosis From Manaus, Central Amazon, Brazil

mycolabadmin

A 20-month-old cat from Brazil’s Amazon region presented with nasal discharge, skin lesions, and a neck mass and was diagnosed with cryptococcosis caused by a dangerous fungus called C. deuterogattii. The cat was also infected with feline immunodeficiency virus (FIV), which weakened its immune system and made it vulnerable to the fungal infection. Treatment with the antifungal medication fluconazole successfully cured the infection within 8 weeks, and the cat made a full recovery.

Detection of Pestalotiopsis abbreviata sp. nov., the Causal Agent of Pestalotiopsis Leaf Blight on Camellia japonica Based on Metagenomic Analysis

mycolabadmin

Researchers discovered a new fungal species called Pestalotiopsis abbreviata that causes leaf disease on Camellia japonica, an ornamental tree popular in Korea. Instead of using traditional time-consuming laboratory methods, they used advanced genetic sequencing (metagenomic analysis) to quickly identify the fungus among hundreds of other microbes living on the tree leaves. This new approach is faster and more accurate than old methods, making it easier to monitor and manage plant diseases in the future.

Morpho-phylogenetic evidence reveals novel hyphomycetous fungi on medicinal plants in Southwestern China

mycolabadmin

Researchers in China discovered 12 new species of fungi living on medicinal plants, along with several previously unreported fungal occurrences. These fungi were identified using both microscopic examination and DNA analysis. Some of these fungi can produce harmful toxins, while others produce beneficial compounds that affect medicinal plant quality. This research helps us better understand the invisible fungal world living on the plants we use for medicine.

Two new Periconia species (Pleosporales, Ascomycota) in China

mycolabadmin

Scientists discovered two new fungal species belonging to the genus Periconia in China. These fungi were collected from freshwater streams and corn plants in Guangxi and Yunnan provinces. Using genetic analysis and microscopy, researchers confirmed these as previously unknown species and named them Periconia guangxiense and Periconia xishuangbannaensis. This discovery adds to our understanding of fungal diversity in China and shows that many fungal species remain yet to be discovered.

Exo-metabolome profiling of soybean endophytes: a road map of antagonism against Fusarium oxysporum

mycolabadmin

Scientists discovered that certain beneficial bacteria living inside soybean roots can protect the plant from a harmful fungus that causes root rot and reduces crop yield. By analyzing the chemical compounds these bacteria produce, researchers identified specific antifungal substances that kill or inhibit the pathogenic fungus. These findings suggest that instead of using harmful chemical fungicides, farmers could use these beneficial bacteria as a natural, environmentally-friendly way to protect soybean crops and improve agricultural sustainability.

Targeted long-read sequencing analysis and antifungal susceptibility profiles of Sporothrix schenckii isolates from Thailand

mycolabadmin

Researchers in Thailand studied a fungal infection called sporotrichosis by using advanced DNA sequencing technology to identify the exact species and understand how different strains are related to each other. They found that while current treatment options work, some strains are becoming resistant to the main drug used (itraconazole). The study shows that a newer, faster DNA sequencing method can be just as reliable as traditional methods for identifying these dangerous fungi and tracking how they spread between cats and humans.

Research Keyword: phylogenetic analysis