pathogenicity – Page 4

Genetic and Genomic Analysis Identifies bcltf1 as the Transcription Factor Coding Gene Mutated in Field Isolate Bc116, Deficient in Light Responses, Differentiation and Pathogenicity in Botrytis cinerea

mycolabadmin

Scientists identified the genetic mutation responsible for unusual traits in a fungal strain (Bc116) that causes grape disease. The mutation in the bcltf1 gene prevents the fungus from infecting plants when exposed to light, while making it produce excessive spores and form smaller seed structures. By restoring the normal gene in laboratory experiments, researchers confirmed that this single gene controls multiple important fungal behaviors related to light sensing and disease-causing ability.

Morphological and molecular identification of Schizophyllum commune causing storage bulb rot disease of Lanzhou edible lily in China and its biological characteristics

mycolabadmin

Researchers in China identified Schizophyllum commune as a fungal pathogen causing rot in stored edible lily bulbs, marking the first report of this disease. The fungus was identified using microscopic examination and genetic sequencing, and was shown to cause 100% infection on lily bulbs. The study found that the fungus grows best at 30°C with high humidity and darkness, providing important information for controlling this storage disease that causes significant crop losses.

Morphological, Physiological, Biochemical, and Molecular Characterization of Fungal Species Associated with Papaya Rot in Cameroon

mycolabadmin

Papaya rot is a major problem for farmers in Cameroon, causing significant losses in this important tropical fruit crop. Researchers identified three fungi responsible for this rot: Colletotrichum gloeosporioides, Fusarium equiseti, and Lasiodiplodia theobromae. These fungi produce enzymes that break down papaya tissue and also produce toxins harmful to consumers. Understanding how these fungi grow and what conditions favor their development can help farmers develop better strategies to prevent rot and reduce post-harvest losses.

Tracking of Tobacco Mosaic Virus in Taxonomically Different Plant Fungi

mycolabadmin

Scientists discovered that tobacco mosaic virus can infect and replicate inside some fungal pathogens like Botrytis and Verticillium, which are major crop diseases. Interestingly, when viruses infect these fungi, the fungi activate their own defense mechanisms to fight the virus, yet still maintain their ability to cause disease in plants. This discovery opens new possibilities for using plant viruses as tools to study and potentially control harmful fungal pathogens on crops.

Transcriptomic and metabolomic analyses unravel the different pathogenic mechanisms of Ustilaginoidea virens in indica and japonica rice

mycolabadmin

Rice is vulnerable to a fungal disease called false smut caused by Ustilaginoidea virens. Scientists found that this fungus attacks different rice varieties in different ways. By studying gene expression and chemical changes in infected rice, they discovered that the fungus uses different molecular pathways to infect indica rice versus japonica rice, explaining why these varieties have different levels of resistance to the disease.

Roles of the Sec2p Gene in the Growth and Pathogenicity Regulation of Aspergillus fumigatus

mycolabadmin

Researchers studied a gene called Sec2p in a dangerous fungus that causes serious lung infections in people with weak immune systems. By removing this gene, they found the fungus grew slower, caused less damage, and fewer infected mice died. This discovery suggests that blocking Sec2p could be a new way to treat these fungal infections.

Characterization of Setophoma henanensis sp. Nov., causing root rot on peanut

mycolabadmin

Scientists discovered a new fungus called Setophoma henanensis that causes root rot disease in peanut plants in China. This fungus can also infect corn, wheat, peppers, and onions, making it a concern for farmers. The good news is that existing fungicides used to treat peanut diseases are still effective against this new pathogen.

Sweet Pepper cv. Lai Lai Ripeness Stage Influences Susceptibility to Mycotoxinogenic Alternaria alternata Causing Black Mold

mycolabadmin

This research shows that green and red peppers can both develop black mold caused by a fungus called Alternaria alternata, but at different rates depending on temperature. Red peppers are more susceptible to severe infection at room temperature, while both types are similarly affected during cold storage. Importantly, infected peppers can produce toxins harmful to human health, emphasizing the need for preventing fungal infection in pepper crops before harvest and storage.

Larone’s Medically Important Fungi: A Guide to Identification, 7th Edition

mycolabadmin

This is a practical guidebook for identifying disease-causing fungi in medical laboratories. The 7th edition uses color-coding and organized illustrations to help laboratory technicians and doctors quickly identify fungi from patient samples. It includes information about emerging fungal pathogens and is designed to be used as a quick reference at the laboratory bench rather than a comprehensive textbook.

Flood Inoculation of Fusarium eumartii in Tomato Seedlings: Method for Evaluating the Infectivity of Pathogen Spores

mycolabadmin

This research paper presents a detailed procedure for testing how a fungus called Fusarium eumartii infects young tomato plants. Scientists use a simple flooding method to apply fungal spores to tomato seedlings and then measure how much damage occurs and how much fungus remains in the plant tissue. This standardized method helps researchers evaluate new fungicides and find ways to protect tomato crops from this harmful fungal disease.

Research Keyword: pathogenicity