tissue necrosis – mycolab.ai

CWI-MAPKs Regulate the Formation of Hyphopodia Required for Virulence in Ceratocystis fimbriata

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Black rot disease in sweet potatoes is caused by a fungus that uses specialized infection structures called hyphopodia to penetrate plant cells. This study reveals that a cellular signaling pathway involving specific proteins (MAPKs) controls the formation of these infection structures and regulates how the fungus spreads through plants. Understanding this mechanism could help develop new ways to prevent sweet potato infections.

First Report of Trametes hirsuta, Causal Agent White Rot in Avocado Trees Grown in the State of Michoacán, México

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Researchers discovered that a wood-decay fungus called Trametes hirsuta is causing serious damage to avocado trees in Michoacán, México, the world’s largest avocado-producing region. The fungus infects tree trunks and branches, causing white rot that eventually kills the trees. About 60% of surveyed avocado trees showed signs of infection. Laboratory experiments confirmed that this fungus, previously known only as a decomposer of dead wood, can actively infect and destroy living avocado trees through wounds in the bark.

Invasive fungal otitis media with peripheral facial paralysis

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This case describes a rare fungal ear infection caused by Aspergillus fumigatus that spread to the mastoid bone and caused facial nerve paralysis. The patient had ear drainage and hearing loss for 4 years before diagnosis. Treatment required two surgical procedures to remove infected tissue combined with 6 months of antifungal medication, eventually resulting in healing and recovery of facial nerve function.

Epidemiology, Biotic Interactions and Biological Control of Armillarioids in the Northern Hemisphere

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This paper reviews how armillarioid fungi, particularly Armillaria species, cause root rot disease in forests and orchards across the Northern Hemisphere. These fungi spread through underground root-like structures called rhizomorphs and can kill trees and damage crops over large areas. The authors discuss how to identify these fungi using modern genetic methods and explore environmentally friendly biological control options using beneficial bacteria, fungi, and nematodes as alternatives to chemical treatments.

Toxicity of Volatile Organic Compounds Produced by Pathogens Ewingella americana and Cedecea neteri Associated with Pleurotus pulmonarius

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Researchers discovered that two types of bacteria (Ewingella americana and Cedecea neteri) causing diseases in oyster mushrooms (Pleurotus pulmonarius) produce harmful volatile compounds. These airborne toxins, especially one called 2,4-di-tert-butylphenol, can damage mushroom tissue and stop mushroom growth at very low concentrations. This is the first study showing that these bacterial volatiles are important factors in mushroom disease, which could help farmers develop better ways to detect and prevent these infections.

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

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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.

Presence of white-nose syndrome in bats from Southern Mexico

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Researchers found evidence that white-nose syndrome, a deadly fungal disease affecting bats, has reached southern Mexico. The fungus was detected in bat samples from a cave in Oaxaca, confirming earlier predictions about its spread from North America. The fungus can survive at temperatures ranging from cold to tropical heat, making it a significant threat to bat populations across diverse habitats in Mexico and beyond.

Rhinocerebral Mucormycosis in a Patient With Diabetes: A Rare but Critical Infection in the United Arab Emirates

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A middle-aged man with undiagnosed diabetes developed a serious fungal infection called mucormycosis that affected his sinuses, eyes, and brain. He presented with flu-like symptoms and facial weakness, and blood tests showed dangerously high blood sugar and acid levels (diabetic ketoacidosis). Doctors treated him with multiple rounds of antifungal medications, several surgeries, and innovative injections directly into and around his eyes and spinal cord, resulting in his successful recovery and discharge.

Pomegranate Woody Mycobiota Associated with Wood Decay

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Pomegranate growers in Italy are facing a serious disease called wood decay syndrome that kills young trees. Researchers found that multiple fungi, especially Neofusicoccum parvum and several Diaporthe species, working together cause this disease. Cold winter temperatures appear to weaken the trees, making them vulnerable to these fungal infections. Using both traditional lab methods and modern DNA analysis, scientists identified the fungi and confirmed which ones are most dangerous.

Anti-Therapeutic Action: tissue necrosis