pathogenicity – Page 5

The Transcription Factor SsSR Mediates Ergosterol Biosynthesis and Virulence in Sclerotinia sclerotiorum

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Scientists discovered that a specific protein called SsSR acts as a master switch controlling how dangerous a fungus called Sclerotinia sclerotiorum becomes when attacking plants. Unlike other protein switches that make the fungus grow faster, this one specifically controls the fungus’s ability to cause infection by managing the production of ergosterol, a critical component of the fungus’s cell membranes. This discovery could lead to new ways to protect crops like oilseed rape from this devastating disease.

A Novel Subspecies of Didymella acutilobae Causing Leaf Spot in East Asian Hogweed

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Researchers identified a new fungal disease affecting East Asian hogweed, an edible herb used in traditional medicine. The disease, called leaf spot, was caused by a previously unknown subspecies of fungus named Didymella acutilobae subsp. heraclei. Using genetic analysis and laboratory testing, scientists confirmed this fungus is responsible for infecting hogweed plants in Korean fields. Understanding this pathogen is important for protecting this valuable medicinal plant.

Identification and virulence factors prediction of Didymella segeticola causing leaf spot disease in Asarum heterotropoides in China

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This research identifies a fungal disease causing serious damage to Chinese wild ginger crops in northeastern China. Scientists found that the fungus Didymella segeticola causes leaf spot disease and identified 87 proteins that help the fungus harm the plants. The study provides important information for developing strategies to prevent this disease and protect this valuable medicinal herb crop.

The Kelch Repeat Protein VdKeR1 Is Essential for Development, Ergosterol Metabolism, and Virulence in Verticillium dahliae

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Verticillium dahliae is a serious fungal disease that kills many important crops like cotton and tomato by clogging their water-conducting vessels. Scientists discovered a protein called VdKeR1 that helps this fungus grow and cause disease by controlling how it makes ergosterol, a crucial component of fungal cell membranes. When researchers removed this protein, the fungus grew poorly, couldn’t form survival structures, and was much less dangerous to plants.

Biological and Genomic Insights into Fusarium acuminatum Causing Needle Blight in Pinus tabuliformis

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Researchers identified a fungus called Fusarium acuminatum as the cause of needle blight disease affecting Chinese pine trees in northern China. They studied how this fungus grows and sequenced its entire genome to understand how it damages the trees. The findings help explain the disease and provide tools to develop better ways to protect and treat infected pine trees.

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

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Scientists discovered that a particular gray mold fungus collected from vineyards loses its ability to cause disease when exposed to light. They found this is due to a mutation in a single gene called bcltf1, which acts as a light-sensing control switch. When they restored this gene, the fungus regained its disease-causing ability. This discovery helps explain how fungal pathogens sense light and use it to decide when and how to infect plants.

Trachemys scripta Eggs as Part of a Potential In Vivo Model for Studying Sea Turtle Egg Fusariosis

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Sea turtles around the world face a serious threat from a fungal disease called fusariosis that destroys their eggs before they hatch. Scientists wanted to study how this fungus causes disease, but working with endangered sea turtles in tropical regions is difficult and heavily regulated. They discovered they could use eggs from red-eared slider turtles, an invasive species, as a substitute model to understand how the fungus infects eggs. The research showed that the fungus is highly virulent and modifies the acidity of egg surfaces to help it grow, providing valuable insights that could help protect endangered sea turtles.

Whole-genome sequencing of Fusarium oxysporum K326-S isolated from tobacco

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Scientists have sequenced the complete genetic blueprint of a fungus that causes root rot in tobacco plants. This fungus, Fusarium oxysporum K326-S, damages tobacco crops by causing roots to brown and wilt. The detailed genome map they created contains over 17,000 genes and will help farmers and researchers develop better strategies to prevent and control this destructive disease in the future.

Research Keyword: pathogenicity