Disease: rice sheath blight

Mycoviruses: Antagonistic Potential, Fungal Pathogenesis, and Their Interaction with Rhizoctonia solani

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This comprehensive review explores how viruses that infect fungi, called mycoviruses, could help farmers control rice diseases. Rice sheath blight caused by the fungus Rhizoctonia solani causes significant crop losses worldwide. Scientists have discovered that certain mycoviruses can weaken this pathogenic fungus, making them promising biological alternatives to chemical fungicides that can harm the environment and encourage disease resistance.

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Revisiting the emerging pathosystem of rice sheath blight: deciphering the Rhizoctonia solani virulence, host range, and rice genotype-based resistance

mycolabadmin

Researchers studied a fungus that causes rice leaf disease in Egypt by isolating and testing different strains to understand why some were more damaging than others. They found the most aggressive strain produced more enzymes that break down plant cell walls, making it more harmful. The team also tested which rice varieties were naturally resistant to the disease and identified specific genes that could help breeders develop disease-resistant rice varieties without needing fungicide chemicals.

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