Research Keyword: quantitative resistance

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

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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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Controlled inoculation provides insight into western redcedar resistance to multiple root- and butt-rot pathogens

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Scientists tested western redcedar trees with eight different wood-decaying fungi to understand which ones cause disease and how resistant the trees are. They used two methods to infect young trees in a greenhouse and tracked disease development over 18 months. They discovered that while some fungi caused visible damage, others caused hidden infections that still harmed tree growth even without obvious symptoms. These findings can help tree breeders develop redcedar varieties that better resist these diseases.

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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

Rice plants are affected by a fungal disease called sheath blight caused by a fungus named Rhizoctonia solani. This study found that different strains of this fungus vary in how aggressive they are, with some being much more damaging than others. By testing various rice varieties, researchers identified which ones naturally resist this disease better, and these resistant varieties could be used to breed new rice crops that are less affected by the disease.

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Controlled inoculation provides insight into western redcedar resistance to multiple root- and butt-rot pathogens

mycolabadmin

Western redcedar is an economically important tree species suffering from fungal diseases that cause wood decay and significant financial losses. Researchers developed controlled methods to test how resistant young redcedar trees are to eight different decay fungi, finding that some fungi are much more damaging than others. Importantly, they discovered that some infections remain hidden without visible symptoms but still harm tree growth, and these hidden infections can be detected using advanced DNA-based methods. This research will help forest managers and breeders develop redcedar varieties with better disease resistance.

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