Research Keyword: Alternaria

Characterization and Biological Characteristics of Alternaria, Botryosphaeria, Pestalotiopsis, and Trichothecium Species Associated with Postharvest Loquat Fruit Rot in Yunnan, China

Researchers in China identified four types of fungal pathogens responsible for loquat fruit rot after harvest. These fungi cause different symptoms ranging from ring-shaped spots to soft decay, with infection rates between 4-12%. The study confirmed each pathogen’s ability to cause disease and found that some are more aggressive than others. This research helps growers understand what causes loquat spoilage and suggests that careful handling and cool storage can reduce losses.

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Transformation of Alternaria dauci demonstrates the involvement of two polyketide synthase genes in aldaulactone production and fungal pathogenicity

A fungus that causes leaf spots on carrots produces a toxic chemical that helps it infect plants. Scientists identified two genes responsible for making this toxin and used genetic engineering to create mutant fungi unable to produce it. When these mutant fungi tried to infect carrot plants, they were much less damaging than the normal fungus, proving the toxin is crucial for the fungus to cause disease.

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