Identification of a pathogen causing fruiting body rot of Sanghuangporus vaninii
- Author: mycolabadmin
- 9/4/2023
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Summary
Sanghuang, a valuable medicinal mushroom grown in China, was suffering from a disease that damaged fruiting bodies and reduced production. Researchers identified the cause as a green mold fungus called Trichoderma virens. The fungus grows best at 25°C and strongly inhibits the mushroom’s growth. Understanding this pathogen is the first step toward developing better ways to prevent the disease and protect this important medicinal crop.
Background
Sanghuangporus vaninii is an increasingly cultivated medicinal macrofungus in China with significant economic value. During cultivation, fruiting bodies became susceptible to pathogenic fungal contamination resulting in substantial economic losses to the industry.
Objective
To identify and characterize the pathogen causing fruiting body rot disease in S. vaninii cultivation. To verify pathogenicity and assess temperature stability and inhibitory effects of the identified pathogen.
Results
The pathogen was identified as Trichoderma virens through morphological and molecular analysis. T. virens showed optimal growth at 25°C and demonstrated an inhibition rate of 79.01±2.79% on S. vaninii mycelium at this temperature. The pathogen produced abundant green spores at the intersection zone during co-culture with S. vaninii.
Conclusion
T. virens is confirmed as the causal agent of fruiting body rot disease in S. vaninii, representing the first report of this pathogen on this medicinal fungus. Safe and effective control methods are needed to manage Trichoderma disease in commercial S. vaninii cultivation.
- Published in:PeerJ,
- Study Type:Experimental Study,
- Source: 10.7717/peerj.15983