Characterization of Extracellular Secondary Metabolites in Oudemansiella canarii BRM-044600 Displaying Antifungal Activity Against the Phytopathogen Sclerotinia sclerotiorum
- Author: mycolabadmin
- 2021-10-20
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Summary
Researchers discovered that a specific mushroom species (Oudemansiella canarii) can naturally fight off a harmful fungus that damages many important food crops. This finding is significant because it offers a natural alternative to chemical pesticides. Impact on everyday life:
• Could lead to more environmentally friendly crop protection methods
• May help reduce chemical pesticide use in agriculture
• Could result in safer and more sustainable food production
• May help lower crop losses and stabilize food prices
• Demonstrates nature-based solutions for agricultural problems
Background
White mold disease, caused by the phytopathogen Sclerotinia sclerotiorum, causes severe productivity losses in many economically important crops. Biocontrol agents, particularly antagonist filamentous fungi, represent environmentally friendly alternatives to chemical fungicides for white mold management.
Objective
To screen basidiomycete fungi for their ability to inhibit S. sclerotiorum and investigate the bioactive metabolites responsible for antifungal activities.
Results
Two isolates showed inhibitory effects: Oudemansiella canarii BRM-044600 and Laetisaria arvalis ATCC52088. O. canarii BRM-044600 liquid culture filtrate demonstrated the strongest antifungal activity. Analysis revealed six putative strobilurins, including strobilurin A and/or its stereoisomers, and three additional putative strobilurins that likely caused the observed antifungal activity.
Conclusion
This study provides the first demonstration of O. canarii’s potential for white mold biocontrol and strobilurin production, offering a promising environmentally friendly approach to crop protection.
- Published in:World Journal of Microbiology and Biotechnology,
- Study Type:Laboratory Research,
- Source: 10.1007/s11274-021-03172-6