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Antibacterial and Antifungal Activity and Acute Toxicity of Crude Extracts From the Wild Edible Mushrooms Cantharellus veraecrucis, Cantharellus violaceovinosus, and Turbinellus floccosus

Summary

Researchers tested extracts from three wild edible mushroom species found in Mexican forests for their ability to fight harmful bacteria and fungi. The extracts showed promise against disease-causing microorganisms, with one species particularly effective against agricultural plant pathogens. While the extracts showed moderate toxicity at high doses, the results suggest these mushrooms could be developed into natural pesticides or medicines.

Background

Multidrug-resistant microorganisms pose a major threat to public health and agriculture. Wild edible macrofungi have shown bioactive properties, high nutritional value, and biodegradability, making them potential sources for developing new antimicrobial agents.

Objective

To determine the antibacterial, antifungal, and acute toxicity activities of crude extracts from fruit bodies of three wild mushroom species: Cantharellus veraecrucis, Cantharellus violaceovinosus, and Turbinellus floccosus.

Results

Turbinellus floccosus showed the most notable antibacterial activity with MIC=1000 μg/mL against Enterococcus faecalis. C. violaceovinosus displayed good bioactivity against Clavibacter michiganensis. T. floccosus inhibited phytopathogenic fungi with PIMG%=62.20 against Acremonium strictum and 58.73% against Colletotrichum asianum. All extracts showed moderate toxicity with LC50 range of 100-500 μg/mL.

Conclusion

The extracts demonstrate promising antibacterial and antifungal properties with moderate toxicity, suggesting potential for pharmaceutical and agricultural applications. The study supports future research on identifying bioactive metabolites and testing extracts in plant models for developing biodegradable pesticides.
  • Published in:International Journal of Food Science,
  • Study Type:In vitro experimental study,
  • Source: PMID: 40264902
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