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Soil Allies: Exploring the Combined Potential of Folsomia candida and Trichoderma spp. Against Fusarium oxysporum

Summary

This study explores how springtails and beneficial fungi called Trichoderma can work together to fight a harmful soil fungus that damages cape gooseberry crops. The springtails preferentially eat the pathogenic fungus while avoiding the beneficial Trichoderma, allowing it to persist and do its job. Both organisms independently reduce the harmful fungus, suggesting they could be used together as an eco-friendly alternative to chemical fungicides.

Background

Fusarium oxysporum is a widespread soil-borne phytopathogenic fungus affecting various crops worldwide, particularly cape gooseberry in Colombia. Springtails and Trichoderma species have been identified as potential biocontrol agents in soil ecosystems. This study investigates their independent and combined potential against this pathogen.

Objective

To evaluate the independent effects of three Trichoderma species and the springtail Folsomia candida on suppression of F. oxysporum, and to assess their potential synergistic interactions for biocontrol applications.

Results

All three Trichoderma species significantly inhibited F. oxysporum growth (35-40% reduction), while F. candida showed marked preference for consuming F. oxysporum mycelium over Trichoderma species. Microscopy and molecular analysis confirmed selective ingestion of F. oxysporum and avoidance of Trichoderma spp.

Conclusion

Both organisms independently suppress F. oxysporum through different mechanisms, suggesting potential complementary or synergistic effects in biocontrol applications. The selective feeding behavior and lack of antagonism between F. candida and Trichoderma spp. indicate ecological compatibility for integrated pest management strategies.
  • Published in:Environmental Microbiology Reports,
  • Study Type:In Vitro Experimental Study,
  • Source: PMID: 41024491, DOI: 10.1111/1758-2229.70202
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