Changes in Peptaibol Production of Trichoderma Species During In Vitro Antagonistic Interactions with Fungal Plant Pathogens
- Author: mycolabadmin
- 2020-05-07
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Summary
This research examined how beneficial fungi called Trichoderma produce natural antimicrobial compounds when they encounter harmful plant pathogens. The study helps us understand how these beneficial fungi protect plants from diseases naturally. Key impacts on everyday life include:
– Development of more effective natural fungicides for crop protection
– Reduced need for synthetic chemical pesticides in agriculture
– Better understanding of sustainable plant disease control methods
– Potential for improved crop yields through biological control
– Advancement of environmentally-friendly farming practices
Background
Trichoderma species are widely used as biofungicides for controlling fungal plant pathogens. While several studies have examined the genes and compounds involved in Trichoderma-plant-pathogen interactions, the exact mechanisms remain unclear. Peptaibols, which are linear antimicrobial peptides secreted mainly by Trichoderma species, appear to play an important role in these beneficial interactions.
Objective
To investigate changes in peptaibol production and profiles during in vitro interactions between Trichoderma species and various fungal plant pathogens, in order to better understand the role of these non-ribosomal antimicrobial peptides in antagonistic interactions.
Results
The results showed increased total peptaibol production during pathogen interactions, along with some changes in peptaibol profiles between confrontational and control tests. The tex1 gene expression was significantly elevated in T. asperellum during interaction with R. solani compared to controls. T. asperellum showed highest biocontrol index values against R. solani and A. solani. The crude peptaibol extracts demonstrated inhibitory effects against both bacterial and fungal test organisms.
Conclusion
The interaction with plant pathogens significantly influenced peptaibol production in the examined Trichoderma strains. The total quantity of detected peptaibol mixtures changed during in vitro confrontations, suggesting that host organisms impact Trichoderma peptaibol metabolism. These findings indicate peptaibol production may play an important role in biological control mechanisms.
- Published in:Biomolecules,
- Study Type:Laboratory Research,
- Source: 10.3390/biom10050730