Tripartite Interactions in Biocontrol: Insights for Developing Yeast-Based Strategies

Area of Science:

• Agricultural Science
• Microbiology
• Plant Pathology

Background:

• Conventional plant disease management relies heavily on chemical pesticides, raising health and environmental concerns.
• Biocontrol agents (BCAs), particularly yeasts, are emerging as sustainable alternatives due to their safety and diverse antagonistic mechanisms.
• Current research often overlooks the complex interactions within agroecosystems, focusing on simple pairwise interactions.

Purpose of the Study:

• To emphasize the importance of understanding tripartite interactions among plants, pathogens, and yeasts.
• To explore the potential of yeasts in modulating plant immunity and pathogen behavior.
• To highlight the need for integrated omics approaches to unravel yeast-based biocontrol mechanisms.

Main Methods:

• Review of existing literature on yeast biocontrol agents and their interactions.
• Analysis of tripartite interaction models, including plant-pathogen-yeast systems.
• Integration of transcriptomic, comparative genomic, proteomic, and metabolomic approaches.

Main Results:

• Yeasts exhibit diverse mechanisms for biocontrol, including competition, enzyme secretion, and immunity induction.
• Complex molecular crosstalk between plants, pathogens, and yeasts influences plant immunity and pathogen behavior.
• Well-studied models demonstrate the potential of specific yeast-pathogen-plant interactions.

Conclusions:

• A deeper understanding of tripartite interactions is crucial for optimizing yeast-based biocontrol strategies.
• Integrated omics analyses are essential for uncovering strain-specific defense mechanisms and modes of action.
• Harnessing yeast potential requires moving beyond simple interactions to address complex agroecosystem dynamics for sustainable agriculture.