Microbial-mediated induced resistance: interactive effects for improving crop health

Area of Science:

• Agricultural Science
• Plant Pathology
• Microbiology

Background:

• Microbial-mediated induced resistance (MMIR) is a promising sustainable agriculture strategy.
• Its application is limited by context dependency under field conditions.
• Beneficial microbes like Trichoderma, AMFs, Bacillus, and Pseudomonas induce plant resistance.

Purpose of the Study:

• To explore the mechanisms and challenges of microbial-mediated induced resistance (MMIR).
• To identify factors influencing MMIR effectiveness in agricultural settings.
• To propose strategies for overcoming context dependency for field application.

Main Methods:

• Review of existing literature on microbial-mediated induced resistance (MMIR).
• Analysis of molecular events involved in plant defense activation by microbes.
• Identification of biotic, abiotic, and agricultural factors affecting MMIR.

Main Results:

• MMIR involves priming, oxidative burst, defense gene activation, and signaling pathways (JA/ET).
• Specific microbial species (e.g., Trichoderma, Bacillus, Pseudomonas) are identified as inducers.
• MMIR effectiveness is significantly influenced by environmental and agricultural contexts.

Conclusions:

• Context dependency is a major hurdle for field application of MMIR.
• Simulating field conditions in experiments or developing stable commercial formulations are potential solutions.
• Further interdisciplinary research and industry partnerships are needed for practical MMIR implementation.