Azelaic Acid Plant Pathogen Resistance Priming
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Solution Overview
Problem
Current methods fail to effectively prime plants to resist pathogen attacks without substantial induction of defense genes, and the mechanisms behind systemic acquired resistance are not fully understood, particularly regarding unidentified signal molecules.
Innovation Solution
Azelaic acid and its derivatives are used to prime plants by contacting plant components with effective concentrations, inducing a defense response before pathogen attack, which includes using suitable concentrations of azelaic acid, derivatives, or analogs, and potentially combining with other defense-inducing components like salicylic acid or jasmonic acid, to enhance resistance against various pathogens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional defense-inducing methods are used to activate plant resistance responses, then pathogen resistance is improved, but substantial metabolic burden is imposed on plants through extensive induction of defense genes
Solution Approach 1:
Azelaic acid is applied to plants before pathogen infection to prime the defense system. This preliminary treatment activates signaling pathways and prepares defense mechanisms in advance, so that when pathogens attack, the plant can respond more effectively without needing to substantially induce defense genes at the time of infection, thereby reducing metabolic burden while maintaining resistance
Solution Approach 2:
The invention changes the temporal parameter of defense gene induction by using azelaic acid treatment. Instead of inducing defense genes continuously or at the moment of pathogen attack, the treatment creates a primed state where defense genes can be rapidly induced only when needed, optimizing the balance between resistance and metabolic cost
2Reliability
If plants activate comprehensive defense responses against pathogens, then resistance to pathogen infection is improved, but the complexity of plant defense signaling pathways increases
Solution Approach 1:
Azelaic acid acts as an intermediary molecule that simplifies the activation of complex defense signaling pathways. Rather than requiring simultaneous activation of multiple defense genes and pathways, azelaic acid serves as a signaling molecule that triggers a coordinated defense response through established pathways like salicylic acid signaling, thereby maintaining effective resistance while reducing the apparent complexity of activation
Data Source
AI summary
Azelaic acid or its derivatives or analogs induce a robust and a speedier defense response against pathogens in plants. Azelaic acid treatment alone does not induce many of the known defense-related genes but activates a plant's defense signaling upon pathogen exposure.