Phenylalanine Treatment for Plant Pathogen Control
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Solution Overview
Problem
Current methods for controlling pathogenic infections in plants are inadequate, particularly in reducing pesticide residues and effectively managing arthropod and bacterial infections, which can lead to significant crop losses and quality issues in fruits and vegetables.
Innovation Solution
A method involving the use of phenylalanine at concentrations between 0.5 to 30 mM, applied through various forms such as dips, sprays, or seed coatings, to control arthropod and bacterial infections in plants, including those caused by Pseudomonas and Tuta absoluta, by contacting the plant at different stages and locations, potentially combined with other agricultural agents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional pesticides are used to control pathogenic infections, then disease control effectiveness is improved, but pesticide residues increase and safety decreases
Solution Approach 1:
The patent changes the chemical nature of the treatment from synthetic pesticides to amino acid-based compounds (phenylalanine, tyrosine, tryptophan) and their derivatives. This parameter change maintains disease control effectiveness while eliminating harmful pesticide residues, directly resolving the contradiction between effectiveness and safety
Solution Approach 2:
The patent employs biodegradable amino acid compounds that break down naturally in the environment, replacing persistent synthetic pesticides. These short-living organic compounds provide effective disease control during the treatment period but decompose completely afterward, leaving no harmful residues
2Reliability
If resistant cultivars are used to control plant diseases, then long-term disease resistance is improved, but the potential for serious crop disease epidemics persists
Solution Approach 1:
The patent applies amino acid treatments as preventive measures before disease outbreaks occur. By priming the plant defense systems with phenylalanine and related compounds beforehand, the plants are better prepared to resist pathogen attacks, reducing the likelihood of serious epidemics while maintaining long-term resistance
3Object-affected harmful factors
If chemical-free methods are used to protect plants, then safety is improved, but disease control effectiveness decreases
Solution Approach 1:
The patent uses amino acids (phenylalanine, tyrosine, tryptophan) as intermediary substances that bridge the gap between chemical-free approaches and effective disease control. These natural compounds act as mediators by stimulating plant defense mechanisms and directly inhibiting pathogens, achieving both safety and effectiveness
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method effectively reduces the severity and spread of bacterial speck, Tuta absoluta damage, and spider mite infestations, providing a safer and more efficient alternative to traditional pesticides by inhibiting pathogen activity and reducing disease progression in plants.
Implementation Method 1
a method of controlling a pathogenic infection in a plant... wherein the pathogenic infection is an arthropod infection, a bacterium infection, or both
Implementation Method 2
Plants use a wide range of defense mechanisms to avoid infection by pathogens and attack by parasites. These include local induced defense response, formation of local lesions with increased production of reactive oxygen species (ROS), formation of antimicrobial phenolic compounds
Data Source
Figure 1A~1C
Figure 2A~2D
Figure 2E~4
AI summary
Provided composition and methods for controlling, treating or preventing a pathogenic infection in a plant with a phenylalanine solution. The plant may be at a post-harvest and/or at a pre-harvest stage.