Stink Bug Pheromone Enzyme Expression in Plants for Pest Control

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Solution Overview

Problem

Current methods for controlling brown marmorated and harlequin stink bug populations in agriculture, such as biological and chemical control, lack effective alternatives, particularly in reducing crop damage from these invasive pests.

Innovation Solution

Engineering polynucleotides and vector systems that encode cytochrome P450 enzymes and isomerases to produce stink bug pheromones, which can be expressed in plant cells or plants to attract and manage these pests.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chemical control methods are used to manage stink bug populations, then pest control effectiveness is improved, but environmental harm and resistance development worsen

Engineering Contradiction:

Improvepest control effectivenessVSAvoidenvironmental harm

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention changes the chemical parameters of pest control by using pheromone compounds (specific stereochemical configurations of sesquiterpene alcohols and epoxides) instead of broad-spectrum pesticides. This targeted chemical approach maintains control effectiveness while reducing environmental harm through species-specific action

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses pheromone intermediates and synthetic compounds as mediators to attract and trap stink bugs. These intermediary substances facilitate pest control by exploiting the insects' natural communication pathways without requiring direct toxic intervention

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If biological control methods are used to manage stink bug populations, then environmental safety is improved, but control effectiveness and reliability worsen

Engineering Contradiction:

Improveenvironmental safetyVSAvoidcontrol effectiveness

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The invention introduces synthetic pheromone intermediates as a bridging mechanism between biological safety and control effectiveness. These mediator compounds attract stink bugs reliably without harming non-target organisms, combining the safety of biological methods with the effectiveness of targeted control

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent modifies the biological control approach by changing the chemical parameters to include specific pheromone compounds with defined stereochemistry. This enhances the reliability and predictability of control while maintaining environmental safety through species-specific attraction

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If traditional trap crops are used to manage stink bugs, then pest attraction is improved, but reliability and effectiveness worsen due to behavioral and environmental challenges

Engineering Contradiction:

Improvepest attractionVSAvoidcontrol effectiveness

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The invention changes the parameters of trap crop effectiveness by using synthetic pheromone compounds with specific chemical structures and stereochemical configurations. This ensures reliable attraction regardless of environmental conditions or insect behavioral variations that limit traditional trap crops

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates synthetic copies of natural stink bug pheromones, reproducing the exact chemical signals that attract these insects. This copied chemical communication system provides consistent and reliable attraction without depending on the variable performance of plant-based trap crops

Inventive Principle:

Principle #26Copying

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 engineered systems effectively produce stink bug pheromones, attracting and managing these pests, providing an alternative to chemical control and reducing crop damage.

Implementation Method 1

Engineered polynucleotides and vector systems that express terpene pheromone synthesis enzymes from brown marmorated and harlequin stink bugs, enabling the production of specific pheromones and pheromone intermediates in plants

Methodology Applied

Scientific EffectEnzyme catalysis: Enzyme

Data Source

PatentUS12618081B2Brown marmorated and harlequin stink bug pheromone enzyme synthesis and uses thereof

Publication Date: 2026.05.05 VIRGINIA TECH INTELLECTUAL PROPERTIES INC

AI summary

Described herein are engineered polynucleotides and vectors capable of encoding one or more engineered harlequin and/or brown marmorated stink bug pheromone synthesis enzymes. Also described herein are engineered harlequin and/or brown marmorated stink bug pheromone synthesis enzymes. Also described herein are methods of making modified plants capable of expressing one or more harlequin and/or brown marmorated stink bug pheromone synthesis enzymes.