Glutamicibacter Strain Degrades Bifenthrin Residues

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Solution Overview

Problem

The long-term use of chemical pesticides like bifenthrin in tea tree cultivation leads to environmental pollution and resistance in Ectropis grisescens, with no effective microbial solutions for degrading bifenthrin residues.

Innovation Solution

A novel strain of Glutamicibacter, designated as Eg-H, is isolated from the gut of E. grisescens larvae, demonstrating high-efficiency bifenthrin degradation capabilities, characterized through molecular biology, physiological, and biochemical analysis, and formulated into microbial agents or fertilizers for environmental application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chemical pesticides like bifenthrin are used to control E. grisescens, then pest control effectiveness is improved, but environmental pollution and pesticide resistance increase

Engineering Contradiction:

Improvepest control effectivenessVSAvoidenvironmental pollution and pesticide resistance

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent utilizes the insect gut microbiota that naturally coexist with E. grisescens and converts them into beneficial agents for pesticide degradation. The symbiotic bacteria, which normally aid the insect's metabolism, are harnessed to degrade bifenthrin residues, transforming a potential source of resistance into a solution for environmental remediation

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent introduces insect gut microbiota as an intermediary between the pesticide and the environment. These microorganisms act as mediators that break down bifenthrin into less harmful substances, preventing direct contamination of the environment while maintaining pest control effectiveness

Inventive Principle:

Principle #24Intermediary (Mediator)

2Duration of action of stationary object

If long-term chemical pesticide usage is continued, then pest control is maintained, but agricultural residues and resistance development increase

Engineering Contradiction:

Improvepest control durationVSAvoidagricultural residues

Core Design Contradiction:

Duration of action of stationary objectVSLoss of substance

Solution Approach 1:

The patent employs insect gut microbiota that continuously degrade bifenthrin residues over time. These microorganisms provide ongoing degradation activity, ensuring that pesticide residues are progressively broken down without interrupting the pest control program, thereby reducing agricultural residues while maintaining control duration

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The patent leverages the self-service capability of insect gut microbiota to degrade pesticides. The microorganisms naturally present in the insect gut perform the degradation function without requiring external intervention, converting the insect's own microbiome into a self-sustaining remediation system

Inventive Principle:

Principle #25Self-service

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 Glutamicibacter strain effectively degrades bifenthrin, reducing environmental toxicity and enhancing resistance in E. grisescens, providing a biological control method and addressing pesticide-related issues.

Implementation Method 1

The Glutamicibacter strain effectively degrades bifenthrin, reducing environmental toxicity

Methodology Applied

Scientific EffectMicrobial degradation: Decomposition (biological)

Data Source

PatentUS12091653B2Strain of <i>Glutamicibacter</i>, originating from insects, capable of efficiently degrading bifenthrin

Publication Date: 2024.09.17 ANHUI AGRICULTURAL UNIVERSITY

AI summary

The present disclosure discloses a novel strain of Glutamicibacter, derived from insects, which efficiently degrades bifenthrin, belonging to the field of microbial strains. The Glutamicibacter CCTCC NO: M20221445 of the present disclosure was isolated from the intestinal tract of bifenthrin-resistant Ectropis grisescens Warren larvae. It exhibits unique genomic characteristics, growth and phenotypic traits, physiological and biochemical characteristics, as well as the ability to utilize and degrade bifenthrin efficiently. Specifically, it can effectively degrade bifenthrin. Based on phenotypic features, physiological and biochemical characteristics, chemical composition, and molecular biology-based polyphasic classification, Glutamicibacter CCTCC NO: M20221445 is identified as a new species. This bacterium possesses the capability to efficiently degrade bifenthrin, laying the foundation for biological control of E. grisescens and offering new microbial resources to address pesticide residue problems.