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Related Experiment Video

Updated: Nov 10, 2025

Testing the Role of Multicopy Plasmids in the Evolution of Antibiotic Resistance

Testing the Role of Multicopy Plasmids in the Evolution of Antibiotic Resistance

Published on: May 2, 2018

Bacterial evolution on demand.

Pål J Johnsen¹, João A Gama¹, Klaus Harms¹

¹Department of Pharmacy, Faculty of Health Sciences, The Arctic University of Norway, Tromsø, Norway.

|April 6, 2021

Summary

This summary is machine-generated.

Bacteria utilize mobile DNA elements to strategically activate antibiotic resistance genes when needed. This genetic flexibility aids survival in challenging environments.

Keywords:

P. aeruginosa antibiotic resistance demand evolutionary biology experimental evolution infectious disease integron microbiology

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Last Updated: Nov 10, 2025

Testing the Role of Multicopy Plasmids in the Evolution of Antibiotic Resistance

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Published on: September 20, 2016

Area of Science:

Microbiology
Genetics

Background:

Antibiotic resistance is a major global health threat.
Bacteria possess mechanisms to acquire and express resistance genes.

Purpose of the Study:

To elucidate the role of mobile DNA in bacterial antibiotic resistance gene regulation.
To understand how bacteria 'select' resistance genes on demand.

Main Methods:

Analysis of bacterial genomes and mobile genetic elements.
Gene expression studies under antibiotic pressure.

Main Results:

Identified specific mobile DNA structures facilitating gene selection.
Demonstrated inducible expression of antibiotic resistance genes.

Conclusions:

Mobile DNA plays a crucial role in the adaptive antibiotic resistance of bacteria.
Understanding these mechanisms can inform new therapeutic strategies.