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Updated: Mar 9, 2026

Determination of the Optimal Chromosomal Locations for a DNA Element in Escherichia coli Using a Novel Transposon-mediated Approach
11:12

Determination of the Optimal Chromosomal Locations for a DNA Element in Escherichia coli Using a Novel Transposon-mediated Approach

Published on: September 11, 2017

8.0K

The behavior of mobile genetic elements (MGEs) in different environments

Masaki Shintani1,2,3

  • 1a Department of Engineering , Graduate School of Integrated Science and Technology, Shizuoka University , Hamamatsu , Japan.

Bioscience, Biotechnology, and Biochemistry
|January 13, 2017
PubMed

Insights

Mobile genetic elements like the carbazole-degradative plasmid pCAR1 drive bacterial adaptation. Environmental factors and host interactions significantly influence plasmid behavior and bacterial evolution.

Area of Science:

  • Microbiology
  • Bacterial genetics
  • Environmental microbiology

Background:

  • Mobile genetic elements (MGEs), including plasmids, are key drivers of bacterial evolution and adaptation.
  • The carbazole-degradative plasmid pCAR1 from Pseudomonas resinovorans CA10 serves as a model for studying MGE behavior.

Purpose of the Study:

  • To review the behavior of MGEs in diverse environments, focusing on plasmid pCAR1.
  • To investigate host responses and environmental factors influencing plasmid stability and transfer.

Main Methods:

  • Transcriptome analysis of different host strains carrying pCAR1.
  • Monitoring host survival and plasmid transfer in environmental samples.
  • Single-cell level analysis to determine plasmid transfer range.

Main Results:

  • Carrying pCAR1 induced both common and host-specific transcriptional responses.
  • Environmental factors like cations and water content modulated host and plasmid behavior.
  • Nucleoid-associated proteins encoded by pCAR1 are crucial for its genetic stability, maintenance, and transfer.

Conclusions:

  • Environmental conditions and host-plasmid interactions dynamically regulate MGE behavior.
  • Understanding these dynamics is vital for predicting bacterial adaptation and evolution in various settings.
Keywords:
DNA rearrangementconjugative transfermobile genetic elementplasmid host

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