Investigating Bacterial Chromosome Architecture

  • Christian LesterlinEmail author
  • Nelly DuabrryEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 1431)


How is the bacterial chromosome organized within the bacterial cell? Over the last 60 years, a variety of approaches have been used to investigate this question. More recently, the parallel development of epifluorescence microscopy and genetic tools has enabled the direct visualization of the intracellular positioning of DNA sequences in live cells and has consequently revolutionized our view of the architecture of the nucleoid in vivo. In this chapter I present a comprehensive methodology designed to characterize the architecture of the nucleoid DNA and the positioning of specific DNA sequences in live Escherichia coli cells. DNA localization systems, preparation of stable agarose-mounted microscopy slides, and basic image analysis tools are mentioned.

Key words

Bacterial chromosome DNA architecture and dynamics Live cell imaging Epifluorescence microscopy 



Thanks to Nelly Dubarry for critical reading. This work was supported by ATIP-Avenir 2014 grant (CNRS and INSERM) and Finovi Funding to Christian Lesterlin.


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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.MMSB - Molecular Microbiology and Structural BiochemistryUniversité Lyon 1, CNRS, UMR 5086Lyon Cedex 07France

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