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Multifunctional, Micropipette-based Method for Incorporation And Stimulation of Bacterial Mechanosensitive Ion Channels in Droplet Interface Bilayers
09:54

Multifunctional, Micropipette-based Method for Incorporation And Stimulation of Bacterial Mechanosensitive Ion Channels in Droplet Interface Bilayers

Published on: November 19, 2015

A role for mechanosensitive channels in chloroplast and bacterial fission

Margaret Wilson1, Elizabeth Haswell

  • 1Department of Biology, Washington University in Saint Louis, Saint Louis, MO, USA.

Plant Signaling & Behavior
|February 7, 2012
PubMed

Insights

Mechanosensitive channels, like MSL2, influence cell division by affecting FtsZ ring placement in bacteria and chloroplasts. This suggests a conserved role for these channels in regulating cell division processes.

Area of Science:

  • Cell biology
  • Microbiology
  • Plant science

Background:

  • Cell division in bacteria and chloroplasts relies on the FtsZ ring, regulated by the Min system.
  • Mechanosensitive ion channels were previously found to impact FtsZ ring assembly in Arabidopsis chloroplasts and E. coli.
  • In chloroplasts, mechanosensitive channels act via the same pathway as the Min system.

Purpose of the Study:

  • To investigate the effect of heterologous expression of Arabidopsis MS channel homolog MSL2 on FtsZ ring placement in E. coli.
  • To explore potential molecular mechanisms of MS channel involvement in chloroplast and bacterial division.

Main Methods:

  • Heterologous expression of Arabidopsis MSL2 in E. coli.
  • Microscopy to observe FtsZ ring placement in E. coli.

Main Results:

  • Heterologous expression of Arabidopsis MSL2 in E. coli altered FtsZ ring placement.
  • This indicates a conserved function of MS channels in bacterial and chloroplast division.

Conclusions:

  • Mechanosensitive channels, exemplified by MSL2, play a role in regulating cell division site selection.
  • Further research is needed to elucidate the precise molecular mechanisms by which MS channels influence division in different cellular contexts.

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