期刊
OPEN BIOLOGY
卷 13, 期 7, 页码 -出版社
ROYAL SOC
DOI: 10.1098/rsob.230020
关键词
fluorescence microscopy; fluorescent reporters; Min oscillations; single cell imaging; sublethal; bacterial stress response
Min oscillations are an intriguing mechanism used by Escherichia coli to monitor the effect of sublethal environmental challenges on bacterial physiology. This review discusses the use of Min oscillations as a reporting tool to monitor the effect of extracellular cationic compounds and explores its potential to visualize stress responses and understand bacterial cell death. The physiological meaning of changes in Min oscillation period and the benefits and limitations of using oscillations as a reporter in fluorescence microscopy are also discussed.
Min oscillations are a fascinating mechanism used by Escherichia coli to find their middle. Beyond their biological role, they provide a convenient and relatively unexplored method to monitor the effect of sublethal environmental challenges on bacterial physiology in real-time and at the single-cell level. In this review, we discuss the original papers that put forward the idea of using Min oscillations as a reporting tool to monitor the effect of extracellular cationic compounds, including antibiotics. More recent work from our laboratory explores this tool to follow bacterial response to other challenges such as weak mechanical interactions with nanomaterials or photodynamic treatment. We discuss the physiological meaning of the changes in Min oscillation period, likely related to membrane potential dynamics, as well as the benefits and limitations of using oscillations as a reporter in fluorescence microscopy. Overall, Min oscillations are a useful addition to the fluorescence microscopy toolbox in order to visualize stress responses in E. coli, and have the potential to provide full mechanistic understanding of the events that lead to bacterial cell death in different contexts.
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