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In most bacteria cell division is mediated by a protein super‐complex called the divisome that co‐ordinates the constriction and scission of the cell envelope. FtsZ is the first of the divisome proteins to accumulate at the division site and is widely thought to function as a force generator that constricts the cell envelope. In this study we have used a combination of confocal fluorescence microscopy...
We present a fluorescence recovery after photobleaching‐based method for monitoring the progression of septal Z‐ring contraction in dividing Escherichia coli cells. In a large number of cells undergoing division, we irreversibly bleached cytosolically expressed Enhanced Green Fluorescent Protein on one side of the septal invagination and followed the fluorescence relaxation on both sides of the septum...