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Bacteria have remarkably robust cell shape control mechanisms. For example, cell diameter only varies by a few percent across a given population. The bacterial actin homolog, MreB, is necessary for establishment and maintenance of rod shape although the detailed properties of MreB that are important for shape control remained unknown. In this study, we perturb MreB in two ways: by treating cells with...
In virtually all bacteria, the cell wall is crucial for mechanical integrity and for determining cell shape. Escherichia coli's rod‐like shape is maintained via the spatiotemporal patterning of cell‐wall synthesis by the actin homologue MreB. Here, we transiently inhibited cell‐wall synthesis in E. coli to generate cell‐wall‐deficient, spherical L‐forms, and found that they robustly reverted to a...
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