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- W2885706042 abstract "Abstract Many bacteria have complex cell shapes, but the mechanisms producing their distinctive morphologies are still poorly understood. Caulobacter crescentus , for instance, exhibits a stalk-like extension that carries an adhesive holdfast mediating surface attachment. This structure forms through zonal peptidoglycan biosynthesis at the old cell pole and elongates extensively under phosphate-limiting conditions. We analyzed the composition of cell body and stalk peptidoglycan and identified significant differences in the nature and proportion of peptide crosslinks, indicating that the stalk represents a distinct subcellular domain with specific mechanical properties. To identify factors that participate in stalk formation, we systematically inactivated and localized predicted components of the cell wall biosynthetic machinery of C. crescentus . Our results show that the biosynthesis of stalk peptidoglycan involves a dedicated peptidoglycan biosynthetic complex that combines specific components of the divisome and elongasome, suggesting that the repurposing of pre-existing machinery provides a straightforward means to evolve new morphological traits." @default.
- W2885706042 created "2018-08-22" @default.
- W2885706042 creator A5009147960 @default.
- W2885706042 creator A5038987239 @default.
- W2885706042 creator A5053976358 @default.
- W2885706042 creator A5076593604 @default.
- W2885706042 creator A5083893858 @default.
- W2885706042 date "2018-08-09" @default.
- W2885706042 modified "2023-09-29" @default.
- W2885706042 title "A specialized MreB-dependent complex mediates the formation of stalk-specific peptidoglycan in Caulobacter crescentus" @default.
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