4.2 Article

Transient enhanced cell division by blocking DNA synthesis in Escherichia coli

Journal

MICROBIOLOGY-SGM
Volume 166, Issue 6, Pages 516-521

Publisher

MICROBIOLOGY SOC
DOI: 10.1099/mic.0.000888

Keywords

DNA replication; cell division and dimensions; nucleoid morphology

Categories

Funding

  1. Sociedad Espanola de Genetica (SEG)
  2. FPI studentship from the Junta de Extremadura
  3. EMBO Short-Term Fellowship
  4. Junta de Extremadura [GRU15065]
  5. United States -Israel Binational Science Foundation [2017004]
  6. Israel Science Foundation

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Duplication of the bacterial nucleoid is necessary for cell division hence specific arrest of DNA replication inhibits divisions culminating in filamentation. nucleoid dispersion and appearance of a-nucleated cells. It is demonstrated here that during the first 10min however, Escherichia coli enhanced residual divisions: the proportion of constricted cells doubled (to 40%), nudeolds contracted and cells remodelled dimensions: length decreased and width increased. The preliminary data provides further support to the existence of temporal and spatial couplings between the nucleoid/replisome and the sacculus/divisome, and is consistent with the idea that bacillary bacteria modulate width during the division process exclusively.

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