scholarly journals Termination of DNA replication is required for cell division in Escherichia coli.

1989 ◽  
Vol 171 (1) ◽  
pp. 74-79 ◽  
Author(s):  
N Grossman ◽  
E Rosner ◽  
E Z Ron
Keyword(s):  
Escherichia Coli ◽  
Cell Division ◽  
Dna Replication

scholarly journals Toxin Kid uncouples DNA replication and cell division to enforce retention of plasmid R1 in Escherichia coli cells

2014 ◽  
Vol 111 (7) ◽  
pp. 2734-2739 ◽  
Author(s):  
B. Pimentel ◽  
R. Nair ◽  
C. Bermejo-Rodriguez ◽  
M. A. Preston ◽  
C. A. Agu ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Cell Division ◽  
Dna Replication ◽  
Plasmid R1 ◽  
Escherichia Coli Cells

scholarly journals Transient enhanced cell division by blocking DNA synthesis in Escherichia coli

Microbiology ◽  
2020 ◽  
Vol 166 (6) ◽  
pp. 516-521 ◽  
Author(s):  
Carmen Mata Martín ◽  
Arieh Zaritsky ◽  
Itzhak Fishov ◽  
Elena C. Guzmán
Keyword(s):  
Escherichia Coli ◽  
Cell Division ◽  
Dna Replication ◽  
Dna Synthesis ◽  
Preliminary Data ◽  
Type Species ◽  
Content Type ◽  
Bacterial Nucleoid ◽  
Division Process ◽  
Temporal And Spatial

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 10 min however, Escherichia coli enhanced residual divisions: the proportion of constricted cells doubled (to 40%), nucleoids 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.

scholarly journals Nucleoid-Independent Identification of Cell Division Sites in Escherichia coli

1999 ◽  
Vol 181 (6) ◽  
pp. 1900-1905 ◽  
Author(s):  
William R. Cook ◽  
Lawrence I. Rothfield
Keyword(s):  
Escherichia Coli ◽  
Cell Division ◽  
Dna Replication ◽  
Site Formation ◽  
Uniform Distance ◽  
Division Site

ABSTRACT The mechanism used by Escherichia coli to determine the correct site for cell division is unknown. In this report, we have attempted to distinguish between a model in which septal position is determined by the position of the nucleoids and a model in which septal position is predetermined by a mechanism that does not involve nucleoid position. To do this, filaments with extended nucleoid-free regions adjacent to the cell poles were produced by simultaneous inactivation of cell division and DNA replication. The positions of septa that formed within the nucleoid-free zones after division was allowed to resume were then analyzed. The results showed that septa were formed at a uniform distance from cell poles when division was restored, with no relation to the distance from the nearest nucleoid. In some cells, septa were formed directly over nucleoids. These results are inconsistent with models that invoke nucleoid positioning as the mechanism for determining the site of division site formation.

ppGpp-mediated regulation of DNA replication and cell division in Escherichia coli

1995 ◽  
Vol 30 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Gideon Schreiber ◽  
Eliora Z. Ron ◽  
Gad Glaser
Keyword(s):  
Escherichia Coli ◽  
Cell Division ◽  
Dna Replication
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