Chromosome replication and cell division in plasmid-containing Escherichia coli B/r
نویسندگان
چکیده
منابع مشابه
Control of Chromosome and Plasmid Replication in Escherichia coli
Olsson, J. 2003. Control of chromosome and plasmid replication in Escherichia coli. Acta Universitatis Upsaliensis. Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 838. 65 pp. Uppsala. ISBN. 91-5545627-8 Life is cellular. Cells grow and divide to give two new cells; this process is called the cell cycle. The chromosome in a bacterium is replicated int...
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The key processes of the bacterial cell cycle are controlled and coordinated to match cellular mass growth. We have studied the coordination between replication and cell division by using a temperature-controlled Escherichia coli intR1 strain. In this strain, the initiation time for chromosome replication can be displaced to later (underreplication) or earlier (overreplication) times in the cel...
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Cell size and DNA concentration were measured in Escherichia coli K-12 ET64. This strain carries a dnaA(Ts) mutation that has been suppressed by the insertion of the F plasmid into the chrontosome. ET64 can grow in a balanced steady state of exponential growth at the restrictive temperature for its dnaA allele (39°C), in which chromosome replication is controlled by the F plasmid, and at the pe...
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Citrate utilization plasmids have previously been identified in atypical Escherichia coli isolates. A different citrate-utilizing (Cit+) variant of E. coli K-12 arose as a consequence of two chromosomal mutations (B. G. Hall, J. Bacteriol. 151:269-273, 1982). The processes controlling the transport of citrate in both a Cit+ chromosomal mutant and a Cit+ plasmid system were studied. Both systems...
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Both the autonomous and chromosomally integrated F plasmids were found to replicate in a nonrandom fashion after a density transfer from heavy medium ([13C]glucose, 15NH4) to light medium ([12C]glucose, 14NH4). The data are consistent with the hypothesis that both the chromosome and the F plasmid are replicated in a cell cycle-specific manner. Thus, these data support the proposal (J. D. Keasli...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1979
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.137.3.1151-1157.1979