Changes in cell dimensions during amino acid starvation of Escherichia coli

N. Grossman, E. A. Ron, C. L. Woldringh

Research output: Contribution to journalArticlepeer-review

Abstract

Electron microscopic analysis was used to study cells of E. coli B and K-12 during and after amino acid starvation. The results confirmed our previous conclusion that cell division and initiation of DNA replication occur at a smaller cell volume after amino acid starvation. Although during short starvation periods, the number of constricting cells decreased due to residual division, it appears that during prolonged starvation, cells of E. coli B and K-12 were capable of initiating new constrictions. During amino acid starvation, cell diameter decreased significantly. The decrease was reversed only after two generation times after the resumption of protein synthesis and was larger in magnitude than that previously observed before division. This decrease in cell diameter correlates with synchronization of cell division which has been shown to occur after amino acid starvation.

Original languageEnglish
Pages (from-to)35-41
Number of pages7
JournalJournal of Bacteriology
Volume152
Issue number1
StatePublished - 1982

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