Mechanism for the Regulation of Cell Division in Agmenellum

Overview

Journal J Bacteriol

Publisher American Society for Microbiology

Specialty Microbiology

Date 1973 Feb 1

PMID 4632309

Citations 8

Authors

L O Ingram

W D Fisher

Affiliations

Soon will be listed here.

Abstract

We describe a nonlethal temperature-conditional mutant of Agmenellum quadruplicatum which allows dissociation of the processes of growth and cell division. With this system, evidence has been obtained for the regulation of one step in the process of cell division by a small effector molecule. The effector molecule is apparently released into the surrounding medium and can be obtained from lyophilized spent medium by extraction with 80% ethanol. The addition of this extract to serpentine filaments of the SN29 mutant strain stimulates cell division in these filaments and leads to the production of cells approximating normal dimensions within one generation time. The degree of stimulation of cell division is directly related to the amount of extract added. A general hypothesis is presented for the positive regulation of the initiation of cell wall and cell membrane invagination in this organism.

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Differentiation after premature release of intraperiplasmically growing Bdellovibrio bacteriovorous.

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Control of cell division in bacteria.

Slater M, Schaechter M Bacteriol Rev. 1974; 38(2):199-221.

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Stimulation of cell division by croton oil in blue-green bacteria.

Ingram L, Fisher W J Bacteriol. 1973; 114(2):874-5.

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Peptidoglycan synthesis and turnover in cell division mutants of Agmenellum.

Dickens B, Ingram L J Bacteriol. 1976; 127(1):334-40.

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