Mechanism for the Regulation of Cell Division inAgmenellum | Zendy

L. O. Ingram | Zendy; W.D. Fisher | Zendy

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Mechanism for the Regulation of Cell Division inAgmenellum

Author(s) -

L. O. Ingram,

W.D. Fisher

Publication year - 1973

Publication title -

journal of bacteriology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.652

H-Index - 246

eISSN - 1067-8832

pISSN - 0021-9193

DOI - 10.1128/jb.113.2.1006-1014.1973

Subject(s) - cell division , biology , effector , microbiology and biotechnology , cell , mutant , cell growth , cell membrane , division (mathematics) , stimulation , biophysics , biochemistry , gene , arithmetic , mathematics , neuroscience

We describe a nonlethal temperature-conditional mutant ofAgmenellum 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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