Osmotic Shock Induction of the Expression of Vibrio fischeri lux Genes in Escherichia coli Cells

Osmotic Shock Induction of the Expression of Vibrio fischeri lux Genes in Escherichia coli Cells The effect of osmotic shock on the expression of genes in the lux regulon of marine bacteria Vibrio fischeri was studied in cells ofEscherichia coli. Bioluminescence of cells was shown to drastically increase, when cells were exposed to osmotic shock at the early logarithmic growth phase, at far lower optic densities as compared to the critical optic density characteristic. The expression of lux genes induced by osmotic shock is determined by the two-component regulatory system RcsC–RcsB. A nucleotide sequence in the regulatory region of the luxR gene homologous to the RcsB-box consensus of E. coli is assumed to be a primary site for this system. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Osmotic Shock Induction of the Expression of Vibrio fischeri lux Genes in Escherichia coli Cells

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2003 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1023/A:1023301529636
Publisher site
See Article on Publisher Site

Abstract

The effect of osmotic shock on the expression of genes in the lux regulon of marine bacteria Vibrio fischeri was studied in cells ofEscherichia coli. Bioluminescence of cells was shown to drastically increase, when cells were exposed to osmotic shock at the early logarithmic growth phase, at far lower optic densities as compared to the critical optic density characteristic. The expression of lux genes induced by osmotic shock is determined by the two-component regulatory system RcsC–RcsB. A nucleotide sequence in the regulatory region of the luxR gene homologous to the RcsB-box consensus of E. coli is assumed to be a primary site for this system.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Oct 7, 2004

References

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