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Journal of Bacteriology, July 2009, p. 4478-4481, Vol. 191, No. 13
0021-9193/09/$08.00+0     doi:10.1128/JB.00082-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Phosphate-Enhanced Stationary-Phase Fitness of Escherichia coli Is Related to Inorganic Polyphosphate Level{triangledown}

Lici A. Schurig-Briccio, Ricardo N. Farías, María R. Rintoul, and Viviana A. Rapisarda*

Departamento Bioquímica de la Nutrición, Instituto Superior de Investigaciones Biológicas (Consejo Nacional de Investigaciones Científicas y Técnicas-Universidad Nacional de Tucumán), and Instituto de Química Biológica Dr. Bernabé Bloj, Chacabuco 461, San Miguel de Tucumán T4000ILI, Argentina

Received 22 January 2009/ Accepted 9 April 2009

We found that Escherichia coli grown in media with >37 mM phosphate maintained a high polyphosphate level in late stationary phase, which could account for changes in gene expression and enzyme activities that enhance stationary-phase fitness.

* Corresponding author. Mailing address: INSIBIO, Departamento Bioquímica de la Nutrición, Charabuco 461, San Miguel de Tucumán T4000ILI, Argentina. Phone and fax: 54-381-4248921. E-mail: vrapisarda{at}fbqf.unt.edu.ar

{triangledown} Published ahead of print on 17 April 2009.

Journal of Bacteriology, July 2009, p. 4478-4481, Vol. 191, No. 13
0021-9193/09/$08.00+0     doi:10.1128/JB.00082-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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