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Effect of Anaerobiosis and Nitrate on Gene Expression in Pseudomonas aeruginosa

M. J. Filiatrault, V. E. Wagner, D. Bushnell, C. G. Haidaris, B. H. Iglewski,^* and L. Passador

Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, Rochester, New York 14642

Received 15 October 2004/ Returned for modification 24 November 2004/ Accepted 2 February 2005

DNA microarrays were used to examine the transcriptional response of Pseudomonas aeruginosa to anaerobiosis and nitrate. In response to anaerobic growth, 691 transcripts were differentially expressed. Comparisons of P. aeruginosa grown aerobically in the presence or the absence of nitrate showed differential expression of greater than 900 transcripts.

Editor: J. T. Barbieri

Present address: Thomson Physicians World, 150 Meadowlands Parkway, Secaucus, NJ 07094.

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