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Applied and Environmental Microbiology, December 2007, p. 7793-7795, Vol. 73, No. 23
0099-2240/07/$08.00+0     doi:10.1128/AEM.01898-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Identification of a Malate Chemoreceptor in Pseudomonas aeruginosa by Screening for Chemotaxis Defects in an Energy Taxis-Deficient Mutant{triangledown}

Carolina Alvarez-Ortega1,2 and Caroline S. Harwood1*

Department of Microbiology, University of Washington, Seattle, Washington 98195-7242,1 Department of Microbiology, University of Iowa, Iowa City, Iowa 522422

Received 17 August 2007/ Accepted 2 October 2007

We found that a robust energy taxis response mediated by the Aer receptor can sometimes mask chemotaxis mediated by other methyl-accepting chemotaxis proteins (MCPs) in Pseudomonas aeruginosa. We identified PA2652 as a chemoreceptor for malate by screening aer mcp double mutants by using swarm plate assays.

* Corresponding author. Mailing address: Department of Microbiology, Box 357242, 1705 N.E. Pacific Street, University of Washington, Seattle, WA 98195-7242. Phone: (206) 221-2848. Fax: (206) 221-5041. E-mail: csh5{at}u.washington.edu

{triangledown} Published ahead of print on 12 October 2007.

Applied and Environmental Microbiology, December 2007, p. 7793-7795, Vol. 73, No. 23
0099-2240/07/$08.00+0     doi:10.1128/AEM.01898-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.



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  • Miller, R. M., Tomaras, A. P., Barker, A. P., Voelker, D. R., Chan, E. D., Vasil, A. I., Vasil, M. L. (2008). Pseudomonas aeruginosa Twitching Motility-Mediated Chemotaxis towards Phospholipids and Fatty Acids: Specificity and Metabolic Requirements. J. Bacteriol. 190: 4038-4049 [Abstract] [Full Text]  


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