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Journal of Bacteriology, February 2005, p. 1533-1535, Vol. 187, No. 4
0021-9193/05/$08.00+0     doi:10.1128/JB.187.4.1533-1535.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Expression of Pseudomonas aeruginosa aer-2, One of Two Aerotaxis Transducer Genes, Is Controlled by RpoS

Chang Soo Hong,1 Akio Kuroda,1 Noboru Takiguchi,1 Hisao Ohtake,2 and Junichi Kato1*

Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, Hiroshima,1 Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, Osaka, Japan2

Received 8 October 2004/ Accepted 12 November 2004

Pseudomonas aeruginosa possesses two aerotaxis transducers, Aer and Aer-2. A deletion-insertion mutation of alternative sigma factor RpoS eliminated Aer-2-mediated aerotaxis but not Aer-mediated aerotaxis. Transcriptional analysis revealed that cheY2, cheA2, cheW2, and aer-2 were expressed in an RpoS-dependent manner as a single transcript.

* Corresponding author. Mailing address: Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8530, Japan. Phone: 81-82-424-7757. Fax: 81-82-424-7047. E-mail: jun{at}hiroshima-u.ac.jp.

Journal of Bacteriology, February 2005, p. 1533-1535, Vol. 187, No. 4
0021-9193/05/$08.00+0     doi:10.1128/JB.187.4.1533-1535.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



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