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Journal of Bacteriology, June 2008, p. 4095-4099, Vol. 190, No. 11
0021-9193/08/$08.00+0     doi:10.1128/JB.00187-08
Copyright © 2008, American Society for Microbiology. All Rights Reserved.

CSF, a Species-Specific Extracellular Signaling Peptide for Communication among Strains of Bacillus subtilis and Bacillus mojavensis{triangledown}

Mridula Pottathil,{dagger} April Jung,{ddagger} and Beth A. Lazazzera*

Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095

Received 6 February 2008/ Accepted 16 March 2008

ComX and CSF are Bacillus subtilis extracellular signaling peptides. Many different strains of B. subtilis do not communicate due to strain-specific variation of ComX. We demonstrate that CSF is a species-specific signaling molecule that partially compensates for the lack of ComX-mediated communication between different strains of B. subtilis.

* Corresponding author. Mailing address: Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine, University of California, Los Angeles, 405 Hilgard Ave., Los Angeles, CA 90095. Phone: (310) 794-4804. Fax: (310) 206-5231. E-mail: bethl{at}microbio.ucla.edu

{triangledown} Published ahead of print on 28 March 2008.

{dagger} Present address: XLTech Group, 1901 S. Harbor City Blvd., Ste. 600, Melbourne, FL 32901.

{ddagger} Present address: St. Mary Medical Center, 1050 Linden Ave., Long Beach, CA 90813.

Journal of Bacteriology, June 2008, p. 4095-4099, Vol. 190, No. 11
0021-9193/08/$08.00+0     doi:10.1128/JB.00187-08
Copyright © 2008, American Society for Microbiology. All Rights Reserved.



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