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Journal of Bacteriology, March 2002, p. 1455-1457, Vol. 184, No. 5
0021-9193/02/$04.00+0     DOI: 10.1128/JB.184.5.1455-1457.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Bypass of A- and B-Signaling Requirements for Myxococcus xanthus Development by Mutations in spdR

*** Hubert Tse,{dagger} and Ronald E. Gill*

Department of Microbiology, University of Colorado Health Sciences Center, Denver, Colorado 80262

Received 22 February 2001/ Accepted 29 November 2001

Mutations in spdR, previously reported to bypass the developmental requirement for B-signaling in Myxococcus xanthus, also bypass the requirement for A-signaling but not C-, D-, or E-signaling. Mutations in spdR restored nearly wild-type levels of sporulation to representative A-signal-deficient mutants carrying asgA476, asgB480, and asgC767 and improved the quality of fruiting body formation in the asgB480 mutant. The defect in A-factor production by the asgB480 mutant was not restored in the spdR2134 asgB480 double mutant.

* Corresponding author. Mailing address: Department of Microbiology, University of Colorado Health Sciences Center, 4200 E. Ninth Ave., Campus Box B-175, Denver, CO 80262. Phone: 303-315-7832. Fax: 303-315-6785. E-mail: ron.gill{at}uchsc.edu.

{dagger} Present address: Department of Immunogenetics, Children’s Hospital of Pittsburgh, Pittsburgh, PA 15213-3205.

Journal of Bacteriology, March 2002, p. 1455-1457, Vol. 184, No. 5
0021-9193/02/$04.00+0     DOI: 10.1128/JB.184.5.1455-1457.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Cusick, J. K., Hager, E., Gill, R. E. (2002). Characterization of bcsA Mutations That Bypass Two Distinct Signaling Requirements for Myxococcus xanthus Development. J. Bacteriol. 184: 5141-5150 [Abstract] [Full Text]  


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