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Journal of Bacteriology, March 2007, p. 2110-2113, Vol. 189, No. 5
0021-9193/07/$08.00+0     doi:10.1128/JB.01802-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Identification of Novel Sinorhizobium meliloti Mutants Compromised for Oxidative Stress Protection and Symbiosis{triangledown}

Bryan W. Davies and Graham C. Walker*

Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Received 29 November 2006/ Accepted 8 December 2006

Employing a novel two-part screen, we identified Sinorhizobium meliloti mutants that were both sensitive to hydrogen peroxide and symbiotically defective on the host plant Medicago sativa. The mutations affect a wide variety of cellular processes and represent both novel and previously identified genes important in symbiosis.

* Corresponding author. Mailing address: Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139. Phone: (617) 253-6711. Fax: (617) 253-2643. E-mail: gwalker{at}mit.edu.

{triangledown} Published ahead of print on 15 December 2006.

Journal of Bacteriology, March 2007, p. 2110-2113, Vol. 189, No. 5
0021-9193/07/$08.00+0     doi:10.1128/JB.01802-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.



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