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

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.

Published ahead of print on 15 December 2006.

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