The katA catalase gene is regulated by OxyR in both free-living and symbiotic Sinorhizobium meliloti |
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| Authors: | Jamet Alexandre Kiss Ernö Batut Jacques Puppo Alain Hérouart Didier |
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| Institution: | Laboratoire Interactions Plantes-Microorganismes et Santé Végétele, UMR, INRA, Université de Nice Sophia-Antipolis, CNRS, 400 Route des Chappes, BP 167, F-06903 Sophia Antipolis Cedex, France. |
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| Abstract: | The characterization of an oxyR insertion mutant provides evidences that katA, which encodes the unique H2O2-inducible HPII catalase, is regulated by OxyR not only in free-living Sinorhizobium meliloti but also in symbiotic S. meliloti. Moreover, oxyR is expressed independently of exogenous H2O2 and downregulates its own expression in S. meliloti. |
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