The induction of Sinorhizobium meliloti C4-dicarboxylate transport system (Dct) is regulated by oxyg

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The Sinorhizobium meliloti C4-dicarboxylate transport (Dct) system is essential for symbiotic nitrogen fixation. The dctA gene, encoding the C4-dicarboxylate permease, is expressed in both free living and symbiotic cells. But in free living cells expressi
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