Sinorhizobium meliloti

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Sinorhizobium meliloti
Scientific classification
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Alpha Proteobacteria
Order: Rhizobiales
Family: Rhizobiaceae
Genus: Sinorhizobium
Species: S. meliloti
Binomial name
Sinorhizobium meliloti

Sinorhizobium meliloti is a nitrogen-fixing bacterium (rhizobium). It forms a symbiotic relationship with legumes from the genera Medicago, Melilotus and Trigonella, including model legume Medicago truncatula. The S. meliloti genome contains three replicons: a 3.65 megabase chromosome and two megaplasmids, pSymA (1.35 megabases) and pSymB (1.68 megabases), that have all been fully sequenced.

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