Sinorhizobium meliloti

Sinorhizobium meliloti
Sinorhizobium meliloti strain Rm1021 on an agar plate.
Scientific classification
Kingdom:	Bacteria
Phylum:	Proteobacteria
Class:	Alpha Proteobacteria
Order:	Rhizobiales
Family:	Rhizobiaceae
Genus:	Sinorhizobium
Species:	S. meliloti
Binomial name
Sinorhizobium meliloti (Dangeard 1926) De Lajudie et al. 1994, comb. nov.
Type strain
ATCC 9930 CCUG 27879 CFBP 5561 CIP 107332 DSM 30135 HAMBI 2148 IAM 12611 ICMP 12623 IFO 14782 JCM 20682 LMG 6133 NBRC 14782 NCAIM B.01520 NCIMB 12075 NRRL L-45 NZP 4027 OUT 30010 USDA 1002
biovars
S. m. bv. acaciae S. m. bv. ciceri S. m. bv. lancerottense S. m. bv. medicaginis S. m. bv. mediterranense S. m. bv. meliloti S. m. bv. rigiduloides S. m. ecotype NRR
Synonyms
Rhizobium meliloti Dangeard 1926 Ensifer meliloti (Dangeard 1926) Young 2003

CCUG 27879
CFBP 5561
CIP 107332
DSM 30135
HAMBI 2148
IAM 12611
ICMP 12623
IFO 14782
JCM 20682
LMG 6133
NBRC 14782
NCAIM B.01520
NCIMB 12075
NRRL L-45
NZP 4027
OUT 30010
USDA 1002

Sinorhizobium meliloti is a Gram-negative nitrogen-fixing bacterium (rhizobium). It forms a symbiotic relationship with legumes from the genera Medicago, Melilotus and Trigonella, including the model legume Medicago truncatula. This symbiosis results in a new plant organ termed a root nodule. The S. meliloti genome contains three replicons: a chromosome (~3.7 megabases) and two chromids, pSymA (~1.4 megabases) and pSymB (~1.7 megabases). Five S. meliloti genomes have been sequenced to date: Rm1021, AK83, BL225C, Rm41, and SM11

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