Sinorhizobium meliloti

**Definition:** A species of gram-negative, aerobic bacteria that causes formation of root nodules on some, but not all, types of sweet clover, MEDICAGO SATIVA, and fenugreek.

**Tree numbers:** - B03.440.400.425.700.887.500 - B03.660.050.662.835.800

**Synonyms:** - Rhizobium meliloti - Ensifer meliloti