Symbiotic bacteria are found in the root nodules of members family

Bacteria found in root nodules of legumes are

Bacteria found in root nodules of legumes are

A symbiotic bacteria is

Assertion (A) : Rhizobium leguminosarum is a symbiotic bacterium found in the root nodules of leguminous plants. Reason (R): They have the ability to fix atmospheric nitrogen.

What are the symbiotic bacteria in the root nodules of the liguminous plants ?