Solution:
Frankia alni is a gram-positive species of actinomycete filamentous bacterium that lives in symbiosis with non-leguminous plants like Alnus.
Which of the following flowering plant contains a filamentous nitrogen-fixing microbe in its nodules?
Frankia alni is a gram-positive species of actinomycete filamentous bacterium that lives in symbiosis with non-leguminous plants like Alnus.