I want to know the answer to the following question:
What is the name of a bacteria inside of tree roots?
All the background I'm provided with is that "Examples include diverse microbiomes, rhizobia, nitrogen-fixing bacteria that live in root nodules on legume roots; actinomycete nitrogen-fixing bacteria called Frankia, which live in alder tree root nodules; single-celled algae inside reef-building corals; and bacterial endosymbionts that provide essential nutrients to about 10%–15% of insects.". Is that enough to answer the question?