What is the right sequence of steps during infection of plants by nitrogen- fixing bacteria?

Question

Quizplus · Accepted Answer

The correct sequence of steps during infection of plants by nitrogen-fixing bacteria is as follows: roots release flavonoids to attract rhizobia, rhizobia release Nod factors to stimulate the formation of root hairs and initiate nodulation, rhizobia proliferate inside the root hair, an infection thread grows into the root cortex, and finally a nodule forms where the rhizobia differentiate into bacteroids and fix atmospheric nitrogen for plant use. Therefore, the correct sequence is roots release flavonoids; rhizobia release Nod factors; rhizobia proliferate inside of root hair; infection thread grows into the root cortex; nodule forms.

What Is the Right Sequence of Steps During Infection of Plants