If a plant forms an infection thread in one of its root hairs, it is preparing to form a

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When a plant forms an infection thread in one of its root hairs, it is preparing to form a root nodule. Root nodules are formed in the roots of some plants, such as legumes, as a result of a symbiotic relationship with nitrogen-fixing bacteria. The bacteria enter the plant through an infection thread, which grows into a nodule where the bacteria convert nitrogen from the air into a form that can be used by the plant.

If a Plant Forms an Infection Thread in One of Its