Question

why nodules are formed in roots?

Answer 1

Rhizobium live freely in soil and in the root region of both leguminous and non-leguminous plants. However, they can enter into symbiosis only with leguminous plants, by infecting their roots and forming nodules on them. Rhizobium live freely in soil and in the root region of both leguminous and non-leguminous plants. The biology of the roots in legumes aids nodule formation. This is the reason for nodules being formed in the roots of the plant.