What is the name of the bacteria that help in dissolving the nitrogen in soil?


Rhizobia (sing. rhizobium) are root-nodule bacteria found in leguminous plants that helps in dissolving nitrogen in soil.


Leguminous plants, including important crops such as peas, beans and soybeans form a unique symbiotic relationship with rhizobia, by allowing them to infect their roots.

This leads to the formation of root nodule, where rhizobia are accommodated to convert nitrogen gas (N2) from the air into ammonia by using their specific enzyme called nitrogenase that is not found in plants or animals.


This ammonia is converted into plant protein, which helps plants to grow.

This symbiotic relationship with rhizobium bacteria allows legumes to thrive in habitats with limited nitrogen availability.

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Updated on: 27-Mar-2023

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