Where Do You Find Nitrogen Fixing Bacteria?

There are two main types of nitrogen-fixing bacteria. Symbiotic, or mutualistic, species live in root nodules of certain plants. Plants of the pea family, known as legumes, are some of the most important hosts for nitrogen-fixing bacteria, but a number of other plants can also harbour these helpful bacteria.

Where do most nitrogen-fixing bacteria live?

Most nitrogen fixation occurs naturally, in the soil, by bacteria. In Figure 3 (above), you can see nitrogen fixation and exchange of form occurring in the soil. Some bacteria attach to plant roots and have a symbiotic (beneficial for both the plant and the bacteria) relationship with the plant [6].

Where are the nitrogen-fixing bacteria found Class 9?

The nitrogen-fixing bacteria are found in the roots of legumes in special structures called root nodules.