Question

What organisms do the nitrogen fixation for plants?

Answer 1

Nitrogen fixation:

Nitrogen fixation is the process by which nitrogen is taken from the atmosphere and converted into nitrogen compounds useful for other biochemical processes.

• Non-symbiotic or free-living bacteria:

1. These are free-living bacteria that help increase the nutrient quantity.
2. It includes the Nostoc, Anabaena, cyanobacteria, Beijerinckia, Clostridium, and Azotobacter.

• Symbiotic Bacteria:

1. Such species live in root nodules of certain plants.
2. Symbiotic or mutualistic bacteria such as Rhizobium which is linked with leguminous plants and other Azospirillum species.