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Question

What organisms do the nitrogen fixation for plants?


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Solution

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.

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