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What are nitrogen-fixing bacteria?


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Solution

Nitrogen-fixing bacteria:

  1. Nitrogen-fixing bacteria are organisms capable of fixing atmospheric nitrogen into simpler forms.
  2. They derive nitrogen from the atmosphere and convert it into ammonia in the soil.
  3. The nitrogen is fixed into ammonia, nitrites, and nitrates that are absorbed by plants.
  4. They exist in a symbiotic relationship with plant roots and root hairs and aid in plant growth.
  5. Examples of such microorganisms are Rhizobium, Azospirillum, Cyanobacteria, and Klebsiella.

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