Question

Microbes responsible for nitrogen fixation

Answer 1

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Nitrogen fixation is carried out naturally in the soil by a wide range of microorganisms termed diazotrophs that include bacteria such as Azotobacter, and archaea. Some nitrogen-fixing bacteria have symbiotic relationships with some plant groups, especially legumes.✔✔

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Answer 2

free living- Rhodospirillum, Beijernickia,

symbiotic-

leguminous plants- Rhizobium

non leguminous plants- Frankia