Which of the following is a symbiotic nitroger fixer?

  • Option 1)

    Azotobacter

  • Option 2)

    Frankia

  • Option 3)

    Azolla

  • Option 4)

    Glomus

 

Answers (1)

 

Symbotic nitrogen fixing bacteria -

1. Rhizobium - associated with roots of legume plants

2. Azolla (water fern) - associated with Anabaena azollae

3. Coralloid roots of Cycas -associated with Anabaena and Nostoc

-

 

 


Option 1)

Azotobacter

Incorrect Option

Option 2)

Frankia

Correct Option

Option 3)

Azolla

Incorrect Option

Option 4)

Glomus

Incorrect Option

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