MCQ
Which of the following pairs serves as a biofertilizer?
- AAlbugo and Lichen
- BFrankia and Nostoc
- CPseudomonas and E.coli
- DSpirogyra and Mucor
✓
Answer
- Frankia and Nostoc
Explanation:
Frankia is nitrogen fixing bacteria. It lives in symbiosis with actinorhizal plants. Bacteria of this genus also form root nodules. Blue-green algae belonging to a general cyanobacteria genus, Nostoc or Anabaena or Tolypothrix or Aulosira, fix atmospheric nitrogen and are used as inoculations for paddy crop grown both under upland and lowland conditions.
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