Which of the following is found in symbiotic association with leguminous plants?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Rhizobium
Option (3) Rhizobium — Correct. Rhizobium forms root nodules on legumes.
NCERT Extract:
Microbes as Biofertilisers – “… The main sources of biofertilisers are bacteria, fungi and cyanobacteria. You have studied about the nodules on the roots of leguminous plants formed by the symbiotic association of Rhizobium. These bacteria fix atmospheric nitrogen into organic forms, which is used by the plant as nutrient.”