Match List I with List II and select the correct answer using the code given below the lists :
List I
(Plant) | List II
(Biofertilizer) |
|---|
| A. Soyabean | 1. Anabaena |
| B. Azolla | 2. Rhizobium |
| C. Pine | 3. Azospirillum |
| D. Maize | 4. Mycorrhiza |
[amp_mcq option1=”3 4 1 2″ option2=”2 1 4 3″ option3=”2 4 1 3″ option4=”3 1 4 2″ correct=”option2″]
This question was previously asked in
UPSC CAPF – 2011
Different plants form symbiotic relationships with specific microorganisms that act as biofertilizers, enhancing nutrient uptake, most notably nitrogen fixation. Legumes like soybean associate with *Rhizobium*. The aquatic fern *Azolla* hosts the cyanobacterium *Anabaena azollae*. Many trees, including pine, form mutualistic associations with fungi known as *Mycorrhizae*. Cereals like maize can associate with bacteria like *Azospirillum* in their root zone.