Question

Anabaena a nitrogen fixer is present in the root pocket of

Answer 1

Leguminous plant

Hope it helps

Answer 2

Answer:

Azolla- water fern.

Explanation:

• Anabaena is a filamentous, cyanobacterium or blue-green algae often found in shallow water. This is a free-living nitrogen fixer who lives as a symbiont and possesses the nitrogen-fixing ability.

• Some non-leguminous plants also contribute to significant nitrogen fixation. For example Azolla- a water fern that harbours Anabaena azollae on their leaves i.e as a symbiont in the Anabaena-Azolla association.
• A close observation under a microscope reveals the presence of the bacterium in the pocket like structures of the root of this hydrophyte. Such association is beneficial in the rice field during cultivation.

Hence Anabaena a nitrogen fixer is present in the root pocket of Azolla.