Question

Identify the role of lectins in the formation of root nodules in legumes.

• A. Recognition of compatible Rhizobium by host.
• B. Formation of peribacteroid membrane.
• C. Formation of infection thread.
• D. Formation of shepherd's crook.

Answer 1

The correct option is A Recognition of compatible Rhizobium by host.

Lectin is a carbohydrate-binding protein that participates in plant defense against predators and pathogens. It is also involved symbiotic interactions between host plants and symbiotic microbes, including mycorrhizal fungi and nitrogen-fixing rhizobia.

So, the correct answer is option A.