Question

Mycorrhiza in higher plants helps in

• A. Absorption of phosphates and water from soil
• B. $N_2$ fixation
• C. Water supply and resistance against disease
• D. Both A and C

Answer 1

The correct option is D Both A and C

Mycorrhiza are association of fungus with roots of higher plants like gymnosperms. The mycorrhiza helps in absorption of water and nutrients like phosphorous from the soil. In recent years, there were many reports indicating that mycorrhiza had antagonistic function to soilborne disease pathogen, or could suppress the growth of pathogen, and increase the resistance or tolerance of mycorrhizal plants to soil borne disease.