Question

Name the type of root modification found in plants growing in marshy areas. What is their function?

Answer 1

Answer:

Pneumatophores.

Explanation:

Pneumatophores are modification of roots seen mostly in mangrove trees. these roots are negatively geotrophic. These come out of the soil and move upward into the air to facilitate the diffusion of oxygen through them. These roots have large number of lenticels that allow the diffusion of oxygen into the roots. Pneumatophores aid the survival of the plants in the saline condition where the normal roots cannot uptake sufficient amount of oxygen from the soil.