The coralloid roots of Cycas have Anabaena (BGA) growing inside their cells. The association between them is called

Question

The coralloid roots of Cycas have Anabaena (BGA) growing inside their cells. The association between them is called (A) commensalism (B) parasitism (C) symbiosis (D) antibiosis

Tardigrade Admin · Accepted Answer

Coralloid roots of Cycas, are irregular negatively geotropic, dichotomously branched coral like roots devoid of root hairs and root caps. These roots have a symbiotic association with blue green algae (BGA) like Nostoc and Anabaena. The BGA fixes nitrogen for the plant and in return gets food and shelter. Such type of assodation,where both the organisms are benefitted is known as symbiosis.

Q. The coralloid roots of Cycas have Anabaena (BGA) growing inside their cells. The association between them is called

commensalism

parasitism

symbiosis

antibiosis

Q. The coralloid roots of Cycas have Anabaena $(BG A)$ growing inside their cells. The association between them is called