Question

How does coralloid roots in Cycas respond to gravity?

Answer 1

Coralloid roots are negatively geotropic roots found in Cycads. The middle cortex of coralloid roots contains nitrogen fixing species of cyanobacterium named Anabaena cycadae. Thus coralloid roots play important role in supplying nitrogen to plants.

Answer 2

Answer:

Roots are positvely and negatively geotropic which helps plants to respond to the gravity..

Caralloid roots are coral - like ,dichotomously, fleshy negatively geotropic arise from the lateral branches of normal roots and help in responding to gravity

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