Question

what is the corolloid root​

Answer 1

Answer:

Coralloid roots of cycads were found to originate endogenously from the pericycle of apo- geotropic secondary roots or adventitious roots that have become exposed or nearly exposed to the soil surface. .These outgrowths, which are modified perennial lateral roots (Spratt, 1915), are known as coralloid roots.

Explanation:

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Answer 2

Explanation:

Coralloid roots of cycads were found to originate endogenously from the pericycle of apo- geotropic secondary roots or adventitious roots that have become exposed or nearly exposed to the soil surface. These outgrowths, which are modified perennial lateral roots (Spratt, 1915), are known as coralloid roots.

Coralloid roots are specialised roots found in Cycas which are associated with nitrogen-fixing cyanobacteria.

The coralloid roots contain symbiotic cyanobacteria (blue-green algae), which fix nitrogen and, in association with root tissues, produce such beneficial amino acids as asparagine and citrulline.

It is negatively genotypic roots that contain nitrogen fixation bacteria like cyanobacterium. They are found in cycad plants. It is important as it supply nitrogen to the bacteria which is required for the growth and development of the plant.