Question

Corolloid roots of cycas shows association with ______​

Answer 1

Answer:

Coralloid roots of Cycas shows a symbiotic association with Anabaena and Nostoc.

Answer 2

Answer:

blue-green algae

Explanation:

Coralloid roots of Cycas have symbiotic association with the blue green algae. The filamentous blue green algae or cyanobacteria help in nitrogen fixation as they have specialised cells which are called as heterocysts while Cycas provides a habitat for the cyanobacteria to grow.

Symbiotic Association or Symbiosis

Symbiosis or symbiotic association is a term which is used to describe any relationship or interaction between two dissimilar organisms. The specific kind of symbiosis depends on whether either or both organisms benefit from the relationship.

Coralloid roots of cycas

They are specialized roots that are present in Cycas. Coralloid roots are associated with nitrogen-fixing cyanobacteria. These root tissues in conjunction with blue-green algae are also helpful in producing amino acids such as asparagine and citrulline.

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