What are Coralloid Roots

Answer:  Coralloid roots are a special type of root that is found in Cycas that is interrelated with nitrogen-fixing cyanobacteria. Within the coralloid roots, there is a cyanobacterial zone which is usually an area inhabited by cyanobacteria. 

The coralloid roots of Cycad were encountered to initiate endogenously from the pericycle of extrinsic roots that were present in the soil. All the coralloid attachments are susceptible to attack any disease caused by algal endophytes which enter from soil whenever there’s a break in the dermal layers. The coralloid roots have very different and unique kinds of characteristics which ensures a close connection between cyano and cyanobacteria. 

• Coralloid Roots carry symbiotic cyanobacteria or blue-green algae which helps in setting the nitrogen or in nitrogen fixation and then comes in contact with the root tissues and then generates particles like general amino acid which turns out as asparagine and citrulline. Nitrogen fixation is the procedure through which the molecular nitrogen is transformed into ammonia which is future used by the plants and microorganisms for the metabolism process

• It is generated as clusters at the base level of the stem and is produced as protrudes over the ground levels

• It is greenish-brown colored and occurs as dichotomously segmented

• It also carries an algal zone in the cortex.