What is the Difference Between Mycorrhiza and Coralloid Roots?

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Mycorrhiza and coralloid roots are both types of symbiotic associations between plants and microorganisms, but they differ in the specific organisms involved and the benefits they provide. Here are the main differences between mycorrhiza and coralloid roots:

  • Mycorrhiza: This is a symbiotic association between the roots of a higher plant and a fungus. The fungus helps the plant obtain nutrients and water from the soil, while the plant provides the fungus with carbohydrates and other nutrients. Mycorrhiza can be found in plants like Pinus (a gymnosperm).
  • Coralloid Roots: These roots are specialized cycads roots that are in symbiotic association with nitrogen-fixing cyanobacteria. The cyanobacteria help the plant fix atmospheric nitrogen, which is then used by the plant for its growth and development. Coralloid roots are seen in Cycas (a gymnosperm).

Both mycorrhiza and coralloid roots are examples of mutualism, which is a type of symbiosis in which both partners benefit from their association. The key difference between the two is the specific organisms involved and the benefits they provide to the host plant.

Comparative Table: Mycorrhiza vs Coralloid Roots

Here is a table comparing the differences between mycorrhiza and coralloid roots:

Feature Mycorrhiza Coralloid Roots
Definition Mycorrhiza is a symbiotic association between roots of a higher plant and a fungus. Coralloid roots are specialized cycads roots that are in symbiotic association with nitrogen-fixing cyanobacteria.
Type of Symbiosis Mutualistic, where both partners benefit from the association. Mutualistic, where both partners benefit from the association.
Host Plants Observed in Pinus (a gymnosperm). Seen in Cycas (a gymnosperm).
Function The fungus helps the plant access water and nutrients, while the plant provides the fungus with carbohydrates. The cyanobacteria help in nitrogen fixation, providing the plant with essential nutrients.

Both mycorrhiza and coralloid roots are examples of mutualistic symbiosis, where both partners benefit from their association.