Differentiate between rhizophore and root of selaginella?

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Answer

Rhizophore and Root Development inSelaginella martensii: Meristem Transitions and Identity. Rhizophores arise from angle meristems located at shoot branch points in many species ofSelaginella and produce roots at their distal ends. ... Eventually, subterraneanroots formed, bearing root hairs and rootcaps.

Answer

I don't think so there is any difference in these both please check the question once again as
Roots of selaginella are itself called rhizophore.

In many species of Selaginella, peculiar leafless, prop-like cylindrical, structures, originate from the stem at the point of branching. These grow downwards into the surface and form many adventitious roots at their free ends. They are known as rhizophores.

Answer

Differentiating between Rhizophore and Root of Selaginella

Rhizophore and root are two distinct structures found in the plant Selaginella. While both are involved in water and nutrient absorption, they possess some key differences. In this response, we will discuss the characteristics and functions of both rhizophores and roots in Selaginella.

Rhizophore:
A rhizophore is a specialized structure found in Selaginella plants. It is a modified stem that functions similarly to a root, aiding in water and nutrient absorption. Here are some key characteristics of rhizophores:

1. Structure: Rhizophores are slender, elongated structures that arise from the base of the Selaginella plant. They possess nodes and internodes, with roots and leaves emerging from the nodes.

2. Origin: Rhizophores are adventitious structures, meaning they arise from non-root tissue. They develop from the base of the Selaginella plant, typically from the lower nodes.

3. Function: The primary function of rhizophores is to absorb water and nutrients from the soil. They have specialized root-like structures called rhizoids that facilitate absorption and anchorage.

4. Growth and Development: Rhizophores exhibit indeterminate growth, meaning they continue to elongate and produce roots and leaves as they grow. This allows Selaginella plants to spread and colonize new areas.

Root:
Roots are another essential structure found in Selaginella plants. They are responsible for anchoring the plant, absorbing water and nutrients, and transporting them to the rest of the plant. Here are some key characteristics of roots in Selaginella:

1. Structure: Roots are typically cylindrical structures that grow underground in Selaginella plants. They possess a root cap at the tip to protect the growing root tissues.

2. Origin: Roots in Selaginella plants are primary structures that develop from the radicle, which is the embryonic root. They emerge from the lower nodes of the plant.

3. Function: The main function of roots is to anchor the plant in the soil and absorb water and nutrients. They have root hairs that increase the surface area for better absorption.

4. Growth and Development: Roots exhibit determinate growth, meaning their growth is limited in length. However, they branch extensively, allowing for increased absorption and anchorage.

Conclusion:
In summary, rhizophores and roots in Selaginella plants share the common function of absorbing water and nutrients. However, rhizophores are specialized stems that arise from non-root tissue and have rhizoids for absorption, while roots are primary structures that develop from the radicle and possess root hairs. Understanding the differences between these structures helps in comprehending the unique adaptations of Selaginella plants for survival and growth.

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