Structure of Gemmules
The micropyle, spicule, inner layer, archaeocytes, and outer pneumatic layer comprise the structure of gemmules. A brief about the structure of gemmules in sponges is given below:
- Gemmules are typically small, rounded structures surrounded by a tough, protective layer called the scleroprotein coat.
- Inside the scleroprotein coat, gemmules contain a mass of undifferentiated cells known as archaeocytes.
- Throughout the mass of archaeocytes, small calcium carbonate spicules are scattered. They provide structural support to the gemmule.
- Gemmules also contain lipid droplets and glycogen granules, which serve as energy reserves to sustain the dormant cells during adverse conditions.
- Some gemmules may possess internal canals that facilitate the exchange of gases and nutrients, aiding in the survival of the enclosed cells.
Gemmule – Formation, Structure and Role in Sponge Reproduction
Gemmules are the asexual reproductive structures found in some freshwater and marine sponge species. The gemmules in sponges are produced in adverse weather circumstances, including drought or low temperatures. The gemmules play a role in giving sponges the ability to tolerate harsh environmental conditions. In this article, we will study the gemmules in sponges, their structure, characteristics, and their advantages.
Table of Content
- What are Gemmules?
- Structure of Gemmules
- Gemmule Diagram
- Parts of Gemmule
- Gemmules Classification
- What are the Characteristics of Gemmules?
- What is the Process of Gemmule Formation?
- Gemmule Formation Examples
- Role of Gemmule in Sponge Reproduction
- Advantages of Gemmule Formation