GEMMULE Meaning and
Definition
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A gemmule, in the realm of biology, refers to a small asexual reproductive structure or bud found in certain organisms, especially in freshwater sponges. Gemmules are significant for their ability to withstand adverse environmental conditions such as desiccation, extreme temperatures, and lack of nutrients. They serve as a means of survival during unfavorable periods, as they are capable of remaining dormant until conditions become more favorable.
In freshwater sponges, gemmules are typically composed of a cluster of cells, enveloped within a tough outer layer or protective covering. These unique structures are produced by specialized cells within the sponge known as archaeocytes. When conditions become unfavorable, these cells transform into specialized reproductive structures called gemmule cells. The gemmules are then released from the sponge's body, either through incidental breakage or active expulsion.
Once released, gemmules can remain dormant for extended periods, even years if necessary. This dormancy ensures their survival in harsh environments. When conditions become suitable, gemmules germinate, with the cells inside differentiating into sponge tissues and structures. This process allows for the regeneration and propagation of the species.
Overall, gemmules are remarkable asexual reproductive structures that aid in the survival and dispersal of certain organisms, particularly freshwater sponges, during unfavorable environmental conditions.
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The first bud of the embryo; a little bud or gem.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for GEMMULE
- femmule
- vemmule
- bemmule
- hemmule
- yemmule
- temmule
- gwmmule
- gsmmule
- gdmmule
- grmmule
- g4mmule
- g3mmule
- genmule
- gekmule
- gejmule
- gemnule
- gemkule
- gemjule
- gemmyle
- gemmulde
Etymology of GEMMULE
The word "gemmule" is derived from the Latin term "gemmula", which means a little bud or tiny gem. It is the diminutive form of the Latin word "gemma", which refers to a gem or jewel. In biology, the term "gemmule" was first used by Charles Darwin in his theory of pangenesis to describe hypothetical hereditary particles or units that could be transferred between generations. This concept of gemmules played a significant role in early evolutionary theories and the understanding of inheritance.
Similar spelling words for GEMMULE
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