SPERMODERM Meaning and
Definition
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The term "spermoderm" refers to the outer covering or coat surrounding the seed of a plant. It is predominantly found in gymnosperms, which are a group of plants that produce naked seeds, meaning they are not enclosed within a fruit. The spermoderm plays a crucial role in protecting the seed and aiding in its successful dispersal.
The spermoderm is composed of several layers that differ in thickness, texture, and chemical composition. The outermost layer is known as the outer integument, which is often tough and resistant to damage. It acts as a shield, protecting the internal structures of the seed from physical injury, pathogens, and desiccation.
Beneath the outer integument lies the inner integument, which is usually soft and thin. This layer helps regulate water absorption and allows for gas exchange between the seed and its environment. It also aids in nutrient absorption during germination.
In addition to its protective functions, the spermoderm may also exhibit specialized structures or adaptations that aid in dispersal. These may include wings, hooks, or hairs that assist in wind or animal dispersal by attaching to fur, feathers, or clothing.
Overall, the spermoderm is an essential structure that ensures the survival and propagation of plants. Its diverse composition and adaptations highlight the evolutionary strategies employed by different plant species to ensure successful reproduction and dispersal of seeds.
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In bot., the general coverings of the seed.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for SPERMODERM
- apermoderm
- zpermoderm
- xpermoderm
- dpermoderm
- epermoderm
- wpermoderm
- soermoderm
- slermoderm
- s-ermoderm
- s0ermoderm
- spwrmoderm
- spsrmoderm
- spdrmoderm
- sprrmoderm
- sp4rmoderm
- sp3rmoderm
- speemoderm
- spedmoderm
- spefmoderm
- spetmoderm
Etymology of SPERMODERM
The word "spermoderm" is derived from the combination of two Greek roots: "sperma" (σπέρμα) meaning "seed" and "derma" (δέρμα) meaning "skin" or "covering". Thus, "spermoderm" refers to the protective outer layer or seed coat that surrounds the seed of a plant.
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