Cuticle Layer of a Plant

The cuticle layer of a plant covers the outer cell layer, the epidermis, of the aerial segments of land parts. It is a non-cellular protective layer that keeps plants from desiccating, being harmed by UV radiation, and other types of chemical, biological, and physical agents. It also provides support to the plant. The cuticle basically has the same function as the human skin. The cuticle covers the epidermis of leaves. This layer consists of hydrocarbon and lipid polymers impregnated with wax. Epidermal cells synthesize these polymers.


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