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plant cuticle
A plant cuticle is a protecting film covering the epidermis of leaves, young shoots and other aerial plant organs without periderm. It consists of lipid and hydrocarbon polymers impregnated with wax, and is synthesized exclusively by the epidermal cells.〔Kolattukudy, PE (1996) Biosynthetic pathways of cutin and waxes, and their sensitivity to environmental stresses. In: Plant Cuticles. Ed. by G. Kerstiens, BIOS Scientific publishers Ltd., Oxford, pp 83-108〕
==Description==
The plant cuticle is a layer of lipid polymer impregnated with waxes that is present on the outer surfaces of the primary organs of all vascular land plants.
It is also present in the sporophyte generation of hornworts, and in both sporophyte and gametophyte generations of mosses 〔Budke, J.M., Goffinet, B. and Jones, C.S. (2013). Dehydration protection provided by a maternal cuticle improves offspring fitness in the moss ''Funaria hygrometrica''. Annals of Botany doi:10.1093/aob/mct033〕 The plant cuticle forms a coherent outer covering of the plant that can be isolated intact by treatment of plant tissue with enzymes such as pectinase and cellulase.
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