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Epidermis-3

Epidermal Cells produce a Waxy Cuticle which prevents water loss and deters pathogen attack.

CuticleClivia300Lab.jpg (67991 bytes)
Cuticle on the Leaf of Clivia		 CutGaloreHue300Lab.jpg (46187 bytes)
Extraordinarily thick Cuticle

Guard Cells are modified Epidermal Cells. They produce Stomata which Open & Close in response to water availability. These control Gas Exchange which is involved in Photosynthesis.

StomLilyNoGC300Lab.jpg (85714 bytes)
Stomata from a Lily Leaf		 EpiSurfStomTric300Lab.jpg (173369 bytes)
Epidermis showing Stomata and a complex secretory Hair.
StomCPlastGC300Lab.jpg (43961 bytes)
Stomata from Rhoeo: The Guard Cells have Chloroplasts. They open and close depending on the water status of the plant.

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