Section Through Leaf Of Zinnia is a photograph by Dr Jeremy Burgess which was uploaded on May 7th, 2013.
Section Through Leaf Of Zinnia
False-colour scanning electron micrograph of the under surface of a leaf, Zinnia elegans, showing a part of the epidermis removed to reveal the... more
Title
Section Through Leaf Of Zinnia
Artist
Dr Jeremy Burgess
Medium
Photograph
Description
False-colour scanning electron micrograph of the under surface of a leaf, Zinnia elegans, showing a part of the epidermis removed to reveal the spongy mesophyll layer (left) under the surface. The epidermis (right) consistis of large, irregular cells with waterproofing constituents in the wall. The jigsaw effect corresponds to the epidermal cells. The epidermis shows stomatal pores, which regulate the exchange of air between the atmosphere and the leaf's interior. Mesophyll cells are large and attached at limited points only, creating airspaces through which the air entering via the pores circulates freely through the leaf. Magnification x150 at 6x4.5cm size.
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May 7th, 2013
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