epidermal cell - Hutchinson encyclopedia article about epidermal cell Printer Friendly
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epidermis
(redirected from epidermal cell)

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epidermis

Outermost layer(s) of cells on an organism's body. In plants and many invertebrates such as insects, it consists of a single layer of cells. In vertebrates, it consists of several layers of cells.

The epidermis of plants and invertebrates often has an outer noncellular cuticle that protects the organism from desiccation.

In vertebrates, such as reptiles, birds, and mammals, the outermost layer of cells is dead, forming a tough, waterproof layer, which is sloughed off continuously or shed periodically.



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Several changes were observed after collagen glycation: (1) fibroblast shape and distribution (vimentin staining) were modified; (2) extracellular matrix molecules and the dermal-epidermal junction zone seemed to be enhanced (procollagen I and III, collagen IV and VII stainings); (3) stainings for beta1 and alpha6 integrins were also increased in the epidermal cell layer; and (4) collagenase activity was increased.
Bergmann, along with Juan Dong, a postdoctoral researcher, and Cora MacAlister, a doctoral candidate, both in the Biology Department, tracked BASL in epidermal cells of Arabidopsis, a small plant used for genetic studies.
 
 
 
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