Research Article

Histology and Ultrastructure of Transitional Changes in Skin Morphology in the Juvenile and Adult Four-Striped Mouse (Rhabdomys pumilio)

Figure 3

Pigment-containing cells in the four-striped mouse skin. (a), (c), and (e) from adult skin and (b), (d), and (f) from juvenile skin. Pigment-containing cell (p) is interspersed between connective tissue in (a)–(d). Pigment-containing granules are visible in the cell cytoplasm surrounding the nucleus (n) and in the long cytoplasmic extensions (e) and they also lie between adipocytes (f). (a) and (b) are photomicrographs of adult and juvenile dermis, respectively. (c) is electron micrograph of adult dermis; (d) is juvenile dermis; (e) adult hypodermis, and (f) juvenile dermis. a: adipocyte; c: collagen; cp: capillary; m: mast cell. (a) and (b) are Toluidine blue staining and scale bar = 1 µm. Scale bar: (c) = 0.33 µm; (d) = 0.5 µm; (e) = 0.33 µm; (f) = 0.17 µm.
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