The morphology of the dorsal and ventral skin of Triturus karelinii (Caudata: Salamandridae) |
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Authors: | Ozlem Bingol-Ozakpinar and Osman Murathanoglu |
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Institution: | (1) Department of Environmental Science, Shizuoka University, Ohya 836, Suruga-ku, Shizuoka 422–8529, Japan;(2) Integrated Bioscience Section, Graduate School of Science and Technology, Shizuoka University, Ohya 836, Suruga-ku, Shizuoka 422–8529, Japan;(3) Department of Biology, Faculty of Science, Shizuoka University, Ohya 836, Suruga-ku, Shizuoka 422–8529, Japan;(4) Gunma Prefecture College of Health Science, Maebashi 371–0052, Japan; |
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Abstract: | In this study, for the first time, the morphology of the dorsal and ventral skin of Triturus karelinii using light microscopy through histochemical methods was described. The skin exhibited basic morphological characteristics
of the other urodeles: the epidermis composed of keratinized stratified epithelium with numerous conical protrusions and the
dermis subdivided into spongy and compact layers. In the spongious dermis, three distinct types of glands were observed, namely
serous, mucous and mixed glands. These glands were alveolar and occurred in both males and females. The morphologies of all
three skin glands differed from anurans and other urodeles, having peculiar characteristics. Serous glands exhibited three
different appearances. An unusual finding in mucous glands was the different appearance of their granules, showing diverse
density after staining with PAS and AB. The histochemical analysis clearly demonstrated the presence of neutral, acid and
sulfated mucins in the adenocytes of mucous glands. Mixed glands formed by mucous and serous glands exhibited the same morphological
traits of both types of glands. Light microscopic observations revealed that the dorsal and ventral skin showed structural
similarities with some minor differences, possibly resulting from their functions. |
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