Ultrastructure of cutaneous gland in the Asiatic land salamander, Hynobius leechi, 2: granular gland
1980
Kim, H.H. | Noh, Y.T. | Chung, Y.H. | Chi, Y.D. (Catholic Medical Coll., Seoul (Korea R.). Dept. of Biology)
The ultrastructure of the granular glands in the Asiatic land salamander (Hynobius leechi) skin were observed by means of electron microscope. The granular gland consisted of a body of gland and a duct. The body of the granular gland consisted of the glandular epithelial cells and the myoepithelial cells. The duct of the granular gland consisted of the keratinocytes. The glandular epithelial cells in the Asiatic land salamander skin were divided into the dark cells and the light cells in accordance with the electron density of the cytoplasm. The secretory granules of the granular glands were round or oval in form and were divided into the various granules, showing the strong, median and weak electron densities. Especially, the secretory granules showing weak electron density had the parts showing strong electron density near the granular membrane. It was supposed that showing the different electron densities of the granules in a glandular epithelial cell was due to different mature stages and to different level of water absorption, and the chemical components of the granules showing different electron densities were identical.
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