Morphology and Distribution of the Skin Glands in Xenopus laevis and Their Response to Experimental Stimulations : Morphology
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概要
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Four types of skin glands were observed in the skin of adult Xenopus laevis. Among them, the mucous and the granulated glands showed similar morphological characteristics with those previously reported. In this report, we made detailed description on the saccular gland (referred to as NP gland in the present study) of the male nuptial pad. The small granulated gland which has not been reported so far is also described. The granulated gland and the NP gland were observed to receive innervation inside the secretory compartments. The NP glands were only distributed in the nuptial pad of the male forelimb while the other three kinds of glands were widely distributed throughout the body surface. When the frogs were kept under waterless conditions, the mucous glands secreted a watery substance, the cross sectional area of the skin occupied by the mucous glands being reduced to 46-71% of the control. While, the granulated gland and the small granulated gland were less affected by the water deprivation. Evacuation of contents of the skin glands was recognized only in the mucous glands. After hypophysectomy, a significant decrease in the area of the NP glands occurred accompanied by the disappearance of the nuptial pad, while the mucous and the granulated glands were unchanged. A possible enhanced secretory activity of the small granulated glands was encountered after hypophysectomy. Isoproterenol induced the discharge of viscid white material from the contracted granulated gland both in vivo and in vitro, while other types of skin of glands seemed to be unchanged by this chemical.
- 社団法人日本動物学会の論文
- 1988-04-15
著者
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Inoue S
Department Of Comparative Endocrinology Institute Of Endocrinology Gunma University
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Inoue Sakae
Department Of Comparative Endocrinology Institute Of Endocrinology Gunma University
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Fujikura K
Gunma Univ. Gunma Jpn
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Fujikura Keiko
Department Of Cell Biology Institute For Molecular And Cellular Regulation Gunma University
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TABUCHI MASAHIRO
Department of Comparative Endocrinology, Institute of Endocrinology, Gunma University
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Kurabuchi S
Nippon Dental Univ. Tokyo Jpn
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Kurabuchi Shingo
Department Of Biology Faculty Of Science Kanazawa University
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Tabuchi M
Tsumura & Co. Tokyo Jpn
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Tabuchi Masahiro
Department Of Comparative Endocrinology Institute Of Endocrinology Gunma University
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Kurabuchi Shingo
Department of Anatomy, Nippon Dental University
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