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The Light and Electron Microscopic Localizations of Acid Phosphatase Activity in the Mid-Gut Gland of the Juvenile Blue Crab, Portunus trituberculatus


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Title: The Light and Electron Microscopic Localizations of Acid Phosphatase Activity in the Mid-Gut Gland of the Juvenile Blue Crab, Portunus trituberculatus
Other Titles: ガザミ稚カニの中腸腺におけるAcid phosphatase活性の光顕的及び電顕的検出
Authors: Yoshikoshi, Kazuma / Fukase, Shuichiro
Authors (alternative): 吉越, 一馬 / 深瀬, 周一郎
Issue Date: Nov-1988
Publisher: 長崎大学水産学部
Citation: 長崎大学水産学部研究報告, v.64, pp.1-9; 1988
Abstract: Histochemical and ultracytochemical examinations on the localizations of acid phosphatase (ACPase) activity were carried out in the mid-gut gland of the blue crab, Portunus trituberculatus, at the first adult-form stage. ACPase activity was detected in both lysosomal and extralysosomal sites. The extralysosomal sites were located in the plasma membranes of the apical, lateral and basal regions of R, F and B cells and, occasionally, in the cytoplasmic matrix and mitochondrial membranes of R and F cells. ACPase activity was not detected in the E cells and the secretory vacuoles of the F cells. These findings gave insight into the participation of each cell type of the mid-gut gland in the digestion and absorption of food. / ガザミの第1齢稚カニの中腸腺におけるAcid phosphatase活性の局在部位を光顕及び電顕レベルで検討した。Acid phosphatase活性はリソソーム及びこれに関連する構造物だけでなく,中腸腺の機能的細胞であるR, F, B細胞の表層,側面及び基底部の形質膜やR, F細胞の細胞基質及びミトコンドリア膜にも認められた。このような非リソソーム性Acid phosphatase活性は哺乳類の組織細胞に存在することが知られているが,中腸腺細胞の酵素は基質特異性において哺乳類のそれとは性質を異にしていた。Acid phosphatase活性はF細胞の分泌液胞及び未分化細胞(E細胞)には認められなかった。 本研究で示されたAcid phosphatase活性の局在部位は,中腸腺細胞の構造と機能を明らかにするうえで有益な示唆を与えた。
Keywords: blue crab / mid-gut gland / acid phosphatase / enzyme histochemistry and ultracytochemistry
URI: http://hdl.handle.net/10069/30246
ISSN: 05471427
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:第64号

Citable URI : http://hdl.handle.net/10069/30246

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