Fine Structural Change of the Follicular Cells during Oosorption in the Starved Lady Beetle, Epilachna vigintioctomaculata MOTSCHULSKY, with Special Reference to the Demonstration of Acid Phosphatase

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概要

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• During oosorption in Epilachna vigintioctomaculata, fine structural changes occurred in the egg follicle ; significant increase of autophagic vesicles in the apical region of the follicular cells, extrusion of cytoplasmic projections into the oocyte following disappearance of the microvilli, and deformation and liquification of the proteid and lipid yolk spheres attacked by lysosome-like bodies, and formation of residual structures, such as myelin figures, vacuoles, membranous components and others. These changes may indicate that the follicular cells uptake actively the dissolving ooplasm by their phagocytic activities. According to the electronhistochemy, acid phosphatase activity was recognized in the almost all of the lysosome-like structures, microvilli and intercellular spaces between the electron dense and light cells consisting of the follicular epithelium. This enzyme probably acts not only to autolize the microvilli of the follicular cells and oocyte but to dissolve the cortical ooplasm.

• 日本昆虫学会の論文
• 1981-03-25

著者

• Kurihara Morihisa

  Laboratory Of Applied Entomology Faculty Of Agriculture Iwate University

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• Biological and Histological Studies on the Ovarian Development of the European Pine Sawfly Neodiprion sertifer GEOFFORY (Hymenoptera, Diprionidae)
• Fine Structural Change of the Follicular Cells during Oosorption in the Starved Lady Beetle, Epilachna vigintioctomaculata MOTSCHULSKY, with Special Reference to the Demonstration of Acid Phosphatase

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