<原著>小形条虫六鉤幼虫の侵入腺の微細構造と分泌様式について

概要

論文の詳細を見る
The ultrastructure of the penetration glands of Hymenolepis nana oncospheres and the mode of secretory function of the gland were studied with light and electron microscopes. The penetration gland consisted of two distinct cells, and was a U-shaped structure with the narrow cytoplasmic projections. Single row of microtubules occurred where these cytoplasmic projections exited from the posterior surface of the oncosphere. The perinuclear cytoplasm of the gland and cytoplasmic projections were filled with numerous secretory granules. These granules were surrounded by a limiting membrane and contained fine, electron-dense granular materials in their matrices. Ultrastructural examination of the artificially hatched oncospheres suggested that the larvae released their secretory materials as in apocrine secretion where a part of the apical cytoplasm of the gland was lost along with the secretory materials. However, observations on the glands of oncospheres penetrating the intestinal tissues of mice showed that the secretory materials of the gland were secreted from the extremities of the gland through the cytoplasm of the outer layer in a manner similar to merocrine secretion.
近畿大学の論文
1977-09-25