ヒドラの中膠にみられる微細構造について

概要

論文の詳細を見る
In Hydra magnipapillata the mesoglea takes place between the epidermal and gastrodermal layers and evenly distributed throughout the whole body except in the central area of the basal disk, where it thickens. It shows metachromasy with 0.01% toluidine blue buffered at pH 6.0, but with the same dye buffered at pH 2.2 only a portion of mesoglea at the basal disk faintly stains metachromatically. The electron microscopic examination of mesoglea reveals that in an amorphous matrix a meshwork of fine filaments, small electron-dense granules (300-400Å in diameter), and tubular bodies are embedded. The tubular bodies, measuring about 600Å in diameter, are not straight and at least 1.3μ in length. They seem to be enclosed in fibrous covering and very often contain several small dense granules (400Å). Similar structures are also present in cells of gastrodermal and epidermal layers and also in extracellular spaces in both layers. It has been confirmed that the granules are accumulated in the mesoglea at the basal disk more than any other region.
社団法人日本動物学会の論文
1968-10-15