ヤマトシロアリ Reticulitermes speratus (Kolbe) におけるセルロース消化系 : II. Trichonympha によるセルロースの取込みと消化活動に伴う微細構造の変化

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Morphological changes related to the ingestion and digestion of cellulose in a flagellate, Trichonympha agilis, were studied with light and electron microscopes. Filamentous materials are distributed densely forming the surface coat at the posterior portion of the protozoa where the phagocytotic ingestion of cellulose occurs. In the phagocytosis of cellulose, the invaginated cell membrane forms food vacuoles locating the characteristic filamentous surface coat on the inner surface of the vacuole. The possible role of this filamentous surface coat in the ingestion of cellulose is discussed. Very soon after formation of the food vacuoles, glycogen granules appearing around the vacuole assemble to form rosette like particles which finally spread over the cytoplasm. With the spreading of glycogen granules, an abundance of small vesicles appear among the glycogen particles. Simultaneously blisters are formed on the cell surface. It is proposed subject to further study that the vesicles and the blisters relate in some way to the excretion of its metabolite.
社団法人日本動物学会の論文
1977-03-25