胆嚢頸部に見出された弧立線毛の微細構造

概要

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Two types of single cilia in the mouse gallbladder collum were observed by transmission and scanning electron microscopy. One type of cilia, which was longer than the other, was called L type cilium, and the other was called S type cilium. L type cilium was curved and 10-15 μm in length. The basal structure of L type ciliun showed a "two centriole type". The wall of the basal body was composed of nine sets of triplet microtubules. In the most proximal portion of the cilium, however, both singlet and doublet microtubules showed a 7+2 or an 8+1 pattern, while in the more distal portion, doublet ones decreased in number. L type cilium was similar to the structure of cilia which are already known in the bile duct cells. Thus, it seemed that the bile duct cells invaded collum epithelium. S type cilium was straight, 1-3 μm in length. In the mots proximal portion of S type cilium and microtubules were arranged nine peripheral doublets and showed a 9+0 pattern. Both L and S type cilia were present in the same kind of cells in gallbladder collum. Therefore, it is possible to consider that S type cilium is an immature L type cilium.
社団法人日本動物学会の論文
1982-03-25