ムラサキイガイの中腸腺内における盲嚢細管の分布と消化過程の同調性

概要

論文の詳細を見る
A detailed study was made on the distribution of digestive tubules within the midgut gland, to estimate digestive phase in each specimen of the mussel Mytilus edulis.Of the three parts (anterior, middle and posterior) in cross sections of the midgut gland, the middle contained more numerous tubules (about 1200 tubules) than the other two (about 1000, respectively). In each section, the tubules within the right half were approximately equal in number to those in the left half and the abdominal area contained more tubules than the dorsal. The mussels examined did not show two types of synchrony (monophasic and diphasic), and all four tubule types were always observable throughout the diverticula in each specimen collected.Therefore, it is concluded that the samples obtained from an overall area of a right or left half in the cross section of the midgut gland are adequate than those from the dorsal or abdominal area for estimation of the digestive phase in the mussel specimen.The clustering of the tubules around common and neighboring secondary ducts showed similar tubule types in the histological structure.
日本水産學會の論文