Filippi Jean-José, Quilichini Yann, Foata Joséphine, Marchand Bernard
CNRS UMR 6134 SPE, University of Corsica Pascal Paoli, Parasites and Mediterranean Ecosystems Laboratory, B.P. 52, 20250 Corte, France.
J Parasitol. 2010 Dec;96(6):1102-11. doi: 10.1645/GE-2498.1. Epub 2010 Jul 14.
The tegumental ultrastructure of the intestinal fluke Bucephalus anguillae was studied with the use of scanning and transmission electron microscopy. The surface of the tegument is covered by transverse ridges from which protrude numerous closely packed, digitated, and claw-shaped spines. Cobblestone-like units of the tegument were observed on the crescent-shaped formation of the rhynchus and at the posterior part of the body. Three types of sensory structures were examined, i.e., 2 uniciliated receptors and 1 without cilia. As anterior-posterior differences were observed, particular attention was given to spines and sensory receptors. Spine insertion zones and average cilia length are variable between anterior and posterior tegument areas. Ultrastructural study revealed that the tegument of B. anguillae has a typical syncytial organization with a distal cytoplasm lying over a basal matrix and cytons below. Cytoplasmic bridges allowed transit of secretory vesicles and granules. Diagrams of spines and sensory receptors were made to help in understanding the nature of these structures.
利用扫描电子显微镜和透射电子显微镜对鳗鲡布氏吸虫的皮层超微结构进行了研究。皮层表面覆盖着横向嵴，从这些嵴上伸出许多紧密排列、指状和爪状的刺。在吻突的新月形结构和虫体后部观察到了鹅卵石状的皮层单元。研究了三种类型的感觉结构，即2种单纤毛感受器和1种无纤毛感受器。由于观察到前后差异，特别关注了刺和感觉感受器。皮层前后区域的刺插入区和平均纤毛长度各不相同。超微结构研究表明，鳗鲡布氏吸虫的皮层具有典型的合胞体组织，远端细胞质位于基部基质之上，细胞核位于下方。细胞质桥允许分泌小泡和颗粒通过。绘制了刺和感觉感受器的示意图，以帮助理解这些结构的性质。
