Abstract

The excretory system ultrastructure and immunocytochemistry have been investigated in the plerocercoid Pyramicocephalus phocarum. It has been shown that P. phocarum has independent terminal cells, cyrtocytes. The entire canal system is a single undivided syncytium, which includes nephridial funnels of the terminal tubules, and peripheral and central canals. The nephridial funnel and cyrtocyte form a filtration complex of the protonephridial type. In the caudal region, several peripheral canals open into a deep fold of the tegument, the urinary bladder. The excretory pores are separated from the tegument by annular septate desmosomes. There are no cell junctions inside the excretory system. The presence of the F-actin ring and the expression of non-synaptic serotonin in the collar area have been detected in cyrtocytes by immunocytochemistry methods.

中文翻译：

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Plerocercoid Pyramicocephalus phocarum (Cestoda: Diphyllobothriidea) 排泄系统的结构：独立终末细胞存在的证据

摘要

已对plerocercoid Pyramicocephalus phocarum的排泄系统超微结构和免疫细胞化学进行了研究。已经表明P. phocarum有独立的终末细胞，细胞。整个管系统是一个单一的未分开的合胞体，包括终末小管的肾漏斗、外周管和中央管。肾漏斗和红细胞形成原肾型过滤复合物。在尾部区域，几个外周管通向外皮的深皱襞，即膀胱。排泄孔通过环状隔膜桥粒与外皮分离。排泄系统内部没有细胞连接。通过免疫细胞化学方法在细胞中检测到 F-肌动蛋白环的存在和领区非突触血清素的表达。