The Ultrastructure of the Gastrodermis and the Nutrition of the Gill Parasitic Atriaster heterodus Lebedev and Paruchin, 1969 (Platyhelminthes: Monogenea)

Memórias do Instituto Oswaldo Cruz

Cláudia P Santos¹  Thais Souto-padrón²  Reinalda M Lanfredi² 

[1] ,Universidade Santa Úrsula

关键词: Atriaster heterodus;    Diplodus argenteus;    Monogenea;    fish;    Brazil;    nutrition;   

DOI  :  10.1590/S0074-02761998000200028

来源: SciELO

【 摘 要 】

The gastrodermis of Atriaster heterodus Lebedev & Paruchin, 1969 (Polyopisthocotylea), a gill parasite from Diplodus argenteus (Valenciennes, 1830), is composed of "U"-shape hematin cells and a connecting syncytium, both having cytoplasmic lamellae. These cells show outgrowths and bent folds which were seen to enclose lumen material. The trapped material was then subjected to endocytosis. The nature of ingested food material was comparatively analyzed by cytochemical and histochemical tests. Blood residues were detected in the gut but tests for mucins were negative. No intact erythrocytes were observed in the gut lumen.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License