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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 98, No. 7, 2003, pp. 905-908
Bioline Code: oc03179
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 98, No. 7, 2003, pp. 905-908

 en Ultrastructural Study of the in Vitro Interaction between Biomphalaria glabrata check for this species in other resources Hemocytes and Schistosoma mansoni check for this species in other resources Miracidia
Wolfan Araque; Emilia E Barrios; Pedro Rodríguez; Víctor S Delgado & Héctor J Finol

Abstract

Biomphalaria glabrata check for this species in other resources and Schistosoma mansoni check for this species in other resources relationship was studied by light microscopy (LM) and freeze-fracture replica technique (FFR). We observed very thin cytoplasmic extensions of hemocytes in the LM, which then surround immobilize the miracidia. FFR images showed that the contact site between hemocytes cytoplasmic extensions and the external tegumentary coat involved only superficial layers of miracidia. Numerous vacuoles and filopodia were observed in the hemocyte cytoplasm, the latter binding with those from neighboring cells. In spite of the close interfilopodia contact, no cellular junctions were seen at these sites nor between filopodia-miracidia contact areas. The observed migration of hemocytes and their disposition in layers surrounding the miracidia in vitro correspond to previous studies.

Keywords
Biomphalaria glabrata check for this species in other resources - Schistosoma mansoni check for this species in other resources - freeze-fracture replica

 
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