Contribution to the histology of Biomphalaria glabrata


Autoria(s): Lemos,Queli Teixeira
Data(s)

01/08/1999

Resumo

A combination of histological techniques applied to the study of Biomphalaria glabrata yielded some interesting new data about the histology of this snail, a major intermediate host of Schistosoma mansoni in Brazil. Three kinds of pigments were identified: a dark pigment which bleached following oxidation with potassium permanganate; a lipofuchsin-like, diastase-resistant PAS-positive pigment and an iron-containing pigment, probably related to hemosiderin. Calcium was detected in small deposits within the connective tissue and forming a dense core inside the chitinous radular teeth. The presence of fibrils, staining with sirius-red and birefringence under polarized light strongly suggest primitive collagen tissue. The radular apparatus appeared as a storing site for glycogen, while abundant Alcian-blue positive material (proteoglycans) was extremely concentrated in the radular sac.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821999000400002

Idioma(s)

en

Publicador

Sociedade Brasileira de Medicina Tropical - SBMT

Fonte

Revista da Sociedade Brasileira de Medicina Tropical v.32 n.4 1999

Palavras-Chave #Biomphalaria glabrata #Histology #Pigments
Tipo

journal article