Contribution to the histology of Biomphalaria glabrata / Contribuiçäo à histologia da Biomphalaria glabrata
Rev. Soc. Bras. Med. Trop
;
32(4): 343-7, jul.-ago. 1999. ilus
Article
in English, Portuguese
| LILACS
| ID: lil-242900
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 ark 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
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Pigments, Biological
/
Biomphalaria
Language:
English
/
Portuguese
Journal:
Rev. Soc. Bras. Med. Trop
Journal subject:
Tropical Medicine
Year:
1999
Type:
Article
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