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Ultrastructure of sarcocysts from water buffalo in India.
Dubey, J P; Speer, C A; Shah, H L.
Afiliação
  • Dubey JP; Livestock and Poultry Sciences Institute, U.S.D.A., Beltsville, MD 20705.
Vet Parasitol ; 34(1-2): 149-52, 1989 Nov.
Article em En | MEDLINE | ID: mdl-2511659
The ultrastructure of sarcocysts of macro- and microscopic species of Sarcocystis was compared from naturally infected water buffalo from India. Grossly visible sarcocysts had walls consisting of cauliflower-like villar protrusions, typical of S. fusiformis. The sarcocyst wall of the microscopic species of Sarcocystis was 6.4 microns thick and consisted of tightly packed conical villar protrusions that were 9.6 microns long and 3.7 microns wide at the base. At approximately 3 microns above the base, the distal two-thirds of the villar protrusion became conical shaped and was bent laterally at an angle of 45 degrees to the sarcocyst surface. The granular layer beneath the villar protrusions was 0.9 microns thick. In S. levinei the granular layer was 1.9 microns thick, the villar protrusions were narrow and it had a highly undulating primary cyst wall. Whether the microscopic S. levinei-like sarcocysts of Indian and Malaysian water buffalo are distinct species of Sarcocystis will require further investigation.
Assuntos
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Base de dados: MEDLINE Assunto principal: Búfalos / Sarcocystis / Sarcocistose Limite: Animals País como assunto: Asia Idioma: En Ano de publicação: 1989 Tipo de documento: Article
Buscar no Google
Base de dados: MEDLINE Assunto principal: Búfalos / Sarcocystis / Sarcocistose Limite: Animals País como assunto: Asia Idioma: En Ano de publicação: 1989 Tipo de documento: Article