The fine structure of intra-erythrocytic stages of Babesia bigemina

Show simple item record Potgieter, F.T. Els, H.J.
dc.contributor.editor Bigalke, R.D.
dc.contributor.editor Cameron, Colin McKenzie
dc.contributor.editor Gilchrist, Frances M.C.
dc.contributor.editor Morren, A.J.
dc.contributor.editor Verster, Anna J.M.
dc.contributor.editor Verwoerd, Daniel Wynand
dc.contributor.editor Walker, Jane B.
dc.contributor.other De Kock, V.E. 2016-07-06T10:25:14Z 2016-07-06T10:25:14Z 2016 1977
dc.description The articles have been scanned in colour with a HP Scanjet 5590; 300dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format. en_ZA
dc.description.abstract The electron microscope was used to study the structure of merozoites, merozoites in the process of transformation to trophozoites, trophozoites, and the method of multiplication of B. bigemina. The merozoites were piriform in shape and surrounded by 3 peripheral membranes of which the 2 inner ones often appeared as a single thick osmiophilic structure (inner membrane). Anterior and posterior polar rings, microtubules, micronemes, rhoptries and mitochondria with and without tubular cristae were discernible. A single large unidentified spherical body was present in most of the mature merozoites. After penetration of an erythrocyte, merozoites developed into trophozoites through a transformation process which involved the loss of the inner membrane of the pellicle, rhoptries, most of the micronemes and the spherical body. The trophozoites were surrounded by a single membrane, were pleomorphic in shape and contained large inclusions of host cell cytoplasm, but no cytostomes or food vacuoles could be identified. Reproduction took place through a process resembling schizogony resulting in the production of 2 merozoites, the cytoplasmic constituents of the original trophozoite (mother cell) being virtually entirely incorporated into the daughter cells in the process. None of the parasites were contained in parasitophorous vacuoles. en_ZA
dc.identifier.citation Potgieter, FT & Els, HJ 1977, 'The fine structure of intra-erythrocytic stages of Babesia bigemina’, Onderstepoort Journal of Veterinary Research, vol. 44, no. 3, pp. 157-167.
dc.identifier.issn 0330-2465
dc.language.iso en en_ZA
dc.publisher Pretoria : The Government Printer en_ZA
dc.rights © 1977 ARC – Onderstepoort and Faculty of Veterinary Science, University of Pretoria (original). © 2016 University of Pretoria. Department of Library Services (digital). en_ZA
dc.subject Babesia en_ZA
dc.subject.lcsh Veterinary medicine -- South Africa
dc.title The fine structure of intra-erythrocytic stages of Babesia bigemina en_ZA
dc.type Article en_ZA

Files in this item

This item appears in the following Collection(s)

Show simple item record